o04 On Three new Species o/'Olbiogaster, O.-S. 



vello\Y ; femora yellow ; libige dark brown, with some 

 slender short black bristles on the under sides, spurs yellow ; 

 tarsi blackish. Wings ))ractically hyaline, the stigma dark 

 brown J venation as in O.sackeni. /7a^/e?res with yellowish 

 stem and dark knob. 



? . Kesembles the male, except that the mesothoracie 

 scutum is brown in the middle; the yellow apical margins 

 to the abdominal segments are obsolete, although the white 

 pubescence is conspicuous ; the abdomen is narrowed towards 

 the tip instead of having segments 6 and 7 expanded. 



Length (without antennae) 7-8 mm. 



ASHANTI : 2 ^ (including type), 2 ? from Obuasi, 7. vi., 

 24. vi., 5.vii., and 1.x. 1907, caught on leaf and on window 

 {Dr. W. M. Graham). IS. NiGEKIA : 1 J, Oshogbo, 

 23. viii. 1910, in house {Dr. T. F. G. Maijer). 



3. Glhiogaster orienfalis, sp. n. 



$ . Head mainly yellow ; a large shining blackish-brown 

 triangular spot on the vertex, with its apex extending down 

 the front almost to the base of the antenna?, and at the level 

 of the ocelli connected with the eyes by a small projection 

 on each side. Clypeus mainly occupied by a round black 

 spot, the margin remaining yellow. Antennje with the two 

 basal joints yellow, the next tliree black (remainder missing) ; 

 first fiageliar joint a little over twice, second and third three 

 times as long as broad, with a veiy short black pubescence. 

 Palpi and labella yellow. Thorax: Prothoravic lobes shining 

 black, except on upper edge, which is yellow. Scutum 

 nuiinly shining black ; margin and a pair of humeral spots 

 yellow ; no long pubescence (possibly denuded) ; lighter 

 brown areas in the middle and on the anterior part of the 

 post-alar calli. Scutellum yellow. Postnotum black, with 

 some long pale hairs. Pleur£e shining black, upper margin 

 yellow, a whitish spot above the middle coxse. Abdomen : 

 segments 1-5 blackish, with large yellow, basal, lateral spots 

 which, except on the first segment, are triangular ; sixth 

 segment black, except that the posterior margin is narrowly 

 white ; seventh segment and ovipositor yellow. Pubescence 

 long and pale on the first segment, short on the remainder 

 and of the same colour as the underlying integument. Legs : 

 Front and middle coxae yellow ; iiind coxaj (wliich are dis- 

 tinctly the shortest) blackish. All the femora and the front 

 tibiae yellow ; the hind femora darkened at the tip ; middle 

 and hind tibire dark brown, lighter towards the base; tarsi 



