''Chorisops tibialis'', the dull four-spined legionnaire, is a

Palearctic The Palearctic or Palaearctic is the largest of the eight biogeographic realms of the Earth. It stretches across all of Eurasia north of the foothills of the Himalayas, and North Africa. The realm consists of several bioregions: the Euro-Sibe ...

species of

soldier fly The soldier flies (Stratiomyidae, sometimes misspelled as Stratiomyiidae, from Greek - soldier; - fly) are a family of flies (historically placed in the now-obsolete group Orthorrhapha). The family contains over 2,700 species in over 380 extan ...

. This species of

is found in

Europe Europe is a large peninsula conventionally considered a continent in its own right because of its great physical size and the weight of its history and traditions. Europe is also considered a Continent#Subcontinents, subcontinent of Eurasia ...

and North Africa and Myanmar A small (Size 3 to 4 mm.) slender fly. The male has a metallic green thorax and scutellum (both are greenish black in females). The humeri may be yellowish. The scutellum bears four yellow spines. The abdomen in both males and females is yellow (discally) and black at the sides and posteriorly. The male has black and tan banded legs. Females have yellow legs with dark tarsi. The clear wings have dark stigma. The habitat is moist or shaded locations with trees. Males sometimes in rapidly moving swarms. Adults are found from June to September. The

saproxylic Xylophagy is a term used in ecology to describe the habits of an herbivorous animal whose diet consists primarily (often solely) of wood. The word derives from Greek ''ξυλοφάγος'' (''xulophagos'') "eating wood", from ''ξύλον'' (') ...

larvae found in decaying wood debris and rot holes of trees.

References

Stratiomyidae Diptera of Europe Insects described in 1820 {{Stratiomyidae-stub