FIGURES 755 and 756. Amphipsyche proluta McL.: 



755 — abdominal segment 9 and base of anal legs, ventral; 756 — right anal leg 

 and claw, lateral. 



Anal legs (Figure 756) short; dorsolateral sclerite of section "b" 

 grayish yellow, with brown articular rods and a small apical process 

 contiguous to rod and with 3 or 4 long, golden brown setae which are 

 homologous to the "fan" of Hydropsyche; 1 seta near base of rods; the 

 other setae at apical margin, shorter and thinner; similar setae ventrally and 

 at lateral margin are long and more numerous in distal part; no setae on 

 dorsal surface. Membranous surface of anal legs with a short, light, thick 

 ventral seta near base; a group of 5—7 thin, golden brown setae in the middle. 

 Sclerite "c" dark brown; primary seta strong and light; small, secondary 

 setae, light, spinelike setae, and several small, blunt setae near its base. 



Claw (Figure 756) brown, dark brown at the end; short, light, seta 1 

 situated in basal part near suture, with 3 branches; seta 2 slightly longer, 

 light, situated nearby, with 5—7 branches; mediosubdorsal seta 3 brown and 

 strong; large seta 6 situated subdorsally on outer side, shorter and thinner; 

 basoventral setae 7 and 8 light; small seta 5 situated near seta 8, on outer 

 538 side; small spinelike seta 4 situated inward; both setae straight and light. 



614 



