1897.] PHYTOPHAGOUS COLEOPTEBA OP AFRICA. 555 



very finely and closely punctured, the interstices somewhat uneven 

 or wrinkled, opaque ; scutellum broad, triangular ; elytra slightly 

 narrowed below the middle, more strongly punctured than the 

 thorax, the punctures placed in very closely approached, semi- 

 regular I'ows, the apex of each elytron subtruncate ; legs flavous, 

 the posterior femora black, the metatarsus of the hind legs as 

 long as the following joints together. 



Hab. Mashonaland {G. Marsliall). British Mus. coll. and my 

 own. 



Of only half the size of the preceding species, with entirely 

 flavous tibiae and tai:si and more opaque upper surface ; there 

 are three specimens before me, of which one is apparently 

 immature, as it is of a brownish colour and with entirely flavous 

 antennae. The specimens being glued to cards, 1 am unable to say 

 anything about the underside or the sexes, but they will be easily 

 distinguished from the preceding insect. 



LONGITAESUS WOLLASTONI, n. Sp. 



Apterous ; obscure piceous below, above testaceous ; antennae 

 longer than the body; thorax subquadrate, impunctate ; elytra 

 very convex, widened at the middle, nearly impunctate, the disc 

 with an obscure fuscous spot. 



Length \ line. 



Head impunctate, the frontal tubercles small, but strongly 

 raised ; clypeus rather broad, impunctate ; antennae rather longer 

 than the entire body in the male, slightly shorter in the other 

 sex, pale flavous, the second joint nearly as long as the third, 

 the following more elongate ; thorax about one-half broader than 

 long, the sides quite straight, converging outwards or widened 

 towards the apex, the anterior angles oblique, forming a tooth 

 before the middle ; posterior angles likewise oblique, but to a 

 smaller extent, the surface impunctate; scutellum broader than 

 long ; elytra narrowed at the base and at the apex, very convex, 

 not perceptibly punctured ; the middle of the disc with a darker 

 but very obscure round patch, gradually shading, into the ground- 

 colour; below neai-ly black, legs pale testaceous, the first joint of 

 the posterior tarsi as long as the following three joints together. 



Hah. Madagascar, Diego-Suarez (CA. Alluaud). 



LONGITAESUS ArmCANUS, n. sp. 



Apterous ; flavous, the apex of the posterior femora black ; 

 labrum piceous ; head impunctate ; thorax finely punctured and 

 minutely granulate ; elytra nearly similarly sculptured. 



Length 1-1 1 line. 



Head entirely impunctate, without frontal tubercles, the carina 

 rather broad ; clypeus slightly thickened, its anterior edge straight, 

 the labrum nearly black; antennae nearly as long as the body, 

 flavous, the third joint one-third longer than the second and one- 

 third shorter than the fourth joint, the fifth and the terminal 

 joints very elongate ; thorax one-half broader than long, more 



