light notch; the sclerite bears a long anterior -angle primary seta near the 

 notch; a dark spot with 5 small thin setae and one short dark seta on the 

 outer side; a small seta on the inner side. Each half of the sclerite with 

 2 short thin setae near the anterior margin; a long medioanal seta and a 

 small seta near it in the posterior part, on the outer side; a similarly long 

 dark seta at a distance from the lateral margin; nearby, a small light seta on 

 294 the outer side. The integument on the ventral side of the prothorax is 

 thickened. 



Meso- and metathorax (Figure 339) much broader than prothorax; 

 membranous surface of thoracic segments of fixed specimens pinkish 

 violet, with a distinct, light pattern; anterior -margin setae (unlike in 

 Rhyacophilinae) well developed on meso- and metanotum, moderately long; 

 anterior-angle and medioanal setae black, long, and strong; intermediate 

 and lateral surface setae small, situated at the base of the median seta. 



^295) 



FIGURES 339 aad 340. A psilochorema sutshanum Mart.: 



339 - mesothorax, metathorax, abdominal segment 1, pleural sclerites 

 and base of coxae, dorsal; 340 - left pleural sclerite of mesothorax. 



319 



