SCUDDER. — THE GROUP SCUDDERI^. 281 



the vertex much compressed, contiguous with the frontal fastigium. 

 Antennae very long and slender, rufescent in the basal half, very nar- 

 rowly interrupted with fuscous at the distal extremity of each joint. 

 Pronotum with the disk scarcely enlarging posteriorly, plane or feebly 

 convex, the front margin straight, the hind margin gently and uniformly 

 convex, the lateral lobes vertical or subvertical, the lateral canthi fairly 

 well marked but rounded except posteriorly, the lobes margined through- 

 out, of equal length and breadth, very strongly convex and subangulate 

 below, well rounded behind. Tegmina about five times as long as broad, 

 semiopaque, glistening, the front margin basally arcuate, the apex sub- 

 angulate and obliquely truncate below, the anal area exceptionally long 

 and tapering, the principal vein a little flexuous, the radial branch forked 

 in the middle of its course, the whole considerably surpassing the hind 

 femora ; wings longer than tegmina. Fore femora armed beneath on 

 the front margin with 2-3 spines, the middle femora with 1-2, the hind 

 femora with 4-5 small black spines on the inner, 3-5 on the outer mar- 

 gin ; fore tibiae with 2-4 spines on the outer margin above, 3-4 spines 

 on each margin below ; middle tibise spined above and below on each 

 margin. Anal segment of male tumid at base, rapidly narrowing to 

 form beyond the middle constriction a pistillate process consisting of a 

 pair of subcylindrical rolls placed side by side, each rather shallower than 

 broad, fully twice as long as broad, when seen laterally nowhere broader 

 than the middle portion of the segment, straight and slightly tapering, 

 the tip blunt ; seen from above, they are together slightly broader than 

 the middle portion of the segment, being a little tumid, cleft by a basally 

 rounded deep emargination with subparallel sides to the middle of the 

 pistillate portion, the whole bent downward at an obtuse angle with the 

 base of the segment, the apical emargination not wide enough to receive 

 any portion of the subgenital jilate, the whole resembling a tuning fork 

 with rounded arms. The subgenital plate of male considerably surpasses 

 the anal segment, is rather strongly bent-arcuate, depressed, and tapers 

 throughout though very little in the distal half, the extreme apex com- 

 pressed and angularly excised so as to be V-shaped. Cerci of male 

 very strongly incurved and twisted, rather stout and not very long, 

 regularly tapering. Ovipositor half as long again as the pronotum, very 

 regularly arcuate, tapering with considerable uniformity, bluntly pointed, 

 the margins feebly crenulate, the whole rufo-castaneous, greenish toward 

 base, the basal plica unmarked. 



Length of body, S, 21 mm.; ?, 23 mm. Pronotum, <?, 9, 6 mm. 

 Tegmina, (?, 38 mm. 5 9,34 mm. Breadth of same, <?, 7.7omm. ; 9, 



