Coleopterous Fauna of Lower Rio Grande Valley. 77 
metto jungle at Santo Tomas, June 16th. Also taken by Schwarz. 
Distr. This is a distinctively Neotropical genus, now just recorded for 
the United States lists. The species is known only from the Lower Rio 
Grande region, and belongs to the tropical fauna. 
298. Ibidion exclamationis , Thoms. — Two specimens beaten from 
shrubs in woods near Rock’s Resaca, June 25th. The species was also 
taken by Wickham in July. Distr. This species has been previously 
recorded only from Almalonga, Mexico, and is thus new to the United 
States lists. It belongs to .the tropical fauna. 
299. Ibidion townsendi , Linell. — Two male specimens beaten from 
vine tangles in palmetto .jungle at Santo Tomas, June 9th and 23rd. 
Distr. Known only from the Lower Rio Grande region. The genus 
Ibidion is distinctively Neoptropical, and is now just recorded as occur- 
ring within the limits of the United States. 
300. Phyton 'pallidum , Say. — Bred numerously from dead twigs and 
branches of fig, issuing from March 12th to April 21st, as follows : 
March 12th, 1 ; March 25th, 2 ; March 30th, 4 ; April 7th, 5 ; April 21st, 4. 
Numbers beaten from foliage in palmetto thicket at Santo Tomas, June 
9th; and further specimens at light, June 11th. Distr. Atlantic to Cen- 
tral States, Texas, and Mexico. 
301. Obrium mozinnae , Linell. — Beaten from bushes, of Mozinna 
spatulata , and taken in flowers of same, June 5th. Also' taken by Schwarz 
on same bush, June 5th. Distr. Known only from the Lower Rio 
Grande region. 
302. Rhopalophora laevicollis , Lee. — One specimen taken at Fort 
Ringgold, on Prosopis juliflora, May 12th. One beaten from Celtis. at 
Rock’s Resaca, June 26th. Also taken by Wickham in July. Distr. 
Southern New Mexico to Southern Texas and Mexico. 
303. Dendrobias mandibular is, Serv. — An elytron of this species was 
found in May, in town. Distr. Lower California and Southern Arizona 
to Southern Texas and Mexico. This species was taken by me near 
Chocoy, Tamaulipas, October 15, 1894. 
304. Sphaenothecus suturalis , Lee. — One specimen taken on Prosopis 
juliflora branch, near fresh exit to burrow, from which it had evidently 
just emerged, at Yucca Ridges, July 9th. Distr. Southern Arizona 
(Tucson) and Southern New Mexico (Mesilla Valley, Deming) to Texas 
and Tamaulipas. It is found on mesquite in New Mexico; a pair was 
taken by me in copula on that plant, in the Mesilla Valley, July 8th. 
305. Ischnocnemis bivittatus, Dup. — Two males issued from dead 
fig twigs, April 2nd and 7th. Five males and two females on mesquite 
flowers, April 9th, two pairs being in coitu. One female issued from fig 
twigs, April 12th. Distr. Southern Arizona to Southern Texas and 
Mexico. 
