31 
abdomen above of a greyish red-brown in tlie male, black in the 
female; in both male and female with three rows of white or 
white-grey spots. The central row triangular ; the rows (one on 
each side of the central stripe) of oval usually white spots placed 
slantingly from the inner and foremost to the outer and hindmost 
edge of each spot. 
Tabanus bromius, sometimes known as the “ Noisy Breeze Fly,” 
much resembles autumnalis in its general colouring. Like it, bromius 
is of a greyish tint, and has five grey stripes along the thorax, but 
rather more noticeable ; also it has three stripes along the abdomen, 
similarly of a central row of triangular spots, and two slanting side 
rows. In regular course the central row is whitish, the side rows 
yellowish; and this, together with the side of some of the foremost 
segments in the male being more or less of an orange colour, and 
occasionally something of the same tint in the female, gives the fly 
more of a greyish yellow colour than autumnalis; also it is somewhat 
hairy. The main difference, however, is in size ; bromius being only 
about half an inch long, and autumnalis about four-fifths of an inch. 
Tabanus cognatus, Low (= T. glaucopis, Meig.), has eyes with 
two or three purple bands, the ground colour partly grey and green 
in the male, green in the female. 
The length of the fly is three-fifths of an inch or rather more. 
The thorax grey, but bright black on the back, with five pale stripes. 
Abdomen may be generally described as black, with the hinder 
edges of the segments yellow and with a middle stripe, on each 
side of which is a stripe of pale yellow (in the female the middle 
stripe is formed of grey ) triangular spots. 
The cognatus mentioned above is considered by Dr. Brauer to 
be only a variety of the glaucopsis species; in this cognatus (noted 
by Brauer) the thorax is of a darker grey, and the ground colour 
of the abdomen dark-red brown, or chestnut brown to the fifth 
segment; in the female the red-brown ground colour sometimes 
extends to the sides of the second segment observably, otherwise 
the segments black, with smaller and greyer stripe along the 
centre, and pale yellow or orange isolated round side spots. 
Subgenus Atylotus. A.fulvus, Meigen. The “Tawny Breeze 
Fly”; “ Golden Yellow-felted and Orange-powdered kind.” This 
kind is remarkable for its hairy or felted appearance. The length 
is little more than half an inch ; the thorax is strikingly clothed 
with golden yellow hairs; the abdomen has a dark stripe, but is of 
a general reddish-yellow colour, and the hair entirely of a golden 
colour. 
