444 Mr. W. F. Kirby's descriptions of 



Genus I. Liacos, Guei\ 

 (No new species described.) 



Genus II. Diliacos, Saiiss. d- Sich. 



Diliacos diihia, Smith. 



Scolia duhia, Smith, Journ. Linn. Soc, Zool., vii., 

 p. 28 (1863). 



Smith describes a male from Ceram. The British 

 Museum possesses three females, alHed to D. insularis, 

 Smith, which I regard (in the absence of the male) as 

 probably belonging to D. duhia. One of them, from 

 Ceram, was incorrectly Isihelled fulgidipemiis ; the other 

 two are from the Solomon Islands. 



Diliacos fulgidipennisy Smith. 



Scolia fulgidipennis, Smith, Journ. Linn. Soc, Zool., 

 iii., p. 132 (1859). 



This insect is referred by Saussure & Sichel (Cat. 

 Scol., p. 109) to Discolia, and was placed in the section 

 with yellow antenna. Smith, however, expressly refers 

 the species to Diliacos, and describes the flagellum as 

 obscure rufo-fuscous. The species is represented in the 

 British Museum by a male and female, of which the 

 female agrees best with Smith's description, and may 

 provisionally stand as representing his species, although 

 the antennae are dark brown or black. The wings are 

 brilliant coppery green. The male, on the other hand, 

 agrees better with a female from New Guinea (unnamed 

 in the collection), though Smith says the sexes scarcely 

 differ. The punctuation is, however, so different that 

 I have decided to regard it as a distinct species. 



Diliacos eximius, n. s. (PI. XV., fig. 1). 



Long. corp. 27 mm. ; exp. alar. 46 mm. 



<y. Black, clothed with hair, most thickly on the prothorax, 

 the sides of the metathorax and abdomen, and on the legs ; clypeus 

 densely and closely punctm'ed in rows on the sides, nearly smooth 

 on the median carina ; thorax and abdomen covered with very fine 

 crowded punctures, thorax black, mesothorax slightly shining, 

 abdomen sUghtly iridescent, front legs with the curious clavate 

 tibial spur, and the tufts on the inside of the tarsi rufous ; wings 



