382 RHYNCHOPHORA. 
the apex in front. Head rugosely punctate, depressed between the eyes, carinate above; rostrum very 
stout, curved, gibbous at the base, not longer than the head and prothorax, rugulose and squamose, 
sulcate laterally, unicarinate above, the apex bare and sparsely punctate, the antenne inserted at from one- 
third to one-fourth from the apex, joint 2 of the funiculus shorter than 1. Prothorax a little broader than 
long, convex, narrowed and constricted in front, strongly bisinuate at the base ; the surface very uneven, 
rugosely punctate and nodose, carinate to near the base, with four tubercles on the disc and two at the 
apex, the dise with a transverse depression between the anterior tubercles which is limited on each side 
behind by a curved ridge, the flanks with a smooth flattened bare space behind. Elytra strongly constricted 
below the humeri and narrowing from a little beyond this to the apex, the base sinuate; seriate-punctate, 
the interstices 3, 5, 7, and 9 (except at the tip) sharply costate, the ridge on 3 and 5 twice, and that on 
7 once, broadly, abruptly interrupted, the median elevation on 3 swollen and very prominent, 10 with a 
short acute ridge at the base. Mesosternum flattened between the coxe, bituberculate in front. Ventral 
segments very sparsely, finely punctate. Femora clavate, bidentate, the outer tooth very small. Tarsal 
claws with a short tooth. 
Length 5-5, breadth 24-3, millim. (¢ 2.) 
Hab. GuateMALA, Duefias, Capetillo, San Gerénimo (Champion). 
Seven specimens. A very remarkable species, separable from others with two large 
swollen dorsal prominences on the elytra and a tuberculate prothorax by the transverse 
depressed space at the middle of the disc of the latter, this space being covered with 
ochreous scales and interrupted by the median carina, which is continued forwards 
on to the head and rostrum. The elytra have a flattened space at the apex, the 
prominences abruptly terminating posteriorly. 
74. Conotrachelus .trilineatus, sp. n. (Tab. XIX. fige. 19, 19a, 2.) 
Oblong-ovate, opaque, nigro-piceous, the antennae, the tip of the rostrum, and the tarsi ferruginous; the 
vestiture very fine, close, brownish, slightly intermixed with ochreous, especially on the head, rostrum, 
prothorax, and legs; the prothorax with a sinuous, anteriorly converging, ochreous line extending down 
each side of the disc from the apex to near the hind angle, a short, curved, similarly-coloured line running 
inwards from it at the base and a short longitudinal one along the outer margin; the elytra with a 
common, broad, curved, sordid-ochreous fascia towards the apex, extending outwards to the lateral 
margin, the apical declivity obsoletely setulose; the femora biannulate with whitish, the anterior pair 
with a line of fulvous scales at the base. Head densely, rugulosely punctate, transversely depressed and 
foveate between the eyes; rostrum stout, curved, about as long as the head and prothorax, squamose, 
rugulosely punctate and feebly tricarinate, the apex sparsely punctate, shining, and bare, the antenne 
inserted towards the tip, joints 1 and 2 of the funiculus subequal in length. Prothorax slightly broader 
than long, subquadrate, toothed at the sides before the middle and abruptly narrowed in front, the base 
feebly bisinuate; the surface uneven, densely, rugulosely punctate, incompletely carinate down the 
centre, and with small, scattered, smooth tubercles on the disc, two of these being conspicuous, the flanks 
very coarsely punctate. Elytra narrowing from about the basal third, strongly constricted below the 
humeri, which are rounded and prominent in front; rather finely seriate-punctate, the interstices densely 
rugulose, 3, 5, 7, and 9 sharply costate, the ridge on 3 and 5 twice, and that on 7 once, broadly, abruptly 
interrupted. Mesosternum flattened between the cox, hollowed in front. Ventral segments very 
sparsely, finely punctate. Femora clavate, bidentate, the outer tooth small. Tarsal claws with a short 
tooth. 
Length 6, breadth 3 millim. ( 9.) 
Hab. GuatEMALA, Cerro Zunil, Pacific slope (Champion). 
Two specimens. Separable from most of the species with a common, curved, broad, 
