REVISION OF LEUCOSPIDAE 87 



times as broad as long, fairly convex at median line which is partly impunctate; not depressed 

 at hind margin. Axilla small, depressed, lateral margin carinate. Dorsellum broadly 

 crescentic, less than 3 times as broad as long, margin strongly carinate; dorsally bare and 

 alveolate, with indication of a pair of diverging keels; sides of metanotum coarsely crenulate. 

 Propodeum medially hardly twice as long as dorsellum and slightly less than half as long as 

 scutellum, rather hairy; median area irregularly rugose, uneven, median carina moderately 

 raised behind middle. Femoral depression of mesopleurum deep; interspaces of punctures on 

 upper episternum fairly shiny though obliquely striate, on epimerum and metapleurum nearly 

 smooth. Hind coxa 1-24-1-28 times as long (measured at lateral edge) as broad (high); dorsal 

 edge punctured and hairy, anteriorly blunt but posteriorly thin and sharp and forming a lamellate 

 rounded lobe ; depression in upper part with narrow smooth strip, otherwise punctured and 

 moderately hairy, interspaces in middle about as broad as punctures but broader near lateral 

 edge; hairs mainly directed to median line but just above lateral edge turned towards the edge; 

 coxa below lateral edge with impunctate area. Hind femur (Text-fig. 96) moderately coarsely 

 punctured, microreticulation on interspaces very shallow; basal tooth very broad, followed by 

 about 9 small teeth. Apex of hind tibia ventrally slightly broadly produced, outer spur about 

 as long as half breadth of tibia. Fore wing : apical processus of stigmal vein rounded, very short. 



Gaster about as long as head plus thorax and fully twice as long as broad. First tergite about 

 o-8 the width of the fifth (broadest), about as long as broad; impunctate at base and with 

 percurrent smooth raised median line; densely punctured and hairy posteriorly, punctures 

 becoming sparser and coarser on disc. Fourth tergite longest medially due to wide-angular 

 produced hind margin, densely punctured, punctures medially in about 8 transverse rows; 

 hairs thin as elsewhere. Fifth tergite regularly punctured, interspaces not reaching half 

 breadth of punctures; dorsum of tergite anteriorly strongly swollen, then rather steeply sloping 

 caudad, medially broadly grooved; sides regularly convex. Ovipositor sheaths extending over 

 three-quarters of fifth tergite. 



$. Unknown. 



Biology. Unknown. 



Distribution. Guyana, Paraguay. 



Holotype $, Paraguay: Borja, vi. 1935 (F. Schade) (NM, Vienna). 

 Paratypes. Guyana: Blairmont, xi. 1923, 1 $ (F. X. Williams) (BBM, 

 Honolulu). Paraguay: Asuncion, 5.x. 1904, 1$ (Vezenyi) (TM, Budapest). 



L. nigripyga sp. n. is very close and similar to L. versicolor sp. n. from which it 

 differs in female mainly by the strongly inflated fifth tergite with ovipositor in 

 oblique position (as for example in the Mediterranean L. biguetina Jurine). It 

 may prove more difficult to separate the males which are not yet known. 



Leucospis versicolor sp. n. 



(Text-fig. 97) 



?■ 8-5-9-3 mm. Black with metallic tinge in places conspicuous: vertex posteriorly dark 

 cupreous, anteriorly purplish, face bright green-brassy to cupreous or slightly bluish ; thoracic 

 dorsum and sides mainly dark purple with bottoms of punctures vivid violaceous; axillae, 

 propodeum and upper mesepisternum and thorax ventrally bright green to brassy, as well as 

 coxae and first tergite; densely punctured band on fourth tergite green, rest of gaster purplish. 

 Pale yellow: scape, posterior cross-line and lateral border of pronotum, hind margin of 

 mesoscutum, apex of hind coxa externally, hind femur ventro-basally and at apex, all knees, 

 line anteriorly on fore tibia and hind tibia dorsally; flagellum reddish, basally pale testaceous; 



