54 



head, of which there is no trace in O. suror::t)///s, t'.ic ridges i)f die \crtex 

 of the latter are more elevated, the prothorax is larger in proportion and 

 much rougher, with larger and more numerous granules, and the four teeth 

 of the cubit, which in the former are long and acTitc. in the latter are 

 shorter and obtuse. 



176. Trox ARENARIUS Fa^r. -l.cn^th of body 3 linos. I'aken by 

 Capt. Hall in Nova Scotia. 



[127.] Body oblong, black, witliout any gloss. liead 'overod with 

 cinereous varioles ; nose a little reflexed, rounded with a slight tendency 

 to be obtusanguiar ; antennae ferniginous ; prothonix with a wide rather 

 obsolete dorsal channel ; sides with two impressions, one near the anterior 

 angle, and the other basilar in the disk ; base lobed ; lateral margin fringed 

 with ferruginous bristles : elytra slightly furrowed, interstices with each a 

 series of elevations crowned with brown bristles, the ele\ations of the 

 alternate series are minute ; anterior tibiae with three acute teeth, they ure 

 also serated at the base. [An European species, not found in Canada, j 



177. Pelidnota punctata Linn. — Taken by Dr. liigsby in Canada, 

 near Lake St. Clair. [Abundant, and often very injurious to the foliage 

 of the grape-vine throughout the Western peninsula of Ontiirio ; it does 

 not occur, however, as far east as Toronto. For description and illus- 

 trations, see " First Report on the Noxious Insects of Ontario," Saun- 

 ders's Report, page 106 ; or Harris's '• Insects injurious to Vegetation,'" 

 p. 25 ; Fitch, Riley, Packard, etc.] 



[129.] 178. Camptorkina atracapilla Kirby. — Length of body 

 5 ^ lines. Taken in Canada by Dr. Bigsby, and in Nova Scotia by Capt. 

 Hall. [Synonymous with Serica vespertina Schonh., a species taken com- 

 monly throughout Ontario, and, according to Dr. Le Conte. in the Middle, 

 Southern, Eastern and Western States, as far as Lake Superior. For 

 description zvV/^ Say's Ent. Works, ii., p. 143.] 



Genus Diplotaxis Kirby. — Labnrni transverse, lanceolate, anteriorly 

 emarginate. Mandibles very short, trigonal, incurved, truncated and con- 

 cavo-convex at the japex ; molary space small, irregular, ( hannelled ? 

 Maxilloe very short, incurved, incrassated at the base ; apex armed with 

 three short, stout, conical teeth. Labiiun very short, transverse, entire, 

 separated by a faint line from the mentum. Mentum quadrangular, rather 

 wider than long. Palpi maxillary four-jointed, very minute, cylindrical ; 

 second and third joints thicker, equal in length, obconical ; last thickest 

 and longest, lanceolate-ovate, acute. Palpi labial three-jointed ; first joint 

 obconical ; second subcylindrical ; third nearly as long as the other two, 

 but scarcely thicker, conical. Antennae ten-jointed : scape elongate- 



