African Phytophagotis Colcoptera. 249 



Rhembastus semibmtnnctis, sp. n. 



Fulvous with oeneous gloss, the antenna? and legs paler, head and 

 thorax closely punctured, the latter crowded with round, nearly 

 confluent punctures, elytra fulvous with seneous gloss, closely 

 punctate-striate, the interstices longitudinally costate, the lateral 

 margins dark ameous. 



Length 3 millim. 



Of subelongate shape, fulvous with a slight aeneous gloss, the head 

 strongly rugose at the vertex the punctures confluent, the clypeus 

 less strongly but very closely punctured, its anterior margin slightly 

 concave, eyes surrounded by a narrow sulcus, antennae of moderate 

 length, entirely pale fulvous, the second joint quite as long, if not 

 longer than the third one, the terminal five joints thickened ; thorax 

 more than twice as broad as long, the sides rather strongly rounded 

 at the middle, the angles distinct, the surface crowded with deep 

 round punctures extending to all the margins, with a faint metallic 

 greenish gloss, the lateral margins darker, scutellum impunctate, 

 elytra of a more pronounced fulvous colour with a faint metallic 

 hue, finely and regularly punctate-striate, the interstices at the sides 

 longitudinally costate, the punctures at the same place larger and 

 deeper, the lateral margins dark greenish ameous, legs fulvous, 

 the femora with a very minute tooth ; the prosternum elongate, 

 narrowed at the middle, strongly rugose ; claws deeply bifid. 



Hab. Mashonaland, Salisbury (G. Marshall). 



Of this species Mr. Marshall has sent three specimens, 

 they differ from any of their allies in the rugosely punc- 

 tured head and thorax in connection with the costate 

 and semifulvous elytra. Lefevre has described a species, 

 Syagrus rugiccps (Descript. new spec. Trans. S. Afric. Philo- 

 soph. Soc. 1890), which seems to agree with the present 

 insect in colour and sculpturing (to judge from a five-line 

 description), but his species is of double the size and of 

 different coloration. 



R. puncticollis, Har., seems another closely allied species 

 but is described as " cupreo-aeneus," with reddish-piceous 

 antennae and legs, and no mention is made of the costate 

 lateral interstices of the elytra, nor is a certain deter- 

 mination of such closely allied species possible when such 

 short and unsatisfactory descriptions are given. 



Rhembastus inermis, sp. n. 

 Pale fulvous with a slight seneous gloss, apical joints of the 



