940 MR. G. A. K. MARSHALL OX [DeC. 11 



Tlie nine species may be discriminated by the folio-wing 

 characters : — 



1. (2.) ; Upperside set with erect curled setfe S. crispnsYsi. 



2. (1.) : TTpperside entirely devoid of erect setae. 



3. (4.) Anteunje inserted behind middle of rostrum : elytra with a 



sharp prominence at apex of interval 3 and with the 

 striae deeply punctured; joints 2 and 3 of tarsi longer 

 than 1 J3. jjunctipennis, sp. nov. 



4. (3.) ; Antennae inserted at or beyond middle of rostrum; elytra 



with no prominence at apes of interval 3 ; joints 2 and 3 

 of tarsi not longer than 1. 



5. (8.) ' Striie on elytra deeply and closely punctured, the punctures 



being distinctly visible through the scaling ; tibiae Avith 

 a row of long setae on their inner edge. 



6. (7.) Prothorax without a central furrow ; antennae inserted near 



I apex of rostrum ; size small (mider 3 mm.). B. beiramis, sp. nov. 



7. (6.) Prothorax with a deep and continuous central fun-ow; 



antennae inserted at middle of rostrum; size larger (over 

 : 4^ mm.) ., JB. luimeroUs, sp. nov. 



8. (5.) ! Stria? impimctate or with fine or shallow punctuation, 



I which is quite innsible through the scaling; tibia?, at 

 } most, with verv short depressed setae. 



9. (10.) I Third joint of tarsi evidentlv bilobate B.fastosits H-Mtm. 



10. (9.) I Tliird joint of tarsi not bilobate. 



11. (16.) Forehead with no supraocular prominence; elytra .sub- 



I quadrate ; third joint of anterior tarsi not broader than 

 j second. * 



12. (13.) : Tibiae denticulate internally ; third interval of elytra with 



i a large rounded tubercle at the summit of the declivity ; 



size larger (-5-6 mm.) S. senegalensis, sp. nov. 



13. (12.) : Tibiae not denticulate : third interval of eh-tra without anj- 



: tubercle; size smaller (2-3 mm.). 



14. (15.) Prothorax \vith a continuous central furrow ; rostrum with 



, a basal lateral sulcus above the scrobe JB. coenosiis Gyl. 



15. (14.) Prothorax with no central furrow ; rosti'um without a basal 



lateral sulcus ■. S. promontorii. i^t.noy. 



16. (11.) Forehead with a small prominence above the eye: elytra 



elongate : third joint of anterior tarsi distinctb' broader 

 than second B.longithis (iy\. 



Phacemastls; trixotata, sp. nov. 



Long. 4|— oi, lat. I3— 21; mm. 



Colour black, ^^-ita very sparse white setif orm scaling, the elytra 

 with one apical and two basal patches of dense creamy-white 

 scales. 



Head closely punctured and with sparse white scaling beneath ; 

 eyes subcontiguous and occujjying almost the entire upper surface 

 in the 5 5 more widely separated in J . Rostrum strongly curved, 

 its sides stibparallel. the basal half compressed, coarsely strigoso- 

 punctate, squamose, and with a high smooth central carina 

 ascending between the eyes ; the apical half depressed, bare, shinj-, 

 and very finely punctured in 2 , more coarsely so in cJ . Antennce 

 ferruginous, with the club fuscous and about ec^ual to the last 

 four joints of the funicle. Prothorax slightly broader than long, 

 broadest at base, sides almost straight and gradually converging 

 to near apex, which is strongly constricted, base bisinuate, apical 

 maigiu truncate ; upper surface subdepressed, with deep close 

 and subreticulate punctuation throughout and a very short smooth 



