io MEMOIRS ON THE COLEOPTERA. 



one-half wider than long, widest before the base, the latter strongly 

 rounded, the sides converging and strongly arcuate, the basal angles 

 broadly rounded and obliterated; surface even and strongly convex, 

 with mere vestige of a minute elongate ante-scutellar impression; elytra 

 moderately transverse, parallel, equal in width to the prothorax and 

 slightly longer, the apices feebly sinuato-truncate laterally; abdomen 

 thick, parallel, about as wide as the elytra; basal joint of the long and 

 rather slender hind tarsi as long as the next two combined; middle coxae 

 very sensibly separated, the mesosternal process extending to their 

 apical fourth or fifth, truncate and rather wide at the very free tip, with 

 strong fine lateral beading, the metasternum transverse, slightly arcu- 

 ate, separated from the process by a sunken convex ridge. Length 

 2.8 mm.; width 0.82 mm. California (locality not recorded). 



This species is not so stout as the European gentilis Mark., and 

 the prothorax is much less transverse, the head relatively larger 

 and the basal impressions of the abdomen deeper medially. The 

 infra-lateral carinae of the head are distinct and apparently entire. 



Melanalia n. gen. 



The body is rather small and slender, parallel to feebly fusoid, 

 moderately convex, the middle coxae very narrowly separated, the 

 mesosternal process becoming gradually very finely aciculate and 

 extending to their apical fifth, separated from the narrowly and 

 feebly, medially parabolic metasternum by a sunken convex ridge 

 extending under its very free apex. The hind tarsi are rather long 

 and slender, the basal joint even more elongate than in Microglossa, 

 being but little shorter than the next three combined. The infra- 

 lateral cephalic carinae are strong and entire and the elytra are 

 rather broadly and not very deeply sinuate laterally at their apices. 

 The first three tergites are equally but not very strongly impressed 

 at base, somewhat as in Microglossa, to which the genus is rather 

 closely allied, differing in the more narrowly separated middle coxae, 

 with more aciculate mesosternal process, longer basal joint of the 

 hind tarsi and narrower and slighter aspect of the body, giving it 

 a distinctly different facies. 



Melanalia tabida n. sp. Parallel, moderately convex, rather shining, 

 deep black, the elytra slightly picescent, the legs piceous-black; punctures 

 very fine, rather sparse, closer and more distinct but not asperate on 

 the elytra, fine though slightly asperate and rather numerous on the 

 abdomen, the vestiture somewhat sparse and suberect but inconspicuous; 

 head well developed, wider than long, the eyes moderately prominent, 

 at their own length from the base, the tempora equally prominent; 



