BIRDWALKERMONDAY

Sunday, 10 June 2018

10-6-2018 MONTE CORONA, VALENCIA - MAMMOTH WASP (Megascolia maculata)

10-6-2018 MONTE CORONA, VALENCIA - CUTWORM MOTH (Family Noctuidae)

10-6-2018 MONTE CORONA, VALENCIA - STONE CENTIPEDE (Order Lithobiomorpha)

Saturday, 9 June 2018

9-6-2015 MONTE CORONA, VALENCIA - WAVE MOTH (Idaea minuscularia)

Idaea, sometimes called Hyriogona, is a large genus of geometer moths. They are found nearly worldwide, with many native to the Mediterranean, the African savannas, and the deserts of western Asia. As of 2013, there were about 680 species in the genus.

9-6-2015 MONTE CORONA, VALENCIA - MEDITERRANEAN SPOTTED CHAFER (Oxythyrea funesta)

Common name “White spotted rose beetle”.

This beetle is present in most of Europe, in the eastern Palearctic realm, and in the Near East.

Larvae are up to 30 mm long, they feed on plant roots and can remain until next spring in the soil.

The adults appear early in the spring, they grow up to 8–12 millimetres (0.31–0.47 in) and can mostly be encountered from May through July. They are considered an insect pest that do not just feed on pollen, but rode the floral organs, especially damaging light in color buds and flowers.

Their colour is black, more or less bronzed. Most of the specimens show six white spots in two longitudinal rows on the pronotum and many others on the elytra. They are completely covered with white pubescence (easily visible in profile). Older specimens usually have no hairs, as they are rubbed off with time.

9-6-2015 MONTE CORONA, VALENCIA - HOVER FLY (Subfamily Eristalinae)

Eristalinae (or Milesiinae) are one of the four subfamilies of the fly family Syrphidae, or hoverflies. A well-known species included in this subfamily is the dronefly, Eristalis tenax.

Species in this subfamily are often misclassified as bees instead of flies due to their exceptional Mimicry, especially to resemble Honeybees (family Apidae). The best strategy for proper identification is to look at their eyes and wings and compare with fly morphology, to determine membership of family Syrphidae and/or of order Hymenoptera.

This subfamily has the widest range of larvae habitat of any in Syrphidae. Larvae live in sap trails, under bark, in rot-holes in trees, in decaying organic material such as dung and compost, and in shallow aquatic environments. Most larvae feed on decaying organic debris. They are filter feeders in many kinds of aquatic media. They purify water by filtering microorganisms and other products. Some feed on bulbs and are considered garden pests.

Certain species in Eristalinae live as scavengers and take shelter in the remains of other insects, while others, like Volucella, are Parasitoids and live in wasp or bee nests. Some other species are found to be leaf miners and tunnel inside the stems and roots of plants. Additionally, males of this subfamily typically employ dual mate-seeking strategies to find females, most commonly patrolling blossoms and waiting near potential sites where females could lay eggs.

9-6-2015 MONTE CORONA, VALENCIA - BUFF TAILED BUMBLE BEE (Bombus terrestris)

Bombus terrestris, the buff-tailed bumblebee or large earth bumblebee, is one of the most numerous bumblebee species in Europe. It is one of the main species used in greenhouse pollination, and so can be found in many countries and areas where it is not native, such as Tasmania. Moreover, it is a eusocial insect with an overlap of generations, a division of labour, and cooperative brood care. The queen is monogamous which means she mates with only one male. B. terrestris workers learn flower colours and forage efficiently.

B. terrestris are pollen-storing bees that generally feed and forage on nectar and pollen. The queen is between 20 and 22 mm long, males range from 14 to 16 mm, and workers from 11 to 17 mm. Workers have white-ended abdomens, and look just like workers of the white-tailed bumblebee, B. lucorum, a close relative, apart from the yellowish bands of B. terrestris being darker in direct comparison. The queens of B. terrestris have the namesake buff-white abdomen tip ("tail"); this area is white as in the workers in B. lucorum. B. terrestris is unique compared to other bees in that their caste of workers exhibit a wide variation in worker size, with thorax sizes ranging from 2.3 to 6.9 mm in length and masses ranging from 68 to 754 mg.

B. terrestris is most commonly found throughout Europe and generally occupies temperate climates. Because it can survive in a wide variety of habitats, there are populations in the Near East, the Mediterranean Islands, and Northern Africa as well. Additionally, it has escaped captivity after being introduced as a greenhouse pollinator in countries where it is not native, so this bee is now considered an invasive species in many of these places, including Japan, Chile, Argentina, and Tasmania. Nests are usually found underground, such as in abandoned rodent dens. Colonies form comb-like nest structures with egg cells each containing several eggs. The queen will lay egg cells on top of one another. Colonies produce between 300 and 400 bees on average, with a large variation in the number of workers.

Like in most social bees, there are three main social caste divisions in B. terrestris. This ensures a division of labor and efficient colony functioning. Queens become the main female individual to reproduce in a future colony. There is only one per colony. Her sole responsibility is to lay eggs after she founds a nest. This fate is determined for larvae that receive more food, have longer instar stages, and higher levels of juvenile hormone biosynthesis. Workers, an entirely female caste, mainly forage for food, defend the colony, and tend to the growing larvae. They are usually sterile for most of the colony cycle and do not raise their own young. Unlike queens and workers, which develop from fertilized diploid eggs, drones, or male bees, are born from unfertilized, haploid eggs. Drones leave the colony shortly after reaching adulthood to find a mate outside the nest. Mating is their sole role in the colony.

9-6-2015 MONTE CORONA, VALENCIA - HALF EDGED WALL JUMPING SPIDER (Menemerus semilimbatus)

Menemerus semilimbatus is a spider in the family Salticidae.

Menemerus semilimbatus are about 6.5–8.4 millimetres (0.26–0.33 in) long, the male being slightly smaller than the female. These fairly big jumping spiders are dorso-ventrally flattened and are covered with short dense, grayish-white hairs, with hairy whitish palps and a white band on the side margins of the carapace, showing also a small white, triangular marking in the middle. The eyes are large and forward-facing. The legs are light brown with darker rings and patches, while the abdomen is dorsally yellowish or grayish, with a characteristic pattern of several bright V-shaped markings. The females show a notch at the posterior edge of the epigyne and two oval depressions in the anterior half.

Menemerus semilimbatus is a Mediterranean species widely distributed in Europe, southern Asia and in Africa. In the Americas, it has been reported for Argentina, Chile, Ecuador and USA.

These spiders are synanthropic living in gardens and inside and on the outside of houses. It is usually found on the walls of buildings where it stalks its prey.