more distally (Figure 211, A); posterior seta moderately long, dark, 

 situated nearby basal to spines. Posterior seta of mid -femur thick, long, 

 brownish black, situated in the middle; apical ventral seta situated more 

 basally, forming a thin, light spine; basoventral seta situated near basal 

 margin, blackish, thick, long, like primary posterior seta (Figure 211, b); 

 ventral primary setae of hind femur situated in middle of segment, apical 

 ventral seta thick, brown, moderately long, situated near a thick seta, 

 basoventral seta forming a large, thin, light spine; posterior primary seta 

 situated subventrally near the apex, blackish brown, long, resembling long 

 posterior seta of trochanter (Figure 211, C). 



FIGURES 211-213. Apatania zonellaZett.: 



211 - trochanter and femur, posterior of foreleg (A), mldleg (B) and hind leg (C); 212 

 tergite of segment 9; 213 - case. 



Lateral line on segments 2—7 with minute dense hairs. Gills on 

 segments 1—6, 



Tergite of segment 9 chestnut brown, with coarse punctation near 

 anterior margin; tubercles absent; serrated ridges or spinules in some 

 places; large setae thick; medioanal setae black, thick, long but not as 

 long as in the preceding forms; anterior -angle setae shorter and much 

 thinner; 3 setae between medioanal setae; 5 setae between medioanal setae 

 and the anterior -angle setae, including 2 primary setae; 10 small, brown, 

 thin setae submarginally on surface; a small seta lateral to the sclerite 

 (Figure 212). 



161 



