3894.] 159 



D. Dalii, sp. n. 



D. seria, ?, Mgn. 



Forehead rather prominent, eyes in the male rather .widely separated, frontalia 

 occupying about one-fourth of the head ; frontal stripe black, and rather wider than 

 the sides, which, like the face, are white with dark reflections ; fronto-orbital 

 bristles extending to a little below the base of the third antennal joint ; facial setse 

 reaching up about two-thirds of the face ; antennae brown, with the third joint very 

 thick and rounded, and five or six times as long as the second, which is sljort ; arista 

 with the second joint indistinct, and the third thickened for half its length ; palpi 

 black at the base and rufous at the apex ; thorax shining black, with the front half 

 covered (particularly upon the shoulders and sides) with hoary pubescence, and 

 marked with four black stripes ; outer post-sutural dorso-central bristles three in 

 number ; scutellum grey ; calyptra dirty white ; halteres yellow ; abdomen conico- 

 cylindrical, with both discal and marginal setse, first segment nearly as long as the 

 others, and black, second, third, and fourth cinereous, tessellated with black patches, 

 and having a black dorsal line (most distinct on the second ring), as well as black 

 hind margins ; wings greyish, with the fourth vein bent at a slightly curved angle, 

 and the apical and outer cross veins quite straight, the first posterior cell is nearly 

 closed, and terminates a little before the apex of the wing ; the outer cross vein is 

 placed exactly in the centre between the inner cross vein and the angle of the fourth j 

 legs black, hind tibise irregularly ciliated on their outer sides. Length, 8 mm. 



This fly corresponds closely with Meigen's shoi't description of D. seria, with 

 the exception of the palpi being rufous at the end ; he says nothing, however, about 

 the large thick antennae, which are such a prominent feature in the species, so I 

 have described it as new. By the structure of the antennae, it resembles the Z>. 

 grandicornis of Zetterstedt, but it differs from that species by the second joint of 

 the arista not being elongated, and by the abdomen being very differently marked. 



A male of this well marked species was captured at Glanvilles Wootton, Dorset, 

 by Mr. Dale, and sent to me for my inspection, in May, 1894. I have much pleasure 

 in naming it after him. 



PHOEOCEEA, Dsv. 



P. PUMICATA, Mgn. et End., non Mcq. 

 In the first part of my Annotated List I remarked that I had not seen this 

 species, and doubted whether it was distinct from P. cilipeda, Rnd. ; the Rev. E. 

 N. Bloomfield, however, sent me two specimens last year, which had been captured 

 by Mr. Piffard, at Felden, Herts, which I found to be characteristically different 

 fi'om P. cilipeda, End., and may doubtless be considered as the P. pumicata of 

 Meigen. In general form, colour, &c., they correspond closely with P. cilipeda, 

 Rnd., but they differ by having only three outer dorso-central thoracic bristles 

 behind the suture instead of four, and by the legs being quite black. This species 

 seems to be rare. 



PLESINA, Mgn. 



P. NIGEISQUAMA, Zett., (^ . 



JP. flavicornis, Zett., ? . 

 This little species is black and shining. The antennae arc brown in the male, 



