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 2. Genus Polycentropus Curt. 



1. P. flavomaculatus Pict 432 



3. Genus Holocentropus McL. 



1. H. picicornis Steph 441 



2. H. stagnalis Alb 448 



3. H. dubius Ramb 448 



4. Genus Cyrnus Steph. 



1. C. flavidus McL 450 



2. C. trimaculatus Curt 456 



3. C. insolutus McL 456 



5. Genus Neureclipsis McL. 

 1. N. bimaculata L . 457 



IX. Family Arctopsychidae Mart. 



1. Genus Arctopsyche McL. 



1. A. ladogensis Kol 465 



2. A. palpata Mart 474 



X. Family Hy dropsy chidae Curt. 



Subfamily Hydropsychinae Ulm. 

 1. Genus Hydropsyche Pict. 



1. H. ornatula McL 480 



2. H. guttata Pict 490 



3. H. angustipennis Curt 490 



4. H. pellucidula Curt 497 



5. H. saxonica McL 499 



6. H. instabilis Curt 500 



7. H. nevae Kol 501 



2. Genus Cheumatopsyche Wall. 

 1. Ch. lepida Pict 509 



Subfamily Macronematinae Ulm. 



3. Genus Macronema Pict. 



1. M. radiatum McL 518 



4. Genus Amphipsyche McL. 



1. A. proluta McL 529 



5. Genus Aethaloptera Brauer 

 1. Ae. rossica Mart 540 



