NORTH AMERICAN COLEOPTERA. 189 



16. CE. lougtlla. Harold. — Elongate oblong, ferruginous, thorax yullow, ob- 

 soletely punctate, with a ferruginous baud ; elytral humeri not sulcate within, 

 roughly rather densely punctate, suture and discoidal vitta ferrugiuous brown. 

 Epipleurse yellow, ferruginous withiu ; anteunse brownish, three basal joints 

 paler, third joint distinctly shorter than the fourth. Length 6.5 mm. 



Baron Hai'old compares this species with umhratica, which is much 

 larger. I have not seen anything in any of our cabinets which can 

 be identified with this species, although I suspect it may be a petau- 

 rista of the more elongate forms in which the submarginal vitta has 

 been lost. A specimen of that species is now before me with the 

 submarginal vitta so narrow that it would readily escape notice. 

 The comparison with umhratica adds a little to the probability of the 

 correctness of my surmise. 



Occurs, according to Harold, in California. This seems to me 

 vei'y doubtful. 



17. CE. Jaeobiaiia u. sp. — Ov^al, slightly oblong, surface shining, beneath 

 entirely pale reddish yellow, thorax yellowish, immaculate, elytra pale brown, 

 with large yellow spots. Antennse not reaching the middle of the body, piceous, 

 the three basal joints aud half the fourth pale, the terminal also yellow. Occiput 

 piceous, front pale, frontal carina moderately prominent, tubercles distinct, a 

 well marked impressed line between the eyes, a few coarse punctures on each 

 side near the eyes. Thorax more than twice as wide as long, narrowed in front, 

 base scarcely wider than middle, margin rather broad, reticulate when viewed 

 with transmitted light, anterior angles dentiform, surface almost absolutely 

 smooth, yellow, immaculate; scutellum piceous. Elytra a little wider at base 

 than the thorax, humeri obtuse, umbone moderately prominent, smooth, limited 

 within by a rather deep impression, lateral margin narrowly explanate, surface 

 shining, sparsely rather finely punctate near base, smooth at apex, color pale 

 brown with large yellow spots, the first basal of irregular outline, leaving the 

 umbone brown, behind this two smaller oval spots, followed by a broad sinuous 

 fascia interrupted by the suture, near the apex a spot of semi-oval form. Ab- 

 domen shining, sparsely, obsoletely, coarsely punctate. Legs entirely reddish 

 yellow. Length .25 inch.; 6.5 mm. Plate V, fig. 16. 



Of this species I have seen but one male. The thorax is similar 

 in form to that of the male of tenuiluieata, and it is probable that 

 in the other sex the thorax is widest at base. It is remarkable that 

 in the two species with this form of thorax in the male the terminal 

 joint of the antenna? should be pale. The latter character, together 

 with the style of elytral ornamentation, will render this species 

 easily known. 



Occurs in southern Arizona. 



