HYMENOPTEROUS FAMILY STEPHANID^. 793 



except the middle and apical femoral teeth, which are white. 

 Wings iridescent hyaline, nervures pale brown, stigma centrally 

 translucent. 



Length 16 mm. ; abdomen 9| mm. ; petiole 4| mm, ; terebi-a 

 18 mm. 



Habitat: Paleboehan, Ratoe. M. E. Walsh (ex Frisby); 22nd 

 February, 1916. Type in coll. Claude Morley. 



The colour of the femoral teeth is distinctive. In F. rugiceps 

 Elliott the basal tooth is white, the apical black ; in the present 

 species this is reversed. 



16. ARCUATUS Kiefi". 



Foeiiatoptis ctrcuaius Kieffer (4), p. 118, $ . 



5 . Head subglobose ; f rons irregularly rugose, almost reticu- 

 late ; vertex transcarinate ; occiput irregularly rugose, with 

 longitudinal sulcus ; temples centrally prominent ; posterior 

 margin of head bordered. Second flagellar joint about one and a 

 half times as long as first ; third as long as first and second 

 together. Neck very short, thorax cribrate punctate above 

 throughout ; median lobe of scutellum centrally slightly sha- 

 greened. Mesopleurae difl:\isely cribrate punctate. Petiole 

 densely transaciculate, rather shorter than rest of abdomen. 

 Terebra as long as body, sheaths brown, apically black. Hind 

 legs with coxae trans-striate; femora tridentate; tibiae compressed 

 rather beyond middle. 



Dull black ; head entirely red, or occiput black-brown ; five 

 basal antennal joints red ; anterior femora brown ; all tibipe and 

 tai'si pale brown or brownish white. Wings hyaline, stigma and 

 nervures brown. The radius curvate, not angulate, emitted from 

 apical third of stigma. 



Length 10 mm. 



Habitat: Oameroons. Type in National Entom. Museum, 

 Berlin. (Conradt.) 



17. NATALicus Westw. 



Stephanus natalicus Westw. (5), p. 127, pi. xxiv. fig. 8; Schlett., 

 p. 102, 5 (S . Neostejjhanus natalicus Enderl. (2), p. 474. 

 Foeriatopus natalicus Morley (1), p. 110, § c? 



§ S . Frons finely transrugose, vertex transcarinate ; occiput 

 alutaceous. Posterior margin of head simple. Second flagellar 

 joint one and a half times as long as first ; third nearly as long as 

 first and second together. Prothorax trans-striate. Mesonotum 

 diffusely punctate; scutellum smooth. Meso- and meta-pleui-se 

 nearly smooth, former pubescent, latter confluent with median 

 segment, which is superficially and difl[usely punctate. Petiole 

 shorter than i^est of abdomen, transaciculate, remainder smooth 

 and feebly shining. Terebra shorter than body, fulvous, apically 

 black. Hind legs with coxEe apically transaciculate; femora 

 tridentate ; tibiae constricted to beyond middle. Tarsi five-jointed 

 in (S , three-jointed in female. 



