THE DIFFERENTIAL LOCUST. 
19 
LACHN08TEBNA FARCTA Lee. 
Thi> species has been reported as injuring cotton in southwest Texas 
by planters in Uvalde County, when* it is occasionally quite abundant 
on young plants. According to previous accounts," the feeding habits 
of the beetle- seem to be much the same as those of Lachnoxterna crth- 
rosa Lee November 8. 1895, Mr. E. A. Schwarz sent from Beeville, 
Tex., a Larva of this species taken in a cotton field. Another larva. 
received from him from San Diego on December 14. was placed upon 
grass roots and was still active the following April. It was then given 
fresh sod and remained alive until September. In the Report of the 
Commissioner of Agriculture for 1879 Professor Comstock mentions 
an outbreak of this species on beans in Bexar County. Tex. The feed- 
ing habits of the beetles as described by him are similar to those of L. 
cribrosd. 
It should be noted that the larvae of none of these species of "May 
beetles" have been observed in injurious number- and that very little 
is known of their habit-. 
THE DIFFERENTIAL LOCUST. 
Melanoplus differentialis Thus. Fi^s. 8, m. 10. and IE | 
More or less injury is done by this locust every year in some locality 
in Texas. In the spring of 1904 an exceptional outbreak occurred in 
JNB 
Fig. $.— Melanoplus differentialis: adult— enlarged • author's illu-tration). 
the south-central part of the State, alone- the Brazos River and its 
tributaries, being especially injurious in Grimes. Waller. Washington, 
Lee. Brazos, and Burleson counties. 
Owing to the very careful studies of the habits of this species made 
by Prof. II. A. Morgan in Mississippi in 1899 and 1900, 6 it did not 
seem necessary to devote much attention to that subject. Therefore. 
although a few observations on the life history are noted below, we 
were chiefly concerned in finding the most feasible mean- of combating 
the young hoppers over large areas. 
The eggs commenced hatching about the middle of March, 1904. and 
young nymph- continued to appear for about three week-, the majority 
"L. «•.. p. 107: and l^so: Rept. Comm. Agric. f. 1879, \>. 247. 
&1901: Bui. .".(». n. s.. Div. Km.. I*. S. Dept Agric., pp. 7-27, L2 figs 
