Larviposition
Guides
Amobia
Amobia is a genus of satellite flies in the family Sarcophagidae, subfamily Miltogramminae. These dipterans are obligate kleptoparasites of solitary wasps and bees, with females depositing larvae directly into host nests rather than laying eggs. The genus occurs across multiple continents including Australia, Asia, Europe, and the Americas, with species demonstrating specificity toward particular host taxa such as eumenid wasps (Anterhynchium, Orancistrocerus) and various solitary bees and wasps.
Dufouriini
Dufouriini is a tribe of tachinid flies comprising approximately 51 species across 13 genera, with worldwide distribution. Members are small, dark-colored parasitoids specializing in adult beetles (Coleoptera), particularly Chrysomelidae. Females possess highly modified terminalia adapted for introducing larvae directly into host beetles. The tribe's systematic position has been historically contentious, having been placed in Phasiinae, Voriinae, and as a subfamily before current placement in Dexiinae; recent phylogenetic analyses support its monophyly and distinct tribal status.
Metopia
satellite flies
Metopia is a genus of kleptoparasitic flies in the family Sarcophagidae, subfamily Miltogramminae, commonly known as 'satellite flies.' The genus contains at least 50 described species. Adult females are known to follow solitary wasps back to their nest burrows, where they deposit live larvae at the entrance. These larvae then enter the burrow and parasitize the wasp larvae or their provisioned prey. This behavior has been documented with hosts including beewolves (Philanthus), thread-waisted wasps (Ammophila), and ant-queen kidnappers (Aphilanthops).
Metopia argyrocephala
satellite fly
Metopia argyrocephala is a kleptoparasitic satellite fly in the family Sarcophagidae. Unlike most kleptoparasitic flies that specialize on either bees or wasps, this species has been documented developing in nests of both hymenopteran groups. Adult females follow host wasps or bees to their nests and deposit larvae at the entrance, which then crawl inside to parasitize the host's brood. The species is native to Europe and has been recorded across northern Europe including Belgium, Denmark, Norway, and Sweden.
Trichobius
bat flies
Trichobius is a genus of bat flies (Diptera: Streblidae) containing more than 60 described species. These obligate ectoparasites are exclusively associated with bats, exhibiting varying degrees of host specificity. Species within the genus display diverse morphological and ecological traits, with some showing strong preferences for particular host species, roost types, or host sexes.