NOKTH AMERICAN COLEOPTERA. 47 



to base, disc sparsely indistiuiitly punctate; scutelluni smooth. Elytra a little 

 wider at base than the thorax, sides nearly parallel, arcuately narrowed at apical 

 third, disc with obtuse costse, arranged as follows: the outer and more distinct 

 starts at the umbone and continues parallel with the side margin sometimes 

 reaching the apex, a second parallel with the suture from the middle of the base 

 does not reach the apex ; between these two a shorter oblique costa beginning 

 at the umbone, the entire surface closely punctate, but less densely at the base. 

 Body beneath smooth, abdomen sparsely finely punctate and finely cinereo-pu- 

 bescent at the sides. Length .27 inch. ; 7 mm. 



This species varies in a manner similar to variabilis and Candezei, 

 and may be eitlier entirely black, or with the head and thorax red, 

 some of the latter having a blackish head. 



The males have the last ventral segment emarginate and with a 

 slight depression, on each side of which is a slight pubescence. The 

 costfe are rather less distinct in the males. 



This species seems closely related to the two above mentioned, but 

 in both the elytra are scarcely punctate, and in variabilis the head 

 and thorax are densely punctate. 



Occurs in New Mexico and Arizona. 



Mr. Jacoby (Biol. Cent.- Am. vi, pt. 1, sui)})l. p. 3, pi. xxxv, fig. G) 

 credits another species, A. Hoegel, to our fauna from Vancouver 

 Island, but as all his other localities are from Jalapa and other points 

 in southern Mexico, 1 think it can be disregarded until further evi- 

 dence of its existence so far north is observed. It is nearly of the 

 form of purjmrea, with less transverse thorax, color reddish yellow, 

 with the antennae, knees, tibiae and tarsi black. Elytra sparsely in- 

 distinctly punctate, with the lateral costa alone distinct. 



]¥OTOXlIS GeoflT. 

 IV. Schwarzi n. sp. — Piceous, feebly shining, thorax pale brown, anteniia- 

 and legs testaceous. Head densely punctate, sparsely pubescent. Thorax mod- 

 erately closely punctate, sparsely clothed with silken white pubescence and a few 

 erect hairs, the thoracic horn nearly twice as long as wide, narrowly margined 

 and not serrate, the crest acutely margined and not serrate. Elytra rather finely 

 and closely punctate, clothed with silken-while pubescence and a few semi-erect 

 hairs, each elytron with an oblique brownish band behind the middle, these 

 separated at the suture. Body beneath densely punctured, finely pubescent. 

 Length .10 inch. ; 2.5 mm. 



In the male the anterior tibiie have an angulation at the middle 

 of the inner side, not amounting to a tooth. The last ventral seg- 

 ment is not foveate. The apices of the elytra obtusely rounded. 



This species resembles blcolor in facies, but is smaller and with a 

 non-serrate horn. The color of the elytra, with the oblique fascia, 

 will readily distinguish it from any in our fauna. 



TKANS. AM. ENT. SOU. XIX. MAKCH, 1892. 



