212 



Sclerite "b" of anal legs brown, large setae blackish brown; median 

 distal seta long, thick, neighboring seta slightly shorter; lateral seta situated 

 near former 2, strong, moderately long, much thinner; a large seta like the 

 lateral seta at inner margin and a thin, moderately long, brown seta basally; 

 distoventral seta strong, thin, moderately long; surface with 6—7 setae which 

 are short to moderately long. 



Sclerite "c" light brown, with wide, short, brownish black, lateral margin, 

 with small, light seta at base. Claw brown, dark brown at end, with a large, 

 blunt, dorsal denticle; seta 1 thick, reddish brown; seta 3 situated dorsally 

 in basal part, thick, long, the longest on the claw; seta 2 much shorter, thin; 

 seta 6 situated nearby close to end of suture, small, thin, yellowish; ventral 

 setae 7 and 8 light yellow, thick, slightly curved; seta 5 small, light, situated 

 laterally to 8; seta 4 larger, situated more inward. 



FIGURE 368. Limnophilus e x t r i c a t u s McL. Pronotum (A) 

 and mesonotum (B) 



Case made of sand grains, with smooth surface, almost cylindrical, slightly 

 curved, rounded posteriorly; anterior opening truncate, posterior opening 

 closed by a membrane with a large, round hole in middle; length 15—16 mm. 



Pupa. Length 11 mm. Antennae reaching end of abdominal segment 8. 

 Labrum light, with distinct anterior median process with minute dark 

 spinules; seta 1 sraall, thin, situated laterally; large, hooked setae dark 



265 



