Acrocera orbiculus, also known as the top-horned hunchback, is a species of fly belonging to the family Acroceridae. The species has a holarctic distribution, ranging from North America to the Palaearctic.
Etymology The specific name is the Latin diminutive noun , meaning 'a small disk'. As a noun in apposition, the suffix does not alter to reflect the gender of the genus.
Description "Antennae placed at the extreme top of the head, ending in a long thin arista. Venation very much reduced. Proboscis absent, or very short and stumpy" Verrall, G. H., 1909 Stratiomyidae and succeeding families of the Diptera Brachycera of Great Britain British flies Volume 5 London : Gurney and Jackson, 1909.BHL Full text with illustrations
Biology The larvae are endoparasites of spiders in the families Amaurobiidae, Clubionidae and Lycosidae.
References
External links GBIF External images