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lateral margin narrow, brown; posterior margin wide, smoke brown, with 

 dark, brownish stripes, divided by a wide space in middle of each half; 

 posterior-angle process with brownish margin and a large dark spot. 

 Mesonotum brownish in middle of anterior half; other surface yellowish 

 brown; posterior margin narrow, brownish, slightly wider laterally. 

 Sclerites with pale, pinkish brown, sparse punctation; setae thin. 



Sclerites of metathorax indistinct, whitish; setae pinkish brown; 

 anterior-margin sclerites situated close together with 3 — 4 secondary 

 setae in addition to moderately long anterior-margin seta; posterior 

 median tergites the same, with a moderately long medioanal seta and 

 5 — 6 additional setae; lateral sclerites large, with transverse band of 

 reddish brown lines and dots, anterior part of sclerite setose, posterior 

 part much smaller, without setae; each lateral sclerite with 16 — 17 setae, 

 primary anterior-angle seta and 3 — 4 secondary setae moderately long, 

 larger than others. 



Propleuron, as in species of Li m no p h il u s , with broad, brownish, 

 pleural suture; base of trochantin of similar color; seta of trochantin short, 

 light; seta of epimeron slightly larger. Meso- and metapleurites with 

 narrow pleural suture and pale dots; setae as in species of Li m no p h il u s . 



Prosternite (Figure 413) trapezoidal, indistinct, grayish, wider anterior- 

 ly, with 2 — 3 dense grayish dots at posterior margin laterally; horn grayish, 

 lighter basally. Mesosternites represented by a row of 5 large, pinkish 

 dots and 2 additional dots more laterally. 



Legs uniformly brown, without punctation, with narrow, brownish articu- 

 lations; setae pinkish brown. Large setae of forelegs moderately long, 

 lighter and thinner on tibiae and tarsi; primary ventral seta of fore femur 

 (Figure 414, A) in form of strong, light spines, apical spine more than twice 

 as large as basal; posterior seta dark, strong, situated near apical spine. 

 Mid-trochanter (Figure 414, B) with short, posterior, primary seta and long, 

 posterior, distoventral seta; both setae on hind trochanter long. Primary 

 ventral setae of mid-femur moderately long, pinkish brown, basal seta 

 longer, as long as strong, posterior, primary seta. Basoventral seta of 

 hind femur (Figure 414, C) light brown, short, spine-shaped; apical ventral 

 seta strong, moderately long, dark; primary, posterior seta long. 



Gills on segments 2 — 8. 



Tergite of segment 9 grayish, with indistinct punctation at anterior 

 margin; medioanal setae close together, long, reddish brown; anterior- 

 angle setae similar, thinner and smaller; intermediate and lateral seta 

 short, thin; a short, strong seta and 2 — 3 small, thin setae between medio- 

 anal setae displaced slightly to the left; surface with 3 — 6 small to minute 

 secondary setae. 



Sclerite "b" of anal legs light brown; posterior margin with 3 distodorsal 

 setae, a large, thick, median, and 2 smaller setae; ventral seta thin, 

 moderately long; a moderately long seta, and 2 small, thin setae at median 

 margin; surface with 6 — 7 small, secondary setae. Sclerite "c" yellowish 

 brown; lateral margin wide, dark reddish brown; seta short, pinkish. 



Claw yellowish brown, with reddish brown apex and a dorsal denticle, 

 1 — 2 light spinules near denticle. Setae as in Limnophilus; seta 1 short, 

 situated in basal part; seta 3 situated subdorsally in distal part, moderately 

 long; setae 1 and 3 thick; seta 6 short, 2 moderately long, both thin and 

 situated subdorsally on side; setae 1, 2, 3, and 6 pinkish; basoventral setae 

 7 and 8 straight, short, light; setae 4 and 5 small, transparent, situated 

 lateral to seta 8. 



294 



