Empididae. 131 



joints, the posterior metatarsi also with some beneath; the pubescence 

 on the front tibiæ and the ciliation on the hind tibiæ continued out 

 on the tarsi. All the hairs and bristles black. Wings strongly brownish, 

 somewhat yellowish towards the base. Veins brown, the lower branch of 

 the cubital fork bent very slightly downwards and just at the apex 

 curved a little upwards, it terminates long before the apex of the 

 wing. Stigma a little darker brown than the wing, but very faint 

 and little conspicuous. Halteres yellow. 



Female. Ghiefly agreeing with the male; frons broad, grey. The 

 lamellæ of the ovipositor short, and below them there is a small, 

 roundish appendage. Hind tibiæ simple, but the legs with still more 

 bristles than in the male, thus the front tibiæ with small bristles 

 ventrally and the hind tibiæ with a ventral row of strong bristles, 

 and also the front metatarsi have bristles. 



Length 9 — 11 mm. 



The pupa is brownish yellow, about Hmm. long; the two upper 

 of the tubercles on the front side of the head are distinct, transverse 

 and compressed, the two lower have a large, sharp edge below. 



E. tessellata is very common and has been taken in almost every 

 part of Denmark. It is chiefly a somewhat early oecurring species, 

 but some few may be seen rather late; my dates are ^"/s — ^-'/s. It 

 occurs especially in low herbage, very often on flowers of various 

 Umbelliferæ, in fens, fields and similar localities, both in and near 

 woods and in not woody districts. I once have taken it with a Scato- 

 phaga stercoraria as prey. The larva was taken in mole-casts in 

 Ordrup Mose on ^^U, it pupated ^Ib and developed ^"'Ib, and in Frers- 



lev Hegn on '/s which latter pupated 7-5 and developed ^la. 



Geographical distribution: — Whole Europe down into Spain and 

 Italy; towards the north to middle Scandinavia, and in Finland. 



25. E. brevicornis Loew. 



1869. Loew, Beschr. eur. Dipt. I, 263, 155. — 1903. Kat. palåarkt. 

 Dipt. Il, 234. 



Male. Eyes contiguous; epistoma greyish. Occiput grey with 

 black bristles and hairs. Labrum somewhat longer than the head is 

 high; palpi brown with black hairs. Antennæ a little shorter than 

 the head, black, first joint a little longer than the second, both with 

 short, black hairs, third joint relatively short. Thorax brownish, with 

 three darker stripes, abbreviated behind; the two lateral broadest. 

 The dorsocentral and acrostichal bristles of moderate length, black, 

 pluriserial, the former longer and uniserial behind; the sides of the 



