CONOPS. 



343 



Subfamily CONOPINiE. 



The two Oriental genera may be distinguished as follows :— 



Ffinora, especially liiud pair, suddenly incrassated 

 towards base; tibi;\; more irregularly tliickened; 

 anterior cross-vein situated at about two-thirds 



the len<:rth of the discal cell; basal segments of [och., p. 600. 



abdomen considerably narrowed • • . . PhysoCF.phat.a, 



Femora of uniibrm tlnclmess throughout; tibiai 

 hardly irregularly thickened; anterior cross- 

 vein at about the middle of the discal cell; 

 basal segment of abdomen only slightly, or not 

 at all, narrowed Coxops L. 



Genus CONOPS, L. 



Conops, Linnoeus, Fauna Sueciaj, p. 1907 (1761). 

 Conopceus, Rondaui, Mag. de Zool. pi. 15:3, iig/2 (1845). 

 Sphi.vusoma, Roudani, Dipt. Ital. Prod, ii, p. 223 (1857). 



Genotype, Conops ^fl a vI pes, L. ; by designation of Curtis. 



Head large, broader than thorax, bare, loosely attached by a 

 narrow neck; epistonie perpendicular or slightly receding, 

 descending at sides considerably below level of eyes ; eyes 

 bare, wide apart in both sexes, vertex with a transverse vesiculose 

 tubercle; ocelli absent; proboscis elongate, cylindrical, much 

 longer than head, generally horizontal, bent at base; labella small 

 and narrow. Thorax subquadrate, bare, often with well-defined 

 yellow spots, especially on the humeri, on the posterior corners of 

 the dorsum and near" the bases of the wings ; scutellum semi- 

 circular. Abdomen elongate, cylindrical, G-seguiented, generally 

 slightly curved downwards; base usually slightly narrowed, tip 

 more or less clubbed. Genitalia in d small, thread-like, scarcely 

 prominent. In the $ the genitalia comprise a large, obtusely 

 conical piece with apical appendages, and are furnished with a 

 large, curved, shield-like organ, which is produced from the 5th 

 segment, but which (when the 4th segment is very short, as is often 

 the case) appears to belong to the 4th segment. This shield-like 

 organ is often present in the d si'^o, but is always comparatively 

 small in tliat sex. Lcf/s comparatively strong, moderately long, 

 practically bare, having" at most a little soft i)ubescence in certain 

 species ; hind femora generally slightly longer and thicker than 

 the others. 117 h^4- with the venation typical of the family; 1st 

 posterior cell closed a little before the margin ; anterior cross-vein 

 at about middle of discal cell and situated almost opposite, or just 

 before, the tip of the auxiliary vein ; 2iid basal cell less than half 

 as long as the 1st; anal cell long and narrow, (dosed distuictly 

 before margin of wing. 



llanqr. World-wide. 



Life-histonj: see under heading oF the family. 



