135 
2. Toronaus suavis, n. sp. 
T. oblongus, convexiusculus, nigro-castaneus, capite thoraceque vitta 
central! ochracea : elytris litura humerali, fascia obliqua pone 
medium, linea arcuata lateral! prope apicem, suturaque postice 
cinereo-ochraceis. Long. 3^-5^ lin. cS $ . 
Head dark brown, sides of forehead and cheeks each with a 
yellowish streak, vertex with a broad central yellowish stripe. 
Antennae slender, reddish, tips of joints dusky, bases of third 
to sixth joints pale. Thorax not much broader than the head, 
and with a slight protuberance on each side about the middle, 
but no trace of spine or tubercle ; above dark chestnut, silky, 
sides whitish, the middle traversed by a yellowish stripe con- 
tinuous with that of the head. Scutellum ochreous. Elytra in 
both sexes gradually narrowed from base to apex, the latter 
sinuate-truncate; surface punctured, except towards the apex, 
dark brownish chestnut ornamented with yellowish-ashy marks ; 
there is a small spot on each side of the scutellum, a patch be- 
neath and a curved line above the shoulder, an oblique stripe 
beginning about the middle of each side, and extending to the 
suture, connected with a lighter streak on the disk, and, lastly, 
a distinct arcuated yellowish line on each side near the apex ; 
the suture near the base and apex is also bordered with yellowish 
ashy. Body beneath hoary white, breast and base of abdomen 
on each side with dark oblique stripes ; abdomen sometimes 
reddish. Legs reddish ; apical halves of tibiae and tarsi black ; 
basal joints of tarsi ashy. 
c? Terminal abdominal segment with dorsal and ventral plates 
rather deeply notched. 
$ Ovipositor greatly elongated and exserted beyond its sheath, 
apical dorsal plate pointed, ventral deeply and narrowly cleft. 
This pretty species, which differs from T. figuratus by the 
more tapering shape of its elytra, and by the markings on the 
surface of the wing-cases, was met with at various places on the 
southern side of the Lower Amazons, and on the banks of the 
Tapajos, but never in abundance. 
3. Toronceus perforator j n. sp. 
T. oblongus, convexiusculus, fuscus, nigro fulvo canoque variegatus : 
elytris apice cinereo marginatis et fasciatis ; foeminse stylo elonga- 
tissimo. Long. 3|-5g lin. ^ $ . 
Head velvety black, cheeks ashy, vertex with a short yellow 
line. Antennae slender, more than twice the length of the body 
in both sexes, reddish testaceous, all the joints except the first 
and second with a pale ring at their bases. Thorax very little 
broader than the head, the sides in the middle with a slight 
