1918.] NATURAL SCIENCES OF PHILADELPHIA. 211 



vein short, transverse ;^^ anal vein following its general direction as 

 the stridulating vein but not thickened, and from the general neigh- 

 borhood of the usually present Grylloid anal node continuing an 

 arcuate but longitudinal course to the apical margin of the tegmen; 

 axillary veins three in number, the first terminating at the "node," 

 the second continued, following the trend of the anal vein, to a 

 point of fusion distad on the sutural margin, third axullary vein 

 following the sutural margin distad of the "node:" area between 

 the ulnar and median veins mesad and distad wide, with three 

 cross-veins^^ and distad a spurious longitudinal vein; anal and axillary 

 veins connected by a number of cross-veins. Wings caudate, sur- 

 passing the closed tegmina by considerably more than the tegminal 

 length. Cerci very elongate, nearly as long as the body, tapering. 

 Subgenital plate moderately produced, spoon-shaped. Cephalic 

 tibiae with the cephalic face imperforate, but with a smooth elliptical 

 area in the usual tympanal position; caudal face with a large, elongate, 

 elliptico-reniform tympanum. Caudal femora moderately robust, 

 the apex relatively slender: caudal tibiae armed on the dorso-external 

 margin with four spines, the dorso-internal margin with four to 

 five spines; external distal spurs relatively short, the median one 

 slightly more than a third as long as the metatarsus and half again 

 as long as the dorsal one, ventral spur distinctly shorter than the 

 dorsal one, internal distal spurs with the median and dorsal sub- 

 equal in length, about one-half as long as the metatarsus, the ventral 

 small and subequal to the ventro-external spur: caudal metatarsus 

 slender, moderately compressed distad; dorso-external margin with 

 seven to nine adpressed spines, dorso-external spur faintly more 

 than one-half as long as the internal one, the latter reaching to 

 slightly distad of the middle of the third tarsal joint. 



Allotype: 9 ; Igarape-assu, State of Para, Brazil, Januarj- 23, 

 1912. "(H. S. Parish.) [Acad. Nat. Sci. Phila.] 



The following features are those of difference from the type. 



Pronotum faintly less strangulate; cephalic margin of same very 

 shallowly arcuate-emarginate. Tegmina slightly shorter than in 

 the male, reaching not quite to the middle of the al)domen; humeral 

 and discoidal veins well separated, slightly diverging distad, humeral 

 vein not furcate distad: dorsal field with the median, ulnar, anal 

 and two axillary veins regularly disposed, cross-veins, indicated 



■** At least this is the usual position of the ulnar vein in the GrylhnEe. 

 *' The ulnar vein (so-called) might be considered another one. 



