328 Mr. M. Jacobj/^s contributions to the knowledge of 
Resembles very nearly^, pedoralis, but has an entirely 
black head and pale flavous thorax and legs. Some 
specimens have the first three joints of the antennae 
flavous only. The elytral punctuation is, perhaps, still 
coarser and somewhat more regular than in A. pedoralis, 
but I am not able to find any other differences of 
importance, and it is possible that the present species is 
only a variety of the last-named ; but, having three 
specimens before me which all agree with each other, I 
must look upon the species as distinct. 
Galerucella congoensis, sp. n. 
Very elongate, fuscous, finely pubescent, base of the head and 
the antenna (the basal joint excepted) black ; thorax obscurely 
fulvous with three dark spots, strongly narrowed at middle ; elytra 
obscurely testaceous with three longitudinal costag. Length, 5 
lines. 
Of very elongate and parallel shape, the head finely rugose and 
pubescent, the vertex black, with a longitudinal central groove, 
frontal tubercles transversely oblique, testaceous, labrum black; 
antennae extending to the middle of the elytra, fuscous, the first 
joint and the base of the second testaceous, third joint distinctly 
shorter than the fourth ; thorax rather more than twice as broad 
as long, strongly constricted at the middle, the sides widened and 
rounded at the middle, the angles not produced, the basal margin 
oblique at each side, the surface with a central narrow groove from 
the base to the apex, obscurely fulvous, finely rugose and pube- 
scent, the sides and the middle with an obscure fuscous spot, the 
former with a shallow depression ; scutellum testaceous, rather 
longer than broad, its apex truncate, the surface pubescent ; elytra 
obscurely testaceous, more or less stained with fuscous, the basal 
portion sometimes with a slight greenish tint and shining, the 
punctuation fine and extremely close, the pubescence fine and 
short, greyish, the disc with three more or less distinct and abbre- 
viated longitudinal costoe, of which the sublateral one is more 
acutely raised than the others; underside and tibise black, the 
lower edges of tiie abdominal segment testaceous. 
Hob. Congo j my collection. 
This is one of the most elongate species of the genus, 
and differs principally in the shape of the thorax and 
the sculpture of the elytra from the three or four other 
African species known. 
