174 RHYNCHOPHORA. 
Purula, San Juan, Senahu, and Cubilguitz in Vera Paz, El Tumbador, Las Mercedes, 
Zapote, Capetillo (Champion). 
Not rare on the Atlantic and Pacific slopes of Guatemala, and also found on the 
Atlantic slope of Mexico. Less elongate than P. cretaceus, and wanting the chalky- 
white apical patch on each elytron, the metasternum not protuberant between the 
middle cox. ‘The male has the first ventral segment broadly excavate, and the fifth 
shallowly depressed, down the middle. The first joint of the funiculus is much longer 
than the second. 
4. Peridinetus trifasciatus, sp.n. (Tab. X. figg. 17,17, 6.) 
Oblong-rhomboidal, shining, black, the legs (the knees excepted) in great part ferruginous; the base of the 
rostrum, the head, the sides of the prothorax, and the upper half of the mesothoracic epimera, sparsely 
clothed with minute, hair-like, fulvous scales; the elytra with three broad, transverse, dense fascize 
of small, oval, pure white scales—one before the middle, extending obliquely forward at the sides and 
continued over the whole of the lateral portion of the metasternum, one beyond the middle, and one at 
the apex, the last two very narrowly separated,—the rest of their upper surface with a few hair-like 
scales similar to those on the prothorax; the ventral segments 2-4 with a spot on each side, and the 
apical half of 5, and the legs also, clothed with white scales. Head minutely punctate, deeply sulcate 
between the eyes; rostrum very stout, arcuate, slightly longer than the prothorax, sparsely, minutely 
punctate, the antenne inserted at a little beyond the middle, joint 2 of the funiculus fully as long as 1, 
the club rather long, acuminate-ovate. Prothorax conical, slightly broader than long, constricted at 
the sides in front; sparsely, minutely punctate. Elytra elongate-triangular ; finely punctate-striate, the 
interstices flat, closely, minutely punctate, the bare spaces almost smooth. Metasternum depressed 
between the middle coxe. Ventral segments 1 and 2 broadly depressed down the middle. Posterior 
tibie strongly sinuate. 
Length 83, breadth 33 millim, (¢.) 
Hab. Panama, Chiriqui (coll. Fry). 
One male, probably found by Trétsch. The three broad, dense, pure white, narrowly 
separated, transverse fasciee of the elytra, the deeply sulcate frons, &c., readily distin- 
guish P. trifasciatus. 
5. Peridinetus melastome, sp.n. (Tab. X. figg. 18, 18a, 3.) 
Oblong-rhomboidal, shining, nigro-piceous or piceous (the rostrum, antenna, and legs, in part, ferruginous in 
one specimen) ; the elytra with a space along their lower margin, the apex, a faint transverse subapical 
fascia, and an oblique, evanescent fascia on the disc at about the middle, the metasternum (densely), a 
spot on each side of the ventral segments 2-5, and the legs in part, clothed with small pure white scales ; 
the rest of the upper surface and legs, the flanks of the prothorax, and the mesothoracic side-pieces, with 
narrow, hair-like, ochreous scales, the rest of the ventral segments almost bare. Head minutely punctate, 
deeply sulcate between the eyes; rostrum strongly arcuate, stout, sparsely, minutely punctate; joints 
1 and 2 of the funiculus equal in length. Prothorax conical, closely, finely punctate, with indications of 
a smooth raised median line. Elytra elongate-triangular, obliquely depressed on the disc below the base 
and at the sides beyond the middle; finely punctate-striate, the interstices almost fiat and closely 
punctulate, 3 narrowly costate near the apex. Ventral segment 1 depressed down the middle posteriorly, 
and the posterior tibia sinuate, in the ¢. 
Length 62-9, breadth 3-4 millim. (¢ 2.) 
Hab. Costa Rica, Arcangeles 1500 metres (Biolley). 
