246 [November, 



resemblance to the hypopygia of humilis and pie iir alls ; hypopygmm large, 

 a small and indistinct yellowish ventral plate, anal organ minute and 

 dxisky luider 1 mm. hirticaudata, n. sp. 



62 (61) Pleurse bristly. 



63 (64) Fore metatarsi of male conspicuously dilated. Frons in both sexes 



smooth and slightly shining, the pubescence being very fine. 

 (J ? . A deep black insect with clear wings : — Thorax and abdomen black, one 

 large pleural bristle near root of wing, the others small ; frons of the nsiial 

 proportions, slightly shining, upper supra-antennal bristles large and in 

 alignment with inner bristles of middle frontal row, under ones approxi- 

 mated and about \ as large as the upper, antennae small, palpi variable, 

 yellow or brown, usually darkest in male ; costa less than f wing length, 

 1 considerably longer than 2 + 3 but not half as long again, fringe only 

 moderately long, angle at fork large, 1st thin vein leaves at the fork 

 without appreciable curve ; legs brownisii-black or black, fore metatarsi f i ) 

 conspicuously swollen and nearly as thick as the tibioe, the other joints 

 and the whole tarsus of female slender, tibial cilia small and delicate ; 

 male abdomen stout, hypopygium small, with a small weak bristle on each 

 side beneath, the dusky ventral plate broad and rounded at the end, anal 

 organ black, short and thick 1 — 1^ mm. manicata, n. sp. 



64 (63) Fore metatarsi simple. Frons dull and roughened with strong 



pubescence. 

 S ? . Another deep lilack insect with clear wings .- — Thorax and abdomen 

 black, pleural bristles strong with one or two specially enlarged at the 

 bottom corner of the patch ; frons of the usual proportions, 4 large and 

 nearly eqvial supra-antennal bristles, the vipper ones (at least in the male) 

 outside an alignment with tlie inner bristle of middle frontal row, and the 

 under ones approximated, antennae rather large, palpi black ; wings clear, 

 costa fully | wing length or rather more, 1 a third as long again as 2 + 3 

 or sometimes rather more, angle at fork large, 1st thin vein slightly cvu-ved 

 at its orgin ; legs black, tibial cilia distinct but niimerous ; hypopygiiun 

 large, armed beneath with 3 or 4 long bristly haii's on each side, ventral 

 plate small and slender, black or dusky yellow, subanal body generally 

 exposed, anal orgaii large and black 1 — 1| mm. hirsuta, n. sp. 



Tarsalis. — Not a very commou species. Most of my specimens 

 have been taken in May, and a few again in September and October. 

 Of the various locahties, the old decaying beech tree in Stoke Wood 

 has been the most prolific. It has many points in common with an- 

 gelicse, but the distinctly enlarged fore tarsi, which in the male at least 

 cannot be overlooked, serve at once to distinguish it from that species. 



Brevicostalis. — A common and widely distribvited little species, 

 occiu-ring in every month in the year from April to September, but 

 most abundantly perhaps in August. It frequents the flowers of 

 Angelica when in bloom, and at other times is obtained by general 



