new Sjjecies o/Tabatii. 331 



merits, by tlie A\ nter antennae, thi frontal callii^, with a very 

 {^hoit, thick line proceeding from it, and the thorax with two 

 greyisli-haireil spots at the base and no wliite tomentose 

 margin as in T. insignis. 

 Length 1 \\ mm. 



Head wider than tliorax. Face covered with grey tomen- 

 tiim and with while pnhescence ; beard white. Paip'i yellow, 

 wiih fairly long, white pubescence, moderately stout at 

 base, ending in a long acute ))oint. Antennae short, reddish ; 

 the first joint yellowish, with black pubescence on the upper 

 angle and whitish elsewhere, cylindrical, hardly at all cap- 

 sliap(dj the second sniall, red, with black pubescence; the 

 ihiid red, at apex black, with broad, short, first division, and 

 tooth marked by an angle; the last four joints very small. 

 Forehead fairly broad, very slightly narrower anteriorly, 

 about four times as long as it is broad, brown, covered with 

 grey totnentum and with some grey and black hairs; the 

 frontal callus reddish brown, nearly square, almost reaching 

 the eyes, the line proceeding from it is very short and thick ; 

 in the second specimen it is broader still, nearly as broad as 

 the callus itself, on each side of this line the brown ground- 

 colour a])pears as an ill-defined long spot; the vertex is 

 brownish. ]3ack of head whitish with white hairs. Thorax 

 black, shining, with two median, grey, tomentose stripes, not 

 reaching beyond the middle of thorax, at base of tliorax two 

 grey hairy spots ; sides grey with white pubescence ; on the 

 stripes the pubescence is whitisii, elsewhere black ; at the 

 base of thorax near the root of the wings there is thick white 

 pubescence. Sides and breast with grey tomentum and 

 white pubescence. Scutellura dull reddish, with grey toinen- 

 lum and white pubescence. Abdomen black ; on first 

 segment trace of a small, grey, median spot and at sides 

 broadly white, tomentose ; second segment with white 

 tomentose spot on each side, its upper angle pointing inwards 

 and reaching three quarters of the width of the segment, and 

 continued up the whole outer side of segment; the side spots 

 on the four tbllowing segments are very similar, decreasing 

 in size, the upper angles especially so; on the third segment 

 the large white median spot is almost square, extending the 

 whole width of segment ; on the fourth it is rather smaller; 

 all these spots are covered with grey tomentum and white 

 ])ubescence, the pubescence on the dorsum is otherwise black, 

 on the sides white ; underside dull reddish yellow, blackish 

 at sides and towards the apex, covered with short white 

 ]mbescence. Legs blackish brown ; the tibiae yellowish, the 

 fore tibiaj blick on apical half; the femora with greyish 



