1904.] AFRICAN PIIYTOPIIAGOUS COLEOPTEEA. 247 



strongly punctate-striate anteriorly, much more finely so poste- 

 riorly, the interstices with a few fine punctures and very finely 

 wrinkled at the sides, the humeral callus not prominent, each 

 elytron with three bright flavous spots, an elongate one at the 

 sides from the shoulders to the middle, a large oval spot opposite 

 the first near the suture and below the scutellum between the 

 first and sixth row of punctures, and the third spot near the apex, 

 of slightly transverse shape ; underside and the legs black, the 

 tibise and tarsi more or less fulvous ; prosternum svibquadrate, 

 the base straight, the surface with an obsolete longitudinal ridge. 



Hah. Salisbury, Mashonaland {G. Marshall). 



Not unlike C. mirahilis Sufir., but the head green and rugose, 

 the elytra with three not four yellow spots, and the legs partly 

 black. 



Cryptocephalus flavofroxtalis, sp. n. 



Black ; the head, the anterior and lateral margins of the thorax 

 flavous, the latter impunctate ; elytra finely punctate-striate, the 

 interstices flat, black, each elytron with four flavous spots (1.2.1); 

 the legs fulvous. 



Length 4 millim. 



Allied in the markings of the thorax and elytra to C. gemmatus 

 SufTr., but deep black, not blue ; the head entirely flavous, with a 

 short central longitudinal groove at the vertex sparingly but 

 distinctly punctured ; antennse long and slender, black, the lower 

 six joints fulvous, the second to the fifth joint gradually lengthened, 

 terminal joints elongate ; thorax strongly narrowed anteriorly, 

 the sides rounded, the surface very convex, black, very shining 

 and impunctate, the anterior margin broadly, the lateral ones very 

 narrowly flavous ; scutellum broadly trigonate, black, impunctate ; 

 elji^ra with fine and regular rows of punctures, the interstices flat 

 and with a row of very minute punctures here and there, the 

 punctures near the base and the sides stronger than the posterior 

 ones, each elytron with a transverse flavous spot at the base, an 

 elongate, medially constricted one at the sides, extending to the 

 middle downwards, a round spot near the suture and a transverse 

 one at the apex ; pygidium and underside black, the upper margin 

 of the breast flavous ; legs robust, fulvous ; prosternum broad, the 

 sides raised, the base slightly emarginate. 



Hah. South Africa. 



The only specimen contained in my collection without precise 

 locality is apparently a male, and is somewhat similarly marked to 

 C mashonanus Jac, but that species has much shorter and robust 

 antennae, no flavous thoracic margins, and the elytral spots are of 

 difierent shape. 



Cryptocephalus mandibularis Sufii-. 



I am almost certain that this form is only a colour- variety of 

 G. polyhistor SufFr. (Achcenops mandihularis Jac). I have received 

 both species, taken in coitif,, horn Mr. C. Barker of Natal, and 



