Light tiaberculate area of median indentation of labrum larger than in 

 Ph. bipunctata. Dorsal and ventral blades of right mandible with 2 teeth. 



Pronotum with dark, sharply defined transverse stripe near anterior 

 margin, as m Ph. bipunctata; surface slightly dark along median 

 suture, each half with groups of small reddish brown dots in the middle. 



Fore femur dorsally with sharp dark stripe, as in Ph. bipunctata; 

 stripe less distinct on mid- and hind femora and tibia. 



Abdominal segment 8 usually without dorsal anterior -margin gills, in 

 contrast to Ph. bipunctata. Sclerite of abdominal segment 9 light 

 yellow, with a brown stripe with reddish brown dots near anterior margin. 



FIGURE 46: 

 Phrygan ea 

 g r a n d i s L. 

 Larva case 



FIGURES 47 and 48. Phryganea grandisL. Pupa: 



47 — anteclypeus and labrum; 48 — details of abdomen: dorsal process 

 of segment 1 (A), spinules of holding apparatus of segments 5 and 6 

 (B). (47 and 48 A — after Siltala, 48 B — after Tomaszewski). 



Case (Figure 46) in form of straight, wide tube with pieces of plants 

 arranged in a spiral, slightly narrower posteriorly; spiral with 7—9 coils. 



Pupa. Length 26 — 33 mm. Antennae reaching segments 7 — 8 in male pupae, 

 segments 6—7 in female. Frontal sclerite forming a tuberculate, folded 

 process curving over base of clypeus. Labrum and clypeus slightly 

 narrower posteriorly (Figure 47). Dorsal process of abdominal segment 1 

 of slightly different form from that of Ph. bipunctata (Figure 48, A). 

 Dorsal gills of abdominal segment 8 absent; spinules of holding apparatus 

 more numerous than in Ph. bipunctata (Figure 48, B), usual numbers : 



43 



