9-6-2020 MONTE CORONA, VALENCIA - RUEPPELL'S GLOBETAIL (Sphaerophoria rueppellii)

Sphaerophoria rueppellii is a highly effective, native Mediterranean hoverfly used as a commercial biocontrol agent against aphid pests. Known as the common globetail, these predatory larvae consume aphids, thrips, and whiteflies, while adults are crucial pollinators. They are favored for greenhouse IPM (Integrated Pest Management) and sustainable agriculture.

Key Biological and Functional Facts:

Appearance: A small, slender hoverfly with a characteristic bulbous abdomen in males, which often has yellow-black markings resembling a wasp

.Biological Control: Larvae are voracious predators that feed on numerous aphid species, plus thrips, whiteflies, and spider mites.Optimal Conditions: They thrive in warm climates (active up to 30°C).Life Cycle: At \(25^{\circ}C\) and \(90\%\) relative humidity, their development from egg to adult takes approximately 17 days.

Habitat: Commonly found in open, sparse vegetation such as field edges, marshes, and agricultural crops, particularly in Southern Europe and North Africa.

Adult Diet: Adults feed on nectar and pollen, which is necessary for the maturation of their ovaries.Flight Period: Generally active from April to October.

7-6-2020 MONTE CORONA, VALENCIA - WAVE MOTH (Idaea ostrinaria)

Idaea ostrinaria (Coral-bordered Wave) is a small geometrid moth found in European, Mediterranean, and Western Asian xerophilous (dry) habitats, typically at 0–800m altitude. It features a characteristic coral-red bordered wing and is polyphagous, with larvae feeding on withered foliage and detritus from herbaceous plants like thyme (Thymus) and heliotrope (Heliotropium). 

Key Facts about Idaea ostrinaria:

Scientific Classification: Belongs to the order Lepidoptera, family Geometridae, and subfamily Sterrhinae.

Habitat: Prefers dry, coastal areas, and warm, open landscapes.

Appearance: Known for its reddish or "coral-bordered" wing markings, often featuring a delicate, pale, or brownish-grey ground color.

Larval Diet: Polyphagous, meaning they eat a variety of plants, including Labiatae (mint family), Boraginaceae, Campanulaceae, Convolvulaceae, and Caryophyllaceae.

Range: Primarily found in South-West Europe, the Mediterranean region, and parts of Western Asia.

Flight Season: Frequently observed in late spring and summer months (e.g., June sightings). 

8-6-2020 MONTE CORONA, VALENCIA - SCARCE FOOTMAN MOTH (Eilema complana)

Manulea complana, the scarce footman, is a moth of the family Erebidae. The species was first described by Carl Linnaeus in his 1758 10th edition of Systema Naturae. It is found throughout the Palearctic region.

Larva

Technical description and variation

The wingspan is 28–35 mm. It is very like Eilema morosinum (Herrich-Schäffer, [1847]) but the forewing not so elongate, and the angles not so accentuated, the costal streak broader and brighter yellow, the hindwing duller, not so transparent; the apex of the abdomen brighter yellow. On the underside the disc is very blackish iron grey, and contrasts vividly with the orange-yellow costa and the broad pale yellow marginal area. Hindwing beneath pale yellow, the costa deeper yellow; below costa a grey streak from the base.

The moth flies from June to August depending on the location.

Larva blackish dorsally, with narrow lighter lines; subdorsal lines composed of small reddish yellow and white spots; lateral line interrupted, reddish yellow. The larvae feed on lichen and mosses, but also leaves of low growing plants on occasion.

7-6-2020 MONTE CORONA, VALENCIA - FLAT HEADED ROOT BORER (Capnodis tenebrionis)

Capnodis tenebrionis (flat-headed root-borer) is a devastating pest of stone fruit trees (cherry, peach, almond, apricot) in Mediterranean regions. Larvae cause major damage by boring into roots and trunks. Key facts include a 13-month lifecycle, 13-25mm size, and white larvae, which can be managed by biological agents like e-nema nematodes. 

Key Facts About the Flat-Headed Root-Borer (Capnodis tenebrionis)

Pest Type: It is a jewel beetle (Buprestidae family) that predominantly attacks stone fruit trees in Southern Europe, North Africa, and Asia.

Destructive Life Stage: The larva is the most destructive stage, living within the tree for up to a year, eating through roots and the root collar, as detailed in the Atlas of Forest Pests.

Damage Symptoms: Larvae feed under the bark, creating tunnels and filling them with frass (sawdust-like waste). This causes tree weakness, dieback of branches, and often death of young trees.

Lifecycle: Adults emerge in spring, with females laying thousands of eggs in the soil near tree bases. Larvae hatch and burrow into the roots.

Identification: Adult beetles are oval, flattened, and black or dark gray, usually 15-25 mm long. Larvae are white, soft-bodied, and worm-like with a distinctively broad, flattened "head" (actually the thorax).

7-6-2020 GANDIA, VALENCIA - SPOTTED FLYCATCHER (Muscicapa striata)

he Spotted Flycatcher, Muscicapa striata, is a modestly adorned yet charming small passerine bird belonging to the Old World flycatcher family. It is a migratory species, breeding across Europe and the Palearctic as far as Siberia, and spending the winter months in Africa and southwestern Asia. Despite its widespread presence, there is concern over its decline in certain areas.

Adult Spotted Flycatchers possess grey-brown upperparts and a somewhat pallid underbelly. Their crown and breast are streaked, which is the origin of their common name. They have short, black legs and a black bill shaped to suit their insectivorous diet. Juveniles can be distinguished by their browner plumage and the presence of spots on their upperparts.

These birds favor deciduous woodlands, parks, and gardens, particularly those with open spaces amidst trees.

The Spotted Flycatcher has a broad breeding range, extending from Europe to western Siberia and northwest Africa. During the non-breeding season, they migrate to southern Africa.

With an upright posture, these flycatchers are often seen hunting from prominent perches, darting out to snatch flying insects and frequently returning to the same spot.

The call of the Spotted Flycatcher is a soft, high-pitched, and slightly descending 'tssssseeeeeppppp'.

The Spotted Flycatcher constructs an open nest in a recess, often against a wall, and is amenable to using open-fronted nest boxes. Clutches typically consist of 4-6 eggs. Remarkably, they exhibit excellent egg recognition, a likely evolutionary response to past parasitism by the common cuckoo.

The Mediterranean flycatcher, previously considered a subspecies, is similar in appearance but has been recognized as a separate species due to genetic differences.

As aerial insectivores, Spotted Flycatchers feed on flying insects, which they catch in mid-air from their vantage points.

7-6-2020 GANDIA, VALENCIA - LITTLE EGRET (Egretta garzetta)

The little egret (Egretta garzetta) is a species of small heron in the family Ardeidae. It is a white bird with a slender black beak, long black legs and, in the western race, yellow feet. As an aquatic bird, it feeds in shallow water and on land, consuming a variety of small creatures. It breeds colonially, often with other species of water birds, making a platform nest of sticks in a tree, bush or reed bed. A clutch of three to five bluish-green eggs is laid and incubated by both parents for about three weeks. The young fledge at about six weeks of age.

Its breeding distribution is in wetlands in warm temperate to tropical parts of Asia, Africa, Australia, and Europe. A successful colonist, its range has gradually expanded north, with stable and self-sustaining populations now present in the United Kingdom.

In warmer locations, most birds are permanent residents; northern populations, including many European birds, migrate to Africa and southern Asia to over-winter there. The birds may also wander north in late summer after the breeding season, and their tendency to disperse may have assisted in the recent expansion of the bird's range. At one time common in Western Europe, it was hunted extensively in the 19th century to provide plumes for the decoration of hats and became locally extinct in northwestern Europe and scarce in the south. Around 1950, conservation laws were introduced in southern Europe to protect the species and their numbers began to increase. By the beginning of the 21st century the bird was breeding again in France, the Netherlands, Ireland and Britain. Its range is continuing to expand westward, and the species has begun to colonise the New World; it was first seen in Barbados in 1954 and first bred there in 1994. The International Union for Conservation of Nature has assessed the bird's global conservation status as being of "least concern".

7-6-2020 GANDIA, VALENCIA - EUROPEAN SERIN (MALE) (Serinus serinus)

https://www.inaturalist.org/taxa/9236-Serinus-serinus

7-6-2020 VILLALONGA RIO SERPIS, VALENCIA - SCARLET DARTER DRAGONFLY (MALE) (Crocothemis erythraea)

https://www.inaturalist.org/taxa/85030-Crocothemis-erythraea

7-6-2020 GANDIA, VALENCIA - ARTICHOKE THISTLE (Cynara cardunculus)

The cardoon (Cynara cardunculus /ˈsɪnərə kɑːrˈdʌnkjʊləs/), also called the artichoke thistle, is a thistle in the family Asteraceae. It is a naturally occurring species that also has many cultivated forms, including the globe artichoke. It is native to the Mediterranean region, where it was domesticated in ancient times and still occurs as a wild plant.

The wild cardoon is a stout herbaceous perennial plant growing 0.8 to 1.5 m (31 to 59 in) tall, with deeply lobed and heavily spined green to grey-green tomentose (hairy or downy) leaves up to 50 cm (20 in) long, with yellow spines up to 3.5 cm long. The flowers are violet-purple, produced in a large, globose, massively spined capitulum up to 6 cm (2 in) in diameter.

It is adapted to dry climates, native across a circum-Mediterranea area from Morocco and Portugal east to Libya and Greece and north to Croatia and Southern France; it may also be native on Cyprus, the Canary Islands and Madeira. In France, the frost-tender cardoon only occurs wild in the Mediterranean south (Gard, Hérault, Aude, Pyrénées-Orientales, Corsica). It has become an invasive weed in the pampas of Argentina, and is also considered a weed in Australia and California.

The "giant thistle of the Pampas" reported by Charles Darwin has been identified as cardoon.

7-6-2020 GANDIA, VALENCIA - SPECKLED WOOD BUTTERFLY (Pararge aegeria)

https://www.inaturalist.org/taxa/52592-Pararge-aegeria

7-6-2020 GANDIA, VALENCIA - EURASIAN BLACKBIRD (MALE) (Turdus merula)

https://www.inaturalist.org/taxa/12716-Turdus-merula

7-6-2020 VILLALONGA RIO SERPIS, VALENCIA - BRIGHT WAVE MOTH (Idaea ochrata)

Idaea ochrata, the bright wave, is a moth of the family Geometridae. It is found in Europe.

The species has a wingspan of 21–24 mm. The adults fly at night from late June to early August in one generation . The species overwinters as a larva.

The larvae feed on the flowers of hawk's beard (Crepis sp.), dandelion (Taraxacum) and coltsfoot (Tussaligo) in captivity. In the wild the larvae feed on Smooth Tare and the flowers of Hare's-foot Clover.

The Bright Wave (Idaea ochrata) is a small, sandy-brown moth with a 21–24mm wingspan, recognized by its pointed forewings and, as shown on Butterfly Conservation, distinct, thin cross-lines. Primarily a coastal species in Southeast England (Kent/Suffolk), it is rare and listed in the Red Data Book, appearing between late June and early August, often flying in the late afternoon and at dusk. 

Key facts about the Bright Wave include:

Appearance: Small with sandy-brown to ochreous coloration. It has a distinctive pointed forewing, often with black dots along the fringe, notes and via Picture Insect.

Flight Season: A single generation flies from late June to early August.

Habitat: Prefers coastal habitats, including vegetated shingle beaches and sandy undercliffs.

Larval Food: Caterpillars feed on various low-growing plants, including Smooth Tare, Hare's-foot Clover, dandelion, and hawk's-beard, according to Butterfly Conservation and UKMoths.

Life Cycle: The species overwinters as a larva.

Behavior: It is easily disturbed from vegetation during the day but also comes to light, sometimes in large numbers.

Status: In the UK, it is considered a resident but also an immigrant. It was previously considered extinct in Suffolk before reoccurring, as described in the Suffolk Moths records. 

The species is found throughout southern Europe, preferring open, dry grasslands, according to Norfolk Moths and Butterfly Conservation. 

6-6-2020 MONTE CORONA, VALENCIA - FUNNEL WEAVER SPIDER (Genus Textrix)

Textrix is a genus of funnel weavers first described by Carl Jakob Sundevall in 1833. They have a mainly European distribution, with one species in Ethiopia. The type species of the genus is Textrix denticulata.

The spiders in the genus Textrix have a strongly recurved posterior row of eyes with the medial eyes larger than the lateral eyes. They have a narrow head which is distinct from the thorax. These spiders may resemble wolf spiders as they are often recorded running about in sunshine, but their long and segmented posterior spinners are very marked and identify them as funnel web weavers.

5-6-2020 MONTE CORONA, VALENCIA - IBERIAN SCARCE SWALLOWTAIL BUTTERFLY (Iphiclides feisthamelii)

The Iberian Scarce Swallowtail (Iphiclides feisthamelii) is a large, distinctive white-and-black butterfly found across the Iberian Peninsula, southern France, and North Africa. Characterized by long tails, wide black stripes, and a "wedge" shape, this species is often considered a separate species or a distinct subspecies of the Scarce Swallowtail (Iphiclides podalirius). 

Key Characteristics and Habits

Appearance: This butterfly has a white to pale yellowish base color with striking, wide black tiger stripes, long tails on the hind wings, and blue "eyes".

Flight: They have a distinctive, almost directionless, floating flight style compared to other swallowtails.

Habitat & Behavior: Often found in dry, bushy, and sunny areas, often near fruit trees (like Prunus and Malus). They are seen feeding on lavender and other nectar plants.

Life Cycle: They are bivoltine, meaning they have two generations, with the first brood often appearing in spring (e.g., May in the Picos de Europa). 

Common in Spain and Portugal, with range extensions into southern France.

It is frequently observed in Mediterranean climates, including Andalusia and the Sierra Nevada. 

While many sources refer to this as Iphiclides feisthamelii, it is sometimes referred to as a subspecies of the Southern Scarce Swallowtail (Iphiclides podalirius) by certain authorities, although I. feisthamelii has darker, broader stripes. 

5-6-2020 MONTE CORONA, VALENCIA - BLUE SPOT HAIRSTREAK BUTTERFLY (Satyrium spini)

2-6-2020 ALBUFERA, VALENCIA - BLACK WINGED STILT (Himantopus himantopus)

The Black-winged Stilt, Himantopus himantopus, is a slender wader known for its strikingly long, pink legs and contrasting black-and-white plumage. This elegant bird is a member of the avocet and stilt family, Recurvirostridae.

Adult Black-winged Stilts measure 33–36 cm in length. They possess a long, thin black bill and display a distinctive black and white coloration. The head and neck are predominantly white, with variable black markings depending on the sex and subspecies. Males typically have a glossy or greenish sheen on their black backs, while females exhibit a more brownish tinge. During flight, their long legs trail behind, and their wingbeats are steady.

These birds favor marshes, shallow lakes, and ponds as their breeding grounds. They are also known to inhabit coastal areas during migration and in the winter months.

The Black-winged Stilt has a wide range, extending across Europe, Asia, and Africa. Some populations migrate to coastal regions in winter, while others in milder climates may remain resident or engage in short-range movements.

Black-winged Stilts are often seen foraging in shallow waters, gracefully picking insects and crustaceans from the surface. They are known to nest in small groups, sometimes alongside avocets, and exhibit a variety of courtship behaviors, including intricate displays and duets.

The flight call of the Black-winged Stilt is a sharp and clear kleek, typically heard during its aerial maneuvers.

Nests are simple bare spots on the ground near water. These birds are communal nesters and may breed in loose colonies. They have been known to breed as far north as Britain, with recent successful breeding events recorded in Southern and Northern England.

The Black-winged Stilt can be confused with other stilt species, such as the Black-necked Stilt (H. mexicanus) in the Americas, the White-backed Stilt (H. melanurus), and the Pied Stilt (H. leucocephalus) in Australasia and New Zealand.

Their diet consists mainly of insects and crustaceans, which they deftly pick from the water's surface or from wet sand.

The IUCN lists the Black-winged Stilt as Least Concern, indicating a stable global population. However, they are protected under the Agreement on the Conservation of African-Eurasian Migratory Waterbirds, highlighting the importance of international cooperation in their conservation.

2-6-2020 ALBUFERA, VALENCIA - GREY HERON (Ardea cinerea)

Large wader (approx 102 cm or 3.5 ft) with an also large wingspan (approx 175 cm or 5.5 ft). Stylized silhouette and long neck. Greyish plumage in general. White head in adults with black forelock and long, black feathers like a plume. Light neck with dark lines. Ashen back and dark spot on the shoulders. Lighter belly. Long, sharp, yellow bill. Yellow legs. Silhouette in flight with neck folded in the shape of an "s" and stretched legs.

Its habitats are principally Wetlands, River and Riverside

It lives in all types of wetlands with salty or fresh water in winter. In the breeding season it needs wetlands with nearby tree vegetation. Also in Reservoirs, lagoons, ditches and irrigation ponds, stream banks, coast line.

This pecies is present in the province all year round, both as a wintering one and in the breeding period. There are also specimens in migratory passage. Gregarious during the reproductive season and lonelier during the rest of the year. Nest in trees or groves of riparian vegetation. One laying of 2 to 5 eggs. 

The Grey Heron feeds on fish, micromammals, small reptiles, including snakes, amphibians and insects. It shows a very calm behaviour when foraging. This bird explores the water while being very still, waiting for a prey to appear. Once sighted, it shoots the bill as if it were a harpoon.

3-6-2020 MONTE CORONA, VALENCIA - COASTAL PEARL MOTH (Mecyna asinalis)

Mecyna asinalis, sometimes known as the madder pearl, is a species of moth of the family Crambidae found in Europe.

The wingspan is 25–29 millimetres (0.98–1.14 in). The forewings are grey; lines darker, first indistinct, sometimes followed by a dark fuscous triangular subdorsal spot, second sometimes blackish -dotted, curved, with a deep abrupt sinuation inwards below middle, often preceded by a brownish or dark fuscous trapezoidal subdorsal spot ; very large orbicular, and reniform discal spot somewhat paler, latter preceded and followed by faint brownish sometimes dark-edged spots. Hind are wings grey ; a darker postmedian line. The larva is yellow-brownish ; dorsal line reddish-brown ; subdorsal broader, brown ; lateral brown ; spots black.

The moth flies from May to October in two generations per year.

It is found in west and southern Europe, including Ireland, Britain, the Iberian Peninsula, France, Germany, Switzerland, Italy, Albania, Croatia, Greece and Sicily, Sardinia, Malta, Madeira, Corsica, the Azores and the Canary Islands.

3-6-2020 MONTE CORONA, VALENCIA - SPECKLED FOOTMAN MOTH (Coscinia cribraria)

Coscinia cribraria, the speckled footman, is a species of moth belonging to the subfamily Arctiinae within the large family Erebidae. This moth has a widespread distribution in the Palearctic.

Coscinia cribraria has a forewing which has a background colour of dirty white marked with black streaks along the wings and crossbands made up of dark dots, both of which vary in extent. The subspecies arenaria has an almost pure white forewing. The speckled footman has a wingspan of between 30 and 35 mm (1.2 and 1.4 in).

Coscinia cribraria has a wide Palearctic distribution being found from Northwestern Africa Iberia and southern Great Britain east to China and Mongolia. In Europe, north of the Alps, the speckled footman is typically found on sandy heaths and open sandy pine forests. To the south of the Alps, it inhabits on dry mountain meadows with stony or rocky areas and around the Mediterranean this species can be found in habitats like maquis and in open forests.

2-6-2020 ALBUFERA, VALENCIA - GLOSSY IBIS (Plegadis falcinellus)

https://www.inaturalist.org/taxa/3756-Plegadis-falcinellus

2-6-2020 ALBUFERA, VALENCIA - GREY HERON (Ardea cinerea)

https://www.inaturalist.org/taxa/4954-Ardea-cinerea

2-6-2020 ALBUFERA, VALENCIA - LITTLE EGRET (Egretta garzetta)

https://www.inaturalist.org/taxa/4943-Egretta-garzetta

2-6-2020 ALBUFERA, VALENCIA - BLACK WINGED STILT (Himantopus himantopus)

The Black-winged Stilt, Himantopus himantopus, is a slender wader known for its strikingly long, pink legs and contrasting black-and-white plumage. This elegant bird is a member of the avocet and stilt family, Recurvirostridae.

Adult Black-winged Stilts measure 33–36 cm in length. They possess a long, thin black bill and display a distinctive black and white coloration. The head and neck are predominantly white, with variable black markings depending on the sex and subspecies. Males typically have a glossy or greenish sheen on their black backs, while females exhibit a more brownish tinge. During flight, their long legs trail behind, and their wingbeats are steady.

These birds favor marshes, shallow lakes, and ponds as their breeding grounds. They are also known to inhabit coastal areas during migration and in the winter months.

The Black-winged Stilt has a wide range, extending across Europe, Asia, and Africa. Some populations migrate to coastal regions in winter, while others in milder climates may remain resident or engage in short-range movements.

Black-winged Stilts are often seen foraging in shallow waters, gracefully picking insects and crustaceans from the surface. They are known to nest in small groups, sometimes alongside avocets, and exhibit a variety of courtship behaviors, including intricate displays and duets.

The flight call of the Black-winged Stilt is a sharp and clear kleek, typically heard during its aerial maneuvers.

Nests are simple bare spots on the ground near water. These birds are communal nesters and may breed in loose colonies. They have been known to breed as far north as Britain, with recent successful breeding events recorded in Southern and Northern England.

The Black-winged Stilt can be confused with other stilt species, such as the Black-necked Stilt (H. mexicanus) in the Americas, the White-backed Stilt (H. melanurus), and the Pied Stilt (H. leucocephalus) in Australasia and New Zealand.

Their diet consists mainly of insects and crustaceans, which they deftly pick from the water's surface or from wet sand.

The IUCN lists the Black-winged Stilt as Least Concern, indicating a stable global population. However, they are protected under the Agreement on the Conservation of African-Eurasian Migratory Waterbirds, highlighting the importance of international cooperation in their conservation.

2-6-2020 ULLAL DE BOLDOVI, VALENCIA - SMALL WHITE BUTTERFLY (Pieris rapae)

Pieris rapae is a small-to-medium-sized butterfly species of the whites-and-yellows family Pieridae. It is known in Europe as the small white, in North America and the United Kingdom as the cabbage white or cabbage butterfly, on several continents as the small cabbage white, and in New Zealand as the white butterfly. The butterfly is recognizable by its white color with small black dots on its wings, and it can be distinguished from P. brassicae by the latter's larger size and black band at the tip of the forewings.

The caterpillar of this species, often referred to as the "imported cabbageworm", is a pest to crucifer crops such as cabbage, kale, bok choy and broccoli. Pieris rapae is widespread in Europe and Asia; it is believed to have originated in the Eastern Mediterranean region of Europe and to have spread across Eurasia thanks to the diversification of brassicaceous crops and the development of human trade routes. Over the past two centuries, it spread to North Africa (about 1800), North America (1860s), Hawaii (1897), New Zealand (1930), and Australia (1937), as a result of accidental introductions.

2-6-2020 MONTE CORONA, VALENCIA - RED PALM WEEVIL (Rhynchophorus ferrugineus)

The palm weevil Rhynchophorus ferrugineus is one of two species of snout beetle known as the red palm weevil, Asian palm weevil or sago palm weevil. The adult beetles are relatively large, ranging between 2 and 4 centimetres (1 and 1+1⁄2 inches) long, and are usually a rusty red colour—but many colour variants exist and have often been classified as different species (e.g., R. vulneratus). Weevil larvae can excavate holes in the trunks of palm trees up to 1 metre (3.3 ft) long, thereby weakening and eventually killing the host plant. As a result, the weevil is considered a major pest in palm plantations, including the coconut palm, date palm and oil palm.

Originally from tropical Asia, the red palm weevil has spread to Africa and Europe, reaching the Mediterranean in the 1980s. It was first recorded in Spain in 1994, and in France in 2006. Additional infestations have been located in Malta, Italy (Tuscany, Sicily, Campania, Sardinia, Lazio, Marche, Puglia and Liguria), Croatia and Montenegro. It is also well established throughout most of Portugal, especially in the South. It also has established in Morocco, Tunisia, and other North African countries. The weevil was first reported in the Americas on Curaçao in January 2009 and sighted the same year in Aruba. It was reported in the United States at Laguna Beach, California late in 2010 but this was a misidentification of the closely related species, R. vulneratus, and it did not become established.It was reported in Uruguay in March 2022, and has since spread to many parts of the country.

This species of red palm weevil is reported to attack 19 palm species and is the worst such pest in the world.  Although the weevil was first reported on coconut in Southeast Asia, it has gained a foothold on date palm over the last two decades in several Middle Eastern countries, and then expanded its range to Africa and Europe. This expansion has been due to the movement of infested planting material from contaminated to uninfected areas. In the Mediterranean region, the red palm weevil also severely damages Phoenix canariensis. Currently, the pest is reported in almost 15% of the global coconut-growing countries and in nearly 50% of the date palm-growing countries.

This weevil usually infests palms younger than twenty years. While the adult causes some damage through feeding, it is the burrowing of the larva into the heart of the palm that can cause the greatest mortality of trees. The adult female lays approximately two hundred eggs on new growth in the crown of the palm, at the base of young leaves, or in open lesions on the plant. The egg hatches into a white, legless larva. The larva will feed on the soft fibres and terminal buds, tunneling through the internal tissue of the tree for about a month. The larvae can occasionally grow to a length of 6 to 7 centimetres (2+1⁄2 to 3 in). At pupation, the larva will leave the tree and form a cocoon built of dry palm fibers in leaf litter at the base of the tree. The total life cycle takes about 3–4 months.

After fertilization, the adult female can lay between 300 and 500 eggs. They lay in holes they produced while searching for food, or take advantage of the cracks or wounds in a recently cut palm. At oviposition, females bend upward and the tarsi are anchored to the tissue with the spines of the third pair of legs to push the ovipositor into the tough palm tissue. After laying, the female protects and secures the eggs with a secretion that rapidly hardens around the eggs. On average, females produce 210 eggs per clutch, most of which hatch over a period of 3 days. The eggs are white, cylindrical, glossy, oval shaped, and measure 1 to 2.5 millimetres (3⁄64 to 3⁄32 in).  developing insect with oxygen.

Larvae of Rhynchophorus ferrugineus are considered a delicacy in Southeast Asian cuisine. In some regions, however, larvae farming is strictly prohibited to prevent the potential devastation of plantation crops.

The main control method is through the application of a systemic insecticide. Insecticide is usually applied through a funnel about 5 centimetres (2 in) above the infested area of the trunk. The red palm weevil can be monitored using pheromone lures and alternative forms of control use field sanitation and mass trapping with traps baited with pheromone and plant derived semiochemicals. New alternative technologies using semiochemicals and bioinsecticides are being developed to attract the weevils to a point source and kill them. Another management technique is to drench the base of palm fronds with the entomopathogenic fungus Metarhizium robertsii (syn. M. anisopliae, Entomophthora anisopliae), or Beauveria bassiana.

Palms' natural defense against this weevil is understudied.