122 z. bouCek 



though low, straight between lateral ocelli, reaching laterad half way between ocellus and eye ; 

 ocell-ocular space with several punctures only, otherwise smooth, also triangular areas laterad 

 of median ocellus smooth ; POL about 2 -3 times OOL. Area between low frontal protuberance, 

 lateral ocellus and eye distinctly convex, interspaces between punctures smooth, distinct and 

 hairs here hardly longer than on face, in dorsal view this area 1-5 times as broad as scrobes 

 which appear as a deep semi-circle; scrobal carina highest above protuberances. Pubescence 

 of eye extremely short; inner orbit not distinctly emarginate. In facial view head about 1-3 

 times as broad as high, with face vertically punctured-rugulose, rugulae narrow but smooth, 

 pubescence not dense. Otherwise relative measurements and other features much as described 

 in L. fallax above. 



Thorax as normal in the group. Pronotal sides parallel, carinae very strong, discal one 

 strongest, both discal and premarginal carinae strongly angulate. Mesoscutum very convex. 

 Scutellum hardly broader than long, hind margin arcuate, set off by crenulate admarginal 

 groove, in front of which interspaces on whitish band nearly as broad as punctures. Dorsal 

 surface of axilla not sharply separated from vertical one, outer corner tooth-like. Dorsellum 

 convex, smooth between rather sparse but coarse piliferous punctures; hind margin not 

 distinctly carinate. Sides of metanotum with a row of alveolae separated by longitudinal 

 carinae. Propodeum moderately convex medially, down to petiolar carina hardly twice as 

 long as dorsellum, depressed inside of plicae which are indistinct as well as median carina; 

 interspaces of punctures narrow but distinct. Legs as normal in the group. For hind leg see 

 Text-fig. 142; puncturation of hind coxa less dense in a streak in upper third of depression and 

 just above blunt lateral edge; hind femur with deep punctures, of medium size, interspaces 

 broader than punctures ; basal tooth broad and about as high as longest of middle teeth which 

 are rather broadly separated. Stigmal vein of fore wing with uncus parallel to postmarginal 

 vein and more than twice as long as terminal processus of stigmalis. 



Gaster (Text-fig. 142) clavate but plump; puncturation on first and fifth tergites with very 

 distinct smooth interspaces though much narrower than punctures; pubescence rather erect, 

 not long. First tergite about 1 -3 times as long as broad, fully three-quarters as broad as fifth 

 tergite which is, in median line, hardly longer than the first. Fourth tergite posteriorly slightly 

 angulate, in middle (where yellow) with a cross-elevation, this interrupted by relatively weak 

 ovipositorial furrow; the furrow deeper but rather broad on fifth tergite. Ovipositor not or 

 hardly reaching anterior third of fifth tergite. Apex of gaster rather blunt, very densely and 

 rather finely punctured. 



$. Unknown. 



Biology. Reared from cells of Osmia globicola Stadelmann, a Megachiline bee. 



Holotype 9, South Africa; Willowmore, 10.xii.1920, ex Osmia globicola, {Branns) 

 (TM, Pretoria). 



Paratypes. South Africa, same data as holotype, 3 $ (BMNH; TM, Pretoria). 



In the form of the head and thorax L. osmiae is very similar to L. varicollis 

 Cameron (as understood above), but the form of the gaster (Text-fig. 142) is different, 

 very similar to that of L. africana Cameron (Text -fig. 123), except that the fourth 

 tergite (in female) is shorter medially, its hind margin less conspicuously angulate 

 and dorsally with shallow but still distinct ovipositorial furrow. 



Leucospis pubescens sp. n. 



(Text-fig. 136) 



9- 7 "O— 1 1 -5 mm. Dark reddish to brownish black, head paler reddish ; pale yellow markings : 

 narrow cross-band anteriorly on pronotum and another on fourth tergite, narrow streak dorsally 

 on hind coxa, broader one ventro-basally on hind femur; usually also epipygium along middle 



