July 1S90.J 



PSYCHE. 



375 



fuscous. The tergum of the last abdom- 

 inal segment is also more blackish than 

 metallic green. These differences are 

 probably to be attributed to local varia- 

 tion. I subjoin a description of the 

 male, which seems to have been un- 

 knovv^n to Loew and wliich differs from 

 the female in much the same manner as 

 the male of the European Chrysotimus 

 molliculus, Fallen, differs from its fe- 

 male. 



Length : i. 5-1. 75 mm. ; length of wing 2.5 

 mm. 



Bright golden green. Palpi blackish. An- 

 tennae with their two basal joints honey 

 yellow; third joint fuscous, covered with dis- 

 tinct pale hairs. Cilia of the inferior orbit 

 white; hairs and setae covering all other 

 portions of the body honey yellow. The 

 vivid metallic gi'een of the thoracic dorsum 

 and pleurae dimmed somewhat by a layer of 

 whitish dust. Abdomen bright metallic 

 green (venter yellowish .f") of a shade differ- 

 ing from that of the thorax in being some- 

 what less golden and less subdued ; hypopy- 

 gium large and conspicuous; its outer por- 

 tions brown, its inner appendages yellow. 

 Legs honey yellow, the last tarsal joint on 

 all the feet fuscous or black. Halteres yel- 

 low. Wings grayish hyaline, suffused with 

 yellow, especially at their bases; veins honey 

 yellow. 



The six males before me were taken 

 in company with the females of Loew's 

 C. ptisio ; hence I believe there can be 

 no doubt about their identity, especially 

 since the relation that the sexes bear to 

 each other is the same as that obsei^ved 

 in the case of C. fnollicnlus. My spec- 

 imens have collapsed in drying so that 

 I am unable to decide whether the ven- 

 ter is yellow, as in the European spec- 

 ies. 



Aphantotimus, n. gen. 



$. $. Minute metallic green species, with 

 rather thin integument, collapsing when 

 dry; setae covering the body yellow; sexes 

 alike in coloring. Palpi of moderate size. 

 Antennae alike in both sexes; first joint 

 short, smooth : second short and broader, 

 provided with the usual haiis; third joint 

 small, narrower than the second, spheroidal, 

 with rather long, apically inserted and mi- 

 croscopically pubescent arista. Face rather 

 broad in both sexes, narrowed below, not 

 reaching to the lower corners of the eyes. 

 Head situated rather deep on the thorax to 

 which it seems to be closely applied. Thorax 

 resembling in its shape the thorax of Chryso- 

 tiinus; in the prescutellar region there is an ex- 

 tensive though shallow indentation, the exact 

 shape of which my dried and collapsed speci- 

 mens do not enable me to determine. Abdo- 

 men laterally compressed, in the male of six 

 segments, tapering rapidly ; hypopjgium very 

 large, pedunculate, distinctly flexed under the 

 venter, capsule hood-shaped, with exserted 

 appendages; a pair of these, apparently 

 homologous with the lamellae of the hypo- 

 pygium of DoUchopits and Gytiifiopiertins., 

 are disk-shaped and fringed with cilia; ovi- 

 positor large, usually exserted, resembling 

 that of C/trysofimus. Legs rather smooth, 

 with short and appressed spines; tibial spurs 

 feebly developed ; in the spinulation of the 

 legs little or no sexual differences. Wings 

 thin, hyaline, rather large; costa rather 

 prominently arcuate; anal angle not very 

 prominently projecting. Neuration resem- 

 bling that of Chrysotimus; posterior cross 

 vein more than twice its length distant from 

 the border of the wing; fourth longitudinal 

 vein gently bent beyond the posterior cross 

 vein, and ending at or a little in front of the 

 tip of the wing. With this vein the third 

 longitudinal vein runs parallel and is in one 

 species nearer to it than to the second longi- 

 tudinal vein; second and third longitudinal 

 veins presenting the same gentle curvature 

 as the fourth. 



