MADARELLUS. 379 
Hab. Mexico (Mus. Brit.), Toxpam (Sailé), Cordova (Hége), Temax in Yucatan 
(Gaumer); Guatemala, San Gerénimo (Champion). 
This species is contained in most collections from Mexico and it has long been 
known under Chevrolat’s MS. name. J. inewqualis is closely related to the South- 
American and Antillean* J. laticollis, Boh., from which it differs in its rather 
larger size, the stouter rostrum, the more rugose propleura and legs, and the less 
excavate sides of the prothorax in front in the male, the excavation in M. laticollis 
being limited by a distinct prominence in that sex. 
2. Madarellus eruptus, sp. n. 
Cuneiform, very shining, nigro-piceous, with a distinct aneous lustre, almost glabrous. Head very finely 
punctate, transversely depressed between the eyes; rostrum rather longer than the head and prothorax, 
strongly arcuate, moderately stout, the basal portion thickened and coarsely punctate laterally, the 
longer apical portion abruptly flattened and faintly punctate, the antenns inserted behind the middle. 
Prothorax transversely convex, almost as wide as the elytra, rounded at the sides anteriorly, the 
tubulate apical portion narrow; the surface with widely-scattered excessively minute punctures, 
the flanks faintly strigose. Elytra subtriangular, depressed at the base, on the outer part of the disc 
beyond the middle, along the suture anteriorly, and at the sides below the humeri, the subapical 
callosities very prominent; finely striate, the striw faintly punctate, the interstices flat, angularly-raised 
at the apex, each with a single row of excessively minute punctures. Pygidium transverse, closely 
punctate. Beneath coarsely punctured along the sides, the propleura obliquely strigose, the median 
portion of the pro- and metasternum and the ventral segments very sparsely, finely punctate. 
Prosternum with two confluent sulci, the broad basal process binodose and somewhat abruptly declivous 
anteriorly. Anterior femora with a short, broad, triangular tooth. Anterior tibiz sinuous, dilated on 
the inner edge beyond the middle. 
Length 33-44, breadth 13-23 millim. (9.) 
Hab. Panama, Volcan de Chiriqui (Champion). 
Two specimens. A very shining form, with an almost smooth prothorax, finely 
striate, uneven elytra, an abruptly flattened rostrum (in the female), and a short 
broad tooth to the anterior femora, the basal process of the prosternum hollowed and 
binodose between the widely-separated anterior coxe f. 
3. Madarellus dilutus, sp. n. 
Cuneiform, shining, fusco-castaneous, the legs and rostrum nigro-piceous, almost glabrous. Head finely 
punctate, transversely grooved between the eyes ; rostrum a little longer than the head and prothorax, 
strongly and regularly arcuate, stout, thickened towards the base, closely punctate, the antenne inserted 
at about the middle. Prothorax transversely convex, rounded at the sides anteriorly, the tubulate 
apical portion narrow; the surface with excessively minute, widely-scattered punctures, the flanks 
finely, obliquely strigose and more distinctly punctate. Elytra subtriangular, depressed at the base, on 
the outer part of the disc beyond the middle, along the suture anteriorly, and at the sides below the 
humeri; finely striate, the strie faintly punctate, the inner ones (the first excepted) almost obsolete 
on the inner part of the disc, the interstices flat, angularly raised at the apex, each with a row of 
excessively minute punctures. Pygidium transverse, closely punctate. Beneath coarsely, the ventral 
* T have seen a long series of this insect from St. Vincent, Grenada, &c. 
+ Much as in the males of the species of Glyptobaris. 
3 CC 2 
