200 Mr. Jacoby’s descriptions of phytophagous 
the apex of each elytron; the two black spots of the 
latter are present, as in the other specimens ; the sides 
of the breast, the abdomen, and the tibie are more or 
less stained with piceous. In the var. c, which does 
not materially differ from the normal forms, the entire 
elytra are black and rather more finely punctured. 
Mr. Baly, in his diagnosis of the genus, gives the 
antenne as nearly equal to the body in length; this is 
not the case with any of the male specimens before me, 
in which the antenne do not exceed half the length. 
Mesodonta submetallica, n.s. (Pl. VIL., fig. 10). 
Metallic green or blue; antenne black, the apical joints dilated; 
thorax with several depressions, rugose-punctate ; elytra fulvous, 
with a metallic gloss, finely and closely rugose. Length, 
4—4} lines. 
Head metallic blue, strongly rugose; labrum testaceous ; palpi 
fulyous; antenne nearly half the length of the body, black, the 
third joint the longest, the fifth to the terminal joints gradually 
shortened and dilated; thorax transverse, the sides deflexed, the 
lateral margins nearly straight, the posterior angles oblique, the 
surface with a depression near the anterior margin and another 
one of oblique shape at each side, bright metallic-blue or green, 
closely and strongly punctured and rugose; scutellum broad, 
metallic violaceous, punctured ; elytra dark fulvous, with a slight 
purplish gloss, extremely finely and closely punctured and rugose, 
their epipleure indistinct below the middle ; legs robust, metallic 
bluish; tibie channelled; the first joint of the posterior tarsi 
rather shorter than the two following joints together ; claws bifid ; 
the anterior coxal cavities open. 
Hab. N’gami, Zambesi, Africa (my collection). 
The dilated terminal joints of the antenne, the im- 
pressed thorax, channelled tibie, and bifid claws seem 
to me to place the present insect in Mesodonta; the 
male does not, however, possess the spine at the inter- 
mediate tibie, as in M. marginata, Baly. 
Oraciuus, n. g. (Galerucine). 
Body elongate; antenne filiform, the third joint one-half longer 
than the second; thorax transverse, the posterior margin rounded, 
the sides narrowed towards the apex; surface without depressions ; 
elytra irregularly punctured, their epipleure narrow, continued 
