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Showing posts with label FLESH FLY (Family Sarcophagidae). Show all posts
Showing posts with label FLESH FLY (Family Sarcophagidae). Show all posts

Sunday, 13 October 2019

12-10-2019 MONTE CORONA, VALENCIA - FLESH FLY (Family Sarcophagidae)


Sarcophaga is a genus of true flies and the type genus of the flesh-fly family (Sarcophagidae). The members of this cosmopolitan genus are frequently known as common flesh flies. There are more than 1000 species in Sarcophaga.

This genus occurs essentially worldwide. These flies are generally well-sized and of a greyish color; like many of their relatives, the typical patterns are lengthwise darker stripes on the thorax and dark and light square dots on the abdomen. Many have conspicuous red compound eyes. These are set further apart in females than in males; the females are also larger on average. As typical for this family, it is almost impossible to tell the species apart from their outward appearance, and many can only be reliably identified by microscopic examination of the males' genitalia.

As the common name implies, their larvae typically feed on decaying meat. Some, however, instead eat the bacteria and other small organisms living on carrion. Many species have adapted to humans, and while they are usually nuisance pests, some are medically significant vectors of pathogens and bacteria. Sometimes, the larvae cause myiasis. Others are parasitoids of pest caterpillars and beneficial in forestry and orchards.

Tuesday, 19 June 2018

19-6-2018 MONTE CORONA, VALENCIA - FLESH FLY (Family Sarcophagidae)


Sarcophagidae (from Ancient Greek σάρξ sárx 'flesh' and φαγεῖν phageîn 'to eat') are a family of flies commonly known as flesh flies. They differ from most flies in that they are ovoviviparous, opportunistically depositing hatched or hatching maggots instead of eggs on carrion, dung, decaying material, or open wounds of mammals, hence their common name. Some flesh fly larvae are internal parasites of other insects such as Orthoptera, and some, in particular the Miltogramminae, are kleptoparasites of solitary Hymenoptera. The adults mostly feed on fluids from animal bodies, nectar, sweet foods, fluids from animal waste and other organic substances. Juveniles need protein to develop and may be laid on carrion, dung or sweet plant foods (including fruit, nuts, and artificial foodstuffs).


Members of the subfamily Sarcophaginae are small to large flies 0.16–0.9 inches (4.1–22.9 mm) with black and gray longitudinal stripes on the thorax and checkering on the abdomen. Other key features include red eyes and a bristled abdomen. Abdominal sternites II and III are free and cover the margins of tergites. The posthumeral bristles are one or two in number, with the outermost pair missing.

Flesh flies can carry leprosy bacilli and can transmit intestinal pseudomyiasis to people who eat their larvae. Flesh flies, particularly Wohlfahrtia magnifica, can also cause myiasis in animals, mostly to sheep, and can give them blood poisoning, or asymptomatic leprosy infections.

Sunday, 1 October 2017

1-10-2017 MONTE CORONA, ADOR - FLESH FLY (Family Sarcophagidae)


Sarcophagidae (from Ancient Greek σάρξ sárx 'flesh' and φαγεῖν phageîn 'to eat') are a family of flies commonly known as flesh flies. They differ from most flies in that they are ovoviviparous, opportunistically depositing hatched or hatching maggots instead of eggs on carrion, dung, decaying material, or open wounds of mammals, hence their common name. Some flesh fly larvae are internal parasites of other insects such as Orthoptera, and some, in particular the Miltogramminae, are kleptoparasites of solitary Hymenoptera. The adults mostly feed on fluids from animal bodies, nectar, sweet foods, fluids from animal waste and other organic substances. Juveniles need protein to develop and may be laid on carrion, dung or sweet plant foods (including fruit, nuts, and artificial foodstuffs).Members of the subfamily Sarcophaginae are small to large flies 0.16–0.9 inches (4.1–22.9 mm) with black and gray longitudinal stripes on the thorax and checkering on the abdomen. Other key features include red eyes and a bristled abdomen. Abdominal sternites II and III are free and cover the margins of tergites. The posthumeral bristles are one or two in number, with the outermost pair missing.


The presutural bristle is located lower than the notopleural bristle, and closer to the notopleural bristle than to the outermost posthumeral bristle. The presutural bristle is located higher than or level with the posthumeral bristle. The hindmost posthumeral bristle is located even with or toward the midline from the presutural bristle. Four notopleural bristles are present and arranged in the order - short, long, short, long - from front to rear.

Vein M1 +2 (anterior transverse vein, medial vein 1+2 ) is always present, and the cubitulus is strongly bent at right angles or acute; vein Rs is dibranched.

The eyes are smooth and very rarely hairy.

Flesh flies can carry leprosy bacilli and can transmit intestinal pseudomyiasis to people who eat their larvae. Flesh flies, particularly Wohlfahrtia magnifica, can also cause myiasis in animals, mostly to sheep, and can give them blood poisoning, or asymptomatic leprosy infections.