NORTH OF MEXICO. 



355 



B. in oe si us, Mels., Proo. Acad., ;i, 85. 



Found in the Northern and Middle States. 



B. i> u 1 v e i- u 1 1", u 1, u s, Mann., Beitrag, 270 ; califomicus Motscli. Bull., Mosc, 1845, p. 77. 



The species of Motschulsky is very badly described but it is doubtless the same as 

 that described by Maimerheim. 



Both this and the preceding .species are deep shining black and have but few black 

 hairs very sparsely scattered over the elytra., rarely seen except when the specimen is 

 fresh. This species has also, when recent, a coating of whitish efflorescence previously 

 mentioned among the species of Trimytis. Moestus and pulverulentus are closely related 

 and differ only in the base of the thorax of the former being more strongly sinuous and 

 the bind angles rather more prominent than the middle lobe of the base. Both are 

 nearly equal in size. 



Length .20-.23 inch. 



Occurs abundantly everywhere in California. 



IS. interruptus, Say, (Opatrum) Jouin. Acad. 8, 364 ; luridus, Muls., Opuao. Entom. Oah. 0, p. 129. 



This species is separated from the synonymy in which it has been placed on account 

 of the permanence of certain characters in a considerable series of specimens. The elytra- 

 are here black, very rarely with any metallic tinge. The thorax is densely and coarsely 

 punctured, less shining than in mettillic/m. The species is larger, broader and more convex. 



Length .22 inch. 



Abundant in the Northern States and Canada, 



B. metallicus, Fab. (Maps), El. 1, 148; Beauv. Ins. p. 187, tab. 80b. fig-. 2, aeneolus, Mels., Proo. Acad.;!, 08. 



Smaller than interrv/ptvs and more distinctly metallic. The thorax is finely and 

 sparsely punctured and shining. The punctures of the elytra are very large and cause 

 them to appear very rugose. In both species there is a depression of the base of the 

 thorax opposite the fourth interspace, more evident in metallicus. 



Length .18-.20 inch. 



Abundant with the preceding. 







NOTIBITJS, Leo. 



Notibius, Leo., Ann. Lye. V., 145. 



Differs from Blapstinus in having the upper portion of the eyes smaller and rounder, 

 the intercoxal process of the abdomen quadrangular and truncate, and the scutellum very 

 transverse, scarcely visible between the elytra. Presternum, more or less prolonged 

 behind the coxa 1 , mesosternum correspondingly concave ; metasternum short, body 

 apterous. 



