47 
in meadows, but not on mountain tops ; they do this especially on 
sultry, thundery clays, in the sun after downpours of rain, or early in 
the morning." 
Tabanus sudeticus, Zlr. 
Plate 20. 
The British specimens of this fine species in the Museum collec- 
tion consist of one male (length 2o| mm.) and thirteen females ; the 
length of the latter ranges from 20 1 , to 2/{\ mm. ; the wing-expanse 
of the largest female is 48 mm. In view of the particulars as to this 
species already given (see T. bovinus), it is now only necessary to 
refer to the localities and dates of our specimens. Brauer (Joe. cit., 
p. 185) states that in Austria T. sudeticus ison the wing much later in the 
year than T. bovinus, and that while the latter occurs in May and until 
the middle of June, the former is met with at the end of June and 
throughout July and August. In the British Islands, however, the 
time of flight of the two species would seem to be pretty much the 
same. The localities and dates of the British specimens of T. sudeticus 
in the Museum collection are as follows: — Brodie, Elgin, N.B., 
August 2nd, 1905 {Lieut. -Colonel Yerbury) ; Nethy Bridge, Inverness- 
shire, N.B., July 8th and 9th, 1905 {Lieut. -Colonel Yerbury) ; Drimmin, 
Sound of Mull, Argyllshire, N.B., 1904 (Miss Henrietta Brown) ; 
Birnam, Perthshire, N.B., August 25th, 1894 (H. S. Barr); Goat Fell, 
Arran, N.B., June 20th, 1893 (S* r G. F. Hampson, Bt.) ; Felden, 
Boxmoor, Herts, July 7th, 1893 (A. Piffard) ; Budshead Wood, 
S. Devon, July 1st, 1889 ($), and Walkham Valley, S. Devon, 
July 31st, 1896 (Lieut. -Colonel Yerbury); Kenmare, Co. Kerry, 
Ireland, June 28th, and July 7th and 10th, 1901 (Lieut.-Colonel 
Yerbury); and Glencar, Co. Kerry, August 16th, 1901 (Lieut.-Colonel 
Yerbury). 
Colonel Yerbury writes : — " Tabanus sudeticus, Zlr., was the 
commonest horse-fly at Kenmare in July, 1901 ; in Scotland it 
seems to be rather an uncommon species. T. sudeticus and T. bovinus 
