HETEROMERA. 509 
Texas, but differing from it in the elytra having regular series of fine spicule. The 
punctuation of the thorax is variable, but the sides are always distinctly punctate. 
EUSATTUS (p. 74). 
Kusattus brevis (p. 75). 
To the Mexican locality given, add :—Zacatecas city, Las Vigas (Hége). 
The flanks of the prothorax and the elytral epipleure are slightly hairy in this 
species, the latter being gradually widened to the base ; the prosternum is not margined 
at the apex. 
5. Kusattus erosus. 
Eusattus erosus, Horn, Rev. Ten. of Am. north of Mex. p. 294, t. 15. fig. 21°; Trans. Am. Ent. 
Soc. x. p. 304”. 
Hab. Norra America, Lower California 1.—Mexico, Villa Lerdo in Durango (Hoge). 
6. Eusattus reticulatus. 
Zophosis reticulata, Say, Journ. Acad. Phil. iii. p. 250 (1824) 1; Complete Writings, ii. p. 147°. 
Discodemus reticulatus, Lec. Class. Col. N. Am. p. 223 (1862) °. 
Eusattus reticulatus, Horn, Rev. Ten. of Am. north of Mex. p. 293*; Trans. Am. Ent. Soc. x. 
p. 304°, 
Hab. Nortu America !, Kansas, Colorado, New Mexico, and Arizona 4.—MExico, Paso 
del Norte, Chihuahua city (Hége). 
Sent in plenty from Paso del Norte. 
7. Kusattus venosus. 
Oblong-oval, broad, convex, dull black, almost glabrous. Head very sparsely, finely punctate, trisinuate in 
front, the anterior margin slightly reflexed; prothorax very minutely, sparsely punctate, the punctuation 
more distinct at the sides; elytra slightly narrowed anteriorly, in some specimens subparallel towards the 
base, very obtuse behind, each with a marginal carina extending nearly to the apex and two raised lines 
on the disc, the interspaces finely, transversely reticulate and with shallow rather coarse punctures which 
are here and there confluent; epipleure slightly widened at the base, smooth, glabrous; prosternum 
very broad, convex, moderately produced, immarginate at the tip; anterior tibiee greatly produced at their 
outer apical angle. 
Length 11-123, breadth 73-83 millim. 
Hab. Mexico, Zapotlan in Colima, Guadalajara in Jalisco (Hége). 
Numerous examples from both localities. Closely allied to £. reticulatus, but sepa- 
rable from that insect by its more parallel, less inflated shape, different elytral sculpture, 
and the shorter, broader, and more convex prosternal process. The depressions on the 
elytra are usually filled with adherent earthy matter. 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 1, November 1892. 3UU 
