in the British Museum. 39 



margin narrowly dark brown ; legs spotted with black and 

 yellow ; wings pale yellowish subhyaline, with small dark 

 brown dots and spots; Sc long, cell 1*/ M^ very long and 

 narrow. 



Female. — Length 4*1 mm. ; wing 4'5 mm. 



Rostrum and palpi brown. Antennae with the first 

 segment pale brown, the remaider of the antennae very pale 

 yellow. Head pale brown, sparsely grey-pruinose. 



Pronotum large and conspicuous, pale whitish. Mesonotal 

 praescutum with the broad central area whitish, this median 

 stripe narrowed before the suture to assume the form of an 

 hour-glass, at its narrowest point connected across by a 

 delicate brown line ; sublateral regions cinnamon-brown ; 

 the triangular lateral regions are conspicuously white, 

 narrowly margined with dark brown, the anterior margin, 

 at tlie pseudosutural foveae, very distinct ; scutum whitish, 

 only the margins of the lobes more infuscated ; scutellum 

 white with two basal spots and the caudal margin narrowly 

 dark brown ; postnotum pale brownish yellow, brown late- 

 rally and less distinctly in the middle. The pattern of the 

 pleura is not clearly evident in the two specimens at hand, as 

 the pins penetrate this region and are badly verdigrised ; 

 the region is pale with a large pale brown area beneath the 

 wing-root and possibly a dark ventral stripe ; at least the 

 mesopleura is heavily white-pruinose. Halteres pale, the 

 knobs but little darker. Legs with the coxae and trochanters 

 pale; remainder of the legs broken (see footnote). Wings 

 pale yellowish subliyline with numerous small brown spots 

 and dots, arranged as follows : the largest at the arculus, 

 smaller ones at the origin of Rs and Sc2; at the tip of 6'ci ; 

 at the tip of i?i ; seams along the cord, outer end of cell \st 

 il/j, and vein M^ ; distinct spots at the tips of all the longi- 

 tudinal veins, largest at 2nd A ; veins pale, brown in the 

 darkened areas. Venation : aS'c long, Sci extending to about 

 one-half the length of i?*, Sc2 a little beyond the origin of 

 Rs; Hi ending op[)Osite the fork of Rs, Z^^+s about two- 

 thirds as long as Rs ; i?2 perpendicular to the end of i?2+3 ; 

 vein i?3 about equal to Ri+i't inner end of cell l*^ ilVg ^^^ 

 proximad of the inner entis of cells H^ and R^; cell 1*^ iJ/g 

 long and nairow, longer than any of the veins issuing from 

 it ; basal detleetion of Citi at from one-fourth to one-filth 

 the length of this long cell ^st M^. In one specimen Rs is 

 slightly spurred at its origin. 



Alxlomen varying from pale yellowish to daik brown, (he 

 genital segment orange-brown. Ovipositor with the valves 

 powerful, long, and slender, the tergal valves strongly 

 upcurvcd. 



