14 
FIG. i. —Dendrotettix longipennis — natural size (original). 
THE LONG- WINGED FOREST LOCUST. 
(Dendrotettix longipennis Riley.) 
This particular species is the one mentioned in Bulletin 13 of the Divi- 
sion of Entomology, U. S. Department of Agriculture, as the Post-oak 
Locust. I quote Prof. Riley's specific description of the insect : 
Dendrotettix longipennis Riley.— General color testaceous with slight olivaceous 
hue, varied with faint yellow and piceous bands and lines; face dull olivaceous 
brown; occiput, especially back of the eyes, darker. Pronotum olivaceous with 
more or less yellow; median carina and the transverse impressed lines on the lateral 
bands piceous. generally darkest 
and most continuous in the ^ . 
Tegmina dull olivaceous brown, 
the veins being testaceous and 
giving the basal half a decidedly 
lighter coloring. Wings rather 
dark, becoming somewhat pel- 
lucid near their base, the veins 
dusky, especially on their apical 
half. Posterior femora with their 
outer face dull olivaceous and marked with brown and black along their upper edges 
and crossing to the inner surface, which, with the lower sulcus, is bright sanguin- 
eous, this coloring showing through the somewhat transparent walls even on the 
outside; the apex black, preceded by a rather wide and very distinct lemon-yellow 
annulus; hind tibia' with a wide post-basal annulus of the same bright color; an- 
terior and middle legs, also the tarsi of the hind legs gamboge-yellow, with the 
spines and claws black; antennae fuscous, olivaceous towards tip. Venter gamboge- 
yellow. 
Average length $ 25 mm , 9 30 mui . 
The short-winged forms agree in all other respects except that, as is the case with 
other genera, the tegmina do not ordinarily extend much beyond the second abdom- 
inal joint, and may be either perfectly rounded or slightly twisted at the apex. In 
some cases, however, they extend to one-half the length of the abdomen. 
Described from 2 $ $ and 3 9 9 of the long-winged form, and 4 / $ and 7 9 9 of 
the short-winged form. Received from E. H. Hill, Manor, Travis County, Tex., July 
13, 1887, as injuring post oaks, and collected by Mr. Bruner. 
The Long- winged Forest Locust or " Post-oak Locust' 7 of Texas, as 
the name would imply, is also an arboreal insect. It is shown in the 
accompanying illustration (Fig. 4). 
This locust was first noticed by the inhabitants of Washington 
County, Tex., about the year 1885, when it attracted their attention by 
defoliating the post-oak trees over a considerable extent of territory 
lying to the eastward of the town of Brenham. In the spring of the 
following year I had the privilege of studying the species to some ex- 
tent while visiting the region to examine into a local outbreak of an- 
other locust that threatened the cotton and corn crops. The following 
in reference to its habits and mode of life i copy from a report made at 
the time : * 
"The egg pods are deposited in the ground about the bases of trees 
or indifferently scattered about the surface among the decaying leaves, 
Bull. No. 13, U. S. Dept. of Agriculture, Division of Entomology. 
