December, '13] BRUES: STOMOXYS DISTRIBUTION 471 



parts of Europe by various writers. Any attempt to enumerate these 

 would occupy so much space that they have been omitted. To judge 

 from published reports, the species appears to reach its greatest 

 abundance in middle Europe, particularly in Germany and Belgium, 



Russia. — Portchinskyi in an extended paper on the bionomics of 

 Stomoxys calcitrans mentions its abundance in Russia. His remarks 

 refer especially to the southern part, but seem to be applied very 

 generally to the country as a whole. 



Africa 



Algeria. — Recorded by Bezzi ^ from "Algeria" without further 

 notes. 



The species is evidently not abundant, at least in certain parts of Al- 

 geria and Tunis, as it is not included in Becker's ^ list of Diptera 

 taken by him in this region during the spring of 1906. 



Abyssinia. — Drake-Brockman ■* records a number of interesting ob- 

 servations on the occurrence of Stomoxys calcitrans in eastern and 

 southeastern Abyssinia. He found the species very common in the 

 Hawash Valley and around Mount Fantali, "where they attack camels, 

 horses, mules, cattle and human beings with equal vigour." It was 

 also present over the great Arussi Plateau and in the region about the 

 River Wabi between Seru Abbas and Mount Abuna. At Ginir, the 

 great trading center for eastern Abyssinia, it was very abundant and 

 troublesome, and also in Borana, a great cattle country northwest of 

 Banissa. 



Sudan. — Bezzi ^ lists this species from Asmara- Keren in Sudan, 

 near Khartoum, and Austen® records it from Khartoum and Somali- 

 land. Picard^ cites Bamako in French Sudan, and Roubaud^ the 

 Nigerian Sudan. 



British East Africa. — Austen^ records Stomoxys calcitrans from the 

 East African Protectorate on the basis of specimens in the British 



1 Mem. Bur. Entom. Ceut. Bd. Land Administration & Agric. St. Pctersbmg, 

 Vol.8 (1910). 



2 Bull. Soc. Ent. Ital. XXXIX, p. 92 (1907). 



3 Zeit. Hym. u. Dipt., Vol. 5, p. 372 (1907). 



^ Bull. Entom. Research, Vol. 1, p. 55 (1910). 



^ Bull. Soc. Ent. Ital. XXXIX, p. 105 (1907). 



6 African Blood-sucking Flies, p. 143, London (1909). 



' Bull. Soc. Ent. France, p. 312 (1907). 



s C. R. Acad. Sci. Paris. Vol. 152, p. 1347 (1910). 



8 African Blood-sucking Flies, p. 144, London (1909). 



