CYDNIDAE OF THE WESTERN HEMISPHERE — FROESCHNER 417 



Mesoplouron: Flattened; evaporatorium extended uninterrupted 

 into posterolateral angle; posterior margin somewhat crenulate; 

 mesosternum low, transversely convex, haired, partially carinate on 

 midline. 



Metapleuron: Nearly flat; osteolar peritreme (fig. 95) extending 

 nearly half way across segment, terminating apically in a free-edged, 

 truncated auricle with osteole opening at its base; evaporatorium 

 occupying mesal two-thirds of segment, lateral margin oblique. 



Legs: Moderately long, stout; anterior tibia (fig. 119) strongly 

 compressed, 8 to 10 stout spines dorsally, not prolonged beyond 

 tarsal insertion; middle and posterior tibiae subterete, latter (fig. 147) 

 straight or slightly curved, spines equally developed dorsally and 

 ventrally; posterior femur with row of small tubercles on postero- 

 ventral margin. 



Sternites: Punctured laterally, polished medially; with or without 

 lateral, submarginal setigerous tubercles. 



Type of genus. — Aefhus nigerrimus Dallas (1851), here designated. 



Distribution. — The three species of this genus occur from Panama 

 south to Paraguay and northern Argentina. 



Key to the known species of Onalips 



1. Scutellum and pronotal transverse impression with widely separated, coarse 



sunken punctures (fig. 7) nigerrimus (Dallas) (p. 420) 



Scutellar and pronotal discs without coarse punctures 2 



2. Sixth sternite with lateral coarse punctures restricted to lateral, submarginal 



impressed part of abdomen (fig. 181); male ^\ith apical rim of genital 



capsule entire (fig. 181) completus, new species (p. 418) 



Sixth sternite with lateral coarse punctures extending mesad and present on 

 lateral third or more of segment (fig. 180); male with apical rim of genital 

 capsule convex either side of median emargination (fig. 180). 



bisinuatus, new species (p. 417) 



Onalips bisinuatus, new species 



Plate figures 180, 203 



DiAGNOsis.^ — The lack of discal punctures on both the pronotum 

 and the scutellum plus the more extensive punctation of the sternites 

 laterally will permit recognition of this species. 



Description.— Male: From one specimen. 



Head: Length more than half of width, 1.72: 2.73; interocular 

 width, 1.65; anterior outline a strongly flattened semicircle, fine dorsal 

 carina distinctly submarginal apically; juga surpassing and almost 

 contiguous beyond apex of clypeus; surface with numerous, well- 

 separated minute punctures and a few coarser ones on each jugum. 



