13 (2). Two dark longitudinal stripes on the thoracic segments, abdominal 



segment 1, and sometimes also on several other abdominal 

 segments 5. Oligotricha Ramb. (p. 50) 



14 (l). Mesonotum with 1 or 2 small median sclerites near anterior 



margin. 



15 (l6). Frontoclypeus with dark pattern forming a horseshoe. Two small 



sclerites near anterior margin of mesonotum 



7. Oligostomis Kol. (p. 64) 



16 (l5). Frontoclypeus with dark median pattern. One large, transverse 



sclerite with indistinct median suture near anterior margin of 

 mesonotum 6. Semblis Fabr. (p. 56) 



Pupa 



1 (12 



2 (11 



3 (6 



4 (5 



5 (4 



6 

 7 



(3 

 (10 



8 



(9 



9 



(8 



'^0 



(7 



11 



(2 



12 



(1 



13 



(16 



14 



(15 



15 



(14 



End of mandibles long, straight, or curved. Case with spirally or 



irregularly arranged plant particles. 



Anal lobes with or without a small median process posteriorly. 



Case 35—50 mm long, fragments arranged usually in a spiral, 



rarely irregularly. 



Mandibles strongly curved. 



Pupa large (25— 33 mm). Labrum slightly or distinctly narrower 



posteriorly. Case large (35 mm), covered with spirally arranged, 



square, slightly oblong fragments of plants. Fresh stagnant water 



3. Phryganea L. (p. 34) 



Pupa smaller (l6— 20mm). Labrum markedly wider posteriorly. 

 Case smaller (25— 34 mm), covered with plant or mineral particles 



arranged spirally or irregularly 2. Agrypnetes McL. (p. 28) 



Mandibles almost straight or slightly curved. 



Dorsal median process of abdominal segment 1 concave at the end, 



with processes laterally 1. Agrypnia Curt. (p. 18) 



Anal lobes more or less pointed posteriorly. Case covered with 

 reed fragments or spirally arranged plant particles. 



Anal lobes without pointed posterior process 



4. Dasystegia Wall. (p. 44) 



Dorsal median process of abdominal segment 1 rounded at the 



end 5. Oligotricha Ramb. (p.50) 



Anal lobes with short digitiform appendage posteriorly. Case 

 about 25 mm long, plant particles usually irregularly arranged 



9. Trichostegia Kol. (p. 70) 



Apex of mandibles reduced. Plant particles on case arranged in 



rings. 



Rudimentary apex of mandible in form of a small, pointed process. 



Postsegmental plates of segment 5 with 10—19 denticles. 



Frontal process of pupa strongly projecting 



8. Hagenella Mart. (p. 68) 



Frontal process of pupa slightly projecting 



7. Oligostomis Kol. (p. 64) 



17 



