164 ORTHOPTEROUS GROUP INSARAE 



femora acute but without traces of distinct spinulations.^' Cephalic femora 

 over twice the length of the pronotum; cephalic tibiae with the tympanum 

 elliptical in form. Median femora three times the pronotal length. Caudal 

 femora about twice the length of the median femora, considerably inflated 

 proximad; caudal tibiae surpassing the femora by about the pronotal 

 length. 



Allotype. — d", Palmerlee, Cochise County, Arizona.^* July 30, 

 1905. (C. Schaeffer.) [Brooklyn Institute of Arts and Science.] 



Description of Allotype. — Size medium; form moderately elongate. Head 

 with the occiput gently declivent to the moderately elevated fastigium, 

 lateral margins of the latter regularly converging cephalad, distinctly sul- 

 cate, apex depressed; facial fastigium trigonal, slightly deeper than broad, 

 the borders marginate; eyes very prominent, elliptical, greatest width about 

 two-thirds the greatest depth; antennae over three times the length of the 

 body. Pronotum strongly sellate, the dorsum constricted mesad, dorsal 

 line when seen from the side very briefly ascending cephalad and with the 

 caudal half regularly and decidedly oblique-arcuate ascending dorso- 

 caudad, greatest caudal width of the disk about two-thirds the greatest 

 dorsal length of the same; cephalic margin of disk very broadly triangular 

 emarginate, caudal margin semi-ovate in outline, lateral lobes on metazona, 

 when seen from the dorsum, strongly bullate; transverse sulcus placed 

 mesad on disk, there finely and narrowly obomegoid in outline, on lateral 

 lobes decided dorsad; lateral margins of the pronotal disk slightly 

 strumose cephalad on the prozona and in direction diverging cephalad, 

 absent mesad, the disk there rounding into the lateral lobes, on caudal 

 two-thirds of metazona forming distinct but non-carinate shoulders, im- 

 mediately ventrad of which the lateral lobes are impressed; lateral lobes 

 of the pronotum with their greatest depth two-thirds the greatest dorsal 

 length, cephalic margin oblique, subsinuate, ventro-cephalic angle nar- 

 rowly rotundato-rectangulate, ventral margin arcuato-emarginate, ventro- 

 caudal angle rounded, caudal margin obliquely arcuate, humeral sinus 

 rotundato-rectangulate. Tegmina about four-fifths the length of the 

 caudal femora, moderately narrow; marginal field moderately expanded 

 and arcuate, the length of the same about one-fourth that of the entire teg- 

 men; costal margin evenly arcuate distad: apex narrowly rounded; discoidal 

 vein with three rami; stridulating field with its greatest width (to apex of 

 stridulating vein) three-fifths the length of the same field, free margin 

 strongly produced at the apex of the stridulating vein, distad of this near the 

 base of the speculum strongly arcuato-emarginate and less deeply arcuato- 

 emarginate at the apex of the same, speculum with its greatest width sub- 

 equal to its length, stridulating vein strongly arcuate proximad, slightly 

 sinuate distad, anal vein gently arcuate. Portion of the wings projecting 

 distad of the tegmina nearly as long as the median femur. Abdomen with 



s- True, though very minute, spinulations are present in the other females 

 of the species examined. 



*^ This is the holotype of A. sellnlti llehn. 



