Cleitamia rivellioides. 



470 R- OSTEN SACKEN 



with a slight bluish-metallic lustre and a microscopic, whitish, 

 erect pubescence. Halteres black. Legs black ; femora y.ellow , 



except their ends ; front coxae 

 yellow. Wings sub-hyaline, with 

 brown crossbands, not unlike those 

 of a Rivellia: the first, nearest to 

 the base, runs obliquely through 

 the second basal cell, along the 

 fifth vein, and before reaching the 

 end of the latter turns to wards the posterior margin (inside 

 of the '0^ post, c.) ; the second, in the shape of a small inverted 

 triangle, coalesces at its base with the brownish-yellow costal 

 cells , fills out the proximal end of the marginal cell, where it 

 is more yellowish-brown, and includes a hyahne spot, and touches 

 with its apex the first band ; the third band, about the middle 

 of the wing, hkewise ends in the first band, at the very point 

 where the latter turns off from the fifth vein ; the fourth covers 

 both crossveins and is prolonged along the costa nearly as far 

 as the fourth vein, in the shape of a narrow brown edge of 

 equal breadth, thus forming a regular half a circle. Length 

 about 8 mm. 



Ilah. Hatam, N. Guinea {Beccavi, 1875); seven females. 



Euxesta prima n. sp. 9 . — Plead , including the antennae , 

 brovvnisli-red ; face but little excavated ; antennae rounded ; 

 arista bare ; vertex black. Thorax and abdomen metalhc-green. 

 Halteres yellow. Legs black ; front coxae and knees reddish ; 



first joint of hind and middle tarsi 



brownish-yellow (in some specimens 



nearly brown). Wings hyaline , with 



the following brown marks ; the costal 



cell is infuscated from the root up to 



a littte beyond the humeral crossvein ; 



the stigma is brown, as well as a nearly square spot between 



it and the fourth vein ; this spot does not include the anterior 



crossvein ; a brown spot at the apex of the wing is bounded 



Euxesta prima 



