98 MEMOIRS OF THE NATIONAL ACADEMY OF SCIENCES. 



Family Trichopterygidae. 



Ptinodes pini Lee, male. United States. 



Ptinodes quercus Lee, male. United States. 



Plinellodea lecontei Matth., male. United States. 



Idmulodes paradoxus Matth. United States. 



Ptilius cedipus Plach. Deutsche ent. Zeit., xxx, p. 248. 



Family Silphidae. 



Adelops aubei Kiesw. Presence discovered near Toulon, by Gue'rin-Me'nneville, in a nest of Pompilius ; others 

 occurred under stones, and accompanied by MicrotypMus schaumi and Amaurops aubei. It is common under 

 dead leaves near Marseilles ; also in company with Lyreus subterraneus, under stones buried in the soil. 



Adelops ovoidea Fairm. Southern France. 



Adelops epurcvoidss Fairm. Southern France. 



Adelops subalpina Fairm. French Alps. 



Anommatus 12-striatus Mull. 



Anammatus ptusillus Schauf. 



Anommatus kiesenuwtteri Reitt. 



Anommatus vallambrosw Dieck. 



Lyreus subterraneus Aube". 



Lyreus dieclci Reitt. 



Lyreus planieollis Fairm. 



Langelandia anophthalma Aube. Southern Europe. 



Langelandia reitteri Belon. Southern Europe. 



Langelandia exigua Perris. Southern Europe. 



Langelandia callosipennis Reitt. Southern Europe. 



Aglenus brunneus. Europe, whence introduced into the United States. 



Pinodytes cryptophagoides Maun. United States. 



The species of A no 111 in at us, like those of Lyreus, Langelandia, and Aglenus, allied genera and 

 equally blind, live under the bark of damp wood adhering to the soil, or under stones which 

 cover rotten wood ; they are terricolous, but none of them is peculiar to caves, though one species 

 of Anommatus was observed by H. Muller in a cave in Carniola (Bedel, p. 63). 



Family Pselaphidae. 



This family, like the Scydmenidse, comprises a certain number of genera or species which live 

 under stones or in the soil, whose mode of life is ultimately analogous to that of the cave forms 

 (Bedel). 



Amaurops. 



Scotoplectus capellce Reitter. Croatia ; living in company with Adelops, under dead leaves, between blocks of 



limestone ; = stussineri Saulcy. Carniola ; fide Sharp). 

 Reteronyx heterocerus Saulcy. France. 

 Heteronyx aberrans Saulcy. France. 



Nicotheus tibialis Casey. Eyes small in male, rudimentary in female. District of Columbia and Virginia. 

 Adranes emeus Lee. United States. 

 Adranes lecontei Brendel. United States. 

 Eutyphlus similis Lee, United States. 



Bythinus cristaius Saulcy. Found by Abeille de Perrin under an enormous stone at Ariege. 

 Bythinus bonvouloiri Saulcy. Hautes-Pyre"n6es ; under moss. 

 Bythinus hypogeus Saulcy. Eyes much reduced. Pyrenees. 

 Bythinus codes Saulcy. Eyes much reduced. Pyrenees. 



(Eyes present in both sexes in the two last species, fide Sharp. ) 



Family Scydmenidae. 

 Leptomastax sp. 

 Scydmwnus sp. 

 Cephennium sp. 



Family Leptinidae. 



Leptinus testaceus Mull. Europe and United States. 



Family Platypsyllidae. 



Platypsylla castoris Rits. Parasite on the beaver. Its larva is also blind. 



