and Sjjecies of Gallerucinse. Ill 



granulose-rugose, densely clothed (as well as the scutellum) 

 with sericeous hairs. 



Genus Mesodonta, Baly. 



Dr. Chapuis errs in saying that the apex of the mesotibia 

 is unarmed in the female ; in the specimens from which I 

 drew up the diagnosis of the genus (two males and one female) 

 the spine is equally distinct in both sexes. 



Mesodonta limbata, Baly. 



Mesodonta limbata, Baly, Trans. Ent. Soc. 1864, p. 230; Ent. Month. 

 Mag. ii. p. 99. 



Mas abdominis apice profunde concavo-foveolato. 



Fcem. abdominis apice integro, disco longitudinaliter srdcato. 



Mesodonta marginata. 



M. elongato-ovalis, convexa, nigro-picea aut nigra, griseo-sericea, 

 facie thoraceque minus dense sericeis, sordide flavis ; hoc transverso, 

 inequaliter excavato, utrinque distinctc foveolato, nigro bima- 

 culato ; scutello sordide rlavo ; elytris anguste oblongis, viridi- 

 olivaceis, sat dense sericeis, crebre punctatis. 



Mas antennarum articulis tertio ad sejitimum leviter incrassatis, 

 latitudine perparum vix increscentibus, octavo magis incrassato, 

 clavato, apice oblique truncate-, tribus sequentibus brevibus, ab- 

 rupte angustatis, latitudine sequalibus ; abdominis apico pro- 

 funde concavo-excavato. 



Fcem. antennarum articulo octavo non clavato, abdominis apice in- 

 tegro. 



Long. 5 lin. 



Hah. West coast of Africa, Camaroons. 



Head exserted, closely punctured ; vertex convex ; front 

 impressed with a longitudinal groove; encarpge pyriform, 

 contiguous ; eyes smaller than in M. limbata. Antennas more 

 than two thirds the length of the body in the male, rather 

 shorter in the female, robust, the second joint short, the third 

 and fourth nearly equal in length, each more than twice as 

 long as the second ; the fifth rather shorter, slightly longer 

 than the seventh, the eighth in the male suddenly thickened 

 and elongate, clavate, its apex obliquely truncate ; in the 

 female this joint is not thickened, and equals the seventh in 

 length ; in the male the third to the seventh, in the female 

 the third to the eighth, gradually but very slightly increase 

 in thickness ; the ninth to the eleventh joints in both sexes 

 are abruptly narrowed and much shorter than any of the pre- 

 ceding joints, the second excepted. Thorax more than twice 

 as broad as long ; sides nearly parallel at the base, thence 



