246 MR. MARTIN JACOBY ON [Feb. 16, 



tliis species is distinguished by the entirely bluish-black head and 

 thorax, underside, and legs. I possess two exactly similar spe- 

 cimens, but have never seen any others from the Cape or other 

 parts of Africa. My specimens were obtained as long ago as 1874. 



Oryptocephalus semiregularis, sp. n. 



Fulvous, the breast and abdomen partly black, pubescent ; 

 thorax impunctate, with two black spots ; elytra irregularly 

 punctate-striate, the interstices partly punctured, each elytron 

 with 5 black spots (1.2.2). 



Length 7 millim. 



Head closely punctured, fulvous, the vertex v,dth a black sj^ot, 

 eyes broadly emarginate ; antennas slender, black, the lower live 

 joints fulvous, third and fourth joints equal, smaller than the fifth ; 

 thorax about one half broader than long, with an obsolete oblique 

 depression at each side near the base, the surface impunctate for 

 the greater part, a few minute punctures only are visible near the 

 base, the sides with a somewhat transversely-shaped black spot ; 

 scutellum rounded at the apex, blackish ; elyti'a with irregularly 

 placed punctures arranged in rows which are often doubled, the 

 interstices with smaller punctures placed here and there ; of the 

 spots, one is placed on the shoulders, the others transversely, of 

 these, the first two are situated before the middle, the outer one 

 rather lower than the other, the fourth and fifth spot below the 

 middle are in the same line, one near the lateral, the other near 

 the sutural margin ; the jDygidium, the legs, and the last abdominal 

 segment are fulvous, the rest of the underside is black, clothed 

 with shoi-t grey pubescence. 



Hah. Dar-es-Salaam, E. Afiica. 



The position and number of the elytral spots is the same as in 

 C. IQ-puiictaius SuflEi'., but the thorax has only two spots and the 

 punctuation of the elytra is quite difierent. C. d-jdagiatios Jac. 

 is of very nearly similar coloration and elytral markings, but is 

 double the size, and flavous in colour above ; the thorax has two 

 black bands, and the elytral punctuation is more regular and 

 stronger ; the prosternum is also black, not fulvous. 



Cryptocephalus sexplagiatus, sp. n. (Plate XYII. fig. 4.) 



Black, the head greenish, rugose- punctate ; thorax reddish 

 fulvous with two large black spots, spai'ingly and finely punctured ; 

 elytra finely punctate-striate, the interstices finely wrinkled at 

 the sides, an elongate spot at the sides, a large oval spot below 

 the scutellum, and the apex bright flavous. 



Length 3 millim. . 



Head greenish black, closely rugose ; antennfe black, the lower 

 foul- or five joints fulvous, the basal one black above, the terminal 

 three joints widened ; thorax distinctly narrowed anteriorly, with 

 a few very fine punctures near the base, I'eddish fulvous, the basal 

 margin very nari-owly black, the disc with a lai-ge irregular shaped 

 black spot on each side ; scutellum black ; elytra black, rather 



