5. sirex. 383 



C. Indian > 



1 1 . Sirex imperialis. 

 (Plate XV. fig. 5.) 



Exp. al. 1 poll. LO lin.. long. corp. 1 poll. 2 lin. 



Uniform steel-blue, shining; wings '-hyaline, with black 



nervures, and strongly iridescent ; second brachial cell with com- 

 plete inner cross line. 



ffab. India. 

 a. $. (Typi North India. ('apt. Boyes. 



l_. Sirex xanthus. 



i rim- xv. fig. :.) 



i xanthus, Cameron, Trans. Ent. v . Lond. 1870, p. 171. 



I [). al. 1 poll. I 11 lin.. long. Corp. 1 poll. 3 lin. 



I • yellow : antenna and abdomen rufo-testaceous ; ocelli, 



an impressed line on the vertex behind them, a spol between the 

 antenna?, tips "t mandibles, the front and sides of the mesothi 



tathorax, and the pectus black, with a 1 rge yellowish spol 

 on the sides in front. Sides of abdomen brown, visible above on the 

 of the termin in front. Wings deep yellowish hya- 



line, with reddish-brown nervures d brachial cell with no inner 



cross line. 



Hab. India. 

 . (T\ pe. i V' guud. ( 'apt. Laing. 



1 1. . lustraluai Si ■ 

 hi. Sirex australis. 

 (Plate XV. fig. 12.) 



i p. al. 1 poll. I lin.. long. corp. 1 I lin. 



Head blue, thorax and firsl segment of the abdomi nish 



blue, remainder of abdomen bronzy violet. Head and basal seg- 

 ment of abdomen finely punctured, thorax more coarselj so ; protho- 

 rax and cheeks densely hairy : an1 with the basal half luteous, 



and the terminal halt' piceous, the division between the colours not 

 sharplj defined; under surface of body duller blue: base of ovipo- 

 sitor luteous ; coxae violet ; legs hit eons. Wings hyaline, yellowish 

 hyaline beyond the middle: Becond radial cell with the transverse 

 nervure only extending half acre--. 



Allied to s '. juvi ncus. 



Hah. Australia. 



a. 2' (Typ 1 Australia. J. Macgillivray. 



