(443) 



113 



11^ 



FIGURES 713 and 714, Athripsodes cinereus 

 Curt. Pupa (after Siltala): 



713 — mouth parts: labrum (A), right mandible, 

 ventral (B); 714 — anal rod of male (A), of 

 female pupa (B), ventral appendages and penis 

 sheath of male (C). 



Case shorter than in larva, 10 — 12 mm long; anterior and posterior 

 membrane with a round or broadly elliptical hole, surrounded with light sand 

 grains. 



Mode of life and habitats. Littoral of lakes and rivers, usually 

 on stony and sandy- stony bottom; common on solid bottom among rushes 

 and reeds. 



Distribution. The European USSR (northern, western, and central 

 regions), the Urals, Middle Asia, and southern Siberia. In addition, Europe, 

 North America. 



3. Athripsodes bilineatus Linne * 



Klapalek, 1893 :92— 95, Figure 25.— Siltala, 1905:87,90.— Ulmer, 1909:248, 

 308.— Lestage, 1921:609—616.— Hickin, 1953:111—113, Figures 1—7. 



Full-grown larva. Length 8—9 mm. Resembling A. cinereus, 

 coloration lighter. Head yellowish brown, with pale pattern (Figure 715, A). 

 Anterior part of frontoclypeus with only 2 pairs of dots, anterior pair absent; 

 posterior part with a group of 5 small dots; area of tentorial pits slightly 

 dark. Dorsal stripes barely visible or absent, replaced by 3 large brownish 



" See Leptocerus bili neat u s (McLachlan, 1874-1880:308; Siltala, 1905-1906:61). 



556 



