52 



Hind coxa slightly longer than on midlegs but with similar chaetotaxy; 

 trochanter similar in form and chaetotaxy. Femur long, rodlike, with 

 nearly parallel dorsal and ventral sides; dorsal setae as on midlegs, 

 surface setae longer; ventral primary setae in form of large spines with 

 thin, light end. Chaetoids of ventral comb larger and sparser than on 

 midlegs. Tibia and tarsus straight, thin, almost of the same length. Tibia 

 slightly wider apically, posterior distoventral seta in form of short brown 

 spine, anterior apical ventral seta thick, dark; the 4 other setae, as on 

 midlegs, forming pairs anteriorly and posteriorly near apex, subdorsal 

 setae dark, longer and thicker than the thin dorsal seta. Similarly, tarsal 

 setae 2 anterior and 2 posterior, dorsal and subdorsal, anterior setae 

 longer than posterior. Claws as on midlegs. 



Number and arrangement of gills of S.phalaenoides 



Segments 



Dorsal 



Pleural 



Ventral 



1 











2 



1 



1 







3 



1 



1 







4 



1 



1 







5 



1 



1 







6 



1 



1 







7 



1 



1 







8 





1 







Dorsal process of abdominal segment 1 not as long and pointed as in 

 Phryganea; both lateral processes wide, large, nearly cylindrical. 

 Abdominal chaetotaxy as in Phryganea. Arrangement of gills as in 

 Phryganea. 



Tergite of segment 9 slightly dark anteriorly, with a pattern of stripes 

 and dots (Figure 78); median setae dark reddish brown, lateral setae 

 thick, dark, shorter than medioanal setae, larger than in Agrypnia and 

 Phryganea; intermediate and anterior -margin setae thin, large, lateral 

 setae smaller. 



Sclerite "b" of anal legs (Figure 79) reddish brown with darker dots. 

 Three distodorsal setae dark brown, thick, long, situated on large, dark, 

 sclerotized dots connected by a yellowish sclerotized bridge; outer seta 

 slightly shorter and thinner than the other two; median seta situated 

 subapically, thin, golden brown, longer than in Phryganea; ventral seta 



brown, thick, 

 small. 



Sclerite c" yellowish, with brownish outer stripe; seta 



5725 



60 



