4 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 6l 



The male is larger than the female, with last segment of the abdo- 

 men protruding and rounded (fig. lb), bearing four very long hairs 

 and numerous short ones. Along the posterior margin of the meta- 

 thorax and of segments one to eight, inclusive, of the abdomen is a 

 narrow, ill-defined transverse band of about the same shade as the 

 legs ; the anterior portion of abdominal segments is almost clear, 

 except the last, which is uniformly colored. The genitalia are small, 

 consisting of two short, curving blades, fairly well chitinized. 



MEASUREMENTS 



1 Measurements of largest individual. 



