

164 ENTOMOLOGICAL SOCIETY 



the nearest allied species, but in no sense cristate, evenly elevated and cut 

 slightly before the middle; lateral carina distinct, fading anterior to the 

 principal sulcus. Elytra and wings of equal length, considerably surpass 

 ing the posterior femora, the elytra more slender in proportion to their 

 width than usual in members of this genus. Posterior femora broad ba- 

 sally, about equally rounded above and below, not or but little passing the 

 tip of the abdomen in either sex, the carinse well elevated. 



Color dark brown, mottled with fuscous. Head dark brownish, fuscous 

 above, somewhat lighter on the sides and in front and furnished with an 

 obscure postocular band, which, especially in the male, extends across 

 the middle of the eye. Pronotum colored as the head with the inferior 

 border of the lateral lobes lighter. Abdomen light yellowish brown, 

 somewhat infuscated basal ly above. Elytra with the usual fuscous mark 

 ings but somewhat less conspicuous than usual. Wings hyaline with the 

 stigma deeply infuscated. Posterior femora quite uniformly brown ex 

 ternally with a somewhat obscure pallid pregenicular annulation ; inter 

 nally black with two light bands, one preapical and one median. Hind 

 tibiae greenish blue, the basal third pallid. 



Length, body, <j\ 18 mm., 9> 2 5 mm. ; antennae, /^, ?, 9,6 mm. ; ely 

 tra, cf, 16 mm., 9> 1 9 mm. ; hind femora, $, 10 mm., 9? I2 mm. 



Type No. 6704, U. S. National Museum. 



Two males and one female from Phoenix, Arizona, collected 

 October 27, 1902. 



This species is most nearly allied to Encoptolophus pallidtls 

 Bruner, from California, but the color is darker, in this regard 

 standing between that species and costalis, and the general form 

 is much more slender. It differs from costalis in its slenderer 

 form, less conspicuously marked elytra and smaller size. When 

 a number of specimens are examined there will probably be some 

 variation found to exist in the length of the antennae, this being 

 the case with E. pallidus. 



Trimcrotropis vinculata Scudd. 

 Conozoa behrensi Sauss. 

 Anconia Integra Scudd. 

 Schistocerca shoshone Thorn. 

 Schistocerca vega Scudd. 

 Melanoplus aridus Scudd. 



There are nine specimens of this species in the collection and 

 one, a female, is quite noticeably tinged with green. 



Melanoplus broivnii Caud. 



These specimens, eleven in number, agree with the type speci 

 mens except that the posterior tibiae are bluish in color. The 

 tibiae of the types may have been faded in color. 



Melanoplus dijferentialis Thorn. 

 Melanoplus Jlavidus Scudd. 



