( Ixviii ) 



one. Tt may be noted, howevei', that C rtifiharhis has only 

 been recorded as British within the last few years ; it is 

 possible that, having established itself in this country, it is 

 now ousting Pliaryngomyia picta out of the field. 



" 3. Hypoderma diana, Brauer : the deer Warble fly. — A 

 specimen of this species was taken some years ago in Braemar 

 by the late Dr. Buchanan White, but has not since been met 

 with. This year (from May 30th to June 4th) I found the 

 species not uncommon in some five or six different localities in 

 the Glenmore and Rothiemurchus deer-forests, while I also 

 obtained a pair ( S and $ ) at Golspie, making a total in all 

 of 15 S 6 and 1 $ . At Aviemore all the localities were 

 between 1000 and 1200 ft. altitude, but further north, at 

 Golspie, the places where the insect occurred were probably 

 both under 700 ft. This species has much the same habits as 

 the common Warble fly, H. lineatum., and sits basking itself 

 on the forest roads, appearing to select dark-coloured spots 

 to rest upon. Its time of flight too (after allowing for the 

 difference of latitude) appears to be approximately the same ; 

 e. g. //. lineatum is common in Devonshire, and on the Black 

 Mountain (circa 400 ft. elevation), Hereford shix-e, in the 

 middle of May, about a fortnight earlier, or later, according 

 to the particular year. 



*' The capture of the $ specimen alluded to above seems of 

 sufficient interest to be recoi-ded. A herd of deer were stalked 

 in the hope of capturing a specimen of C. rufiharhis. This 

 herd, instead of going sti-aight away, broke back and * ranked 

 past by files ' at a distance of 150 yards. Consequently I was 

 on the ground passed over by the deer at once, and almost 

 immediately caught a specimen of C. rufiharhis , while a minute 

 or two later I found H. diana, $ , sitting quietly on my 

 knickerbocker stocking, and caught her with my hand. 

 Although Brauer gives both the Bed deer and the Roe as the 

 hosts of this fly, I have some doubts about the correctness of 

 that conclusion, and suspect that it confines its attention 

 only to the former. On the other hand, Roe deer pelts 

 obtained in Scotland are reported to be often w^arbled, so 

 it is an interesting question as to what insect causes this 

 injury." 



