26 H. C. EFFLATOUN. 



Very similar in colour, markings and size to P. tibialis, but 

 easily distinguished from it by the above characters. 



DESCRIPTION: — Maie. Faoe and frons entirely shining 

 vvhitish-yellow or yellowish-white,even the upper mouth-edge ;mouth 

 and proboscis black ; pubescence on the face and frons very short, 

 and inconspicaions. Occiput either entirely covered with silvery 

 white hairs, or yellowish-white hairs on the upper part and white 

 below. Vertex elongate, shining agneous-black, with yellow dust; 

 its pubescence is very short, pale yellow and inconspicuous. Eyefe 

 meet for a distance which is shorter than the length of the very 

 short frons, and with rather conspicuous white pubescence which 

 bas a tendency to run into stripes, and which leaves the front and the 

 back of the eyes (on the upper part) less conspicuously hairy. 

 AntenucC rather long ; the third joint is long, narrow and pointed 

 and is about five times as long as wide; the two basai joints are 

 blackish and the third is usually brownish above,but brownish-yellow 

 beneath and sometimes it is uniformly darker ; arista inserted well 

 before the middle of the joint and shorter than the third antennal 

 joint. 



Thorax varying from deep black to brassy greenish-black or 

 blackish-œneous and always shining, although rather coarsly 

 punctate ; it possesses two very faint dull lines on the front of the 

 dise ; pubescence on the dise very short, pale and inconspicuous, 

 but with a tuft of much longer, shining white hairs on the meso- 

 pleurc-e ; scutellum with either its basai half or the basai three- 

 quarters shining seneous-black, but with at least the apex yellow 

 and with short and pale yellow pubescence. 



Abdomen varying exceedingly in colour. In some cases entirely 

 black with yellow ish-red or reddish isolated spots on the second, 

 third and fourth segments, in others it is yellowish-red or reddish, 

 excei)t the base and the apex obscui-ely dark, and occasionally the 

 abdomen is entirely reddish except the basai corners ; it is rather 

 coarsely punctate, except the extrême hind margins of the segments 

 which are very shining; pubescence entirely pale and inconspicuous, 

 but longer and tufted on the first segment and on the basai corners 

 of the second segment. Hypopygium small, yellowish-brown and 

 apparently froc from pubescence. 



The two anterior pairs of legs are always entirely yellow or 

 orange-yellow, but the hind legs are variable in pale spécimens, 

 being nearly entirely orange, except for a dark brown spot on the 

 femora aftor the middlo, and in darker spécimens l)eing orange and 

 black. 



