| Lesser dung flies and allies | |
|---|---|
 | |
| Limosina silvatica | |
Scientific classification | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Class: | Insecta |
| Order: | Diptera |
| Section: | Schizophora |
| Subsection: | Acalyptratae |
| Superfamily: | Sphaeroceroidea |
| Families | |
| |
Sphaeroceroidea is asuperfamily offlies. It includes the cosmopolitan families ofSphaeroceridae (small dung flies),Heleomyzidae, andChyromyidae, as well as a few smaller groups.[1] It has about 2,600 species.[2]
Sphaeroceroids tend to be small flies a few millimetres in length.[3][4][5] Each of the families has its own distinguishing traits. For example, Sphaeroceridae have black wings with an interrupted costa, and the first tarsomere of the hind leg is short and thick.[5] Nannodastiidae are even smaller than usual for sphaeroceroids, with adults being 0.70-1.25 mm long, and their legs lack longsetae.[6]
Larvae generally live and feed on various kinds of decaying organic matter, includingmanure,seaweed,fungi, rottingwood,compost andcarrion.[3][4][5]
Nannodastiidae have a more restricted lifestyle. Adults have usually been found in tropical and subtropicalbeaches, often in caves or under cliff overhangs. The larvae are unknown, but they may be in the droppings of birds and mammals which are abundant in such habitats.[6]
The taxonomic composition of Sphaeroceroidea has been disputed. In 2007, there was a proposal to combine the families Heleomyzidae and Sphaeroceridae into one family, Heteromyzidae.[7] Other, more recent studies have kept these two families separate.[1][2]
A 2021 study confirmed that the superfamily ismonophyletic. Additionally, it found that Sphaeroceroidea is thesister group to all otherSchizophora.[2]
Data related toSphaeroceroidea at Wikispecies