10. PKBGA. 21 



the whole apical half of the wing clouded with smoky yellow, 

 darkest at the line of demarcation, which forms an ill-defined band : 

 hind wings paler than the fore wings; apical half clouded with 

 brown. The first transverse nervule on the fore wings is marked 

 with a bulla, or is wholly obs dete ; and one or two other nervures 

 are also marked with bulla 1 , which do not appear to be uniform. 

 A second specimen is rather smaller and lighter coloured. 



This species may be distinguished from P. polita by the different 

 colouring of the wings and by the eoncolorous scutellum. 



Hab. > S ruth Wales. 



a. $. (Typ. Syd .Mr. Lambert. 



b. 2 ■ Sydney. 



6. Perga kirbii. 

 (Plate II. fig. 2.) 



Perga kirbii, Leach, Zool. Misc. iii. p. 117. n. 8 I L816) ; Wesho. P. Z. S. 

 1--". p. 371, pi. xxxvii. t r. 1. 



Exp. al. 1 poll. 7 lin., long. corp. 1 1 lin. 



Eead and thorax dull cac rax with the frontal and 



lateral ridgefl slightly raised, bul distincl and grooved, darker than 

 the ground-colour ; tip of jaws black. Abdomen reddish chestnut 

 above, shining. Scutellum < as, with a distinct longi- 



tudinal groove in the centre. The whole undersurface of the body 

 ous. Wings hyal pma, and nervures yellowish. 



• sely allied to P. hlugii, but. independently of its different 

 colouring, the cutellum and clear hyaline wings will at 



once distinguish it. the scutellum in P. hltigii having merely a 

 shallow depression in the mid 



the male only was previously known, I have described and^ 

 figured the female. Leach's type is in the Hope Museum at Oxford. 



Ihii.. Australia. 

 a. $ . Swan Rr Mr. Du Boulay. 



7. Perga polita. 

 (Plate II. fig. l.i 



Pergnpoh- . / \i c. iii. p. 115, n.l, pi. 148. fig. 8 (1817) ; 



Wcstw. P.Z. S, 1880, : 



Exp. al. 1 poll. 3 lin. ad 1 poll. > lin., long. corp. 8-10 lin. 



Sead testaceous above ; vertex reddish in the middle; antennae, 

 labium, and clypeus yellow; jaws reddish, tipped with black. 

 Thorax reddish brown ; Bcapulse, collar, a V-epot in the middle and 



on each Bide above, and the pleura and the sides of the pectus 

 yellow. Scutellum smooth, yellow, bisected by a groove throughout 

 its whole length. Abdome □ shining chestnut, mottled with blackish 



