422 Mr. G. H. Verrall’s Notes on Syrphide. 
14. Humerus lunatus. 
“ Syrphus lunatus? Fabr., Ent. Syst., iv, p. 296, 64. 
Rare, only three specimens taken. It sits on the stems 
of Salvadora persica and is difficult to catch, as it keeps in 
the thick of the bush.” 
The specimens are all males, and, I think, correctly 
named. Wiedemann has redescribed the species (Auss.- 
eur. Zweifl., u1, p. 111). 
15. Humerus obliquus. 
“ Syrphus obliquus, Fabr., Syst. Antl., p. 194, 28. 
ew 
Rare ; three specimens taken in Aden, 15.2.95. 
This species has been redescribed by Wiedemann (Auss.- 
eur. Zweifl. ii, p. 112) and again by Loew (Dipt. Siid- 
Afrik.), wherein Loew accidentally in his diagnosis says 
“« fronte nigro-pilosa”’ instead of albo-pilosa. 
