REVISION OF LEUCOSPIDAE 223 



on pronotum, mid and fore tibiae and all tarsi yellow; larger one has, in addition, interrupted 

 cross-streak anteriorly on pronotum, smaller dorso-apical and larger ventrobasal maculae on 

 hind femur, narrow vertical lines laterally on two-fifths of gastral carapace and apical elongate 

 maculae sublaterally. Gaster otherwise as in M. davaforme; second tergite medially about as 

 long as broad at base; hairs on lower half of apical depression of carapace directed towards 

 median line. 



Biology. Host unknown. 



Distribution. Liberia, Nigeria, Cameroun, Zaire. 



Holotype $, Liberia: Monrovia, 1926 (/. Bequaert) (MRAC, Tervuren). 



Paratypes. Liberia: Du River, Camp No 3, 1926, 1 $ (J. Bequaert) (BMNH). 

 Nigeria: Lagos, Ikoyi Park, i. 1973, 1 <J (/■ C- Deeming) (BMNH). Cameroun: 

 Mabete Victoria, v.-vi. 1949, 1 6* {B. Malkin) (CAS, San Francisco). Zaire: 

 Mayumbe, Makala Ntete, iii. 1922, 1 <$ (H. Schouteden) (MRAC, Tervuren). 



Micrapion richardsi sp. n. 



(Text-figs 264, 265) 



§. 4* 7-5*0 mm. Black, with red anterior margin and sides of pronotum, tegula, prepectus, 

 upper part of thoracic pleura including upper epimerum, apex of propodeum and slightly hind 

 femur; pale yellow markings: anterior (subinterrupted) and posterior cross-lines of pronotum 

 reduced laterally, faintly hind margin of scutellum, broadly interrupted band on fourth tergite, 

 narrow apical band on fifth tergite crossing sheaths below middle, narrow dorsal edge of fore 

 and mid tibiae, ventro-basal streak on hind femur and smaller one dorsally at knee, mid and 

 hind tarsi basally. Fore wing with moderate infumation along postmarginal vein, darker in 

 angle of stigmal vein, and apical fifth. 



Head distinctly broader than pronotum (39 : 35); lateral ocellus nearly 1-3 times its long 

 diameter from eye margin, median ocellus more than half its diameter from scrobal carina; 

 POL nearly 2-5 times OOL; sides of scrobes rather strongly converging upwards. Eyes even 

 at strong magnification without distinct pubescence. Relative measurements: breadth of head 

 85, its length 43, height 76, breadth of frontovertex 52, scrobes 30, lower face 29, its height 37, 

 eye 43 : 34, malar space 20, mouth 22. Inner margins of eyes distinctly converging downwards, 

 excision (above) distinct but not deep. Clypeus fairly convex but at lower margin abruptly 

 depressed and flat. 



Pronotum with distinct diverging discal depressions (Text-fig. 265). Otherwise thorax as 

 in M. congoense, as well as legs and gaster, except for the following. Terminal processus of 

 stigmal vein of fore wing barely developed (Text-fig. 264). Fifth tergite with ovipositorial 

 furrow not reaching apex of fourth tergite, elevated auricles at apex of furrow distinct although 

 lower than in M. congoense and slightly nearer to fourth tergite, at about four-sevenths of 

 distance between base of sheaths and apex of that tergite. Sheaths about 0-82 length of hind 

 tibia. 



tj. 5-4 mm. Very similar to $; whitish is scape beneath, an interrupted cross-line anteriorly 

 on pronotum and ventro-basal streak on hind femur, but hind margin of pronotum and 

 scutellum black, as well as gaster. Also similar to <$ of M. biimpressiim, but different in having 

 eyes virtually bare (not worn off!) and apical half of gaster dorsally slightly more sloping, with 

 hairs on lower half of subapical depression distinctly directed upwards. 



Biology. Reared from Ceratina sp. 



Holotype $, Ghana: Legon, nr Accra, ex Ceratina cell, coll. 20. iii., emerged 

 iv.1969 (0. W. Richards) (BMNH). 



