156 HETEROMERA. 
Six examples. This species may be known at once by its short broad form, the 
epipleure not reaching the apex of the elytra, the long and thin tibie, and male 
characters ; it is probably generically distinct from Uloma. ) 
I found this species under the bark of pines, at a great elevation at Totonicapam, 
also singly at Purula. A well-developed male from Guatemala city is figured. 
CYN AUS. : 
Cyneus, Leconte, Class. Col. N. A. p. 288; Horn, Rev. Ten. of Am. north of Mexico, p. 369. 
Two species are known of this genus, both from Southern California ; we now add a 
third species from our northern boundary. 
1. Cynzus opacus. 
Elongate ovate, depressed, dull ferruginous, not shining. Head very closely and finely punctured; prothorax | 
transverse, widest about the middle, about equally narrowing at base and apex, the apex broadly but not 
deeply emarginate, the base very feebly bisinuate, subtruncate, the surface rather coarsely and somewhat 
closely punctured ; elytra a little wider than the prothorax at the base, regularly punctate-striate, the 
punctures rounded and not very closely placed, the interstices feebly convex and very closely and finely 
punctured. 
Length 53-67 millim. 
Hab. Muxico, Northern Sonora (Morrison). 
Many examples received from the late Mr. Morrison as Aphanotus brevicornis. A 
dull, depressed species, with the entire upper surface very closely punctured. Flatter 
and duller than C. angustus, the elytral strize more regularly impressed, the interstices 
feebly convex, the thorax less emarginate in front, the upper surface more closely 
punctured; also allied, but more distantly, to C. depressus, but, judging from the 
description of that species, quite distinct. 
ALPHITOBIUS. 
Alphitobius, Stephens, Il. Brit, v. p. 11 (1832). 
A cosmopolitan genus consisting of a few species, at the expense of which numerous 
others have been described. 
1. Alphitobius diaperinus. 
Tenebrio diaperinus, Panz. Fn. Ins. Germ. xxxvii. p. 16 (1797). 
Hab. Mexico (coll. F. Bates), Puebla, Vera Cruz, Guanajuato (Sal/é).—EuRopt ; 
Nortu AMERICA, &c. 
2, Alphitobius piceus. 
Helops piceus, Oliv. Ent. iti, 58, p. 17, t. 2. figg. 18 a, 6 (1795). 
Hab. Mexico, Yucatan (coll. F. Bates), Guajuco in Nuevo Leon, San Pedro in Coa- 
