Amobia signata - Cyprus

Family  Sarcophagidae

The flesh fly Amobia signata is what is known as a 'cleptoparasite'. It lays its eggs in the nests of solitary bees and wasps. When the larvae hatch, they eat the food provided by the adult bee or wasp for its own larvae.

Sarcophaga is a genus of true flies, the type of the flesh-fly family (Sarcophagidae).

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 redcompound 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, rather 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.From Wikipedia, the free encyclopedia

Photos Latsia,  by George Konstantinou

Tachinid fly (Drino (Zygobothria) atropivora) (Robineau-Desvoidy, 1830) - Cyprus

 
larvae of  Death's-head Hawk moth - Acherontia atropos
 fall victim to Drino (Zygobothria) atropivora

Tachinid fly Drino (Zygobothria) atropivora parasitise the larvae to parasitise the eggs.

The Tachinidae are a large and variable family of true flies within the insect order Diptera, with more than 8,200 known species and many more to be discovered. Over 1,300 species have been described in North America alone. Insects in this family commonly are called tachinid flies or simply tachinids. As far as is known, they all are protelean parasitoids, or occasionally parasites, of arthropods, usually other insects. The family is known from many habitats in all zoogeographical regions and is especially diverse in South America

Life cycle

Reproductive strategies vary greatly between Tachinid species, largely, but not always clearly, according to their respective life cycles. This means that they tend to be generalists rather than specialists. Comparatively few are restricted to a single host species, so there is little tendency towards the close co-evolution one finds in the adaptations of many specialist species to their hosts, such as are typical of protelean parasitoids among the Hymenoptera.

Larvae (maggots) of most members of this family are parasitoids (developing inside a living host, ultimately killing it). In contrast a few are parasitic (not generally killing the host). Tachinid larvae feed on the host tissues, either after having been injected into the host by the parent, or penetrating the host from outside. Various species have different modes of oviposition and of host invasion. Typically, Tachinid larvae are endoparasites (internal parasites) of caterpillars of butterflies and moths, or the eruciform larvae of sawflies. For example, they have been found to lay eggs in African sugarcane borer larva, a species of moth common in sub-Saharan Africa, as well as the more northerly Arctic woolly bear moth. However, some species attack adult beetles and some attack beetle larvae. Others attack various types of true bugs, and others attack grasshoppers; a few even attack centipedes. Also parasitised are bees, wasps and sawflies

                             Photos Nicosia, Potamia 13/9/2014 by George Konstantinou