62 Mr. G. C. Champion’s Notes on 
TENEBRIONIDAE. 
Corticeus sordidus. Guatemala. 
tLorelus curvipes. Guatemala. 
"4,  curtecollis. Mexico, ete. 
»  breviusculus. Panama. 
»  angustulus. Guatemala. 
»  exths. Guatemala. 
[- 4° rugefrons. Brazil. 
»  trapeziderus. Guatemala. 
OTHNIIDAE. 
Othnius immaculatus. Mexico. 
»»  planatus. Mexico. 
The genera marked thus (+) are additions to the Central 
American fauna. 
PSEPHENIDAE. 
PSEPHENUS. 
Psephenus, Haldeman, Melsh. Cat. Coleopt. U.S. p. 34 
(1853); Horn, Trans. Am. Ent. Soc. iii, p. 30 
(1870), and x, p. 117, pl. 6, figs. 14, 15 (¢ 9) (1882); 
Leconte, Class. Coleopt. N. Am. Ist edit. p. 115 (1861), 
and 2nd edit. p. 163 (1883); Casey, Ann. N. York 
Acad. Sci. vii, p. 578 (1893). 
Eurypalpus, Leconte, Proc. Acad. Phil. 1852, p. 41. 
Fluvicola, De Kay, Zool. N. York, vi, p. 53 (1844) (larva). 
The four known members of this extraordinary genus, 
the larva of one of which was described as a Crustacean, 
are from the Atlantic and Pacific regions of the United States 
and Lower California.. The species now added from Mexico 
is evidently a near ally of the southern P. haldemani, Horn, 
the types of which are females. 
*Psephenus palpalis, n. sp. (Plate ITI, figs. 1, la, g.) 
6. Oblong-ovate, rather broad, very depressed, shining above, 
closely pubescent; nigro-piceous, a large indeterminate patch on 
the disc of each elytron at the base, the sides of the front, the first 
two joints of the antennae, the under surface in part, the femora, 
and coxae testaceous, the tibiae and tarsi slightly infuscate. Head 
densely, rugulosely punctate, foveate on the vertex, the sides of the 
front raised; maxillary palpi (fig. la) about three-fourths the length 
of the antennae, the fourth joint cultriform; antennae moderately 
