5i 
very common in the south of England. The modern British series 
belonging- to the Museum at present consists of two males and 
eleven females from the following localities : Woolmer Forest, Hants, 
June, 1893 {Colonel Irby); Crabwood, Winchester, Hants, July 20th, 
1893 (L. C. Chawner) ; Lyndhurst Road, New Forest, Hants, June 
14th, 1894 {Lieut. -Colonel Yerbury); Fordingbridge, Hants, June nth, 
1897 {Lieut.-Colonel Yerbury'); various localities in S. Devon, June 
1 ith — July 4th {Lieut.-Colonel Yerbury). The Museum general collec- 
tion includes specimens of T. maculicornis from Norway, Brittany 
Germany, and Austria. 
Tabanus cordiger, Mg. 
Plate 25. 
In this species also the head of the male is large, and strongly 
concavo-convex, with a conspicuous area of large facets in the upper 
half of each eye ; the female may be recognised by the exceptionally 
broad front (space between the eyes), and by the shape of the shining 
black callus between the lower angles of the eyes, which is large and 
square, and occupies practically the whole width of the front. Brauer 
(loc. c.it, pp. 201-202) describes the eyes of the male as "grey above, 
green in the lower fourth," with a dark transverse band between the 
large and small facets ; the eyes of the female are stated to be 
unhanded. Two British males of this species are each 14^ mm. in 
length ; seven females measure from 13 to 15 mm. 
According to Colonel Yerbury, Tabanus cordiger is " usually a rare 
insect, but occurs plentifully in the Abernethy Forest, Inverness-shire, 
in July and August." The British series in the Museum at present 
consists of two males and seven females, the localities and dates of 
which are as follows: Nethy Bridge, Inverness-shire, N.B., July 26th — 
29th, 1904 {Lieut.-Colonel Yerbury) ; Braemar, Aberdeenshire, N.B., 
Jul)- 221101/1873 {G. H. Verrall) ; Avon Valley, S. Devon, May 27th 
and 28th, and June 12th and 19th, 1896 {Lieut.-Colonel Yerbury); 
Walkham Valley, S. Devon, July 21st, 1889 {Lieut.-Colonel Yerbury). 
The Museum general collection includes specimens of this species 
