PERIDINETUS. 179 
14. Peridinetus costatus, sp. n. (Tab. X. figg. 27, 27 a.) 
Oblong ovate, piceous, the antenna, tibie, and tarsi ferruginous; the head, an interrupted vitta on each side 
of the prothorax, as well as a faint median line, and a common, transverse, fascia on the disc of the 
elytra at about one-third from the apex, clothed with small, hair-like, ochreous scales, the rest of 
the vestiture very sparse and fine, white intermixed with ochreous, that on the prothorax wholly 
ochreous. Head sulceate between the eyes; rostrum shining, stout, arcuate, very sparsely, minutely 
punctate ; joint 2 of the funiculus shorter than 1. Prothorax rather convex, broader than long, con- 
stricted and much narrowed in front, the sides parallel at the base ; densely, confluently punctate. Elytra 
moderately long, subtriangular, transversely depressed on the disc below the base; finely punctate-striate, 
the interstices rugulose, the alternate ones strongly, interruptedly costate, 2, 4, and 6 also sharply costate 
on the apical declivity. Ventral segments rather closely punctate. 
Length 34-4, breadth 13-12 millim. (¢?) 
Hab. Mexico (Hége, in coll. Solari); GuatemaLa, Zapote (Champion). 
Two specimens. Near P. opacus, the prothorax more rounded at the sides, 
the elytra sharply ochreo-fasciate on the disc beyond the middle, transversely 
depressed below the base, and with all the interstices interruptedly costate, the 
short ridge near the base of the third very prominent. /P. costatus has the facies of 
a Conotrachelus. 
15. Peridinetus stigmatipleura, sp. n. (Tab. X. fig. 28.) 
Oblong, piceous or brown, the antenne, tibie, and tarsi, the base of the femora, and sometimes the head and 
rostrum also, ferruginous or reddish; somewhat sparsely clothed with very fine, hair-like, ochreous 
scales, the prothorax with a denser, posteriorly evanescent, ochreous vitta on each side, the vitte with 
intermixed coarser white scales towards the anterior margin; the elytra each with two chalky-white 
spots on the fourth interstice—one before and one beyond the middle (the posterior one often larger and 
extending inwards across the third interstice, the anterior one sometimes wanting)—and a large dense 
chalky-white patch at the sides below the shoulder, this latter extending downward on to the sides of the 
metasternum; the vestiture of the abdomen very sparse and whitish, becoming denser along the sides. 
Rostrum very stout, arcuate, cylindrical, a little longer than the prothorax, finely, shallowly, very sparsely 
punctate in the g,smoother inthe 2. Prothorax transversely rounded at the sides anteriorly, constricted 
and narrowed in front; finely, rugulosely punctate. Elytra wider than the prothorax, oblong- 
subtriangular ; finely punctate-striate, the interstices rugulose, becoming narrowly costate at the apex. 
Ventral segments very sparsely punctate, unimpressed. 
Length 3-4,1, breadth 14-14 millim. (¢ 2.) 
10? 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 
Numerous specimens. ‘This species has a large, transverse, dense, chalky-white 
patch at the sides of the body beneath and two small white spots on the fourth inter- 
stice of each elytron. ‘The ochreous vitte on the prothorax sometimes have intermixed 
white scales towards the apex. The sexual differences are slight, if I have rightly 
identified the male and female. 
16. Peridinetus quadrimaculatus, sp. n. (Tab. X. figg. 29, 29a, 3.) 
Elongate, opaque above, rufo-piceous, the antenne (the club excepted) and legs ferruginous ; somewhat thickly 
clothed with very minute, hair-like, fulvous scales (which are partly hidden by a similarly-coloured exuda- 
2AA 2 
