Pronotuni (Figure 838) reddish brown or reddish, its form as in 

 B. pu 11 at a, also with projecting anterior angles. Mesonotum, metanotum, 

 and legs as in B.pullata. Ratio of length of legs 64:100:120. 



Gills and lateral line absent. Teat-shaped process of anal legs with a 

 strong seta at apex which is much smaller and about half as long as 

 neighboring thick seta (Figure 839). Claw as in B. p u 1 1 a t a, with 

 2 denticles. Case as in Figure 840. 



8^2 



526 



8k1 



FIGURES 841 and 842. Beraea m a urus Curt.-. Pupa (after 

 Thienemann) : 



841 — right mandible, dorsal (A), mid -tarsus (B),anal lobes, 

 dorsal (O.left anal rod, lateral CD); 842 — membrane of 

 anterior opening of case. 



Pupa. Length 5— 6 mm. Body narrow, with transverse labrum. Distal 

 part of mandibles (Figure 841, A) relatively wide, slightly curved at end, 

 inner side serrated; lateral setae situated close together at base, short. 

 Mid-tarsus bare with sparse setae (Figure 841, B). Holding apparatus 

 little developed; segments 3—6 with small presegmental plates, each with 

 a small hook directed posteriorly; postsegmental plate of segment 5 with 

 2 (or 3) hooks directed anteriorly. 



Anal appendages (Figure 841, C) short, wide at base, irregularly triangular 

 in dorsal view, tapering at end, in form of a small, sclerotized, forked 

 process curved dorsally (Figure 841, D); appendages and process with 

 strong, dorsal setae. 



Case as in larva; anterior membrane with narrow, curved, ventral 

 slit as in B.pullata (Figure 842); posterior membrane convex, slightly 

 projecting dorsally above wide elliptical median hole. 



Mode of life and habitats. On rocks in surf of brooks; outside 

 water near springs, among humid leaves and moss. 



Distribution. Western border area of European USSR, Caucasus. 

 In addition, Europe. 



656 



