204 
[J 
Baked eye, but may be easily seen with a Jens in a good light- th 
cies m th. group always have hairy eyes: the second grou; h. 
disc of the epstoma without any hairs, and the eyes (at least i 
male) distinctly hairy ; the females in a few species {alhitarsi.^fia,-^ 
and .uaaMis) have the eyes quite bare, but I think all the bar. 
females have the legs black, with the middle joints of the front 
pale : the third group has the epistoma without any hairs on the 
and the eyes bare in both sexes. 
Group l.-E'pistoma with distinct lairs on tie disc; eyes hairy 
1. (Estracea, L, This species may be at once known by its re 
shape and shaggy whitish pubescence, with a band of black 
across the thorax, and on the third segment of the abdomen ■ 
apical segment is clothed with tawny hairs, thus giving the i^ 
the appearance of a Criorlina. I believe it is tolerably com 
though I have only met with it near Dorking, in June, 1868 
2. intonsa, Lw., may be distinguished from any other British speci. 
this group by its soft brown pubescence, without the least ir 
mixture of black hairs round the edge of the scutellum 
thorax ; I expect it is rare, as I have only seen a pair in Mr 
win's collection, probably caught in Sussex, and a male in 
Entomological Club collection. Our species may be griseiven 
Lw., as the belly is dull. 
3. pigra, Lw. The characters of this species lie in the dark brown 
tenu^, with an only slightly pubescent arista, the brownish al 
ot he male, and the peculiar whitish pubescence on the abdo. 
of the female, forming slight fascia. In the Entomological C 
collection are one male and three females, and I possess one m 
captured by Mr. Smith in North Devon last year. 
4. ^-^«^«,Lw., is distinguished by its distinctly pubescent arista a 
rather pale legs, the pubescence on the thorax is more redd: 
than usual, and the hairs on the disc of the epistoma more abi 
dant^ I captured one female of this near Box Hill, in the sumn 
01 loo7. 
5. variabilis, Pz. This is the commonest of the genus, and may 
known by its entirely black legs, elongate abdomen, and bluis 
black colour. It is a large species, and occurs abundantly in woo, 
and about hedges in June. 
Group IJ.-Episiomawitlotctanyhairson tledisc; eyes{o/ tie male) lain 
6. tmpressa, Lw., is separated from the allied species by its entirel 
