84 Z. BOUCEK 



Thorax very densely reticulate-punctured, thin pubescence extremely short. Pronotum 

 without carinae, convex; hind margin broadly emarginate, sides distinctly converging and 

 subsinuate; lateral panel less densely punctured, fairly depressed, lower corner nearly right- 

 angular, rounded. Mesoscutum without distinct depressions, almost regularly punctured; 

 vestiges of parapsidal furrows about as long as distance from lateral margin. Scutellum 

 i •20—1-25 times as broad as long, regularly moderately convex, puncturation leaving narrow 

 and nearly smooth interspaces on disc; axillar sutures strongly converging, dorsum of axilla 

 depressed, slightly sloping. Dorsellum (Text-fig. 98) non-metallic, bare, alveolate, faint 

 median carina separating nearly circular halves reminding one of wings because of sublamellate 

 lateral margin; margin shorter and lowered medially. Propodeum medially about 1-7 times as 

 long as dorsellum, here strongly elevated with high median carina forming a subrectangular 

 tooth posteriorly; coarse hairs diverging sideways from carina; plicae distinct but low anteriorly. 

 Femoral depression of mesopleurum fairly deep, convex part densely punctured, interspaces 

 smooth. Legs rather slender. Fore femur dorsally distinctly edged, fore tibia dorsally and 

 ventrally rounded. Hind coxa densely punctured, but pubescence very short; dorsal edge 

 relatively narrow, posteriorly with thin translucent subrectangular tooth; depression rather 

 flat, densely punctured except narrowly at apex behind tooth ; lateral edge with thick pubescence, 

 at edge basally a deep depression. Hind femur (excluding teeth) 2-3 times as long as broad 

 (Text-fig. 99), basal tooth very strong, followed by 8-10 small teeth; externally coarsely densely 

 punctured. Hind tibia laterally fairly densely punctured, externo-ventral carina ending hardly 

 a breadth of tibia before apex, latter weakly oblique, outer spur distinct; basitarsus dorsally 

 slightly longer than breadth of tibia. Hind claws not pectinate. Fore wing: apical processus 

 of stigmal vein fully as long as and slightly stouter than uncus. 



Gaster about 3 times as long as broad and distinctly longer than head plus thorax combined. 

 First tergite about 0-7 the maximum breadth of gaster, 1-5 times as long as broad, dorsally 

 with two diverging broad furrows which are substrigose on bottom; median crest not punctured; 

 laterad of furrows puncturation becoming sparse and coarse laterally, dense and fine posteriorly. 

 Fourth tergite slightly transversely depressed, densely punctured and with dense short 

 pubescence, hairs directed obliquely backwards; dorsally with fine median elevated line; hind 

 margin medially subangularly produced. Fifth tergite inflated, dorsally only slightly more than 

 half as long as the first, convex, except for shallow median depression, very densely regularly 

 punctured and hairy. Ovipositor reaching base of gaster. 



$. 9 mm. Very similar to $ but metallic colours still duller; yellow streaks missing on 

 metapleurum and ventrally on hind coxa, but present dorsally on hind tibia. 



Gaster nearly 2-7 times as long as broad, first tergite barely more than half as broad as the 

 long spindle-shaped rest of gaster. Sides of first tergite subparallel, hind margin broadly 

 emarginate, basal fovea very small; tergite 1-3 times as long as broad, densely punctured as 

 well as following segments on which the segmentation of carapace is suggested by zones of 

 crowded finer puncturation at apex of each segment. Second segment well separated, transverse 

 but nearly as long as the third. Sixth tergite in posterior view with corners slightly produced 

 downwards as slender teeth. Epipygium weakly convex, not transversely depressed. Sternites 

 broad, not delimited by a keel on sides, third to fifth decreasingly transverse, convex; the sixth 

 subquadrate, with sides converging slightly caudad, concave along median line; last sternite 

 still more concave than the preceding (its apex missing). 



Biology. Host unknown. This Leucospis mimics certain wasps with black 

 bodies and wings whitish at apex, in a similar way as L. leucotelus Walker and L. 

 propinqua Schletterer. 



Distribution. Paraguay, Argentina. 



Holotype $, Argentina: Prov. Salta, Oran, Abra Grande, 18.1V.-5.V.1969 

 (C. Porter) (MCZ, Cambridge). 

 Paratypes. Paraguay: San Bernardino, 3.iii.i9o6, 1 $ (Babarczy) (TM, 



