Main color of thoracic sclerites yellowish; pronotum with a narrow, 

 dark brown stripe near the anterior margin and near the anterior angles; 

 posterior margin blackish brown; two dark brown spots at the sides of each 

 half of the sclerite, near the base of the surface setae; three dark brown 

 spots in each half of the me so- and metanotum; anterior angles of these 

 sclerites also darker than the ground color; indistinct light dots on all 

 3 thoracic segments in addition to the dark spots. Legs and abdomen as in 

 A. multipunctata. 



The case resembles that of A. multipunctata. 



Pupa. Blades of mandibles narrower and more curved than in A. mult i - 

 punctata. Both presegmental and postsegmental sclerites of the holding 

 apparatus with more numerous spinules than in A. mu It ip unc t at a; 

 according to Siltala (1904), the presegmental sclerites bear 14—21 spinules, 

 the postsegmental sclerites 19—25 spinules. The case is usually slightly 

 larger than in A. multipunctata, 7—9 mm long; it is attached to the 

 substrate as in A. multipunctata. 



Mode of life and habitats. Larvae living in slowly running water, 

 in plant thickets; characteristic of small rivers and rivulets overgrown with 

 plants in the plains, and of the water bodies of floodplains of these rivers; 

 it occurs in estuarine parts of lakes. 



Distribution. South, southeast and west of the European USSR, 

 Caucasus; Middle Asia. In addition, Europe, Iran. 



Genus 2. Hydroptila Dalman 



Full-grown larva. Length 3—4 mm. Head without sutures. Setae 5 and 6 

 less than twice as long as the labrum. Left mandible with strongly 

 projecting blades; right mandible with a membranous part in the median 

 depression. Sclerites of dorsum of all 3 thoracic segments equally 

 developed, usually dark; prothorax with 3 sternites, a median sternite in the 

 anterior part and two lateral sternites in the posterior part. Femora of 

 forelegs with a basoventral process; tibiae with a distoventral process. 

 Abdominal segments 3—7 strongly convex dor sally and ventrally; inter- 

 segmental folds deep; medioanal setae of posterior segments not as long 

 as in Agraylea. Claw of anal legs with three denticles; basal part short. 

 Three tracheal gills at the end of the body: one median gill near the 

 posterior margin of the dorsal sclerite of segment 9; one lateral gill at 

 the sides, near the base of the claw of the anal leg. 



Larval case laterally compressed, bean-shaped or kidney-shaped in 

 profile, consisting of two symmetrical halves. Dorsal side convex; ventral 

 side slightly concave; anterior and posterior ends rounded; cases made of 

 secretion, with a covering of fine sand grains or diatoms. 



Pupa. Length 2.4— 3.3 mm. Labrum rounded anteriorly; sides straight 

 or curved; anterior margin with one, rarely two, pairs of rudimentary 

 setae; mandibles long, with thin distal margin; anterior basal seta directed 

 forward, slightly curved. Natatorial setae situated on segments 1—3 of mid- 

 tarsi. Holding apparatus as in Agraylea. Immature pupa green; it 

 becomes later darker, assuming the coloration of the imago. 



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