724 MR. E. A. ELLIOTT ON THE 



7. XANTHOCEPHALUS Cam. 



Stephmius xanthocephalus Cameron (10), p. 358, $ . 



5 . Frons strongly arcuate striate ; vertex irregularly arcuate 

 rugose, occiput finely and closely trans-striate ; posterior margin 

 of head simple. Pronotum densely and rather strongly ti-ans- 

 striate ; mesonotum shining, irregularly striate and punctate, 

 basal half centrally smooth. Scutellum smooth, apically sjjarsely 

 punctate. Pleura; smooth, white pubescent. Median segment 

 Avith large, diffuse punctures, apically irregularly trans-striate. 

 Petiole finel}'^ and closely striate, apically more strongly, longer 

 than rest of abdomen. Terebra half as long again as body, 

 sheaths entirely black. Hind legs with coxae densely striate, 

 femora with two large teeth, one medium and two very small. 



Black; head pale yellow, with broad black band from occiput 

 to posterior tubercles ; scape testaceous ; antennas black ; third 

 segment partly, ventral surface and aj)ical segment entirely 

 rufous ; apices of femora, anterior tibiae and tarsi, apex of hind 

 tibias, and hind metatarsus rufo-testaceous. Wings hyaline, 

 posterior discoidal cell infumate, stigma and nervures black. 



Length 28 mm. ; terebra 43 mm. 



Habitat : Dima, West Africa. A, Roller. Type in Congo 

 Museum, Tervouren. 



The pale yellow, black-banded head is very distinctive. 



8. suLciPRONS Schlett. 



Stephanus sulcifrons Schlett., p. 110, $ . 1 Megischus insidiaior 

 Smith (3), p. 7 6 . 



$ . Frons coarsely and obliquely to irregularly rugose, vertex 

 transrugose, the rugosity gradually passing into puncturatioii on 

 occiput, and all sculpture disappearing at back of head ; a very 

 distinct longitudinal sulcus aci-oss vertex and part of occiput ; 

 posterior margin of head strongly bordered ; cheeks rather shorter 

 than scape. Second flagellar joint twice as long as first, third 

 shorter than first and second together. Neck coarsely and 

 obliquely rugose ; semiannular i-ather closely and parti}'' con- 

 fluently punctate, its posterior margin polished smooth. Meso- 

 notum diffusely and coarsely punctate. Scutellum smooth, with 

 a few conspicuous marginal punctures. Mesopleurae feebly rugose 

 and shining in the upper impressed part, punctate below ; meta- 

 pleuraa very coarsely and densely punctate, separated from the 

 coarsely cribrate-punctate median segment by a deep and smooth 

 sulcus. Petiole transrugose, apically smoother, shorter than rest 

 of abdomen, which is basally shining, otherwise dull. Terebra 

 much longer than body, sheaths entirely black. Hind legs with 

 coxae coarsely transrugose; femora entirely smooth, bidentate, 

 the tibiae longer than femora, compressed to beyond middle. 



Black ; head, two basal antennal joints, anterior legs and hind 

 tarsi red or ferruginous. Wings slightly infuscate, centrally 

 darker. 



Length 23 mm. ; terebra 30 mm. 



