25G JAMES WATERSTON. 



the spur not three-fourths of the first tarsal joint. Hind Icfjs : coxae (2 : 1) pear- 

 shaped, smooth on the inner aspect and externally on the ventral half, and with a 

 coarse, long drawn out, raised pattern above ; on the inner aspect are numerous 

 short bristles, except on the basal ventral half, and externally there are 7-8 short 

 bristles below the middle of the mid line ; dorsally there is a remarkable clump of 

 long bristles, the upper ones curving downwards and the lower ones curving up^^■ards 

 at the end, forming a distinct brush. Femur a little over three times as long as broad, 

 and, like the fore femur, widest beyond one-half from the base. Tibia (20 : 3) as long 

 as the femur, with 2 apical spurs ; on each side, above the smaller of these spurs 

 there stands, on the anterior apical edge, a short spinose bristle, and there are 1-2 

 more at the upper apical angle; the posterior comb consists of 14-15 spines. 

 Besides the bristles at the base of the tarsal ungues there is a short knob or angle 

 between the base and the claw on the inner aspect. Proportions of tarsal joints : — 



Forelegs .. .. 11 5 4 3 7 



Mid and hind legs . . 18 7 5 4 7 



Abdomen : first tergite covering about three-fourths of the notal surface, perfectly 

 smooth, A^•ith large overlaps, nearly bare, except for a patch of antero-lateral bristles, 

 practically all on the overlap. Second tergite with 2-3 minute bristles at the extreme 

 edge, above the overlap ; tergite 3, like 2, but Avith a complete post-median row of 

 bristles (16-18) : tergite 4 has 8-10 small bristles above the overlap and 2-3 below ; 

 on tergite 5 the bristles at the sides and on the overlap are more numerous ; tergite 6 

 posteriorly concave, Avith (when flattened out) distinct postero-lateral angles, 

 anteriorly deeply concave and produced at the sides into two broad lobes. Spiracle 

 at the side, facing posteriorly, with a patch of about 10 bristles behind and towards 

 the mid line ; up^^•ards of a dozen bristles between the setigerous processes. The 

 ovipositor is longer than its sheath, the exposed portion greatly exceeding the free part 

 of the latter, which is about one-sixth of the base. Sternites 1-4 gently concave 

 posteriorly, the fifth long, sharply-pointed ; the first not quite half (8 : 17) of the 

 ventral surface and bearing two basal lateral oval perforations ; the fifth (7 : 5) 

 is shaped like the gable-end of a house, the base broad (2:1) and shorter than the 

 gable (3 : 5). 



Length, nearly 1| m ; alar expanse, 2| mm. 



f^. Like the ^, but the wings liyaHne and the antennae infuscated. The leg>> are 

 darker, the hind coxae being dark above, infuscated below, and pale at the base 

 ventrally ; the tibiae are darker, paler apically, where they are coconloi'ous with the 

 first tarsal joint. 



Antennae (fig. S c) : length, -72 mm. ; scape and pedicel, ring-joint, four in funiclcj 

 three in club ; the funicle is cylindrical, and the joints diminish in length ; the stalks 

 are short and distinct, and the sensoria much raised, long and numerous; in the 

 maxillary palpus the fourth joint is longer than in the $ (26 : 23). Wings : length, 

 •94 mm. ; breadth, -42 mm. ; a little broader than in the 9, but essentially the 

 same, and as in the 2, the radius bare and the marginal and post marginal with only 

 the major fringing bristles. Piopodeon narrower than in the $, descending more 

 abruptly between the inner and outer lateral keels : spiracle more oval. Legs as in 



