REVISION OF LEUCOSPIDAE 95 



punctured, broad interspaces smooth. Upper edges of fore femur and tibia rounded. Hind 

 coxa dorsally and laterally extremely densely punctured and with short hair, in depression a 

 broad impunctate streak not reaching basal one-sixth, the streak with indicated microreticula- 

 tion; depression about 2-5 times as long as broad; dorsal edge posteriorly indicating blunt 

 tooth. Hind femur (Text-fig. 112) very slender, basal tooth in middle, followed by six broadly 

 separated narrow teeth; puncturation externally irregular, some punctures very coarse. 

 Puncturation of hind tibia externally very coarse and rather sparse, apically denser and less 

 coarse; apex of tibia truncate, outer spur fairly long, inner spur acuminate. Hind basitarsus 

 dorsally about as long as apical breadth of tibia. Fore wing: stigma clavate, apical processus 

 broader than uncus and about as long. 



Gaster with subparallel sides, dorsal outline (in profile) conspicuously convex; puncturation 

 dense, coarsest on first tergite where about as coarse as on pronotum but slightly less dense. 

 First tergite slightly shorter than broad, not narrower than any of the following ones; dorsally 

 regularly convex and punctured. Tergitcs 3, 4 and 5 along hind margins increasingly broadly- 

 depressed, dorsally of relative length 10, 19 and 18 respectively (first tergite 40); third finely, 

 fourth and fifth more deeply but not very broadly grooved medially; third tergite very shortly 

 pilose, the fourth and fifth with conspicuous vivid pale golden to brassy hairy bands, with 

 stoutish hairs at base of distal depressions directed ventrad instead of caudad; similar thick 

 hairs on sixth tergite and epipygium directed caudad. Ovipositor sheaths curved, tapering 

 apically, hardly shorter than hind tibia, reaching nearly to base of fourth tergite. 



(J. 8-5 mm. Very similar to §, particularly in colour and in sculpture of head, thorax and 

 in the legs. Mesoscutum slightly shiny only on the disc, sublaterally interspaces dull, with 

 irregular transversely rugose microsculpture. Gaster slightly longer than thorax, broad, about 

 1-5 times as long as broad, with all tergitcs dorsally exposed, though third to sixth with margins 

 fused (but indicated). First to third tergite with dark pilosity, first and second very coarsely 

 irregularly punctured to alveolate; third basally also with relatively coarse punctures; following 

 tergites finely densely punctured but each, decreasingly, basally more coarsely and less densely 

 so; fourth to sixth tergite plus epipygium with dense adpressed golden pubescence forming 

 transverse bands, as hairs on each tergite anteriorly are directed sideways, then in a band 

 directed caudad and at hind margin towards median line which is marked particularly on fifth 

 and sixth tergite as a keel, weaker on epipygium. First tergite nearly twice as broad as long, 

 0-85 as broad as fourth (broadest) tergite, medially strongly convex, high, basal fovea extremely 

 short but distinct, hind margin straight. Apex of gaster blunt, but epipygium rather narrow, 

 transversely depressed in middle, with raised subparallel edges inside of spiracles; apex sub- 

 angularly produced. Sides of sixth tergite posteriorly without distinct auricles. Last sternite 

 densely punctured, nearly flat, only shallowly grooved medially, about as long as broad, its 

 sides converging, apex emarginate. Penultimate sternite broadly depressed in middle, about 

 twice as broad as long. Preceding segments flat, sparsely coarsely punctured, strongly 

 transverse. 



Biology. Host unknown. 



Distribution. Brazil, Paraguay. 



Holotype $, Paraguay: Villarica (F. Schade) (MCZ, Cambridge). 



Paratypes. Brazil, State Sao Paulo: Jundiai, 1897 and 1899, 2 $ (Schrotlky) 

 (MNHU, Berlin and BMNH). 



L. genalis sp. n. has the apical golden pubescence as in L. mexicana Walker 

 and the two species are similar in colour. Apart from the differently shaped 

 dorsellum, L. genalis is plumper, has more slender legs and in the male is nearer 

 to L. ignota Walker, to the following species (L. addenda) and perhaps to some 

 other closely related species known mostly only in the females. Namely, the 

 second tergite in the male is dorsally not only visible, but very heavily sculptured, 



