255 



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

 ])ehind it, and the third reaching not quite to jiosterior third of space. Disk of 

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

 Tegmina and wings of equal length extending, when 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 apex being evenly rounded; edges of tegmina 

 not meeting when at rest at base, in the 9 , "«Jut overlai)ping beyond basal third. Hind 

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

 passing it ( (^ ) ; the anterior and middle femora but slightly enlarged in the ^ ; ]iiiul 

 tibia' rather slender, quite hirsute, and with the spines long, regular and sharp. End of 

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

 triangular, .with very i)rouounced dejiressions, 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 emargination of the upper pair slightly serrate. Prosternal spines stout, 

 short, pyramidal, and directed but slightly backward. 



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

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

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

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

 near to some southern or subtropical forms like Ehomalea. 



Dendrotettix longipennis n. sp. — General color testaceous with slight olivaceous 

 hue, varied with faint yellow and piceous bauds 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 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 walls even on the outside ; the apex 

 black, preceded by a rather wide and very distinct lemon-yellow annulus; hind tibije 

 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 ; 

 auteuuie fuscous, olivaceous towards tip. Venter gamboge-yellow. 



Average length ^ 25™"", 9 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 $ 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 injuring 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. II. S. 

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

 quotes this account entire under the name Dendrotettix qiiercus Riley 

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

 fore the Association of Economic Entomologists {Ccoi. Ent.^ vol. xxiii, 

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



