122 Psyche [August 



Although they are saltatorial, their legs are not developed as 

 are those of Orthopterous insects. The legs are extremely slender 

 and long, the hind pair decidedly longer than the total length of 

 the body. 



Boreus briimalis Fitch. 



Female. Length 3-3.75 mm., including ovipositor; polished, deep black-green; 

 legs, antennae and rostrum black and polished, but reflecting the light very feebly; 

 ovipositor brilliantly polished, pure black. Antennae inserted near the middle of 

 the front, their bases nearer to margin of eyes than to each other; filiform; 2.15 

 mm. long; 22-, sometimes 23-jointed; the basal and second joints stout, slightly 

 longer than wide; other joints one and one-half times as long as wide, gradually de- 

 creasing in length, but not in width, as the tip is approached so that the penultimate 

 joint is about as long as it is wide; terminal joint ovate. Ocelli absent. Eyes bare; 

 black; bulging out prominently, and extending back to the prothorax. Rostrum 

 black, long-conical; twice as long as the head from which it gradually tapers; sparsely 

 covered with light hairs; supra-clj-peal piece just below the antennal cavities; max- 

 illa with horny base, bearing sLx, short, transverse spines, serrate-spinose apically; 

 maxillary palpi four-jointed, reaching beyond tip of beak; covered with long, light 

 hairs, except last joint, which is the longest and slightly thicker than the others, 

 long-ovate, bare. Labrum flat, more than four times as \\nde as long, but some- 

 what constricted in middle; labial palpi one-jointed, with a tuft of hair at tip. Man- 

 dibles bidentate, and rather sharp. Prothorax wider than long; coarsely, trans- 

 versely striate; with an oblique groove extending from each anterior angle and 

 meeting medially near the posterior border to form one, continuous, broad, U-shaped 

 groove; a row of long, black hairs on both anterior and posterior margins. Meso- 

 thorax narrow, pubescent. Metathorax as long as prothorax; divided into three 

 parts by two, deep, transverse grooves, which extend down the sides to the coxae; 

 middle portion much narrowed, allowing the small, round, first abdominal segment 

 to protrude. Abdomen consisting of eight segments, tapering so that the last forms 

 a part of the ovipositor; oval; segments distinctly marked by strongly impressed, 

 transverse lines; the first segment small and partly hidden by the metathorax; 

 all segments densely covered with fine, white, appressed hairs, especially behind. 

 Ovipositor 0.8-1.0 mm. in length; composed of three segments, the middle piece 

 the largest; brilliant black; sheathing style issuing from the seventh abdominal 

 segment, shorter than the ovipositor; finely serrated on its apical third. Legs 

 extremely long and slender, densely clothed with minute hairs; front legs as long 

 as abdomen and ovipositor together, middle legs one and one-third times as long 

 as front legs, and hind legs one and one-third as long as middle legs. Tibiae with 

 a pair of short spines at tips; posterior half of tibiae and all tarsal segments with small, 

 short spines. Tarsi five-jointed, the first joint as long as the next three, the second 

 as long as the third and fourth together; the fifth terminated by a pair of small, 

 slender, simple claws. Front wings merely scales; less than 0.2 mm. long and 

 about as wide, with a median longitudinal ridge; tuberculate and set with very 



