Tergites of metanotum (Figure 603, B) pale, weakly sclerotized, with 

 indistinct outline. Anterior median tergites in form of small, yellowish 

 semicircles with a strong, moderately long, blackish brown, primary, 

 anterior-margin seta. Posterior median tergites slightly larger; medio- 

 anal primary seta large, blackish; intermediate and lateral seta situated 

 basally, small, thin, setuliform; secondary median setae absent, in contrast 

 to Goeridae and Limnophilidae. Lateral tergites in form of narrow, oblique, 

 brownish plates, slightly concave on median side and convex laterally, in 

 contrast to Limnophilinae; border between anterior and posterior parts 

 little marked; striation in form of thin, grayish lines; posterior part without 

 seta, anterior part with 9—10 setae, including 5 small to moderately long, 

 353 very thin setae, and 3 large, long, blackish brown setae; primary anterior- 

 angle seta among them. 



Propleuron with black pleural suture; epimeron reddish brown, median 

 and lateral sides with blackish brown, partly reddish brown, margin; median 

 submarginal seta brown, moderately long; trochantin mainly black, apical 

 seta moderately long, brown, resembling seta of epimeron; basal setule 

 light, relatively large. Mesopleuron (Figure 603, A) chestnut brown; pleural 

 groove in form of a broad, reddish brown stripe with a black rhomboidal, 

 distal spot; distal margin of epimeron brownish, narrow, that of episternum 

 dark reddish brown, wide, with a reddish black spot at anterior corner; all 

 setae primary; seta of episternum situated near suture, dark brown, 

 moderately long; seta of epimeron smaller, brown, situated near posterior 

 margin. Metapleuron (Figure 603, B) poorly differentiated, in form of 

 reddish brown, pleural groove with a black distal spot; distal margin of 

 episternum with a short, wide, reddish brown area; margin of epimeron 

 narrow, longer; pleural suture with a narrow, brownish, weakly sclerotized 

 stripe; seta of episternum blackish brown, long, situated at reddish part of 

 margin; 2—3 small, light, secondary setae anteriorly; seta of epimeron 

 situated near posterior margin, blackish brown, moderately long. 



Prothoracic horn large, grayish. 



Legs (Figure 604) uniformly rust brown, without dots; black spots at 

 articulation between coxa and trochanter, and between femur and tibia. 

 Setae brown or reddish brown, some setae dark. 



Fore coxa (Figure 604, A) short, massive, with shallow distodorsal 

 indentation; basodorsal seta moderately long, strong, dark brown as are 

 other setae; anterior apical dorsal seta displaced to basal part, short, 

 strong; posterior, distodorsal seta situated basal to indentation, long; 

 2 similar secondary setae and a thin, moderately long seta further distally 

 at margin; both anterior surface setae situated in middle of coxa; subdorsal 

 seta short, strong; seta situated more ventrally larger and thicker; both 

 distoventral setae moderately long, thin; minute, light spinules on ventral 

 and most of posterior surface. 



Trochanter large, nearly as long as femur; anterior seta light brown, 

 short, branched apically; posterior seta reddish brown, longer and thinner, 

 strong; basoventral primary seta moderately long; anterior ventral setae 

 in form of 2 light spines with long, thin apex; posterior ventral setae 

 situated apically and subapically, long, larger and thicker than basoventral 

 seta; setose area of distal part, as in Limnophilidae, with a row of thin, light, 

 slightly curved, hairlike chaetoids, like those on ventral margin of femur. 



441 



