1922] NATURAL SCIENCES OF PHILADELPHIA 283 



plate narrowly transverse; free margin transverse, very feebly 

 convex between the widely separated lateral styles. Styles small, 

 moderately stout, cylindro-conical, straight, slightly over twice as 

 long as basal width. Cephalic and median tibiae armed with the 

 usual number of spines, which are very elongate. Caudal femora 

 moderately stout and short, ventral margins armed with (twelve 

 to fourteen) internal and (nine to thirteen) external spines, the 

 proximal of which, where the greater numbers are present, being 

 very small. 



Allotype: 9 ; same data as type. [Hebard Collection.] 



Agrees with male, except as follows. Size very slightly larger. 

 Ovipositor Copiphoroid, very elongate, straight, tapering at apex 

 to an acute median point. Subgenital plate short, transverse, the 

 lateral margins weakly convergent, rounding into the transverse 

 distal margin, which in caudal aspect shows weak convexity ventrad. 



Coloration in general very simple. Head and pronotum mars 

 brown, except as follows; lateral carinae of fastigium of vertex and 

 large median ocellus warm buff, portion of occiput normally con- 

 cealed, caudal portion of genae, palpi, clypeus and labrum clay 

 color. Antennae clay color, with first joint suffused with tawny. 

 Pronotum almost uniform mars brown, the meso-distal area and 

 meso-cephalic and meso-caudal portions of the lateral lobes very 

 faintly paler. Spines of limbs clay color, those of the ventral 

 femoral margins heavily tipped with mars brown. Ovipositor 

 clay color tinged with ochraceous-tawny, except proximad. 



Length of body d 1 26.5, 9 31; least width of vertex cf -8, 9 .9; 

 length of pronotum o 71 6, 9 6.7; length of tegmen cf 37.2, 9 39.5; 

 length of cephalic femur d 71 9.8, 9 11.2; length of longest cephalic 

 tibial spine cf 4, 9 4.1; length of caudal femur c? 17, 9 18.5; 

 length of ovipositor 31.7 mm. 



This plainly bicolored insect is known from the described pair. 



Gryllacris fumigata Haan. 



1S42. L[ocusla] (Gryllacris) fumigata Haan, Verh. Nat. Geschied. Nederl. 

 overzee. bezitt., Zool., Ins., p. 219. [d 1 , Java.] 



Labuan, British North Borneo, 2 9 . 



These specimens differ from the typical condition in having the 

 ventral margins of all of the femora black. Agreement, in this 

 respect only, is shown with the variety elegans Griffini. 109 We do 

 not believe racial differentiation should be recognized, though 

 further material may prove such to be the case. 



The pronotum is somewhat paler laterad in the U-shaped de- 

 pression formed by the sulci. The tegmina are translucent cameo 

 brown, with series of areolae distad toward the lateral margins 



109 Ann. Mus. Nat. Hungarici, IX, p. 179, (1911). 



