492 JOURNAL OF the; WASHINGTON ACADEMY OP SCIENCES VOL. 11, NO. 20 



Description. — (cf, the 9 unknown). Head slightly broader than 

 the pronotum; labial palpi slender, the terminal segment cylindrical, 

 slightly and gradually thickening apically, the tip truncate, the whole 

 three times as long as the preceding one, which in turn is about one- 

 half as long as the penultimate segment; eyes yellowish brown, the 

 rest of the head yellowish green, the slender antennae being darker 

 green with some very narrow black bands scattered along the length. 

 Pronotum green with a narrow longitudinal mesial stripe on the disk 

 and with the cites of the lateral carinae somewhat lighter; pronotal 

 disk truncate anteriorly, posteriorly broadly and uniformly rounded; 

 lateral lobes with the humeral sinus rounded and margined with black, 

 the callous large but indistinct ; there is a small black splotch anterior 

 of the center of each lateral lobe and there are two small transverse 

 black spots on the posterior margin of the pronotal disk, the mesial 

 longitudinal stripe separating them. Legs as noted in generic descrip- 

 tion, the posterior femora shaped as in Insara; foramina of fore tibiae 

 shining black. Wings slender, over twice as long as broad, the 

 posterior apical margin evenly curved, the membrane transparent 

 with green venation, the apex green and thickened as noted in the 

 generic diagnosis. Tegmina green with the radius, the anal vein, 

 which continues to near the tip of the tegmina, and the heavier of 

 the stridulating veins of the singing area piceous and a series of several 

 conspicuous short, pointed, diagonal, basally directed piceous streaks 

 extending from the posterior margin, following the veins as shown in 

 fig.l, a; these black veins and diagonal markings show very conspicuous- 

 ly against the greent egmina, imparting to them a very characteristic 

 appearance. Abdomen moderately heavy; last dorsal segment about 

 twice as long as the preceding one and apically very broadly notched 

 and laterally concave, the lateral angles thus formed appearing as 

 rounded tubercular-like protuberances, as shown in figure l,c, supraanal 

 plate twice as long as the basal width, the sides straight and tapering 

 to a narrowly rounded apex, the entire dorsal surface deeply concave ; 

 subgenital plate very like that of Phaneroptera (= Sctidderia), being 

 a narrow elongate, upcurved flattened plate with conspicuously thick- 

 ened margins, concave above, convex beneath and the apex triangularly 

 notched, the terminal lateral lobes rounded and about as long as 

 thick, but scarcely at all style-like; cerci characteristic in shape, as 

 shown in the accompanying figure, figure. 1. 



The immature form shows little essential difference from the adult 

 except that the colors show evidence of the same brilliantly hued 



