18 Z. BOUCEK 



- Palpi conspicuous (Text-figs i, n, 119), maxillary ones 4-segmented, labial ones 



3 -segmented ; hind tibia at apex more or less produced, often into distinct spine, 

 outer spur usually reduced, always shorter than inner spur; ovipositor of varying 

 length, usually distinctly turned upwards and forwards, with epipygium following 

 the turning and never forming an apical conical cap ..... 2 



2 Lower margin of clypeus slightly arcuate, produced (Text-figs 15, 251); mandibles 



densely pubescent down to apex which is thin, more or less rounded, with small 

 notch; in both sexes gaster strongly clavate, narrow basally, in 9 fourth tergite 

 produced backwards, unusually angulate (Text-figs 249, 256, 257), sixth tergite 

 fused with epipygium; in $ dorsum of second tergite subquadrate to distinctly 

 elongate (Text-fig 271) ; Africa and Madagascar . MICRAPION Kriechbaumer (p. 211) 



- Lower margin of clypeus more or less bilobed, between lobes often with a median 



tooth (Text-figs 1, 7); mandibles stronger, bare at apex, lower tooth always 

 rather strong; gaster much less clavate than in alternate; in 9- fourth tergite 

 posteriorly straight or nearly so, sixth tergite distinctly separated from epipygium 

 (Text-fig. 4) ; in ^ dorsum of second tergite always short, transverse ... 3 



3 Head in dorsal view longer than breadth of frontovertex, lateral ocellus less than its 



diameter from eye (Text-fig. 244) ; gaster in § (Text-fig. 243) in dorsal view formed 

 by narrower first and fourth tergites and a large oval unsegmented carapace; 

 short and nearly straight ovipositor hidden under apex of carapace; scutellum 

 with cross-carina anteriorly; dorsellum nearly as long as broad, horizontal, with 

 translucent bidentate lamina; £ not known; Africa . NELEUCOSPIS gen. n. (p. 210) 

 Head more transverse in dorsal view, frontovertex broader, ocellus more removed 

 from eye; gaster in ^ with ovipositor (although sometimes short) always visible 

 from above, as well as epipygium; scutellum without cross-carina; dorsellum 

 usually transverse, otherwise; cosmopolitan . . LEUCOSPIS Fabricius (p. 28) 



POLISTOMORPHA Westwood 



Polistomorpha Westwood, 1839 : 265 [as subgenus of Leucospis Fabricius]. Type-species: 

 Leucospis (Polistomorpha) surinamensis Westwood, by monotypy. 



Forster (1856 : 21) and Walker (i860 : 22) treated the original subgenus 

 Polistomorpha as a genus and so did all subsequent authors. Not many of them, 

 however, had a good knowledge of it and even Schletterer (1890) knew only one 

 species and Weld (1922) probably did not examine any species, for Leucospis 

 bulbiventris Cresson, which she provisionally attributed to Polistomorpha, has 

 nothing to do with this genus. On the other hand, Westwood (1874) knew three 

 species well and Ducke (1906) knew four species. The latter author described 

 some very useful characters, although he did not use them in his key to the species. 

 His key was used later on by Mani (1937 : 289-290), who added two species from 

 India; these proved, however, to be Leucospis. 



Polistomorpha is close to Leucospis and apart from the rudimentary palpi and 

 the female gaster, with ovipositor confined to its ventral side, all the other 

 distinguishing characters (included in the following paragraph) are more of 

 quantitative than qualitative nature. 



Colours of body non-metallic ochreous-yellow with red, brown or black. Pilosity on face reduced 

 and mostly absent on ventral parts of eyes. Clypeus much higher than broad (Text-figs 22, 

 23), its sides weakly diverging downwards, lower margin produced and mostly bilobed, medially 

 subtruncate or emarginate, without median tooth. Genae long and in facial view forming a 



