72 RHYNCHOPHORA. 
iS}e) 
inserted behind the middle. Prothorax conical, a little broader than long, constricted and tubulate in 
front; very sparsely, minutely punctate. Scutellum small, transverse. Elytra oblong-subtriangular, 
slightly wider than the prothorax, transversely depressed at the base ; finely, sharply striate, the striz 
feebly punctate, the first and second not reaching the base, the interstices flat, each with a few scattered 
excessively minute punctures. Pygidium transverse, densely punctate, vertical, the last dorsal segment 
longitudinally carinate down the middle posteriorly. Beneath sparsely punctate. Prosternum broadly 
sulcate from the flattened basal process to the transverse subapical groove, the sulcus convex for some 
distance along the middie and bordered on each side in front of the coxe by a short subangular ridge, 
the basal process margined laterally and on the same plane as the connate meso- and metasternum 
(fig. 88d). Anterior coxe separated by about their own width, Femora unarmed, sulcate. 
Length 55%, breadth 22 millim. ( 9.) 
Hab. Mexico (Mus. Brit.). 
One female. Distinguished amongst its allies by the flattened, slender rostrum, 
which is abruptly thickened and gibbous at the base, the broadly sulcate prosternum, 
and the sharply striate elytra, the first and second strie not reaching the base. ‘The 
prosternal structure is not unlike that of IW. bisulcatus. 
15. Madarus vorticosus. (Tab. XIX. figg. 1, 1a, ¢.) 
Madarus vorticosus, Boh. in Schénh. Gen. Cure. iii. p. 639°. 
Madarus verticosus, Schonh. op. cit. viii. 1, p. 106°. 
g. Anterior tarsi slightly dilated, hairy, the anterior tibie also hairy within; rostrum with the narrowed 
apical portion a little shorter than the basal portion ; first ventral segment flattened down the middle. 
©. Rostrum with the apical portion abruptly narrowed, longer than tbe basal portion, almost smooth, and 
more slender. 
Ilab. Mexico! ? (Lruqui), Matamoros Izucar, Toxpam (Sallé), Cordova (Knab, in 
U.S. Nat. Mus. ; Hoge), Jalapa (Hoge), Orizaba (Sallé, H. H. Smith), Tehuantepec 
(us. Brit.). 
Distinguishable by the somewhat close vestiture, which is condensed into a dense 
oblong patch at the base of the third elytral interstice, and sometimes into a smaller 
patch at the base of the fifth also, the closely punctured, eneous surface, and the 
abruptly narrowed rostrum of the female. 
16. Madarus distigma. (Tab. XIX. fig. 2, ¢.) 
Madarus distigma, Boh. in Schénh. Gen. Cure. viii. 1, p. 107°. 
3. Anterior tarsi slightly dilated, hairy, the anterior tibie also hairy within; rostrum with the narrower 
apical portion about as long as the basal portion; prosternum transversely tumid between the coxe 
anteriorly ; first ventral segment flattened down the middle. 
2. Rostrum with the apical portion a little smoother, otherwise as in the ¢. 
Hab. Mexico}, Playa Vicente (Sal/é), Santa Lucrecia in Vera Cruz (Kanab, in U.S. 
Nat. Mus.), Teapa (H. H. Smith), Yucatan (Mus. Brit.); Brrrish Honpvras, Belize 
(Blancaneaux) ; GuatemaLa (Mus. Brit.), Panzos, Teleman, Chacoj, El Reposo, Rio 
Maria Linda (Champion); Nicaragua, Managua (Solari); Costa Rica, Zent and 
Banana River (Anab, in U.S. Nat. Mus.), Alajuela (Orozco), Reventazon (Biolley), 
