Thoracic and abdominal gills with thin, long filaments which are 

 characteristic for the species (Figure 206). 



The dorsolateral sclerite of the anal legs (Figure 207) is light yellow, 

 without spots; distodorsal tubercle blunt and high; claw-shaped process 

 as in the other species of the group; basoventral hook massive and black. 

 Basal part of sclerite with a long, dark seta; distal part with 2 setae, a 

 similar strong, longer seta and a shorter seta at the median margin. 

 Setae 1, 3,4 and 5 of the claw long and dark; seta 6 shorter; seta 2 thin and 

 short; ventral setae 7 and 8 light, curved; tubercle at the base of seta 8 blunt 

 221 and large; ventral spinules of distal part blunt, 2 or 3 in number; the most 

 distal spinule smaller than the other two. 



208 



FIGURES 207 and 208. Rhyacophila cu pre sso ru m Mart.: 



207 — anal leg, outer view; 208 — end of body of a full-grown male pupa, dorsal. 



The larvae are identified by the sclerotized parts of the exuviae in the 

 cocoon of a male pupa of Rhyacophila cupressorum Mart, with fully 



230 



