200 Phoridae. 



costal cilia long; fork longish, angle somewhat acute; fourth vein 

 issuing considerably behind the base of the fork, somewhat curved 

 at its origin, curved upwards at the end and ending considerably 

 before the apex of the wing. Halteres black. 



Fig.-75. Wing of B. umbriinargo q. 



Female. Antennæ with the third joint smaller; palpi of the same 

 size and armature, and the female for the rest similar to the male. 



Length 1,8 — 2,6 mm. 



B. iimbrimargo I have taken only in one locality, Ermelund, 

 but here it is rather common, occurring on leaves of bushes and low 

 herbage in a low, damp place; my dates are ^U — ^"/e so that it seems 

 to be an early occurring species. I have taken it in copula on ^^U. 

 I took it for the first time in 1914. 



Geographical distribution: — Europe with Britain and down 

 into Austria; it does not seem to be known north of Denmark. 



10. Apliiocliaeta Brues. 



Species of small to medium size (about 0,5 to fully 3 mm). Frons ! 

 generally broader than high, sometimes quadratic or higher than 

 broad; it has an impressed longitudinal middle line; there are three 



transverse rows of bristles with four bristles in each row; the two | 



posterior rows are generally more or less straight, or the middle row li 



may be somewhat convex; the anterior row varies from straight '' 



to very convex, with the inner bristles much below the outer, in I 



extreme cases nearly or quite vertically below the outer. There are i 



two pairs of stronger or weaker supraantennal bristles, one below i 



the other, which are proclinate, directed forwards and downwards; ? 

 these two pairs of bristles are either equal in size or the bristles of the 



lower pair are smaller and weaker than those of the upper, in various i 

 degrees, down to a quite minute size, and in rare cases the lower 



