Desmometopa varipalpis

Malloch, 1927

freeloader fly

Desmometopa varipalpis is a of freeloader fly in the Milichiidae, described by Malloch in 1927. It is found in Europe and the Galápagos Islands. Like other members of its , it has been observed engaging in kleptoparasitism, feeding on prey captured by spiders and praying mantids.

Pronunciation

How to pronounce Desmometopa varipalpis: //ˌdɛzmoʊmɪˈtoʊpə ˌvɛrəˈpælpɪs//

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Distribution

Europe (Switzerland, Germany, Denmark, Spain) and the Galápagos Islands.

Diet

Kleptoparasitic; has been observed feeding on prey captured by spiders (Argiope trifasciata, crab spiders) and praying mantids (Stagmomantis limbata). The flies arrive shortly after prey capture and feed on the wrapped or partially consumed prey.

Behavior

Engages in kleptoparasitism (food theft) by arriving at spider webs or feeding sites within seconds of prey capture. Multiple individuals may feed simultaneously on the same prey item. generally ignore these flies, possibly due to their small size making them unprofitable prey.

Ecological Role

Kleptoparasite that exploits the hunting efforts of predatory arthropods; may facilitate nutrient recycling by consuming prey remains.