306 Mr. F. Catcs's descriptions of 



at the apex. The -? has the intermediate and hind 

 femora thickly pilose beneath on their basal half, and has 

 six abdominal segments, the fifth being ciliate along its 

 lower edge, and the sixth membranaceous and deeply 

 emarginate at apex. 



A very remarkable genus, presenting the most intimate 

 relations with Nesogena and its allies on the one side, and 

 with the LagriidcB, through Statyra, on the other. It 

 has completely the facies of this last genus, but the simple 

 penultimate joint of the tarsi; the prothorax wider than 

 long, its pronotum distinctly separated from its flanks ; 

 joints 4 to 11 of the antenna subequal in length, &c., will 

 serve to distinguish it. The form of the pro- and meso- 

 sterna at once separates it from Strongvlium ; whilst its 

 fuller and larger eyes approximate above, its long narrow 

 form, and depressed elytra, Avill separate it from Nesogena. 



The sexual characters are as in the majority of the 

 species of Nesogena, with the addition of a sixth ventral 

 segment in the $ . I observe in some species of Statyra 

 the anterior femora are pilose beneath. The additional 

 abdominal segment in the $ is also found in the Statyrini 

 (Leconte), and also, according to Lacordaire, in certain 

 American forms in the genus Strongylium. 



It seems to me that the character insisted upon by 

 Lacordaire as separating the Lagriidce. from the Tene- 

 brionidcB, viz., the prominency and contiguity of the 

 anterior coxffi, completely fails us at the present time ; 

 for I can see no material differences in these respects 

 between Statyra and the majority of the- species of 

 Nesogena. I think this prominency, where it occurs (in 

 Traclielostenus, Lagria, Eutra.pela, Artkromacra), is 

 more apparent than real, and its appearance is owing to 

 the prosternum not being elevated between the coxte, and 

 up to a level with them (as it is in Statyra). Leconte, 

 in his " Classification of the Coleoptera of North America," 

 p. 246, relies upon the protuberant anterior coxfe, the 

 dilated penultimate joint of the tarsi, and the different 

 larvse. The second of these points is shared by too many 

 of the Tenehrionidce to be of any value ; and as for the 

 last point see Lacordaire, " Genera des Coleops," p. 564, 

 note 1. 



Psilonesogena hyhrida, n. sp. 



Elongate, narrow, depressed on the elytra ; head shining 

 black, a little aeneous on the front, between the eyes, 



