MADARUS. 369 
One female. Less elongate than WM. scaphiformis, the elytra more distinctly striate 
on the disc, the interstices not costate at the apex, the prosternum unimpressed, the 
femora not sulcate, the rostrum not flattened towards the apex. The prothorax is 
subconical, and narrower and less convex than in J, clavipes, &c. ‘The minute 
interstitial punctuation of the elytra is rather close. 
8. Madarus eutoxoides, sp.n. (Tab. XVIII. figg. 32, 32a, 3.) 
Elongate, subfusiform, black, shining, glabrous. Head finely punctate, transversely grooved between the 
eyes; rostrum very stout, moderately curved, about as long as the head and prothorax, rather coarsely 
punctate, sulcate at the sides, the antenne inserted at the middle, the scape not nearly reaching the base,- 
the club oblong-ovate, acuminate, about as long as joints 3-7 of the funiculus. Prothorax as long as 
broad, somewhat convex, subconical, the sides becoming parallel towards the base, the base deeply 
sinuate ; sparsely, very finely punctate, the flanks finely, obliquely strigose. Elytra a little longer than 
the prothorax, triangular, transversely depressed at the base; very finely lineato-punctate, striate at 
the sides and apex, the interstices each with a row of excessively minute punctures. Pygidium large, 
rather convex, densely punctate. Beneath coarsely punctate along the flanks, for the rest much smoother, 
the second ventral segment densely, finely punctate in the middle in the ¢. Prosternum somewhat 
tumid between the widely separated anterior cox, the basal process truncate behind, the transverse 
subapical groove without fovee. Femora sublinear, unarmed, the anterior pair shallowly, the others 
deeply, suleate beneath. Tarsi nearly as long as the tibie, the anterior pair slightly dilated and with a 
few projecting hairs in the ¢. 
Length 6, breadth 22-2} millim. (¢ 2.) 
Hab. Panama, David (Champion: ¢ ), Tabernilla, Canal Zone (Busch, in US. Nat. 
Mus.: 2). 
One pair. This insect has wholly the facies of a small Hutoxus, but the pygidium 
is large and completely exposed. The prothorax is nearly as long as the elytra, and the 
rostrum is very stout and moderately long. 
9. Madarus tumefactus, sp.n. (Tab. XVIII. figg. 33, 33a, 3.) 
Elongate, somewhat fusiform ; glossy-black, glabrous above, the punctures of the under surface and legs each 
bearing a very minute whitish scale. Head sparsely, very finely punctate, transversely depressed between 
the eyes; rostrum strongly arcuate, very stout, a little longer than the head and prothorax, sparsely 
punctate, the antenne inserted slightly behind the middle, the antennal club large and acuminate, as 
long as joints 2-7 of the funiculus. Prothorax rather convex, almost as long as broad, gradually, 
arcuately narrowing from the deeply sinuate base, strongly constricted and tubulate in front; sparsely, 
very finely punctate (except along the smooth median line), obliquely strigose on the flanks. Elytra 
subtriangular, depressed at the base, along the suture, on the disc beyond the middle, and behind the 
humeri; very finely punctate-striate, the interstices each with a row of excessively minute punctures. 
Pygidium large, rather convex, closely punctate. Beneath sparsely, coarsely punctate; first ventral 
segment slightly depressed down the middle. Prosternum transversely tumid between the widely- 
separated coxze and broadly hollowed thence to the apex, the basal process shallowly arcuate-emarginate 
behind. Femora subclavate, unarmed, the intermediate and posterior pairs broadly sulcate beneath. 
Anterior tibiz narrow. Anterior tarsi slightly dilated, joint 2 strongly transverse, the apical 
uncus stout. 
Length 54, breadth 22 millim. (¢.) 
Hab. Panama, Bugaba (Champion). 
BIOL. CENTR.-AMER., Coleopt., Vol. IV. Pt. 5, September 1908. 3 BB 
