280 BO11BYL1IJL*. 



(and probably coxae also) covered with small silvery-white scales : 

 tibiae with small yellowish scales, short black spines and a circlet 

 of them at tips, which are a little darker ; tarsi black, with usual 

 pubescence, metatarsi partly or almost wholly pale. Wings quite 

 clear, iridescent; veins pale yellow; squamae pale yellow, with 

 short hairs ; halteres large and prominent, clubs egg-shaped, from 

 nearly white to bright yellow. 



$ . Frons at vertex forming one-fourth the width of the head, 

 covered with bluish-grey dust and with very small yellow or 

 yellowish-white scales ; a cluster of silvery -white scales around 

 base of antennae ; face as in d 1 , except that the long hairs are 

 white, not black. Underside of first two antennal joints pale. 

 Posterior femora and apical part of fore pair, also all the tibia?, 

 pale yellowish. 



Length, 2|-4 mm. 



Redescribed from type c? from Lahore, 9. v. 1903 (Annandalt), 

 and three other <5 c? , also three $ $ , all (except type J ) from 

 Pusa, Bengal (Hewlett, etc.), where it is common, March to May. 

 Also from Alinora, Kumaon Distr., 5500 ft., v-vi. 1911 (Paiva) ; 

 Parel, Bombay Presid., 26. xi. 1909. In the British Museum 

 from four places in Ceylon, Trincomali, x. 1890, and Nilavelli, 

 31.viii.1890 (Col. Yerbury); Pundaluoya, ii. 1898 (Green); 

 Madulsima, 19. v. 1908 (T. E. Fletcher). 



This species is parasitic on caterpillars found under the bark of 

 the sissoo-tree (Dalbergia sissoo) ; it also occurs on the pipal. 



Types in the Indian Museum. 



224. Geron albescens, Brun. 



Geron albescens, Brunetti, Rec. Ind. Mus. iii, p. 229 (1909). 

 <5 . Head black ; eyes contiguous almost to antennae, frontal 

 triangle extremely small, upper facets slightly larger than lower 

 ones ; vertex elevated, small, with a few short black hairs ; ocelli 



Fig. 17. Geron albescens, Brun.; lateral view of head. 



red; mouth black, grey bordered; face small, squarish, black, 

 with some snowy-white scales on each side of base of antennae ; 



