Descriptions of British Diptera. 365 
be very troublesome to the rein-deer. It has been long included in 
our British catalogues, but we have never seen any particular loca- 
lity cited for it. It is most likely to occur in the north of Scotland. 
TABANUS BROMIUS. 
Tab. maculatus, De Geer. Tab. autumnalis, Harris 1 Expos, pi. vii. fig. 4. 
Blackish ; palpi, hypostome, and forehead nearly white, the lat- 
ter in the female with a square glabrous black spot at the base, and a 
line of the same colour in the centre ; the crown black ; antennae 
testaceous, the apex more or less dusky ; eyes green with a trans- 
verse band of bright purple : thorax marked with five whitish lines, 
the hairs grey on the back, but inclining to yellow on the sides ; ab- 
domen with three series of yellow or greyish spots, the dorsal spots 
triangular, the lateral ones rhomboidal or oval, and placed near the 
hinder margin of the segments ; the latter with a white edging ; 
underside of the abdomen greyish-yellow with a broad black band, 
the hinder margins of the segments paler : thighs grey ; tibiae tes- 
taceous with the extremity dusky ; tarsi black ; wing slightly ting- 
ed with grey ; halteres white at the extremity, the rest black. 6-7 
lines. 
Of occasional occurrence in many parts of the country. " Near 
London," Stepk. Catal. " Monkswood and the neighbourhood of 
Bath," Charles C. Babington, Esq. 
TABANUS MONTANUS. 
Meig. Zwei. ii. 55. 
" Hypostome and palpi yellow ; forehead nearly ferruginous, with 
a shining black semicircular callosity, a black line above it, and a 
shining point of the same colour on the crown ; the space between 
this point and the line linear and of a reddish-brown colour : anten- 
nae black, the first joint cinereous, the third inclining to testaceous 
at the base : thorax blackish-brown, with indistinct greyish lines ; 
sides of the breast ash-grey : abdomen brownish-yellow both above 
and below with a broad black line in the centre, which on the up- 
per side bears a series of yellow triangular spots, and beneath is 
sometimes mixed with yellow ; the hinder margins of the segments 
are also faintly edged with yellow : eyes with three purple arches, 
the uppermost extending across the middle : winglets brownish ; 
halteres brown, the apex nearly white : wings clear, with the ner- 
vures reddish-brown : fore- legs with the thighs black, the anterior 
half of the tibiae ferruginous, the hinder part brown : tarsi black ; 
hinder legs with the thighs grey, tibiae ferruginous with the tip 
brown, tarsi dark brown. 7? lines." 
