254. RHYNCHOPHORA. 
at a little behind the middle, the antennal club oblong-ovate. Prothorax transverse, conical, strongly 
constricted in front, smooth, slightly depressed at the base on each side of the median lobe. Scutellum 
transverse. Elytra rather long, triangular, the humeri rounded ; each elytron with five faintly punctate, 
sharply-cut stria on the disc and two incomplete marginal ones beneath, the sixth, seventh, and eighth 
obliterated, the interstices broad, smooth, and flat. Meso- and metasternal side-pieces with coarse 
scattered punctures, the abdomen almost smooth, except at the base and apex. Prosternum deeply 
excavate, the sulcus limited posteriorly by a U-shaped groove between the anterior coxe. Legs 
moderately long ; tarsal claws very small, subconnate at the base. 
Length 32, breadth Lo, millim. ( 9.) 
Hab. Panama, Volcan de Chiriqui 4000 feet (Champion). 
One specimen. ‘This species has five sharply-cut strie on the disc of each elytron 
(one less than in D. histeroides), the elytra themselves are rapidly narrowed from the 
base, the rostrum is elongate, and the prosternal excavation is sharply margined between 
the coxe. | 
4. Diorymerellus 12-striatus, sp. n. 
Rhomboidal, narrow, shining, nigro-piceous, the elytra fusco-castaneous ; glabrous above, the under surface 
and legs with minute scattered whitish scales. Head sparsely, minutely punctate, transversely grooved 
between the eyes; rostrum arcuate, very little longer than the prothorax, stout, finely punctate, strigose 
at the sides. Prothorax small, transverse, subconical, strongly constricted in front; sparsely, minutely 
punctate, smooth along the median line, Scutellum subquadrate. Elytra much widen than the* pro- 
thorax, triangular; each elytron with six narrow, feebly-punctured, sharply-cut strie and a marginal 
one beneath, the others obliterated, the interstices broad and flat. Beneath sparsely, the ventral 
segments 1-4 very finely, punctate. Prosternum deeply sulcate. Legs short; femora feebly sulcate 
beneath ; tarsal claws minute, subconnate at the base. 
Length 2, breadth 1 millim. 
Hab. Panama, Volcan de Chiriqui ( Champion). 
One specimen. Smaller and much narrower than D. levipennis, the elytra triangular 
and each with six strie on the disc, the prosternal cavity becoming narrower behind 
and not extending beyond the anterior cox. Narrower than D. castaneicolor, the 
legs shorter, the prothorax less conical than in D. octostriatus. 
5. Diorymerellus castaneicolor, sp. n. (Tab. XIV. fig. 10.) 
Short-ovate, flattened above, shining, castaneous, glabrous. Head minutely punctate; rostrum strongly 
arcuate, moderately stout, about as long as the head and prothorax, smooth (except at the sides), the 
-antenne inserted at about the middle, the antennal club stout, ovate, rather longer than joints 2-7 of the 
funiculus united. Prothorax transverse, strongly constricted in front, the sides arcuately converging 
from the base, almost smooth. Scutellum very small, oblong-subquadrate. LElytra broad, much wider 
than the prothorax, subtriangular, with the suture depressed at the base and the humeri swollen; each 
elytron with six sharply-cut strics on the disc and two marginal ones beneath, the seventh and eighth 
obliterated, the interstices broad, smooth, and flat. Meso- and metasternum closely, the ventral 
segments more sparsely, punctate, the propleura in great part smooth. Prosternum with a deep 
transverse excavation in front extending backward to the base, Anterior coxe separated by about their 
own width. Tarsal claws very small, connate at the base. 
Length 23, breadth 12 millim. 
Hab. Mexico, Toxpam in Vera Cruz (Sallé). 
