255 



crossing at rather less than one-third of the space, the second more irregular, just 

 behind it, and the third reaching not quite to posterior third of space. Disk of 

 posterior lobe nearly flat and strongly granulate, the lateral angles rather sharp. 

 Tegmina and wings of equal length extending, wlien fully developed, beyond the 

 tip of the abdomen in both sexes, the former rather narrow at the base but broaden- 

 ing especially at their apical half, the ajjex being evenly rounded; edges of tegmina 

 not meeting when at rest at base, in the $ , but overlapping beyond basal third. Hind 

 femora rather slender, not quite reaching the tip of the abdomen ( 9 ) or slightly sur- 

 j>a8sing it ( (?■ ) ; the anterior and middle femora but slightly enlarged in the ^ ; hind 

 til>ia^ rather slender, quite hirsute, and with the spines long, regular and sharp. End of 

 male abdomen not enlarged, but very generally beut upwards ; supra-anal plate sub- 

 triangular, with very pronounced depressions, which leave marginal ridges and a 

 medio-dorsal anteriorly furcate ridge, also a transverse median ridge somewhat 

 arched anteriorly ; anal cerci flat, about twice as long as wide, the apical portion 

 slightly twisted and the apex evenly rounded. Valves of the ovipositor short with 

 the outer emargiuation of the upper pair slightly serrate. Prosterual spines stout, 

 short, pyramidal, and directed but slightly backward. 



The genus is noticeable, as genera are made in the AcridiidcB, by the 

 wide, greatly depressed and broadly silicate vertex, the short and 

 rather broad pronotiiiu, the slender legs and tapering abdomen. These 

 features, together with the rather bright coloring of the species, bring it 

 near to some southern or siibtroi)ical forms like Ehomalea, 



Dendkotettix longipennis u. sp. — 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. Prouotum 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 col- 

 oring. Wings rather dark, becoming somewhat pellucid 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 sanguineous, this color- 

 ing showing through the somewhat transparent w^alls even on the outside ; the apex 

 black, preceded by a rather wide and very distinct lemon-yellow auuulus; hind tibise 

 with a wide post-basal annulus of the same bright color; anterior and middle legs 

 also the tarsi of the hind legs gamboge-yellow, with the spines and claws black; 

 xintennte :^scous, olivaceous towards tip. Venter gamboge-yellow. 



Average length <? 25'"'", $ 30"'"'. 



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 i ^ ^ and 7 9 9 of 

 the short-winged form. Received from Mr. E. H. Hill, Manor, Travis County, Tex., 

 July 13, 1887, as injuriug post oaks; also collected by Mr. Bruner. 



Mr. Bruner gave an account of the habits of this species in 1887, 

 under the name of the Post Oak Locust (Bull. 13, Ent. Div. U. S. 

 Dept. Agric, pp. 17-19), from his observations in Texas. Dr. Packard 

 quotes this account entire under the name DendrotetUx quercus Riley 

 MS. (5th Rep. U. S. Ent. Comm., 1890, pp. 214,215), while in a paper be- 

 fore the Association of Economic Entomologists {Can. Unt, vol. xxiii, 

 p. 191, Sept. 1891, and Insect Life, vol. iv, p. 20, Oct. 1891). Mr. Bruner 



