1881.] MR. KIRBY ON HYMENOPTERA FROM SOCOTRA. 649 



rieures du corps est beaucoup moias jaunatre. Dans I'adulte et dans 

 le jeune les plus longues moustaches n'atteignent pas I'oreille. 



Monsieur Stolzmann anuonce dans sa derniere lettre la capture 

 d'une Belette differente de toutes ces especes, plus grande que la 

 M. macroura et disthicte par quelques details de la coloration, ce 

 qui coufirine I'opinion de M. Tscliudi, exprimee dans sa ' Fauna 

 Peruana,' sur I'existence de plusieures especes de cet genre dans 

 les Andes de I'Araerique meridionale. 



5. On the Hymeaoptera collected by Prof. I. Bayley Balfour 

 in Socotra. By W. F. Kirby, Assistant in the Zoolo- 

 gical Department, British Museum. 



[Received April 23, 1881.] 



The small collection of insects lately made in Socotra by Prof. 

 Balfour, and deposited in the British Museum, contained only six 

 specimens of Hymenoptera, belonging to four species. Of these, 

 two are apparently new to science, and the others are well-known 

 and wide-ranging species, the occurrence of which in the island is 

 in nowise remarkable. 



I proceed to enumerate the species as follows : — 



Apid^. 



1. XyLOCOPA JESTUANS. 



Apis cesiuans, Linn. Syst. Nat. i. p. 5/9. no. 37 (1758). 

 A well-known and widely distributed East-Indian species. 



Vespid^. 



2. Belenogaster saussurei, sp. n. 

 Exp. al. li in. ; long. corp. II lines. 

 Not closely allied to any known species. 



Head, antennae, prothorax, scutellum, postscutellum, legs, and 

 abdomen of a lively chestnut colour ; meso- and metathorax, sides 

 of pectus, and segments 2 and 3 of the abdomen black. The pro- 

 thorax is indistinctly and narrowly bordered with yellowish ; and 

 the mouth-parts are more or less yellow in the male. The first seg- 

 ment of the abdomen is distinctly bordered behind with yellow, most 

 broadly on the upper part of the sides. The thorax, scutellum, &c. 

 are finely punctured ; and there are three very shallow longitudinal 

 grooves on the mesothorax, and a more distinct groove in the 

 middle of the metathorax. Wings smoky brown, with iridescent 

 reflections ; nervures brown or reddish brown ; yellowish towards the 

 base and along the costa and inner margin of the fore wings. 



POMPILID^. 



3. Mygnimia extranea, sp. n. 



Exp. al. 2 in. 1 line to 2 in. 6 lines ; long. corp. 1 in. to I in. 

 5 lines. 



Proc. Zool. Soc— 1881, No. XLII. 42 



