14 



Prothorax ventrally with a large, horn-shaped process. Case 

 made of plant, rarely mineral, particles arranged spirally or in 

 rings; sometimes a piece of grass stem is used instead of a 

 case 1. Phryganeidae Burm. (p. 13) 



3 (2). Mesonotum sclerotized. Horn-shaped process on ventral side 



of prothorax absent; Case in form of shield covered with sand 

 grains or small detritus particles. ... 2. Molannidae Wall. (p. 522) 



4 (l ). Larva eruciform. 



5 (l6). Horn-shaped process on ventral side of prothorax absent. 



6 (is). Metanotum membranous, without sclerites. 



7 (8). Mid- and hind femora divided, consisting of a small basal part 



and an apical part which forms the greater part of the femur . . . 

 9. Leptoceridae Leach (p. 540) 



8 (7). Mid- and hind femora not divided. 



9 (10). Lateral line absent, replaced by an interrupted row of fine spinules 



and small sclerotized dots 10. Beracidae Wall. (p. 648) 



10 (9). Lateral line present. 



11 (12). Mesonotum sclerotized; abdominal segment 1 without processes. 



5. Brachycentridae Ulm. (p. 461) 



12 (11). Mesonotum m.embranous or sclerotized only anteriorly; abdominal 



segment 1 with processes . . . 11. Sericostomatidae Steph. (p. 662) 



13 (6). Metanotum with 4—6 small tergites. 



14 (15). Metanotum with 4 tergites, including 2 median, more or less large, 



transverse sclerites, one behind the other. Case covered with 

 sand grains 7. Odontoceridae Wall. (p. 511) 



15 (14). Metanotum with 6 or 2 tergites, 3 or 1 on each side; in the first 



case, the lateral sclerite is oblong, the median sclerites small, 

 dot-shaped. Case characteristic, covered with detritus. Far 

 East 6. Calamoceratidae Ulm. (p. 499) 



16 (5). Horn-shaped process on ventral side of prothorax. 



17 (I8). Anterior angles of pronotum pointed, directed anteriorly. Case 



tubular, covered with sand grains and small flat stones at the 



sides 3. Goeridae Ulm. (p. 405) 



18 (17). Anterior angles of pronotum not pointed. 



19 (20). Abdominal segment 1 with 2 lateral processes, dorsal process 



absent. Larva small, case usually tetrahedral 



4. Lepidostomatidae Ulm. (p. 437) 



20 (19). Dorsal and lateral processes present on abdominal segment 1. 



Larvae and cases vary considerably in size 



2. Limnophilidae Kol. (p. 72) 



Pupa 



1 (4). Antennae very long, coiled around posterior end of body. 



2 (3). Mandibles with long, thin curved, and slightly thickened end. Length 



about 16 mm 7. Odontoceridae Wall. (p. 51 1) 



3 (2). Mandibles without distal filiform end. Pupa small (5—12 mm) 



9. Leptoceridae Leach (p. 540) 



12 



