92 PROCEEDINGS OF THE NATIONAL MUSEUM. VOL.XX. 



case attingent at the base, at least in the female, in macropterous forms 

 of exceptional breadth, especially in the distal half, broadly rounded 

 apically, in micropterous forms no longer than the pronotum, well 

 rounded apically. 1 Fore arid middle femora a little tumid in the male; 

 hind femora not very long iior stout, subcompressed ; hind tibiae with 

 nine to eleven, usually ten, spines in the outer series; aroliuin of un- 

 usual size. Extremity of the male abdomen not clavate, but upturned 

 and bluntly rounded, the lateral margins of the subgeuital plate 

 strongly ainpliate at the base, the plate itself of unequal and of narrow 

 breadth, well rounded apically; cerci short, a little torqueate, apically 

 depressed; furcula obscure; ovipositor normally exserted. 



A single species occurs from Illinois to Texas, a tree-inhabiting 

 species, living upon oaks. 



DENDROTETTIX QUERCUS. 



(Plate VII, fig. 2.) 



Dendrotettix quercua RILEY !, Proc. Ent. Soc. Wash., I (1888), p. 86 [undescribed]. 

 PACKARD, Rep. U. S. Ent. Comm., V (1890), pp. 214-215 [descriptions of 

 immature forms only]. BRUNER, Publ. Nebr. Acad. Sc., Ill (1893), p. 28 

 [name only] . 



Dendrotettix Jongipennia RILEY MS. fide BRUNER!, Can. Eut., XXIII (1891), pp. 

 191-192 [undescribed]. BRUNER, Ins. Life, IV (1891), p. 20 [undescribed] ; 

 Bull. Div. Eut. U. S. Dep. Agric., XXVII (1892), p. 33 [uudescribed]. RILEY !, 

 Ins. Life, V (1893), p. 255 [first description]. BRUNER!, Bull. Div. Ent. U. S. 

 Dep. Agric., XXVIII (1893), p. 14-15, fig. 4. 



DendrotettixlongipennisvaT. quercua RILEY!, Ins. Life,V(1893), p.256 [undescribed]. 



\_Post-oalc locust, BRUNER, Bull. Div. Ent. U. S. Dep. Agric., XIII (1887), pp. 17-19.] 



Body flavous and navo-testaceous, marked with piceous. Head, 

 excepting summit, flavous, more or less infuscated or clouded with 

 olivaceo-fuscous, the summit brownish testaceous, with very variable 

 blackish markings, sometimes consisting of a median posterior dash, 

 sometimes of a pair of divergent stripes, sometimes longitudinally 

 combed with black; there is a broad and greatly widening black stripe 

 behind the whole eye; front of fastigium very broadly sulcate; frontal 

 costa and whole face very sparsely punctate, the former broadly sulcate 

 as far down as and including the ocellus; antennae flavous, sometimes a 

 little infuscated. Pronoturn navo-testaceous above, the metazona dis- 

 tinctly olivaceous, the median carina heavily marked in black; upper 

 half or rather more of the lateral lobes with a piceous band, occasion- 

 ally obsolescent on the metazona, and often distinct only at its upper 

 and lower margins, especially the former, the- remainder flavous; abdo- 

 men banded with black along the sides. Tegmina lighter or darker 



'In the United States National Museum there is a single female from Texas in 

 which the tegmina extend a little more than halfway to the tip of the abdomen and 

 are of a very ditferent shape, the basal third gradually and normally broadening, 

 but beyond tapering rather rapidly, so that the rounded tip is narrower than the 

 base; it looks like an abnormal development. 



