lateral ridge dorsal to eye. Frontoclypeus with a narrow, dark, longitudinal, 

 median stripe with slightly wider, triangular posterior end; dorsal stripes 

 wide, dark, extending from anterior to posterior margin; lateral stripes 

 absent; ventral side with widely separated, broad, dark, longitudinal stripes 

 extending partly to sides. Setae as in O d o nt o c e ru m , relatively thin, 

 light brown. 



Labrum oblong, with deep median indentation, similar to that of 

 Odontocerum in form and chaetotaxy; dorsal sclerite yellow, anterior 

 setae short. 



(415) 



618 



FIGURES 677-679. P silo tret a k isoe nsi s Iwata: 



677 - head, dorsal (A) and ventral (B); 678 - thoracic segments, dorsal; 679 - distal 

 part of foreleg (A) and hind leg (B). 



520 



