172 



M. W. R. de V. GRAHAM 



(1) Female with mesoscutum not very shiny, the reticulation of its mid lobe 

 distinctly raised above the general surface, its areoles with thick walls and 

 tending to be subcircular ; inner angle of each axilla with slightly raised 

 reticulation ; petiole of gaster as long as or slightly longer than the pro- 

 podeum, 2 to 2-7 times as long as broad. Male with sculpture of mid lobe 

 of mesoscutum and axillae much as in female ; antennal scape hardly or 

 only just reaching lower edge of median ocellus, its length hardly equal to 

 transverse diameter of eye .... megapterus Walker (p. 173) 



Female with mesoscutum shiny, the reticulation of its mid lobe only very 

 slightly raised above the general surface, its areoles with thinner walls and 

 tending to be rhomboidal or irregular in shape ; axillae with engraved 

 reticulation ; petiole of gaster slightly shorter than the propodeum, 1 -4 to 1 -8 

 times as long as broad. Male with sculpture of mid lobe of mesoscutum and 

 axillae much as in female ; antennal scape reaching middle of median 

 ocellus, its length virtually or quite equal to transverse diameter of eye 



splendens sp. n. (p. 174) 



Figs. 134-139. Merismus spp. 134, splendens sp. n., $, head ; 135, rufipes Walker, $, 

 head ; 136, nitidus (Walker), $, head ; 137, megapterus Walker, $, gastral petiole and 

 gaster ; 138, splendens sp.n., $, petiole and gaster ; 139, lasthenes (Walker), $, petiole 

 and gaster. 



