Or 
and its Neo-Tropical Allies. 9 
Bacrrivs. 
Characteres ut in Hilopodo, sed femora mutica, et 
tibie antice flexuose, omnes haud mucronate, intus 
multidentate. 
Other characters might probably be adduced, but 
seeing how uncertain is their value generically it is 
better to omit them until a congener be discovered ; the 
two here given may be considered absolute ; the cha- 
racter of the tibie distinguishing it from Plethes, which 
has the bisinuate and mucronate tibie of Hilipus. The 
two individuals in my collection differ considerably in 
size, the largest being probably the male. The habit is 
peculiar, but reminds one in a sheht degree of Lophotus 
vitulus (Fab.) 
Bactrius lophotoides. (Pl. I1., fig. 9—side view.) 
B. oblongus, umbrinus, silaceo-squamosus, setulis 
nigris adspersus; prothorace apice elevato, bituberculato. 
Long. 33—5¢ lin. 
Hab. Espiritu Santo. 
Oblong, umber-brown, with round approximate sila- 
ceous scales, and scattered black setulae; rostrum rather 
shorter than the prothorax, stout and nearly straight, 
with three carine in front; antenne ferruginous; first 
joint of the funicle longer than the second and third, 
the second a little longer, the three following elongate- 
turbinate, the last nearly as long as the third; the club 
scarcely longer than the last two together; eyes lateral, 
acuminate below; prothorax oblong, broadest anteriorly, 
the base truncate, the apex elevated, and having two 
erect approximate tubercles topped with stiff black 
scales ; scutellum rounded ; elytra a little broader than 
the prothorax at the base, gradually rising posteriorly 
into a slight gibbosity, then. descending abruptly to the 
acuminate apex, the sides slightly rounded, serlate- 
punctate, punctures rather large, each with a white 
scale in the centre; body beneath and legs more or less 
scaly and setulose ; the last segment of the abdomen 
long and narrow. 
