INSECTS OF TIIK CHINCH lU'C FA .Mil A'. 
93 
field near Victoria, Tex., on the night of October 1, 1897,° white Pro- 
fessor Sanderson reports 6 as the maximum number of the bugs col- 
lected at a single trap lantern at Terrell, Tex., in July, 1900. 
Under date of July 7 and August 10, 1898, the Bureau of Ento- 
mology received from Mr. J. D. Mitchell specimens of a Capsid known 
to science by the name of PsaUus delicatus Uhl., which was reported 
to occur on cotton in large numbers at Victoria, Tex., and to be very 
destructive to the young: bolls. 
INSECTS OF THE CHINCH BUG FAMILY (LYG^ID^ INJURIOUS 
TO COTTON. 
The false chinch bug (Nysius angustatus Uhl.) has been reported 
injurious to cotton in Texas and Louisiana by Professor Sanderson, 6 
and in Mississippi by Prof. G. W. Herrick/ The attack of these 
insects is for the most part directed toward the young plants before 
Fig. 23. —The cotton leaf-bug ( Calocoris rapidus): a, Adult; b , young nymph; 
c, fourth instar of nymph; d, fifth instar of nymph. Much enlarged. ^From 
Sanderson.) 
the appearance of the fruit, and the insects should not properly be in- 
cluded in dealing with plant-bugs injurious to cotton bolls. 
Two large Lygands, Oncopeltus fasciatus Dall. and Lygseus tur- 
cicus Fab., were common on cotton at Tlahualilo, Durango, Mexico, in 
July, 1905, and young of both species were found feeding on alfalfa. 
They have been observed to attack both cotton squares and bolls. 
In the collection of cotton insects taken in Texas and surrounding 
States by the agents of the Bureau oi Entomology connected with 
the cotton boll weevil investigations, only the second species is repre- 
sented, although both are of common occurrence in Texas. Milk- 
weeds (Asclepias spp.) seem to be the natural food plants of both 
these species. To illustrate the general appearance o( hugs o( this 
family a specimen of Oncopeltus fasciatus is shown by Plate [.figure 9. 
a Bui. 18, Div. Km., I. S. Dept. Agr., p. 88. 
b Bui. 57, Bur. Ent.,U. S, Dept. Agr., pp. 29 31, L906. 
c 17th Ann. Rep. MiflB. Exp. Sta., p. 31, L904. 
