380 RHYNCHOPHORA. 
segments 2-5 sparsely and more finely, punctate, the propleura obliquely strigose. Prosternum with 
two confluent sulci, the broad basal process flattened and somewhat abruptly declivous anteriorly. 
Femora sulcate, the anterior pair armed with a triangular tooth and a smaller tooth in a line with it on 
_ the opposite ridge beneath. Anterior tibie sinuous, dilated from a little beyond the middle to the apex. 
Anterior tarsi with a few bristly hairs. 
Length 34-4, breadth 2 millim. (¢.) 
Hab. Guatemata, Las Mercedes, Pacific slope (Champion). 
Two males. Very like UM. eruptus, but with a less polished surface, the rostrum 
(3) stout and regularly arcuate, the inner dorsal strie of the elytra less distinct, the 
subapical callosities less prominent, the basal process of the prosternum flattened. 
4, Madarellus impressus. 
Baridius impressus, Kirsch, Berl. ent. Zeitschr. 1869, p. 212’. 
Hab. GuateMaLa, San Gerénimo in Vera Paz, Zapote (Champion); Panama, San 
Miguel in the Pearl Is. (Champion).—CotomB1a, Bogota?. 
Of this species we have obtained six specimens from our limits, agreeing with the 
type communicated by Dr. Heller. Distinguishable amongst the small allied forms 
by the very uneven, deeply striate elytra, the conspicuously strigose outer portion of 
the disc of the prothorax, and the rugosely punctate legs and under surface. The 
anterior femora have a stout, subtriangular tooth, and the other femora are obsoletely 
dentate. The prosternal sulci are confluent, together forming a broad subtriangular 
excavation. 
5. Madarellus cuneatus. 
Madarellus cuneatus, Casey, Ann. N. York Acad. Sci. vii. p. 603 (1893) °. 
Madarellus caseyi, Solari, Ann. Mus. Genova, xlii. p. 424 (1906) *. 
Hab. Nortu America, San Antonio! and Brownsville, Texas.—MeExico (Mus. Brit.), 
Teapa (Hége), Temax in N. Yucatan ( Gaumer); Britisa Honpvras 1, Belize, Rio 
Hondo (Blancaneaux); GuaTEMALA, Zapote (Champion) ; Nicaragua, Tipitapa, Lake 
Managua ° (Solari). 
M. cuneatus and M. caseyi were each described from a single specimen, the latter 
(kindly communicated by Signor Solari) having the prothorax more distinctly punctate 
than in the Texan d/. cwneatus, for examples of which we are indebted to Capt. Casey 
and Mr. Wickham, and the U.S. National Museum. The long series from 
Yucatan before me shows that the present species is very variable in size, and the 
prothorax is sometimes convex and broader than the elytra, and rather coarsely 
punctate, the line of punctures along the basal margin being always distinct. The 
tooth on the anterior femora is stout and rather long. The anterior tibie are widened 
at about the middle within. The prosternal sulci are sometimes confluent. The 
