Coleopterous Fauna of Lower Rio Grande Valley. 79 
more or less straight from body and nearly or quite full length, and 
antennae trained straight backward longitudinally over the body. In this 
position the insect much resembles a small dusky spider, the whitish 
parts o^ the legs looking like similarly colored parts of a spider. Besides 
this, the insect looks so nearly the color of the twig that it is almost 
invisible, as it keeps perfectly motionless. Distr. Canada, Michigan, 
Wisconsin, Iowa, New York to Florida, Louisiana, Kansas, Texas, and 
Mexico. 
317. Ecyrus fasciatus , Hamilton. — Three specimens beaten from 
Celtis , at Rock’s Resaca, June 26th, a pair being in coitu. This species 
resembles bird-dung with its gray-wood color and whitish creamy patches 
across body at junction of elytra and thorax and on ends of elytra. Distr. 
Known only from the Lower Rio Grande region. Belongs to the tropical 
fauna. 
318. Desmiphora mexicana Thom. — One taken by Wickham in July. 
Det. Wick. Distr. Gahan gives D. mexicana , Thom., as a synonym of 
D. hirticollis, Oliv., which species extends from Brazil to Venezuela, Col- 
ombia, Central America, St. Vincent, Grenada and Cuba. D. mexicana 
is, however, considered a valid species, its range being Southern Texas 
and Mexico. 
319. Oncideres pustulatus , Lee. — One taken by Wickham in palmetto 
jungle, at Santo Tomas, June 30th, where many branches of Leucaena 
pulverulenta were found girdled, one such branch being nearly one and 
one-half inches in diameter. Let. Wick. Distr. Arizona to Southern 
Texas, Mexico, and Jamaica. 
320. Oncideres cingulatus, Say. — Girdling branches of mesquite at 
Reynosa, Tamaulipas, May 16th. Green branches from ten to fifteen 
mm. in diameter had been girdled. The girdler was found resting above 
the girdled portion on a branch that still held, its anterior two pairs of 
legs being grasped around the branch. Determined by Schwarz as 0. 
putatori Thom., which is given by Hamilton as a synonym of 0. cingula- 
tus. Distr. Middle States, New York, New Jersey, and Pennsylvania 
to Louisiana, Texas, Arizona, and Mexico. 
321. Oncideres texana , Horn. — Chocoy, Tamaulipas, October 15th. 
Girdling branches of Acacia. This is mentioned as 0. putator in Bull. 
Techn. Ser. No. 4, Div. Ent. U. S. Dept. Agric., p. 16. Distr. Kansas 
to Texas and Tamaulipas. 
322. Aporataxia lineata , Hamilton. — Four beaten from tangles of 
Clematis drummondii in palmetto jungle at Santo Tomas, at Rock’s 
Resaca and near Brownsville Ferry, June 16th to 28th. Distr. The 
genus and species are known only from the Lower Rio Grande region, and 
belong to the tropical fauna. 
323. Ataxia crypta , Say. — One, at light, June 11th. One beaten from 
