Australia and the Fiji Islands. 217 



callus blackish, quadrate, reaching the eyes, with a lineal 

 extension, covered with grey tomentum. Ocelli distinct. 

 Thorax and scutellum reddish brown, with white short 

 pubescence and some grey tomentum anteriorly on thorax. 

 Abdomen blackish brown, with a broad median stripe of 

 grey tomentum and grey segmentations, and scattered 

 white hairs on stripe and segmentations; underside dark, 

 with grey segmentations. Legs with some brown colour 

 on the femora and on apices of tibiae and tarsi ; pubescence 

 white, with «ome black on tibiae and tarsi. Winys clear, 

 veins yellowish. 



Silvius indistiiictus, Ricardo, Ann. & Mag. Nat. Hist. (8) xvi. 

 p. 262 (1915). 



Two females from Melville Island, N. Australia {W. D. 

 Dodd) . 



Five females from Bathurst Island, Northern Territory. 



One female from Coen Eiver, Cape York Peninsula, 

 N. Australia {W. D. Dodd). 



Ectenopsis australis, (^ $ , sp. n. 



Male (tyi'c) from Milson Island, Hawkesbui-y Ilivcr. 

 Ihis type is not in the Brit. iMus. Coll. 



Female (type) from Sydney (C GiLbons), 16. 12. 14. 



A species nearly allied to Ectenopsis vvlpecula, Wicd., but 

 distiiiguisihed Irom it by the very distinct stripes on thorax 

 and by the darker, not uniform, colour of abdomen and of 

 the face. The legs, which, however, appear to be variable 

 in colouring in the typical species, are here reddish yellow ; 

 the tarsi dusky. 



Female. — Face aud forehead chamois-coloured, with some 

 grey tomentum. Atitennce with the first two joints pale 

 reddish yellow with black hairs, the third joint with tlie 

 first division raw-sienna in colour, the next two divisions 

 dusky with grey tomentum, and the remainder blackish. 

 Thorax covered with yellowish-grey tomentum, with a 

 narrow median brown mahogany siripe, becoming broader 

 beyond the suture, and a broad one of the same colour 

 at each side. Scutellum uniform brown mahogany-colour. 

 Abdomen the same colour, with paler grey tomentose seg- 

 mentations, developing on the second, third, and fourth 

 segments into triangular median spots ; underside almost 

 a uniform paler shade. Appendix of wing lonu'. 



The male is similar, but the triangular median pale spots 



