228 ARKIV FÖR ZOOLOGI. BAND 1. 



castanea Weise (Wiegm.Arch. 1901, p. 146) of whieh only 

 a three lines diagnosis is given, I ain unable to say; that in- 

 sect is also described as having a length of 9 mili. 



Nerissus viridipennis sp. n. 



Plate 10, tig. 3. 



Below blackish, the basal joints of the antenns fulvous, 

 above dark green, closely pubescent, thorax closely punctu- 

 red, elytra semiconflaently punctate. 



Length 6 — 7 mill. 



Head very finely punctured, clothed with white pube- 

 scence, labrum fulvous, antennas long and slender, black, the 

 basal four or hve joints niore or less fulvous below, fourth 

 and following joints very elongate and slender; thorax one 

 half broader than long, the lateral margins rounded and 

 evenly serrate, the surface closely punctured at the sides, 

 subremotely so at the disc, clothed with white pubescence, 

 elytra very closely punctured, similar to that of the sides 

 of the thorax, the punctures confluent at the base, finer near 

 the apex, pubescent like the other parts, the hairs not arran- 

 ged in rows; below and the legs black, pubescent. 



Cameroons (Conradt, Prof. Sjöstedt). 



I must separate this species from N. affinis Lefév. with 

 which it agrees in most respects, but differs in not being 

 black but green abcve, the antenns also are not entirely 

 black but have fulvous basal joints, these are also much 

 more elongate than in Lefévres species of which I posses 

 specimens from Sierra Leone, the labrum in the present in- 

 sect is likewise fulvous. It is however possible that the lat- 

 ter is but a local form of the other. 



Rhembastus Sjöstedti sp. n. 



PJate 10, lig. 4. 



Subovately rounded, below piceous, above obscure eeneous, 

 antennas and legs fulvous, head remotely, thorax closely punc- 

 tured, elytra deeply punctate-striate, the interstices strongly 

 longitudinally costate. 



Length 3 mill. 



