270 f^p^"' 
Loew's variety Jnrtipes of Tiortulanus only approaches it in the more 
abundant bristles on the legs, it being larger than the true Jiortulaniis 
with whiter wings, and more white-haired abdomen. 
!From siciUus (Loew, Linnsea i, 344) the female may be at once 
known by the colour of the thorax, which is black, but the male is not 
so readily distinguished ; Schiner (Fauna Austriaca Diptera, ii., 359) 
says that it has the base of the abdomen always more or less with a 
pale pubescence, that the transverse vein is longer than the basal por- 
tion of the cubital vein, and that the wing is darker about the costa, 
but Loew, in the original description says, that the base of the abdomen 
is only sometimes white haired ; siculus is also the same size as hortu- 
lanus, therefore larger than anglicus, and is confined to the south of 
Europe in Sicily and Dalmatia. The male of marci may be at once 
distinguished by its much larger size and different neuration of the 
wings, which resembles hortulanus. 
Q'he species is very abundant in the neighbourhood of London, 
occurring in a garden here (Denmark HiU) by hundreds on leaves of 
shrubs, principally on currant bushes ; the female is, as usual, much 
more sluggish, and therefore apparently rarer than the male, which, on 
sunny days, is continually flying and hovering about the bushes. It 
appears about the third week in April, lasting about a fortnight, almost 
disappearing before the time for hortidanus, which latter comes out 
about the third week in May ; I believe it is common all over the south 
of England, as it is represented in all collections under hortulanus, 
though in the British Museum there happen to be only females, which 
may perhaps account for its having been overlooked. There is certainly 
no species described by Meigen, Macquart, Loew, or Zetterstedt, with 
which this can be identical, nor can I find a single description of liorho- 
lanus but what says " alhopilosus " or its equivalent ; I call it anglicus, 
not that I approve of local names, but I think it suits well here in op- 
position to siculus, and even supposing it should eventually be found on 
the continent, it will show that the species was first noticed in England, 
and is abundant here. 
Denmark Hill, London : March, 1869. 
DESCRIPTIONS OF SPECIES OF LEPIDOPTEBA, CONFOtJNDED WITH 
OTHERS DESCRIBED BY LINN^US AND FABRICIUS. 
BY ARTHUR G. BUTLER, F.L.S.; Assistant, Zoological Vepartment, Brit. Mtts. 
The following species are some that I have determined during the 
preparation of a Catalogue of the .WioprrJocem of Fabriciui^ : ]naiiy of 
the errors committed being due to the fact of some authors having 
