ORTALID^E. — IDIOTYPA. 185 



the middle stripe, otherwise brownish-ferruginous. Scutellum 

 short, with two bristles, pale-yellow. Pleurae black; the humeral 

 region, including the prothoracic stigma and a broad band, run- 

 ning from the root of the wing to the interval between the fore 

 and middle coxa?, pale-yellow ; the suture, lying in this band and 

 running down from the root of the wing, is margined with brown- 

 ish-black. Metathorax black, separated from the pleurae by a 

 broad yellow stripe. The first abdominal segment rather long, 

 very slender, considerably incrassated, however, towards its end, 

 so that here it equals in breadth the following segment ; its first 

 third is black, the second pale-yellow, the remainder, as well as 

 the remaining portion of the abdomen, yellowish-ferruginous, 

 almost ochre-brownish, and beset with a short pubescence of the 

 same coloring. Ovipositor of the color of the abdomen ; quite 

 flat ; the first segment not quite so long as the last three abdo- 

 minal segments taken together ; rather narrow towards its end. 

 Coxae brownish-black; the second joint of the front coxae, the tip 

 of the first joint and the second joint of the middle ones, yellow. 

 All the femora beset with spines, not incrassated, but strong, 

 black, yellow to a small extent at the basis only, yellowish-red 

 to a considerable extent towards the end. Front tibiae reddish- 

 yellow; the four posterior ones of a purer yellow with reddish- 

 yellow tips. All the tarsi yellowish-red; the front tarsi from 

 the second joint and beyond dark-brown; the other tarsi infuscated 

 at the tip only. The hairs on the feet are very short, and of the 

 same color as the ground upon which they are inserted. Wings 

 comparatively long and narrow, with ferruginous veins ; the 

 anterior half has a yellowish rusty-brownish tinge, which is 

 more ferruginous-yellow towards the basis, and more brownish 

 towards the apex ; the posterior limit of this coloring is almost 

 rectilinear and reaches the fourth longitudinal vein at its root 

 and at its tip only. The whole posterior half of the wing has 

 a decidedly yellowish tinge, but is rather transparent. The 

 second longitudinal vein is rather straight, gently bent forward 

 towards its end only; it reaches the margin not far from the 

 apex of the wing; two conspicuous stumps of veins project from 

 it not far from each other; both are perpendicular, but placed at 

 the opposite sides of the principal vein ; one is just opposite the 

 small crossvein, the other somewhat nearer to the apex of the 

 wing ; the small crossvein itself is a little beyond the last third 



