364 Descriptions of British Diptera. 
wise with a white spot on each side, having a faint bluish reflexion, 
and a white triangular point in the centre ; the hinder margin is like- 
wise narrowly edged with white : legs black ; the anterior tarsi of 
the male with fascicles of rather long hairs on the outer side ; hal- 
teres t nearly the colour of the abdomen; winglets paler; wings 
greyish brown, the anterior margin, stigma, and transverse nervures 
somewhat darker. 7 lines. 
A scarce species ; it has been found in the London district. 
TABANUS VITTATUS. 
Fab. Meig. Zwei. ii. p. 40. 
Prevailing colour dusky brown ; antennae grey at the base, the 
terminal joint rufous ; hypostome greyish ; forehead likewise of that 
colour, the vertex pale brown : thorax thickly covered with yellowish 
grey pubescence, slate-grey, with a wide brown line in the centre 
extending over the scutellum, and another on each side somewhat 
interrupted in the middle ; sides of the scutellum slate-grey, the 
surface pubescent like the thorax : abdomen blackish-brown, clothed 
with short yellowish pubescence, and two greyish-white stripes, ex- 
tending from the base to the apex : underside ash-grey, the abdo- 
minal segments narrowly edged with yellow : thighs cinereous, ti- 
biae and tarsi yellowish : wings greyish, with dark-brown nervures ; 
halteres grey, with the stalk yellow. 5 lines. 
The only notice of the occurrence of this species in Britain which 
we have seen is that sent us by Mr Babington, who states that he 
found it in Monkswood, Hunts, June 1*7, 1828. 
TABANUS TABANDINUS. (s ?) 
Hypostome brownish- yellow, with a shining black point in the 
centre : antennae rufous, the palpi rather paler, with the apex brown : 
forehead of the female rufescent, having a black spot on the crown, 
a larger one in the middle, and three others over the base of the an- 
tennae : ground colour of the thorax black, the surface clothed with 
reddish-yellow hairs : abdomen deep black, with a band of golden- 
yellow hairs across the hinder margin of each segment, the bands 
widening gradually on the hinder segments till they nearly cover 
the surface ; underside of the abdomen likewise with yellow bands, 
but narrower than those of the surface, the first segment entirely 
black : halteres brown ; winglets yellowish ; wings pale brown, the 
anterior margin and nervures brown, the latter margined with a 
paler colour : legs rufous, the thighs almost entirely brown. 9 lines. 
The native country of this species is Lapland, where it is said to 
