Coleopterous Fauna of Lower Rio Grande Valley. 93 
448. Gnathium texanum , Horn. — Taken abundantly on flowers of 
Lepachys columnaris pulcherrima, as many as five or six on a flower, near 
Matamoros, Tamanlipas, June 22nd. Distr. Texas and Mexico. 
449. Epicauta callosa , Lee. — One swept at Santo Tomas, June 7th. 
Distr . Montana, Colorado, and Kansas to Texas and Tamaulipas. 
450. Epicauta nigritarsis , Lee. — On flowers of mesquite, April 9th. 
Distr. Known only from Texas. 
451. Pyrota invita, Horn. — One at light, September 16th. Distr. 
Known only from Texas. 
452. Pyrota dubitabilis , Horn. — This species was found swarming by 
hundreds on mesquite near Santa Rosalia (below Brownsville), Texas, 
J une 6th. The beetles were hanging in bunches on the twigs, some flying 
from tree to tree. Probably a couple of dozen mesquite trees ( Prosopis 
juliflora glandulosa) were swarming with them, covering an area of an 
acre or so. They were eating the mesquite leaves ravenously. A solitary 
specimen was found not far from this locality near the palmetto thickets 
three weeks afterwards, June 27th. Distr. Mexico and Southwestern 
Texas. 
453. Cantharis dichroa, Lee. — One specimen, April 9th. Distr. Mex- 
ico and Texas. 
RHYNCHITIDAE. 
454. Rhynchites , sp. — One specimen beaten in woods near Rock’s 
Resaca, June 25th. Entirely black in color. Very small, almost minute. 
Distr. Known only from this region, but doubtless extends into Tropical 
Mexico. Unless recently described in the Biologia C entralP Americana, 
. this is a new species. 
OTIORHYH CHID AE. 
455. Epicaerus mcxicanus, Boh. — Seven specimens beaten from 
Clematis drummondii tangles in palmetto jungle at Santo Tomas, June 
9th to July 2nd. Also taken by Schwarz and Wickham in palmetto 
thicket, on woody vines. Distr. This is a tropical Mexican species, 
reaching the Lower Rio Grande. I have taken it in the States of Vera 
Cruz and Tabasco. 
456. Tanymecus confertus, Gyll. — Eleven specimens beaten from 
vines and foliage in woods near Rock’s Resaca, June 25th and 26th. One 
taken inside fallen cotton square in cotton field near Matamoros, Tamau- 
lipas, September 16th. Distr. Atlantic coast to Nebraska, Kansas. 
Southern Louisiana, Texas, and Mexico. This species was taken numer- 
ously by me in the States of Vera Cruz and Tabasco. 
457. Pandeletejus nubilosus , Boh. — Three specimens doubtfully deter- 
mined as this species were beaten from vines and foliage in palmetto 
