404 MR. r. W. EDWAEDS 0^* DIPTEEA 



vf the genitalia. — Blaclc ; pleurce and markings on dorsum of thorax aeal-hrovon 

 'pollinose ; dorsum of abdomen at base with two very conspicuous transverse bands of 

 long, dense, lackwardly directed white hair ; male genitalia with abnormally small 

 claspers ; legs black, front and middle tiblce raw-itmber-coloured, with the ewception of 

 their antero-inferior surfaces and extreme bases, which are dove-broivn or black. 



Head : face raw-sienna-coloured pollinose above, bufF-yellow pollinose below, front 

 mummy-brown pollinose, occiput dark mouse-grey pollinose (orbits yellowish-grey 

 pollinose below level of transverse row of black bristles near upper margin of head) ; 

 anterior half of front clothed on each side Avith black hairs, sides of vertex clothed 

 with longer, ochre-yellow hairs, a few yellowish hairs also present on each side just 

 above antennae ; median portion of upper part of face bearing a few longish, erect, 

 yellowish hairs, below which are three dark brown hairs on each side in an oblique 

 descending series ; mystax consisting of black bristles above, and of longer, drooping, 

 orange-ochraceous bristles below ; jowls clothed with ochre-yellow hair ; occiput 

 clothed with yellowish hair, basioccipital region densely clothed with long, bright 

 maize-yellow hair ; palpi black, clothed with coarse, ochre-yellow hairs, and also 

 bearing a number of black bristles at their distal extremities ; antennae moderately 

 close together at base, fii'st and second joints black, shining at their distal extremities, 

 yellowish pollinose at the base, clothed with stiff black bristles, first joints also with 

 some yellowish hairs on outer side at base (third joints missing in case of type). 

 Thorax : dorsum with lateral borders, two faintly marked admedian longitudinal 

 stripes, transverse suture, a curved mark on each side in front of the latter, and 

 scntellum seal-brown pollinose ; pronotum, except on each side, thinly clothed with 

 ochreous hairs traversed by a transverse row of black bristles, propleurse densely 

 clothed with maize-yellow hair, and a few yellowish hairs in front of postalar callus on 

 each side ; with these exceptions hair on thorax, like thoracic bristles, entirely black. 

 Abdomen : anterior transverse band of white hair occupying second tergite and hind 

 margin of first, following band of white hair occupying third tergite but separated from 

 anterior band by a well-marked interval, hair clothing subsequent tergites and also 

 lateral extremities of first three tergites entirely black ; lateral borders of fourth to 

 eighth tergites inclusive greyish pollinose ; male claspers scarcely half the size of those 

 of Promachus fasciatus Macq. ; venter clove-brown, somewhat shining, clothed with 

 fine black hair. Wings raw umber-coloured, dark streak in first submarginal cell 

 rather narrow, closer to second longitudinal vein than to anterior branch of third 

 longitudinal. Ilalteres chestnut-brown. Legs ; front and middle coxse clothed 

 anteriorly with long, coarse, ochre-yellow hair, posterior coxae with some fine yellowish 

 hairs on outer side ; upper surface and upper portion of posterior surface of hind 

 femora, except at distal extremity, and upper portion of posterior surfaces of front and 

 middle femora clothed with short bufF-yellow hairs (front femora also with a few 

 similarly coloured hairs on lower portion of posterior surface), raw-umber-coloured 



