10. PERGA. 27 



Section ii. 



Antennae 6-jointed ; joints 3-5 so short that the club appears to spring 

 almost immediately from the antennal tubercle. Abdomen rarely 

 pointed, generally obtusely truncated at the extremity ; hind 

 femora more or less swollen. 



34. Perga belinda. 



(Plate II. fig. 3.). 



Exp. al. 1 poll. 1 lin., long. corp. 9 lin. 



Has a close superficial resemblance to P. lewisii. Testaceous, 

 shading more or less into yellowish on the middle of the mesothorax 

 and on the scutellum ; antennae and an oval spot behind each eye 

 blackish ; lateral ridges of thorax reddish brown ; abdomen rather 

 pointed, shading into shining reddish chestnut towards the extremity, 

 and with obsolete yellow spots on the sides. Undersurface yellowish 

 testaceous, hind femora considerably dilated; hind femora, hind 

 tarsi, and terminal half of hind tibise reddish chestnut. Wings 

 hyaline, costa and stigma reddish, nervures yellowish; first sub- 

 marginal nervule nearly obsolete, giving it the appearance of having 

 only three submarginal cells, of which the last is much larger than all 

 the rest together, and bounded towards the base by an angulated 

 nervule. 



Hab. South Australia. 

 a,b. 2- (Typ es of species.) S. Australia. F. G. Waterhouse, Esq. 



35. Perga vollenhovii. 



Perga vollenhovii, Westw. P. Z. S. 1880, p. 365, pi. xxxiv. fig. 5. 

 Hab. Australia. 



36. Perga ritsemae. 



Perga ritsemei (!), Westw. P. Z. S. 1880, p. 365, pi. xxxiv. fig. 7. 

 Hab. South and West Australia. 

 a. $ . Swan Eiver. Mr. Du Boulay. 



37. Perga dubia. 



(Plate II. fig. 9.) 



Exp. al. 9-10 lin., long. corp. 6 lin. 



Head black above ; cheeks, two spots on the vertex and two at the 

 base of the antennae testaceous, face and antennas rather darker. 

 Thorax black above, the usual elevations grooved ; a central spot, the 

 sides of the thorax, and the scapula and scutellum testaceous ; pectus 

 deep black ; the prothorax and two large spots under the wings tes- 

 taceous ; legs rather darker. Abdomen testaceous ; first segment 



