173 
1870] 
LIST OF BRITISH SYRPHID^. 
BY G. U. YERKALL. 
,s I wish to rescue the British I>ittera from tl.o state "f coi.fV>™n 
h they exist in most collectioBs, I offer a systematie l.st of on 
l*a«raetivefaB.i.ies; hoping, in eonrse of ti^e, to suppleme 
th others. As Mr. Walker, in the " Diptera Bntann.ea h,.s 
L 153 oecies of Sy-yiW.^, and I now give only 1G6, and even 
": rmliy, I have not .ateriaUy increased onr nn.her 
eeies • hut upwards of 20 of Walker's are sunk as var.et.es. and n 
ca^'sthenLenelature has heen hronght more >nto agreement 
r; seonthe continent. When I have marked .a spec.es 
an asterisk,! have not been able to critically e.am.n .t, hnt 
V it trbernly British. I intend to supplement the hs w. b 
notes upon a number of the species; and as a caut.on, I may 
Lktlt I do not consider it at all exhaustive, but ant.cpa.e 
ng it to at least 200 species. 
BACCUA, F. 
elongata, F. 
scutellata, Mg. 
obscuripenuis, Mg. 
SPHEGTNA, Mg. 
cluuipes, Fin. 
ASCiA, Mg. 
podagvica, F. 
floralis, Mg. 
dispar, Wll. (Mg ?) 
lastata, Wile. {Mg ?) 
♦geuiculata, Mg. 
DOROS, Mg. 
conopseus, F. 
XANTIIOGBAMMA, ScJliu. 
citrofasciata, Beg. 
oruata, Mg. 
sPn.i:EOPnoRiA; ^S*^. Targ. 
scripta, L. 
dispar, Lie. 
picta, Mg. 
nieuthastri, L. 
nitidicollis, Ztt. 
tceniata, Wlk. 
DiDEA, Mcq^. 
*alneti, Fin. 
STRPHUS. F. 
pyrastri, L. 
tmicolor, Gio't. 
laternarius, Mi'dh 
glaucius, L. 
albostriatus, Fin. 
confusus, Fgg. 
lunulatus, i%- 
triciuctus, Fin. 
topiarius, Mg. 
grossularia^, Mg. 
diapbaiuTS, Ztt. 
ribesii, L. 
vitripcunis, Mg. 
nitidicollis, Mg. 
uitens, Ztt.? 
