situated above or near basal spine, slightly basally or apically 

 (Figure 406, A). Primary ventral setae of mid-femur (Figure 406, b) 

 dark, strong, moderately long. Basoventral seta of hind legs (Figure 406, C; 

 similar, situated in middle; apical ventral seta very long, almost reaching 

 margin of tarsus; distodorsal seta similar; posterior surface seta of 

 tibia, posterior surface seta of trochanter, and posterior distoventral seta 

 of trochanter also very long. 



(229) 



FIGURES 404-408. Limnophilus griseusL.: 



404 — head, dorsal (A) and ventral (B); 405 — thoracic horn and sternites; 406 — right femur of foreleg 

 (A),midleg (B),and hind leg (C), posterior; 407 - larval case; 408 - penis sheath and ventral appen- 

 dages of male pupa (407 - after Struck; 408 - after Siltala). 



Lateral line on segments 3 — 8. Gills on segments 2—8. 

 Tergite of segment 9 light brown or yellowish, with indistinct punctation 

 at anterior margin; medioanal setae black, long, longer and thicker than 



288 



