REVISION OF LEUCOSPIDAE 219 



beneath, narrow arcuate anterior and posterior cross-lines on pronotum, vertical macula on 

 side of fourth tergite, narrow band at hind margin of fifth tergite, hind femur ventro-basally, 

 dorsal streak on tibiae, all tarsi. Wings slightly infumate, darker brownish at stigmal vein 

 and in apical sixth of fore wing. 



Head distinctly broader than pronotum, in dorsal view twice as broad as long, with temples 

 short and rounded; pronotal protuberances rounded, frontovertex above them not concave; 

 inner orbits of eyes distinctly excised. Occipital carina slightly indicated between ocelli; 

 vertex convex, with impunctate depressions outside of lateral ocelli and in front of median 

 ocellus; puncturation coarse but rugose, not deep, white hairs subdecumbent, conspicuous. 

 Ocellar triangle about 2-6 : 1; POL 2-7 times OOL. Head in facial view 1-16 times as broad 

 as high; facial pubescence conspicuous, dense, silvery; interantennal area broad, rather flat, 

 without distinct keel. Relative measurements: width of head 80, frontovertex 50, scrobes 30, 

 lower face 36, its height 31, eye 49 : 33, malar space 13, mouth 22, scapus 18. Flagellum plus 

 pedicellus slightly longer than breadth of head, distinctly clavate; pedicellus slightly oblong, 

 hardly shorter than first flagellar segment which is slightly longer than the second. 



Puncturation on thorax unusually coarse, dense, only on scutcllum anteriorly with an 

 impunctate space; walls between punctures mostly with distinct minute striation; pubescence 

 not very short, white, conspicuous. Pronotum: hind margin broadly emarginate and distinctly 

 carinately rcflexed; premarginal carina not distinct; sides nearly parallel; lateral panel separated 

 by a ridge, itself rounded-triangular, concave, fully half as high as long before spiracle. 

 Mesoscutum with notaular furrows shallow, broad, distinctly impressed. Scutellum 1-15 

 times as broad as long, weakly convex, coarse punctures arranged only in six transverse rows, 

 last one forming the admarginal row. Dorsellum rather flat, its margin unevenly carinate, 

 dorsum with sparse irregular longitudinal rugae. Propodeum medially about twice as long as 

 distance between apex of obliterated plica and the distinct median carina; pubescence denser, 

 thinner and slightly shorter than on scutellum or mesoscutum. Upper mesopleurum very 

 densely and coarsely punctured and hairy, punctures more irregular and coarser than on 

 metapleurum. Hind coxa anteriorly below lateral edge with dense argenteous pubescence; 

 depression: impunctate streak not reaching base, expanding apically, upper two-thirds of 

 depression punctured, convex dorsal side more densely so, dorsal tooth vaguely indicated. 

 Hind femur rather narrow (Text-fig. 258), rather densely punctured, interspaces rather shiny. 

 Fore wing: apex of stigmal vein rounded, uncus long. 



Gaster hardly constricted behind first tergite, apical part long-oval, all coarsely punctured and 

 with white pubescence, laterally interspaces with transverse striation. First tergite about 

 twice as long as broad, hardly broadening backwards, punctured except for small basal fovea; 

 interspaces smooth, mostly o-3-o-5 as broad as punctures, narrow median line impunctate. 

 Third tergite short, transversely depressed except for raised median line, hind margin barely 

 angulate. Fourth tergite not depressed, with blunt median crest which is finely grooved; 

 slightly shorter than broad, sides of angulate apex arcuate, at top about at 60 degrees (in 

 holotype ; more acutangular in paratype) . Fifth tergite broadest slightly behind middle, dorsally 

 less convex (suggesting submedian depressions), ovipositorial furrow reaching apex of fourth 

 tergite, distinctly regularly carinate throughout. Ovipositor sheaths about 1-25 times as long 

 as hind tibia. The Text-fig. 257 is drawn from the paratype; in the holotype the puncturation 

 is relatively still much coarser and sparser. 



<$. Unknown. 



Biology. Reared from the cell of a solitary bee of the genus Ceratina. 



Holotype $, Kenya: Kiboko, Hunter's Lodge, ex bee cell collected 12. hi. 1971 

 (H. Daly) (BMNH). 



Paratype. Kenya: Rabai nr Mombasa, viii. 1930, 1 $ (van Someren) (BMNH). 



This species, distinctive by its unusually coarse puncturation and carinate 

 ovipositorial furrow, has the sheaths of the ovipositor fairly long, as in the two pre- 

 ceding species, but in some respects seems to form a link with M. clavaforme Steff an. 



