«JA 



FIGURE 434. Asynarchus amurensis Ulm. Right 

 trochanter and femur of foreleg (A, B), midleg(C), and hind 

 leg (D), posterior 



Tergite of segment 9 pale^ light brownish, with numerous, grayish dots 

 at anterior margin; medioanal and anterior-angle setae brownish black, 

 about the same length; intermediate seta and lateral seta short, thin; 

 secondary seta between medioanal setae usually absent. 



Sclerite "b" of anal legs reddish brown, with black setae; median distal 

 and neighboring seta thick, long; lateral seta situated at some distance, 

 thinner, moderately long; ventral seta short, thin; a strong, moderately 

 long, and a short, thin seta at median margin; surface with 7 — 9 thin, 

 short, and small setae. 



Sclerite "c" light brown, with black lateral margin; basal seta small, 

 dark. 



Claw brown, with 2 dorsal denticles of similar color and size; apex 

 chestnut brown; median setae 1 and 3 dark brown, 3 longer than other setae; 

 seta 2 moderately long, light; seta 6 short, situated near end of suture; 

 basoventral seta 7 yellowish, darker than light seta 8; seta 5 in form of 

 small, transparent spinule near seta 8; seta 4 situated basally, thin, 

 „ P^ brownish (Figure 435). 



Case made of densely arranged, large pieces of detritus including rods 

 40 — 50 mm long, sometimes projecting anteriorly, and especially posterior- 

 ly (Figure 436). 



310 



