52 
from Hungary, Corsica, Cyprus, and Biskra, Algeria. Additional 
localities given by Brauer show that it extends throughout Central 
and Southern Europe, and is also found in Asia Minor. 
Tabanus glaucopis, Mg. 
This species, of which the Museum at present possesses no British 
examples, resembles Tabanus bromius, but may be distinguished by 
the presence of a fairly broad and conspicuous yellow edging to the 
abdominal segments. The other abdominal markings are also 
yellower, and a further character for the recognition of the females is 
afforded by a conspicuous and rather broad median black callus on 
the front, above the callus between the lower angles of the eyes, with 
which it is not connected. The head of the male in shape and size is 
similar to that of the foregoing species ; according to Brauer {lot. cit., 
p. 199) the facets in the upper three-quarters of the eye are about four 
times larger than those in the lower quarter. The colour of the eyes 
of the male is described by Brauer as " grey, dark at the margin, green 
below, with a purple shimmer ; in the lower fourth with three purple 
bands, the uppermost of which is divided towards its inner extremity." 
Brauer describes the eyes of the female as " green, red above towards 
the vertex and on the lower margin, in the centre with three curved 
and yellow-bordered purple bands." The length of the male is stated 
by Brauer as i6 - 5 mm., that of the female as from 16 to 18 mm. 
Nine Continental females in the Museum collection vary in length 
from 13I to 16 mm. 
The geographical range of Tabanus glaucopis includes Central and 
Southern Europe. The Museum possesses specimens from Brittany 
the South of France, Spain, and the Tyrol. 
