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2. Chrysopa vulgaris Schneid. 8 specimens, collected 

 during the last part of August. The specimens are smaller 

 in size and have a more slender abdomen than specimens 

 from Northern Europe. 



3. Osmylus maculatus Fabr. One specimen, which 

 agrees in every point with Danish specimens. 



4. Dilar nevadensis Ramb. A very fine male, collec- 

 ted I. IX. 1911. As far as I know, it is the first specimen 

 recorded from Corsica. I have seen fragments of a female 

 of the same species from Parnass, Greece. 



5. Micromus u. sp. One male and two females. 



6. Hemerobius lutescens Steph. One female. 



II. Trichoptera. 



1. Limnophilus afflnis Curt. One female. 



2. Micropterna lateralis Steph. A small series of this 

 fine insect; the specimens are very varying in size. 



3. Sericostoma clypeatum Hag. Of this very distinct 

 species, up to this time only known from Corsica, there is 

 a male. Some females from the same place, I think, belong 

 to the same species. 



4. Hydropsyche instabilis Curt. Two males and seven 

 females. The specimens are darker than examples from 

 Northern Europe. 



5. Plectrocnemia geniculata Mac Lachl. Seven spe- 

 cimens. 



6. Psychomyia pusilla Fabr. One female. 



7. Rhyacophila obliterata Mac Lachl. Four males and 

 one female. 



8. Rhyacophila evoluta Mac Lachl. One male and 

 one female. 



III. Ephermerida. 



1. Thraulus Budtzi n. sp. Imago (dried), <^. Eyes 

 dark reddish brown. Thorax brown. 1^', 8"\ 9'^ and 10*" 

 segments of abdomen greyish black, the rest transparent 

 whitish and dorsaliy with small dark dots on the front part 



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