Coleopterous Fauna of Lower Rio Grande Valley. 95 
468. Apion xanthoxyli , Fall. — Bred in numbers from seeds of Xan- 
thoxylum pterota , issuing July 4th. Also bred from same seeds at San 
Diego, Texas, by Schwarz. Distr. Known only from this region. The 
species belongs to a Neotropical type, represented by A. gibbosum , Sharp, 
of Tropical Mexico. 
469. Macrops, sp, — Two at light, June 10th and 11th. A small gray 
species. Distr. Known only from this region. 
470. Lixus , sp. — Three specimens, including a pair in copnla, taken 
on tall weeds, June 23rd. Distr. Known only from this region, but 
doubtless occurs in Mexico. 
471. Bmicronyx, sp. — On stalks of Lantana camara, April 29th; 
beaten in palmetto thickets and woods, June 16th to 26th. Length, one 
and four-fifths mm. Legs and npperside light brownish, underside with 
a leaden gray or whitish pubescence. Head, upper (onter) side of legs, 
scntellnm and short median streak behind latter whitish gray pubescent. 
The brown of npperside somewhat mottled. Distr. Known only from 
this region. 
472. Endalus aeratus , Lee. — Two specimens taken on Abutilon , sp., 
and another plant, June 5th. Distr. Missouri to Southern Texas. 
Leconte records a species near aeratus collected by Schwarz in the Transi- 
tion of Colorado. 
473. Bagous bituberosus , Lee. — One at light, March 19th. Distr . 
District of Columbia to Florida, Louisiana, Kansas, and Southern Texas. 
474. Otidocephalus, sp. — One specimen taken at La Puerta, Tamau- 
lipas, May 6th. Length, four and two-fifths mm. Color, entirely shin- 
ing black, except a line or rim of white along side of body running from 
head to anus and following outer border of elytra. Form spider-like, the 
abdomen being long oval and elytra constricted on sides and above at 
junction with prothorax. Latter with head forms a narrower elongate 
oval outline, but nearly same width before and behind. Body thinly 
white hairy below, and posteriorly so above, the rest of upper portion 
being black hairy. Distr. This is a species new to the United States 
fauna. It doubtless occurs through Tropical Mexico. The genus is a 
southern one. Specimens of a larger species of this genus, with the same 
facies as the present form, have been taken by me in the States of Vera 
Cruz and Tabasco. 
475. Anthonomus grand, is. Boh. — Very common in the cotton fields 
throughout the season, breeding in the squares and bolls. Distr. Yuca- 
tan and Tabasco through Vera Cruz and Tamaulipas to Southern Texas, 
lower portions of the Mexican tableland, and the Pacific coast of Tropi- 
cal Mexico. 
476. Anthonomus ligatus , Dietz. — Rather numerously beaten from 
clumps of Koeberlinia spinosa in openings in the woods back of Fort 
