390 Mr. T. D. A. Cockerell — Descrijjtions and 



plumose hairs; legs creamy white; no black markings on 

 thorax,, legs, or abdomen. 



^ . — Length less than 4 mm. 



Like the female, but without the dark facial foveee ; hind 

 tibiae very long and slender. 



Hab. Purnong, near Murray River, S. Australia (S. IF. 

 Fulton). Nine specimens from the National Museum of 

 Victoria (143, 211, 144). 



Entirely unique by the pale yellow colour, without dark 

 markings. The type is a female. This appears to corre- 

 spond, in the Australian fauna, to the yellow species of 

 Perdlta in the American, and probably, like those, it frequents 

 yellow flowers. 



Euryglossina fultoni, sp. n. 



9 . — Length 3-4 mm. 



Broad, black, with the usual broad face ; moderately 

 shinhig, with hardly any pubescence ; labrum ferruginous, 

 mandibles paler, with darkened tips; fiagellum short and 

 thick, rather dilute reddish brown above, very pale yellowish 

 below ; tubercles pellucid whitish ; tegulse hyaline, with a 

 cream-coloured patch. Wings clear, brilliantly iridescent, 

 the large stigma and nervures rufo-fuscous ; b. n. very 

 strongly arched ; lower side of the long first s.m. nearly 

 straight; first r, n. joining first s.m. some distance before 

 end;" second s.m. small, narrow, its upper side strongly 

 oblique (the venation approaches that of Pachyprosopis). 

 Legs black basally, but the knees and all the tibise and tarsi 

 cream-colour, the hind tibise with a large black patch behind. 

 Abdomen shining, w^ithout bands or markings. Under the 

 microscope the mesothorax is minutely tessellated, with 

 scattered punctures. The linear facial fove?e run parallel 

 with the inner orbit, without any bent portion above. Tiie 

 tibife and tarsi in some specimens are bright yellow. Claws 

 simple. 



^ . — Length about 2| mm. 



Like the female, but face up to level of top of scape, 

 labrum, mandibles, and a broad band on lower half of cheeks 

 bright chrome-yellow ; antennpe chrome-yellow ; sides of 

 prothorax broadly, as well as tubercles, creamy white ; ante- 

 rior part of pleura pale ; legs yellow, the femora with dark 

 markings ; extreme apex of abdomen pale yellowish. 



Hab. Purnong, near Murray R., S. Australia {S. W. 

 Fulton). Sixteen females and one male (Nat. Mus. Vict., 

 210, 228, 231, 141, 142, 229, 212). The type is a female. 



