10. PEKGA. 29 



41. Perga jurinei. 



Perga jurinei, Westw. P. Z. S. 1880, p. 378, pi. xxxvii. fig. 6. 

 Hah. Australia. 

 a. <$ . Australia. Purchased. 



42. Perga mayrii. 



Perga mayrii, Westw. P. Z. S. 1880, p. 378, pi. xxxvii. fig. 7. 



Hah. Swan River. 



43. Perga dentata. 



(Plate II. fig. 13.) 



Exp. al. 1 poll. 3 lin., long. corp. 8 lin. 



Head dull yellow ; antennae black, except the basal joint ; vertex 

 mostly black, but the ocelli yellow. A median black line, with a 

 longitudinal depression on each side, runs to the occiput, and other 

 black lines run behind the eyes. Thorax dnll black, coarsely punc- 

 tured, the front ridge with a central depression, but the lateral 

 ridges not grooved ; scapulae and hinder part of the thorax bordered 

 with yellow ; scutellum yellow, indented both before and behind. 

 Abdomen shining violet-black. All the undersurface of the body 

 yellow, except the pectus and the central portion of the abdomen ; 

 on the sides of the abdomen the violet projects into the yellow at 

 the hinder portion of each segment, giving the markings a saw-like 

 appearance. Pore wings smoky yellow, with the costal cell, stigma, 

 and nervures brown ; hind wings vitreous, slightly clouded towards 

 the extremity. 



Hah. South Australia. 



a. 2 - (^ yP e °f species.) Adelaide. Purchased. 



44. Perga rufomaculata. 

 (Plate II. fig. 12.) 



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



Allied to P. dentata. Yiolet-black above, head and thorax much 

 less thickly punctured with shallow depressions. Head with the 

 cheeks, two large spots on the vertex, two on which the antennae 

 are placed, and one on each side, and the face and undersurface 

 yellowish or reddish ; antennae reddish, club darker. Thorax with 

 the scapulae, sides, and scutellum red. The front ridge of the thorax 

 edged behind with a thick red Y, the ends of which extend to the 

 scapulae, and there are also two smaller red spots in front of the 

 scutellum. Pectus, legs, and sides and undersurface of abdomen 

 red. Wings vitreous, smoky yellow towards the extremities, 

 reddish towards the base and inner margin ; nervures, costa, and 

 stigma blackish, and stigma edged with reddish. 



Hob. South Australia. 

 a. 2 • (Type of species.) Adelaide. Purchased. 



