OMOPHRONIDyE. HALIPLID.E. 65 



XXXII. Genus OMOPHRON. Lat. 



(92) 1. * Omophron Sail Says Omophron. 



O. ( Saii J nigra; fronte antennis, pedibus, elytrisque fasciis duabus angulato-undulatis apiceque, testaceis ; labro, prothoracis 



lateribus, elytrisque margine laterali, argenteis. 

 Say's Omophron, black ; front, antenna?, legs, two angulato-undulated bands and apex of the elytra, testaceous ; upper-lip, 



sides of the prothorax, and lateral margin of the elytra, silvery. 



Length of the body 3^- lines. 



Taken by Dr. Bigsby in Canada. 



DESCRIPTION. 



This species seems intermediate between O. limbatum and O. labiatum. From the former it 

 differs in having a much fainter tint of green on the darker parts of the body ; in its black protho- 

 rax with silvery sides as well as margin. From the latter in having the lateral furrows as deep and 

 distinctly punctured as those of the disk ; and, instead of two reddish spots near the base of the 

 elytra, having two angulato-undulated bands, one near the base and the other beyond the middle, 

 and the tips, testaceous; all connected by the margin of the same colour. It seems to have 

 escaped the describers of O. limbatum that the upper-lip and lateral margin of the prothorax and 

 elytra are likewise silvery, though not so conspicuously as in O. labiatum and Saii. 



The sculpture of the elytra in this genus, as well as in Calosoma, differs from that of the other 

 terrestrial predaceous beetles in having more than nine furrows, which appears to be the typical 

 number in the section. 



iii. Hydradephaga. Mac L. 

 a. Eunecha. Kirb. 



Family HALIPLIDiE. Haliplidans. 



XXXIII. Genus HALIPLUS. Lat. 



(93) 1. Haliplus impressus. Impressed Haliplus. 



Haliplus impressus. Lat. Gen. i, 234, 2, t. vi, f. 6? N. D. D'H. N. xiv, 156. Gyll. Ins. Suec. i, 547, 3. Steph. 



IUustr. Mandib. ii, 39, 2? 

 Dytiscus impressus. Fab. Syst. Eleuth. i, 271, 71. Payk. Fn. Suec. i, 235, 49. Oliv. Ent. iii, 40, 32, 42, t. iv, /. 40. 



Illig. Kaf. Preuss. i, 260, 30. Panz. Fn. Germ, xiv, t. 7. Thunb. 7ns. Suec. vi, 77. Schneid. Mag. 367. Goeze 



Eur. Fn. viii, 745, 7. Brahm. Ins. Kal. i, 23, 82. 



■ laminatus. Schall. Hall, i, 314. 



flavicollis. Marsh. Ent. Brit, i, 430, 47. 



Length of the body H lines, nearly. 



One specimen taken in Lat. 65°. 



K 



