54, Mr. H. W. Bates on the Longicorn Coleoptera 
. curvatis, dorso brunneo vittis posticis duabus nigris intus albo 
notatis: elytris breviter setosis, brunneis, postice nigro alboque 
guttatis, apice rotundatis. Long. 3; lin. ¢. 
Head dingy brown. Antenne scarcely twice the length of the 
body, setose, the bristles much longer and more numerous be~ 
neath than above; reddish, tips of all the joints blackish ; bases 
of the joints, from the fourth, pallid. Thorax broad, lateral 
spines very thick, large, and pointed, slightly curving and placed 
at a short distance from the posterior angles; surface anteriorly 
clear brown, posteriorly dusky, with two indistinct black vitte 
not reaching the front margin, and dotted on their inner sides 
with whitish; there are also other white specks on the base and 
sides. lytra rather more convex than in the allied species, 
scarce perceptibly truncated at the tips; surface clothed with 
shortish bristles, which are decumbent, instead of suberect as im 
the preceding species, and which arise from punctures placed in 
rows independent of the smaller irregular basal punctures ; the 
colour is purplish brown, with a few indistinct black streaks and 
dots, and, behind the middle, a number of white specks. Body 
beneath and legs reddish, clothed with ashy pile; legs hirsute, 
but not bristly. ‘ 
S. Paulo, Upper Amazons. 
Genus SPoreTus, nov. gen. 
Body elongate-oblong, free from inequalities on the surface. 
Antenne twice the length of the body, setose both above and 
beneath. Thorax subquadrate, rounded on the sides, and not 
widened from the front, the lateral spies forming small obtuse 
tubercles situated some distance from the hind angles. Elytra 
oblong, clothed with stiff hairs, simply and briefly truncated at 
the tip. Thighs clavate; hind tarsi with the basal joint elon- 
gated. Apical abdominal segment with both dorsal and ventral 
plates notched in the male, forming a sheath to the more or less 
exserted ovipositor in the female, the dorsal plate of which is 
pointed, the ventral truncate. 
The few species combined to form this group differ from all 
the other genera of setose Leiopodine in the oblong narrow 
form of their bodies and the subquadrate shape of the thorax, 
‘with the shortness of its lateral spmes. In colour they are 
either blackish with ashy spots, or grey sprinkled with blackish. 
§ 1. Ovipositor of the 2 short, scarcely apparent beyond the tips of the 
elytra (Chetissus). 
1. Sporetus (Chetissus) porcinus, n. sp. 
S. elongatus, hirsutus, griseus, fusco conspersus: capite thoraceque 
elytris angustioribus. Long. 23 lin. 9. 
Head dull greyish. Antenne brownish, with the bases of the 
