laterally, narrower in the middle; there are large dots in the middle 

 posterior to this border; the black dashes of the posterior margin are 

 narrow; the medioanal seta and the anterior-angle seta which is displaced 



posteriorly are long and black; the 

 intermediate and lateral setae are small 

 '229) x / and thin; intermediate seta situated near 



the outer margin of the black dash, lateral 

 setae on a light background. 



Sclerite "b" of anal legs with numerous 

 large dots; it bears several dots in the 

 lateral part, dorsally near the base the 

 sword-shaped process is slightly curved 

 and directed posteriorly; the outer seta 

 on the distal part of the sclerite is long 

 and black; the basal part bears a similar, 

 strong and black shorter seta; as usual 

 in species of Rhyacophila s. str., the 

 second distal seta is situated medially at 

 the margin of the claw and is short and 

 thin. The claw (Figures 219 and 220) has a short distal part with 1—2 small, 

 blunt, ventral spinules; the tubercle at the base of seta 8 is large; setae 1, 

 3 and 5 long and black; setae 6 and 4 shorter, thinner and brown; seta 2 

 small and thin; setae 8 and 7 light and curved. 



Before pupation, the larva builds a large, cavelike pupal case which is 

 built of small stones and large gravel grains. 



Mode of life and habitats. Mountain brooks and rivulets with 

 a stony bottom. 



Distribution. Caucasus. 



FIGURE 220. Rhyacophila subovata 

 Mart. Claw of anal leg, inner side 



2. Group Hyperrhyacophila Dohler 

 Dohler, 1950:272-273, 276. 



Full-grown larva. Length 18—24 mm. The light, anterior-angle 

 depression on the pronotum bears 2 long dark setae (a primary and a 

 secondary) and a small light seta (2nd secondary seta). Abdominal gills 

 conical-pectinate, with a long basal stalk and a short dorsal branch 

 (Figure 224). 



Mode of life and habitats. Mountain brooks with cool water and 

 a stony bottom. 



Distribution. Caucasus. Europe, southern and central Iran. 



1 . Rhyacophila vicaria Martynov (Rhyacophila sp. 

 "larva conibranchia" Lepneva) 



Lepneva, 1946:331-332; Figures 8-9; 1957:13. 



Full-grown larva. Length 18.0—24.1 mm. Ground color of sclerites 

 yellow or whitish yellow. Head not as narrow as in species of Rhy ac o- 

 phila s. str., about 0.78 as broad as long; it is broadest anteriorly, at the 



239 



