64 Transactions of the South African Philosophical Society. 



subinterruptus ; elytra postice abruptius declivia, semper unicoloria ; 

 ? segmento anali non tuberculato. 



42. (43) Elytra tuberculis tenuioribus conicis subacutis, interstitio seeundo a basi 



ultra medium tenuiter carinato, callo basali in interstitio tertio valde 

 elevato ; femora setis densioribus et longioribus obsita. 



18. B. hexina, sp. nov. 



43. (42) Elytra tuberculis majoribus crassis obtusissimis, interstitio seeundo non 



carinato sed perspicue paene ad basin ipsum tuberculato, callo basali 

 in interstitio tertio humili ; femora setis evidenter brevioribus et 

 paucioribus obsita 19. B. verrucosa, sp. nov. 



44. (37) Elytra carina basali humiliore in interstitio quinto prsedita, humeris igitur 



angustioribus et obliquis ; interstitium sextum tuberculis plus minus 

 depressis et confluentibus, aut saepe omnino obsoletis. 



45. (48) Elytra ovata, postice rotundato-retusa, vittis velutino-brunneis numquam 



ornata ; tarsi graciliores. 



46. (47) Rostrum bisulcatum ; frons carinis duabus obliquis instructa ; ? segmento 



anali non tuberculato 22. B. aurivillii, sp. nov. 



47. (46) Eostrum non sulcatum ; frons non carinata ; ? segmento anali tuberculo 



uno instructo 23. B. tetragona, Thh. 



48. (45) Elytra longiora, sub-oblonga, postice abrupte retusa, vitta longitudinali 



velutino-brunnea una suturali, aut duabus juxta-suturalibus, ornata ; 

 tarsi validiores. — Frons non carinata ; ? segmento anali non tuber- 

 culato. 



49. (50) Elytra vitta communi angusta suturali velutino-brunnea ornata ; inter- 



stitium quartum tuberculo magno conspicuo et exterius deflexo in 

 summa declivitate instructum ; femora setis brevissimis depressis 

 obsita 24. J?, amplexicollis, Wied. 



50. (49) Elytra vittis duabus juxta-suturalibus ornata, quae interdum in unam 



vittam latam partim coeunt, sed semper in ipso basi separatee sunt ; 

 interstitium quartum tuberculo in summa declivitate multo minus con- 

 spicuo nee exterius deflexo ; femora setis longioribus suberectis obsita. 



25. B. retusa, Thb. 



51. (20) Elytra tota regulariter punctato-sulcata, interstitiis omnibus fere aequaliter 



elevatis et sine tuberculis, prgeter seriem transversam tuberculorum sex 

 in summa declivitate dispositam 26. B. cuneata, sp. nov. 



52. ( 1 ) Tibias posticee angulo apicali superiore dente recurvo armatee. — Coxae 



medies contiguse; tuberculum mesosternale omnino deficiens. 



27. B. deformis, Boh. 



1. Byrsops apicalis, Boh. 

 B. apicalis, Boh., Schonh. Gen. Cure, vi., 2, p. 395 (1842). 



Long. 4-6| ; lat. 2-3J- mm. 



Colour of elytra extremely variable, the principal types being : 

 (1) general colour dark above and contrasting sharply with the pale 

 grey of the apex and sides — this may be again subdivided into (a) 

 upper side more or less uniformly dark, {b) upper side with two 

 common transverse grey patches, one broader and ante-median, the 

 other narrower and post-median; (2) colour above not contrasting 

 with the apex — (a) more or less unicolorous grey, {b) with three 

 sutural brown patches, basal, median, and post-median. These 



