the Two Genera Nusa and Pogonosoma. 211 



Pogonosoma fusifera, $ , Walker. 



Proc. Linn. Soc. Lond. i. p. 12 (1856) {Laphria) ; t. d. Wulp, Col. 



Dipt. S. Asia, p. 89 (1896) {Andrenosoma). 

 [Pogonosoma analis, de Meijere, Tijd. Ent., Suppl. Ivi. p. 53 (1913).] 



This species (a female from Singapore) was correctly- 

 placed in Andrenosoma, but, having the three submarginal 

 cells, it falls into this subgenus. 



De Meijere's species (a male from Java and a female from 

 Sumatra) is evidently identical with it, from the description. 

 In Walker's type, measuring about 15 mm., the first posterior 

 cell is almost closed on one wing and narrowly open on the 

 other, as in de Meijere's types, which measure 18 mm. 



There is a much damaged specimen measuring 25 mm. 

 from Siam (presented by H.R.H. Prince of Champon) in the 

 Brit. Mus. Coll., probably a male, having the last segments 

 of the abdomen foxy red, with the same coloured pubescence 

 as described by de Meijere. 



The female has these last segments blackish, but covered 

 with the foxy-red pubescence. Prof, de Meijere considers 

 Pogonosoma beccarii, Rondani, from Borneo, also with a red 

 apex to abdomen, as distinct from his species, 



Pogonosoma cedrusa, ? , sp. n. 



This specimen was sent me for identification in January 

 1924 by Dr. C. F. C. Beeson at Dehra Dun, stating that it 

 had been bred from wood. He kindly gave me permission 

 to keep it for the National Collection, No species of this 

 subgenus has as yet been described from India, though 

 Pogonosoma fusifera, Walk., is from Singapore, and Pogono- 

 soma funehris, Hermann, is from Formosa (a co-type of this 

 species is in the Brit. Mus. Coll.), and is distinguished from 

 this Indian species by the dull black colouring of abdomen, 

 the incrassate femora, and the darker wings. 



Pogonosoma semtfusca, v. d. Wulp, must be nearly allied 

 to this new species, which is distinguished from it by the 

 brighter blue metallic colouring of the abdomen, the simple 

 hind femora, the shorter ovipositor, and the less well-defined 

 colouring of the wings. 



Type (female) from Fagu, 8000 ft., Simla Hills, 8. iv. 1922 

 (C. F. C. Beeson). Bred from Cedrus deodara. 



A medium-sized species, with purple bluish shining metallic 

 abdomen. Face with black bristles and white hairs. Legs 



