458 R. OSTEN SACKEN 



upper portion of the metanotum , which looks like a second 

 scutellum. The body is more slender than that of Calobatu; the 

 anterior part of the thorax, from a side-view, has the shape of 

 a cone ; the legs are more slender than in Calohata and the 

 middle and hind femora are longer ; the very long middle fe- 

 mora have some minute spines on the underside , towards the 

 tip ; on the hind femora the spines are almost imperceptible. 

 Venation of Calobata; but first posterior cell much less coarctate 

 towards the end ; the end of the second vein is more than 

 twice as near the apex of the wing as the posterior crossvein 

 (the venation, in this respect, is hke that of Calobata lipubides 

 Wk.). — The ventral forklike appendage of the male has ra- 

 ther long prongs ; the male genitals are comparatively small ; 

 the ovipositor is tubular , short and does not differ much in 

 appearance from the preceding segment. 



Nestima polita n. sp. J'^. Dark brown, shining, wings uni- 

 formly tinged with brown. Length 12-13 mm. 



Head brown, shining; front yellowish-red, with an opaque 

 black spot in tlie middle ; antennae brownish-red ; upper edge 

 of the third joint brown ; arista pubescent ; palpi brownish. 

 Thorax uniformly dark brown, shining. Abdomen brown , but 

 less dark than the thorax. Halteres with a yellow knob , stem 

 brown. Front femora and coxae brownish red, the femora with 

 a pale brown ring before the tip ; front tibiae brown in the 

 middle ; the base yellowish, the tip whitish ; front tarsi yello- 

 wish-white ; two last joints brown. Middle legs reddish brown, 

 the tibiae and tarsi darker. Hind legs brownish-red ; tip of 

 tibiae and the tarsi brown. Wings with a uniformly brown 

 tinge. First posterior cell broadly open. 



Hab. Andai, N. Guinea, Aug. 1872 (L. M. D-Albertis); Ha- 

 tam, N. Guinea, July 1875 {Beccari). — Two i/, one 9. 



