47 



in meadows, but not on mountain tops ; the}' do this especiall)- on 

 ■sulti-}', thundery days, 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 2oi to 24I mm. ; the wing-expanse 

 of the largest female is 48 mm. In view of the particulars as to this 

 species already given (see T. boviiius), it is now only necessar_\- to 

 refer to the localities and dates of our specimens. Brauer {/oc. cit., 

 p. 185) states that in Austria T. sudeticus ison the wing much laterin the 

 }'ear than T. boviniis, and that while the latter occurs in Ma\- 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. sitdcticns 

 in the Museum collection are as follows: — Brodie, Elgin, N.H., 

 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 Brozvn) ; 

 Birnam, Perthshire, N.B., August 25th, 1894 {H. S. Barr); Goat Fell, 

 Arran, N.B., June 20th, 1893 {Sir G. F. Hatnpson, Bt.) ; Felden, 

 Boxmoor, Herts, July 7th, 1893 {A. Pijfard) ; Budshead Wood, 

 S. Devon, July ist, 1889 {$), and Walkham Valley, S. Devon, 

 July 31st, 1896 {Lieut-Colonel Yerbury'); Kenmare, Co. Kerr\-, 

 Ireland, June 28th, and Jul}' 7th and loth, 1901 {Lieut-Colonel 



Yerbury); and Glencar, Co. Kerry, August i6th, igoi {Lieut.-Colonel 



Yerbury). 



Colonel Yerbur)' 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 d^nd T. bovinus 



