PTILOCERA. 35 



middle ; sides parallel, except for a very slight contraction about 

 the middle ; about the upper halt' closely punctulate, with minute 

 bristles ; these bristles also cover the ocellar triangle, which is 

 elevated above eye-level ; ocelli reddish brown ; a large dark 

 chestnut-brown shining bare callus above antennae, not easily 

 distinguishable from the frons, and just above it a grey tomentose 

 spot (seen only in certain lights) on each side, contiguous to inner 

 eye-margin ; face with practically parallel sides, as wide as frons, 

 black, with a shimng bare spot just below antennae ; a little 

 whitish pubescence, which is rather longer along lower eye-margins. 

 Aritenrial first two joints shining black, first two annulations of 

 43rd yellowish-grey tomentose ; rays dark shining blackish brown ; 

 terminal style yellowish white, sponge-like. Proboscis, palpi, and 

 occiput black, the latter with a little greyish-white pubescence, 

 longer on posterior orbits, especially on lower part. Thorax black, 

 very closely punctulate, with minute black spines and with very small 

 scales that exhibit emerald-green and mauve reflections according 

 to the light ; these scales, in addition to general distribution, 

 form in good specimens four distinct equidistant longitudinal 

 stripes from anterior to posterior margins, the two outer ones 

 along side-margins of dorsum ; the scales also occur below the 

 wing-base, on the mesopleura, and on the scutellum ; shoulders 

 rounded, burner! inconspicuous ; sternopleura with greyish-white 

 tomentose pubescence ; scutellar spines black. Abdomen shimng 

 indigo-blue or violet, entire surface closely punctulate and covered 

 with minute bristles like the thorax ; anterior corners of 2nd seg- 

 ment with a little, very short, whitish pubescence, and a small 

 whitish hair-spot towards upper outer corners of 3rd and 4th 

 segments ; 5th segment depressed longitudinally in middle, most 

 of its middle surface with short whitish pubescence, or the hind 

 margin only, or the pubescence in the form of two circles separated 

 by the median depression. Genitalia small, brown, mainly con- 

 cealed. Venter like upper side, with very minute soft whitish 

 pubescence. Legs shining black, with microscopic grey pubescence ; 

 a little shining brown about trochanters and base of femora and, 

 perhaps, extreme tips of femora ; underside of hind tibiaa with 

 golden -brown pubescence. Wings blackish brown; base of 4th 

 posterior cell, greater part of anal and axillary cells, alulaa, and 

 base of wing clear ; a yellow streak from costa about stigma, con- 

 tinued hindwards to outer side of discal cell ; veins dark brown ; 

 halteres black. 



Length, 9-1 0| mm. 



Described from six $ $ in the Indian Museum : Darjiling 

 District, 1000-3000 ft., v. 1912 ; Singla, Darjiling District, vi. 191 3 ; 

 Sukua,base of Darjiling Hills, 500 ft., 1. vii. 1908; Parambikulam, 

 Cochin State, 16-24. ix. 1914 (Gravely); Kandy, Ceylon, vii. 1910; 

 Peradem'ya, Ceylon, 20. v. 1910; Pollibetta, Coorg, 15-26, v. 

 1915 (Fletcher) ; Hopin, Upper Burma, viii. 1914 (Fletcfier); above 

 Tura, Assam, 3900 ft., vii. 1917 (Kemp). 



D2 



