210 RHYNCHOPHORA. 
Central America are now added. In this genus the very deep rostral canal extends 
into the intercoxal portion of the metasternum, as in many Cryptorrhynchids, and it is 
dilated on each side in front of the anterior coxe. 
1. Coleomerus isthmicus, sp. n. (Tab. XII. figg. 10, 10a, 6.) 
Coleomerus mexicanus, Solari, in litt. 
Somewhat rhomboidal, flattened above, shining black, the antenne ferruginous at the base. Head closely, 
finely punctate and also sulcate above between the very large, narrowly-separated eyes ; rostrum 
moderately stout, longer than the prothorax, widened at the apex, thickly punctate ¢excépt along the 
middle), smoother in the 2. Prothorax rapidly narrowing from the base, sparsely, minutely punctate, 
the punctuation becoming coarser and closer at the sides. Scutellum very small, triangular. Elytra 
subcordate, rapidly narrowing from a little below the base, depressed along the suture; very deeply 
striate throughout, the strie feebly punctate, the interstices flat and almost smooth. Beneath rather 
coarsely punctate, the punctures on the propleura closely placed. Legs short. 
Length 24-4, breadth 12-23 millim. 
Hab. Mexico (Hage, in coll. Solari); GuateMALA, Cahabon, Lanquin, .Chacoj, San 
Juan and Panima in Vera Paz (Champion) ; Panama, Bugaba, San Feliz (Champion). 
Numerous specimens, the one from Mexico much larger than the others. Near 
C. lugubris, Boh. (the type of which I have seen), but with the prothorax and elytra 
more rapidly narrowed from the base (the general shape being subrhomboidal, not 
short ovate), the elytra more deeply striate. C. ebeninus, Boh., from the Antilles, is 
said to have the head and rostrum smooth, &c. 
2. Coleomerus rotundatus, sp. n. 
Rotundate-ovate, flattened above, shining black. Head closely punctate, sulcate above between the very large, 
narrowly-separated eyes ; rostrum rather slender, longer than the prothorax, sparsely punctate at the 
sides only, flattened, smooth, and dilated at the apex; joint 1 of the funiculus nearly as long as 2-5 
united, the club short-ovate. Prothorax sparsely, minutely punctate, except along a narrow space down 
the middle, the sides finely strigose. Scutellum very small, subquadrate. Elytra rounded at the sides, as 
well as at the broad apex, depressed along the suture; deeply striate, the striae conspicuously punctate 
the interstices smooth and flat. Beneath sparsely punctate, the punctures on the ventral segments very 
fine and those on the meso- and metapleura coarse, the propleura sinuato-strigose, hollowed for the 
reception of the anterior femur. Legs very short. 
Length 34, breadth 2 millim. (9 ?) 
Hab. Panama, Volcan de Chiriqui 3000 feet (Champion). 
One specimen. Smaller than C. luguéris, Boh., the rostrum more slender, the 
propleura hollowed and strigose, the elytral strie deeper and conspicuously punctate, 
the legs very short. ‘The more rounded outline, subquadrate scutellum, strongly 
punctured strie, strigose propleura, and much shorter legs separate it from C. isthmicus. 
COLEOMEROPSIS, gen. nov. 
Prosternum strongly produced behind, covering the mesosternum, deeply sulcate to the apex, the posterior 
portion again excavate for the reception of the apex of the rostrum ; metasternum unimpressed ; eyes not 
approximate above ; prothorax deeply bisinuate at the base, the median Jobe almost covering the scutellar 
