XXVI MONTHLY PROCEEDINGS 



The following additions to the Library of the American Entomo- 

 logical Society were announced : — 



Canadian Entomologist, vol. xi, No. 8. From the Editor. 



Le Naturaliste Canadien, September, 1879. From the Editor. 



Bulletin of the Brooklyn Entomological Society, vol. ii, No. 2. 

 From the Society. 



North American Entomologist, vol. i, No. 4. From the Editor. 



Report of the Entomologist, C. V. Riley, August 22, 1879. From 

 the Author. 



An account of a new genus of minute Pauropod-Myriapods (^Eary- 

 pauropus spinosus), by John A. Ryder. From the Author. 



November 14, 1879. 

 Vice-Director Dr. Horn in the chair. 



Dr. Leconte remarked that the paper he had recently presented 

 for publication consisted chiefly of synoptic tables, some genera which 

 from the enlargement of the collections seemed to require renewed 

 study. Among them he mentioned : 



Leptacinus (including Leptoliniis~), 9 species, of which 3 are new. 



XantlLolhius 12 species; 5 new. 



Latlirohiuvi 33 species ; 16 new. There are three natural divisions 

 indicated : the first containing only L. grande, in which the epipleuras 

 have no marginal stria; the front tibiae are obliquely impressed on 

 the inner face and the front thighs are not thickened. The second 

 contains species with an epipleural stria ; the front tibiae obliquely 

 impressed on the inner face and the front thighs thickened and 

 frequently armed with a tooth in the % . In the third division the 

 epipleural stria is visible, but the front tibise are feebly or not at all 

 impressed and less dilated ; the front thighs are thickened but not 

 toothed. In the first and second divisions the elytra are densely 

 punctured, while in the third the punctures are more or less regularly 

 arranged in rows. The sexual characters of the S , as in most genera 

 of Staphylinidae, enable the species to be readily distinguished. 



Stiiicus 7 species; 3 new. Very distinct by sexual characters and 

 sculpture of under surface of the head. 



Sunius. I have been obliged to reduce the number of species to five. 



Bryaxis 31 species; 7 new. 



Hyperaspis 26 species; 9 new. The punctuation of the under surface 

 frequently enables species otherwise similar to be easily separated. 



IlopUa 12 species; 4 new. One of these //. equina closely re- 



