274 Mr. F. P. Pascoe-—Additions to the 
distant from them as in Acmocera, point rather to the Lamiine sub- 
family, and particularly to the neighbourhood of the last genus. I 
have retained M. Chevrolat’s specific name, which seems to have been 
suggested by the three teeth of the prothorax—the central and two 
lateral. 
Idactus tridens. 
I. griseo-brunneus, colore dilutiore varius ; antennis maculatis, scapo fusco. 
Hab, Natal. 
Covered with a greyish-brown pubescence, varied, principally on the 
middle of the elytra, with paler; head with an impressed line extending 
to the epistome; prothorax with a strong triangular tooth in the centre 
of the disk, two small tubercles in front of it, the lateral tooth occupy- 
ing the middle third or rather more; scutellum transverse, rounded 
behind ; elytra irregular, slightly narrowing from the shoulders, each 
with the apex rounded, and having at the base an elevated compressed 
crest crowned with close-set brown hairs, and another posteriorly, of 
the same kind, but smaller; body beneath and legs with a grey pile; 
antennee brown, ringed at the bases of the joints with paler, the scape 
dark brown. Length 5 lines. 
EMPHREUS. 
Caput antice quadratum, tuberibus antenniferis basi approximatis. Ocul 
parvi, late emarginati. Antenne breves; scapo foveato, claviformi, 
articulo tertio quarto breviore, czeteris multo brevioribus. Prothorax 
transversus, irregularis, postice constrictus, ad latera spina media ob- 
tusa. Elytra subtrigonata, irregularia, basi cristata. Pedes validi,. 
eequales; femora sublinearia; tébie antice recte, intermediz emargi- 
natee ; tarsorum omnium articulo basali breviter triangulari. Pro- et 
meso-sterna simplicia. 
Mr. White referred the only known species of this genus to Aemo- 
cera (Dej.). It belongs, however, to something very different to the 
one described by M. James Thomson under that name, and is in fact 
closely related to Phryneta, from which it is distinguished by its 
simple sterna and other characters. It is from Natal. The type is 
Emphreus ferruginosus. 
Acmocera ferruginosa, White, Proc. Zool. Soc. 1858, pl. 3. fig. 8. 
CHREOSTES. 
Characteres ut in Phryneta, sed oculi parvi, laterales. 
Phryneta has, with few exceptions, the largest eyes to be found 
among the Lamiide ; but in this genus they are small, even in com- 
parison with the ordinary forms of the family, and are entirely con- 
