193 
wording of his original description " abdomen a trois bandes jaunes, 
" fort larges— la deuxieme sans ecbancrure anterieurement (male) — 
" Epistome d'un jaune luisant, bord anterieur de la boucbe noir — 
" troisieme et quatrieme (segments de I'abdomen) a bande tres 
"large, atteignant les cotes pres du bord anterieur, legerement 
" ecbaucree du c6te posterieur— ventre a bords des segments et 
" taches trausversales noiratres. Pieds fauves ; hancbes et base 
"des cuisses noires," is I consider quite conclusive as to the 
identity of his species : he says it may be the male of topiarius, but 
the words "yeux nus " render that impossible. The reinstation 
of this name will also improve a doubtful piece of synonymy, as 
Fabricius in the Ent. Syst. described a Syrphus affinis, which, 
however, is a Phasia (Muscidcs) ; and, in consequence of that, Schiner 
rejects Loew's name, adopting Zetterstedt's name exoisics for the 
male. The species may be known from its allies by its yellow- 
haired scutellum, black cheeks, and emarginate abdominal bands. 
I believe it is widely distributed, and common in England, I have 
captured it in two or three localities in Sussex, and also near 
Eichmond. It is frequently to be noticed in British cabinets under 
the name of eorollce. 
1. Nitens, Zetterstedt, Dipt. Skan., 712, 14 ? (1843). In the original 
description of this species, a single female only was described, 
which appeared to be very closely allied to nitidicollis, the only 
tangible distinctions then given being the rather smaller size and 
the much greater blackness of the femora. To this description 
was afterwards added (Dipt. Skan., viii, 3137), that the vertex is 
evidently narrower than in the allied species, and that the epistoma 
has a rudiment of a brown middle line ; and a male was described, 
probably belonging to this species, concerning which it was stated 
that there are two oblique brown spots above the antenn®, and 
that the abdominal bands are rather undulated. The bright thorax 
and black-haired scutellum distinguish it from all but nitidicollis 
and nigritarsis. In August, 1866, I captured in Sussex a female 
very similar to nitidicollis, with the vertex very slightly narrower, 
with twe oblique brown spots above the antennc-e, and with the 
abdominal bands distinctly undulated and much narrowed at their 
ends ; the epistoma has a trace of a dark middle line, the wings 
are more pellucid, and the pubescence in general is darker, the 
black hairs predominating on the abdomen, and the four anterior 
femora are fringed with black hairs instead of all yellow, the ab- 
domen is also broader. All these distinctions might show the spe- 
