276 



U. S. NATIONAL MUSEUM BULLETIN 216 



carinae present as strong sharp ridges from base to petiolar area; 

 petiolar area an irregular hexagon, bounded laterally by very strong 

 carinae, basally by weaker carinae which are often irregular or obso- 

 lescent; lateral longitudinal carina usually extending basad of petiolar 

 area as a short spur; hind femur about 4.75 as long as deep; nervulus 

 distad of basal vein by about 0.5 its length; discoidella absent; ner- 

 vellus weakly inclivous; third tergite strongly mat, weakly mat 

 apicad of apical transverse carina, its apical margin subpolished; 

 grooves of third tergite with fine longitudinal wrinkling. Structure 

 otherwise as described for Z. parva. 



Black. Apical 0.3 of clypeus stramineous or light brown; scape 

 and pedicel whitish to light brown, dark brown above; flagellum dark 

 brown, paler at base; mouth parts, tegula, subtegular ridge, and hind 

 corner of pronotum, white; thorax varying from entirely black (except 

 for white areas as described) to fulvous with propodeum and front 

 part of prothorax dark brown, often black with the scutellum fulvous 

 and rest of mesothorax more or less fulvous; front and middle coxae 

 and all trochanters whitish; front and middle legs beyond trochanters 

 fulvous, the apex of the femora and upper part of tibiae white; hind 

 coxa and femur fulvous, the femur with a weak subapical infuscation, 

 its extreme apex whitish; hind tibia white, its apical 0.3 fuscous and 

 often with a faint, narrow, subbasal fuscous band ; hind tarsus fuscous 

 brown, the segments light brown basally. 



The type of percontatoria is lost, and it is quite impossible to recog- 

 nize the species intended from the brief original description. The 

 name is applied according to Gravenhorst's interpretation, as first 

 reviser. The part of the Gravenhorst collection containing perconta- 

 toria was lost during World War II, but there seems to be no doubt 

 about the species he identified as this. 



Figures 123, 124. — Localities: 123 (left), Zatypota percontatoria; 124 (right), 



Z. luteipes. 



