THE CONCHUELA. 25 
locality in Texas from which the writer has seen a specimen of the 
species. West of the ninety-eighth degree of longitude specimens 
have been collected at the following points and elevations in the 
State of Texas: San Diego, 300 feet; Abilene, 1,700 feet; Barstow, 
2,500 feet; Llano, 1,000 feet; San Angelo, 1,800 feet; San Antonio, 
675 feet; Clarendon, 2,700 feet. The known Mexican localities 
where the species has been collected, with their elevations, are: San 
Pedro de la Colonia, Coahuila, 3,600 feet; Tlahualilo, Durango, 3,700 
feet. 
FOOD PLANTS. 
Like most other plant-feeding Pentatomids whose habits are 
known, the conchuela has a wide range of food plants and shows a 
decided preference for fruits and seeds. In Texas and Mexico its 
principal food in uncultivated regions is the bean of the mesquite 
(Prosopis sp.) and the berry of a common wild solarium (Solarium 
elseagnifolium), known among the natives of Mexico as "trompillo." 
Of these two the former seems to be preferred according to observa- 
tions in northern Mexico where the two food plants grow together on 
the arid plateaus. Records of other wild food plants of the species, 
with the observer and locality, are as follows: Spanish bayonet or 
bear grass (Yucca sp.), Barstow, Tex., J. C. Crawford; wild currant 
(Riles sp.), San Antonio, Tex., W. E. Hinds and J. C. Crawford; 
sage, Clarendon, Tex., W. D. Pierce. Records of cultivated food 
plants, with the observer and locality, are as follows: Cotton, 
alfalfa, grapes, corn, chilli pepper, and tomato, Tlahualilo, Durango, 
Mexico, A. W. Morrill; peaches, Barstow, Tex., J. C. Crawford; cot- 
ton, grapes, Milo maize, sorghum, alfalfa, peas, tomato, Barstow, 
Tex., Crawford and Morrill. The fact that in 1905, at Barstow, 
Tex., the conchuela attacked several of these crops in sufficient 
numbers to cause considerable damage has been referred to under 
the subject of the history of the species. The range of food plants 
which has been recorded points to the likelihood that this insect may 
use as a food plant almost any of our cultivated grains, fruits, and 
vegetables which circumstances may place in the way. 
DESCRIPTION. 
ADULTS. 
(PI. I. fig. I; text fig. 1.) 
This species belongs to the subgenus Chlorochra Stal, and in com- 
mon with certain other members of this group exhibits a wide varia- 
tion in color. The general color is usually dull olivaceous, frequently 
either grayish, pinkish, purplish, or greenish, and occasionally black 
or brown. The punctures are black or dark gray. The species is 
most strikingly characterized by its general dark color, with the 
