222 RHYNCHOPHORA. 
24. Diorymerus serrulatus, sp. n. (Tab. XII figg. 30, 30a; 304, 
intermediate leg.) : 
Ovate, shining, black, the elytra sometimes rufo-piceous towards the sides. Head with a few minute 
punctures, transversely depressed between the eyes; rostrum exceedingly stout, short, closely punctate. 
Prothorax with a few very minute scattered punctures, and a line of coarser impressions along the basal 
margin, the base depressed on each side of the median lobe. Scutellum small, subquadrate. LElytra 
depressed along the suture, the inner strie deep, the others (the marginal ones excepted) faint or almost 
obsolete, all distinctly punctate. Beneath, the flanks of the prothorax included, sparsely, coarsely 
punctate. Legs short, closely punctate; femora sulcate beneath, the intermediate and posterior pairs 
finely denticulate along the edges of the sulcus; tibia almost straight, all sharply angulate near the 
. base externally. 
Length 27,-23, breadth 12-12 millim. _ 
Hab. Mexico, Teapa (H. H. Smith), Tapachula (Hoge); Guarumana, San Juan in 
Vera Paz (Champion); Nicaragua, Chontales (Janson). 
Eleven specimens, the two from Chontales having the dorsal striz of the elytra 
(the first excepted) only just traceable. Differs from all the small allied forms in the 
finely denticulate lower outer edge of the intermediate and posterior femora. 
The prothorax has a very distinct row of punctures along the basal margin, and 
all the tibie are sharply angulate externally. 
25. Diorymerus sulcatus, sp.n. (Tab. XII. figg. 31; 31a, hind leg.) 
Ovate, shining, black, the tarsi, tip of the rostrum, and antenne (the club excepted) more or less ferruginous. 
Head with a few minute punctures, transversely depressed between the eyes; rostrum arcuate, stout, 
as long as the prothorax, sparsely punctate. Prothorax rounded at the sides (which do not form a 
continuous outline with the sides of the elytra), strongly constricted in front, almost smooth, the base 
depressed on each side of the median lobe. Scutellum small, subquadrate. Elytra depressed along the 
suture, deeply striate throughout, the strie feebly punctate, the interstices smooth. Beneath very 
sparsely punctate. Legs comparatively slender, sparsely punctate; femora sulcate beneath, the inter- 
mediate and posterior pairs with the edges of the sulcus finely denticulate ; tibis almost straight, each 
angulate near the base externally, the anterior pair somewhat elongated. 
Length 24, breadth 13 millim. (9?) 
Hab. Panama, Volcan de Chiriqui (Champion). 
One specimen. Very like D. exaratus (of which it would at first sight appear to be 
the female), but with the rostrum more slender and regularly arcuate, the prothorax 
with the sides somewhat converging at the base, the elytra shorter and depressed 
along the suture, the intermediate and posterior femora finely denticulate beneath, the 
tibie less acutely angulate externally. 
