IDG [February. 



(?. Facie angustissimd, albidd, fronte ccerzileo-viridi, palpis nirjro-setosis, 

 barbd albidd ; tarsis aniicis subsimplicibus, articulo basali vix apiee incras- 

 sato et vix curvato, articulis tribus proximis longitudine subcBquali ; hypopygii 

 lamellis eloiigatis. 



?. Cupreo, facie fronteque albidis ; coxis anticis fiavidis, basi cinereis, 

 tibiis posticis apice ohscuris. 



(? . A rather small species, slightly smaller than P. consohrinus, Zett. ; arista 

 nearly twice as long as the third joint of the anteunse, the latter being about three 

 times longer than broad ; eyes conspicuously hairy, ■with brownish-yellow hairs ; 

 face extremely narrow, almost touching in the middle, white just above and below 

 that point ; frons shining blue-green, with a whitish sheen ; palpi small, concealed, 

 but the rigid black bristles at their tips conspicuous ; beard whitish, the single cilia 

 round the upper part of the eyes black. Thorax shining green, scutellum a little 

 bluish, breast-sides slightly silvery ; abdomen duller green, with a slight silvery 

 sheen, most conspicuous on the third, fourth, and fifth segments, the bristly pu- 

 bescence rather dense, black, the hairs about the basal corners white ; appendages long 

 strap-shaped, slightly bristly ; alulse dull whitish-yellow, with white fringes, halteres 

 whitish-yellow. Legs yellow, cox« black, front pair clothed with black bristles, 

 anterior femora black, yellow at the tip, hind pair black at the tip, and for nearly 

 half their length on the upper side, front femora rather bristly, especially on the 

 basal half beneath, front tibise bearing several bristles outside, just above and about 

 the middle, basal joint of tarsi nearly as long as the next three joints, a little bent, 

 slightly thickest and most bristly about the middle, and with very minute erect 

 hairs beneath, the second joint very slightly bent, and all the joints gradually di- 

 minishing in length ; middle coxse with a tuft of black bristles at the end almost like 

 a spine, middle femora rather pubescent, with two or three bristles near the tip, 

 tibiaj bearing about three pairs of large black bristles on the upper half outside, 

 about which the small bristles are absent, inside below the middle is, as usual, one 

 bristle, basal joint of tarsi as long as, or slightly longer than the next two, all 

 yellowish except the last ; hind femora with one small bristle near the tip, tibia) 

 with one bristle outside about one-eighth the length from the base, and two or three 

 others just about the middle not very conspicuous, just below which is a small 

 denuded space, apex with two bristles outside, tarsi black, second joint longer than 

 the first, third slightly shorter than first, fourth and fifth together slightly longer 

 than third. Wings brownish-hyaline, discoidal vein distinctly bent and approxi- 

 mating, but parallel towards end. 



? . Coppery, sides whitish, face and frons white, the latter with a greenish ground 

 colour, face rather narrow, sides nearly parallel, palpi whitish, with a few black 

 bristles ; legs yellow, coxae blackish-grey, front pair yellowish with the base grey, 

 bearing three black bristles at the tip, and a yellow one above, front femora dusky 

 above, middle femora with one or two long black bristles near tiie tip, bristles on the 

 anterior. tibiae almost as in the male, hind femora dusky above at the tip, hind tibiae 

 rather more bristly than in the male, slightly darkened at the tip. 



Of the British species of Porphyrops, pectinatus is distinguished 

 by its black face and beard, stronger a^d more regular pubescence on 



