BULLETIN 



OF THE 



BROOKLYN ENTOMOLOGICAL SOCIETY 

 Vol. X April, 1915 No. 2 



SOME NEW BEETLES IN THE FAMILIES OSTOMID^ 



(TROGOSITID^) AND CLERIDiE FROM 



CALIFORNIA. 



By Edwin C. Van Dyke, Berkeley, Gal. 



OSTOMID^ (TROGOSITID^) 



The genus Nemosoma Latr., has generally been misunderstood 

 by American Coleopterists, chiefly from the fact that the two 

 species, parallelns Melsh. and cylindricum Lee, have so long 

 stood as our representatives of the genus. These we now know 

 are quite dissimilar from true Nemosoma as represented by the 

 European N. elongatum Linn., the species upon which Latreille 

 founded the genus, and in fact belong in another genus. The 

 recently described Pseudalindria fissiceps Fall, as pointed out by 

 Mr. Charles SchaelYer, is however, a true member of the genus. 

 A new species in my own collection also belongs here. The other 

 species, parallelns Melsh., cylindricum Lee, caviceps Fall, and one 

 new one belong in the genus Corticotomus Sharp, a genus founded 

 upon the Guatemalan species, C. basalis Sharp. One other Central 

 American species, C. gracilis Sharp from Panama has also been 

 described. 



Nemosoma is a small genus containing, so far as I know, one 

 species in Europe, two in the Caucasus, one in the West Indies, 

 two in California, one in Central America, and one or more in 

 South America. The beetles are elongated and often very prettily 

 marked and they live in forest trees, chiefly coniferous, and roam 

 around in the tunnels of the Scolytidae or bark borers, upon the 

 eggs and .larvae of which they and their larvae no' doubt feed. 



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