42 G. E. J. NIXON 



- Tergite i obviously narrowed behind . . . . . . . .117 



112 Postero-lateral area of the propodeum bounded laterally by a fine keel that runs 



almost parallel with the true lateral margin; these two keels enclose a narrow, 

 longitudinal area (Text-fig. 61). 



Antenna short ; mesoscutum densely punctate and posteriorly with two large, 

 dull zones of denser sculpture ; mesopleurum with deep, rugose-striate stern- 

 aulus ; tergite 1 large, subquadrate (Text-fig. 59). Cosmopolitan 



carpatus Say (p. 75) 



- Postero-lateral area of the propodeum without such a keel . .... 113 



113 Metacarp only a little longer than its distance from the apex of the radial cell ; 



propodeum very smooth-looking and without areolation ; at most a weakly 

 indicated areola present ; punctation of the mesoscutum very weak. 

 Ovipositor sheath a little shorter than the hind tibia. Australia 



ippeus sp. n. (p. 96) 



- Metacarp much longer than its distance from the apex of the radial cell ; propodeum 



with costula present even if weak ; if not, then surface with coarse rugosity or 

 strong, irregular rugae everywhere ; mesoscutum with sharp punctation ; this 

 punctation sometimes coarse and strong . . . . . . .114 



114 Temples very sharply thimble-punctate. 



Gaster with dull, satin-like sheen ; ovipositor sheath wide, slightly shorter than 

 the hind tibia ; tergite 1 short, subquadrate. India. Java aristaeus sp. n. (p. 95) 



- Temples shining and with at most an obsolescent punctation . . .115 



115 Gaster beyond tergite 1 highly polished ; tergites (2 + 3)-6 with hairs reduced 



virtually to a single row ; a weakly rugose-costate groove extends downwards 



from the dorsal furrow of the mesopleurum into the mesopleural depression . 116 



- Gaster lacking this polished appearance, having a satin-like sheen ; tergites 



(2 + 3)-6 with hairs scattered more or less all over their surface ; no such groove 

 present on mesopleurum. 



Horizontal part of tergite 1 transverse ; median field of tergite (2 -f 3) from 

 four to five times as wide as long. Africa. Philippines cyprioides sp. n. (p. 48) 



116 Punctures on anterior part of mesopleurum large, subconfluent ; 1st abscissa of the 



discoideus slightly longer than the 2nd; antenna longer, segments 16-17 being 

 slightly longer than wide ; stigma wider ; metacarp slightly shorter. Australia 



persephone sp. n. (p. 65) 



- Punctures on anterior part of mesopleurum smaller, sharper and discrete ; 1st 



abscissa of the discoideus very slightly shorter than the 2nd ; antenna slightly 

 shorter, segments 16-17 being almost transverse ; stigma narrower ; metacarp 

 slightly longer (Text-fig. 65). Solomon Is. Fiji Is. . pertiades sp. n. (p. 64) 



117 Propodeum with complete areolation or, if the costula is hardly indicated, then the 



ovipositor sheath is fully as long as the hind tibia . . . . . .118 



- Propodeum without complete areolation, there being virtually no trace of a costula 



or, if one is feebly indicated, then the sheath of the ovipositor is distinctly shorter 



than the hind tibia ........... 120 



118 Mesoscutum dull, densely, evenly punctate ; disc of scutellum with large, shallow, 



indistinct punctures ; antenna longer with segments 16-17 obviously longer than 

 wide ; spines on the outer side of the hind tibia sparse and not noticeably reddish. 

 Philippines ......... assis sp. n. (p. 96) 



- Mesoscutum more shiny, its punctation less dense ; disc of scutellum virtually 



polished and impunctate ; antenna short, thick, with segments 16-17 n °t longer 

 than wide ; spines along upper part of outer side of hind tibia strong, reddish, 

 very dense. 



Stigma unusually broad (Text-fig. 66) . . . . . . .119 



119 Middle lobe of the mesoscutum very strongly shining, its punctation along the 



