178 RHYNCHOPHORA. 
apical patch wanting, and the seventh interstice narrowly costate throughout. There 
is a very closely allied unnamed form from Peru in the Fry collection. 
12. Peridinetus nodicollis, sp. n. (Tab. 1X. figg. 25, 25a.) 
Subovate, shining, black, the rostrum, antenne, meso- and metathoracic side-pieces, legs (the anterior and 
intermediate femora excepted), and the sides of the elytra at about the middle, ferruginous ; the head in 
front, the prothorax with two oblique lines on each side posteriorly, and the anterior lobe, clothed with 
narrow, intermixed, ochreous and white scales, the prothorax also with a dense cluster of short, erect, 
ochreous scales, enclosing a black spot, on each side of the disc before the middle ; the elytra with a 
broad space across the centre, extending forward along the sutural region to the base, variegated with 
ochreous, white, and black scales (the black scales clustered into an oblong spot on the second interstice, 
and a transverse streak below it across the interstices 3-6), the rest of their surface almost bare ; the meta- 
sternum (the ochreous episterna excepted), and an annulus near the apex of the hind femora, with white 
scales. Head minutely punctate, shallowly sulcate between the eyes and foveate on the vertex ; rostrum 
stout, arcuate, finely punctate at the base ; joints 1 and 2 of the funiculus subequal in length. Prothorax 
transverse, abruptly narrowed and strongly constricted in front, the sides parallel at the base; the 
posterior lobe somewhat gibbous in the middle anteriorly and depressed on each side of this, the median 
trilobate space smooth and bare; the flanks somewhat hollowed and with a few coarse scattered pune- 
tures. Elytra triangular, with the humeri and subapical callosities rather prominent; finely punctate- 
striate, the interstices punctulate (except at the tip), 2 costate at the apex. Ventral segments almost 
smooth, squamose along their outer margin only. 
Length 34-32, breadth 13-14 millim. 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 
Two specimens, probably male and female. Not unlike the S.-American P. sellatus, 
Boh., but narrower and less robust, the elytra triangular, the prothorax gibbous on 
the disc anteriorly and with a smooth trilobate space in the middle, the markings very 
different, &c. P. nodicollis has the general facies of a Conotrachelus. The prothorax 
appears to be margined at the sides, as seen from above. 
13. Peridinetus opacus, sp.n. (Tab. X. fig. 26.) 
Oblong, opaque, nigro-piceous or piceous, the antenne and tarsi ferruginous; sparsely clothed with very 
minute, hair-like, ochreous and white scales, which on the prothorax and elytra are clustered into small 
scattered patches, the vestiture of the head and prothorax entirely ochreous, that of the elytra partly 
white. Rostrum arcuate, very stout, sparsely, finely punctate, obsoletely carinate at the base. Joint 2 
of the funiculus shorter than 1. Prothorax transverse, strongly constricted and abruptly narrowed in 
front, the sides parallel behind ; closely, finely punctate. Elytra much wider than the prothorax, 
narrowing from the base ; finely punctate-striate, the interstices densely punctulate, the alternate ones 
narrowly costate at the apex. Beneath very sparsely punctate. 
Length 34, breadth 12 millim. (9?) 
flab. Panama, Volcan de Chiriqui (Champion). 
Two specimens. In this insect the upper surface is opaque, and clothed with small 
scattered patches of minute, ochreous and white, hair-like scales; and the prothorax is 
so abruptly narrowed anteriorly as to appear nodose on each side. P. opacus is perhaps 
“most nearly allied to P. nodicollis, though very dissimilar in appearance. It might 
easily be mistaken for a small Cryptorrhynchid. ; 
