REVISION OF LEUCOSPIDAE 77 



first tergite long, puncturation coarse, dense. Rest of gaster nearly twice as long as broad, 

 second and third tergites well separated, with very coarse lengthened punctures, shortly hairy; 

 following tergites much more finely densely punctured. Epipygium slightly depressed across 

 middle. Fourth and fifth sternite (fourth and third from apex) convex, distinctly transverse, 

 moderately densely but coarsely punctured. Last sternite about as long as broad, at apex 

 broadly rounded to subtruncate. Dorsally apex of gaster distinctly more densely punctured 

 than in L. colombiana; punctures deep, crowded, their bottoms bright green. 



Biology. Unknown. 



Distribution. South Brazil, Argentina, Paraguay. 



Holotype $, Brazil: Santa Catarina, Nova Teutonia, 6.LU.1939 (F. Planmann) 

 (BMNH). 



Paratypes. Brazil: Santa Catarina, Nova Teutonia, i. 1959, 1 $ (F. Plaumann) 

 (Townes). Argentina: Prov. Santa Fe, Rosario district, xi. and xii. 1916, 1917, 

 2$, 2 £ (J. Hubrich) (ZS, Munich; BMNH). Paraguay: Villarica, 7. iv., 1 <? 

 (F. Schade) (MCZ, Cambridge). 



Leucospis opalescens Weld 

 (Text-figs 75, 81-86) 



Leucospis opalescens Weld, 1922 : 15-17, $. Holotype $, Brazil: Chapada (USNM) [examined]. 



The two females mentioned below agree relatively well with the holotype, 

 although being of 9 and 13 mm in length respectively and showing slight deviation 

 in colour. Both have on pronotum a transverse yellow spot anteriorly, the bigger 

 one the posterior band not interrupted in the middle. In all three the pale yellow 

 band on scutellum widens more or less laterad. Otherwise morphologically they 

 are extremely close to L. signifera described fully above, which may prove, eventually, 

 a southern subspecies of L. opalescens. Another morphologically very similar 

 species is L. aliena sp. n. which has, however, relatively shorter legs and shows a 

 rather constant and different yellow pattern. More material and information is 

 needed to check my conclusions, although they seem to be correct at the present 

 time. 



The male is still unknown. 



Biology. Host unknown. 

 Distribution. Brazil. 



Material examined. 



Type data given in synonymy. 



Brazil: Para, 1$ (Agassiz & Bourget) (MCZ, Cambridge); Urucum, Corumba, 

 xii. 1919, 1$ (Cornell Univ. Exped.) (CU, Ithaca). 



