2i 4 Z. BOUCEK 



culation, particularly conspicuous on fiat impunctate streak extending in distal 

 two-thirds (Text-fig. 253), the tergite with basal yellow spot; narrow apical band 

 of fifth tergite crossing sheaths in their basal quarter; hind femur rather broad, 

 very densely punctured ..... . punctulatum sp. n. (p. 221) 



10 Pronotum with conspicuous oblique depressions dorsally (Text-fig. 265); eyes 



glabrous, without distinct pubescence ; stigmal vein of fore wing with long uncus 



but without distinct terminal processus (Text-fig. 264) . richardsi sp. n. (p. 223) 



- Pronotum without distinct oblique depressions; eyes with conspicuous pubescence; 



terminal processus of stigmal vein usually developed . . . . . 11 



11 Gaster in § with fifth tergite longer than high or broad (Text-figs 270, 272), oviposi- 



tor very short, vertical; hind femur relatively broad . . sp. indet. A (p. 228) 



- Gaster in 9 with fifth tergite about as long as high (Text-figs 259, 261), ovipositor 



when in furrow slightly oblique, not quite vertical ; hind femur often more slender 1 2 



12 Hind femur relatively broad (Text-figs 259, 260) ; fifth tergite in $ with subapical 



yellow band usually broad, crossing sheaths approximately in their middle; upper 

 basal half of depression of hind coxa extensively punctured 



bilineatum Kriechbaumer (p. 225) 



- Hind femur more slender than in alternate (Text-fig. 263); partly otherwise . . 13 



13 Malar space about half as long as eye, 0-45-0-55 (Text-fig. 264) ; yellow band of fifth 



tergite in $ narrow, removed from apical margin by more than its breadth, 

 crossing sheaths above middle ..... nasutum sp. n. (p. 224) 



- Malar space distinctly less than half length of eye (Text-fig. 261) ; yellow apical band 



in $ very near to margin, broad, crossing sheaths in median half 



congoense Steffan (p. 224) 



The species are arranged below according to the decreasing length of the ovipositor, 

 which seems to correlate with the increasing length of the median length of the 

 fourth tergite in the females and, apparently, to some extent with the increasing 

 truncation of the gaster in the males. 



Micrapion dolichum sp. n. 



(Text-figs 249, 250) 



$. 7-8-10-0 mm. Piceous black; more or less reddish are: antennae beneath, sides of 

 pronotum, apex of metapleurum, partly legs (except coxae basally and femora medially) and 

 sometimes gaster beneath basally; whitish yellow are: scapus beneath (partly), anterior and 

 posterior arcuate diverging lines on pronotum, usually narrow line on scutellum, narrow bands 

 on fourth and at hind margin of fifth tergite, all tibiae dorsally, hind femur ventro-basally and 

 dorso-apically, mid and hind tarsi at base. Wings moderately infumate with faintly darker 

 apex and darker brown between stigmal and postmarginal veins. 



Head about as broad as pronotum in posterior third, dorsally 2-00-2-15 times as broad as 

 long; temples extremely short but distinct; frontal protuberances low, highest at scrobal 

 margin, slowly descending towards eyes; latter distinctly excised. Vertex moderately convex, 

 only small smooth area outside of lateral ocellus depressed, but space between it and frontal 

 protuberance slightly concave; occipital carina indistinct, indicated by faint, microscopically 

 striate cross-ridge between lateral ocelli, a similar ridge just behind median ocellus; ocellar 

 triangle about 2-9 : 1 ; POL about 3-5 times OOL; median ocellus separated by smooth groove 

 from scrobal carina, groove one-third of diameter of ocellus broad. Head in facial view very 

 slightly higher than broad. Supraclypeal area moderately convex, interantennal area without 

 distinct keel. Relative measurements: breadth of head 54, frontovertex 31, scrobes 20 (as 

 broad as high), lower face 24-5, its height 25, eye 34 : 22, malar space 10, mouth 16, scape 12; 

 flagellum plus pedicellus 1-36 times as long as width of head, slightly clavate. First flagellar 



