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posterior-angle process with narrow lateral margin with several small 

 dots at base. Mesonotum lighter with narrow posterior margin. Tergites 

 of metathorax with dark brown setae and dots. 



Prosternite pentagonal, reddish brown, with lateral groups of small, 

 reddish dots at posterior margin; horn brownish. Mesosternites represent- 

 ed by a row of several pinkish dots. Sternites of metathorax with whitish 

 sclerotized dots. 



Legs brownish yellow, with indistinct punctation. Primary ventral 

 setae of fore femur in form of 2 pointed, light spines, basal spine shorter 

 than apical; posterior seta short, dark. Ventral setae of mid-femur 

 situated in middle, apical seta spine-shaped, lighter and shorter than basal, 

 which is moderately long; trochanter with 2 small, secondary setae. 

 Primary ventral setae of hind femur situated distally, basal seta lighter, 

 more apical seta spine-shaped, moderately long, dark brown; hind trochanter 

 with 2 — 3 small, secondary, posterior setae. 



Gills on segments 2 — 7 or 2 — 8. 



Tergite of abdominal segment 9 light brownish, with several dots at 

 anterior margin; medioanal and posterior-angle seta long, blackish brown; 

 intermediate and lateral seta short, thin; a short, dark seta between medio- 

 anal setae. 



Sclerite "b" of anal legs reddish brown; 3 distodorsal setae, a long, 

 median distal, a similarly neighboring seta, and a much smaller, lateral 

 seta, blackish brown; median margin with a thinner, moderately long seta; 

 ventral seta thin, short. Sclerite "c" light brown, with reddish brown 

 lateral margin; seta small, dark. Claw brown, dark brown apically, with 

 a dorsal denticle. 



Case forming a straight, wide tube; rods on sides thick, firmly attached, 

 no longer, or only slightly longer, than tube. 



Pupa. Length 17 — 21 mm. Antennae reaching segment 8 in male pupae, 

 end of segment 7 in female. Labrum brown basally and anteriorly in middle; 

 anterior margin rounded, with a slight, median projection; setae as in other 

 species of Anabolia. Mandibles with wide distal part; blade slightly 

 convex, serrated; lateral setae situated basally, dorsal seta almost reaching 

 apex, ventral about half as long, both thin. 



Wing sheaths rounded at end, reaching abdominal segment 4. Midlegs 

 natatorial. 



Saddle-shaped process of abdominal segment 1* with wide lobes and 

 numerous black marginal spinules. 



Number of hooks of holding apparatus as follows: III: — 2; IV: 3 (2) — 4; 

 V: 3-4 + 10-17; VI: 3-4(5); VII: 2-1. 



Lateral line on abdominal segments 5 — 8. 



Gills as in larva, but less numerous. 



Setae of anal rods situated basally, in middle, apically, and subapically; 

 spinules numerous, especially laterally. Ventral appendages of male 

 genitalia small, narrow, slightly shorter than lobes of bifid penis sheath. 



Pupal case attached to a stone or piece of wood, its ends covered with 

 sand grains and with sievelike membranes. Pupa bites through wall when 

 it hatches. 



Mode of life and habitats. Small brooks and rivulets with a 

 slow current, rarely in stagnant water. 



Distribution. The European USSR, Western Siberia. In addition. 

 Central and Northern Europe. 



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