MASTOSTETHUS, 61 
robust; the elytra have the transverse black band at the middle narrower, and the 
apical spot smaller; and the male differs in the structure of the posterior femora. 
Mastostethus phaleratus (p. 23). 
To the localities given, add:—MeExico, Tuxtla (Sallé), Cordova, Jalapa (Hége) ; 
GuatemMata, San Gerénimo (Champion). 
Mastostethus hieroglyphicus (p. 23). 
To the locality Mexico, add :—Etla, Oaxaca (Sal/é), Morelia in Michoacan (Hége), 
Cuernavaca (H. H. Smith). 
Mastostethus novem-maculatus (p. 23). 
To the locality Mexico, add:—Cordova, Panistlahuaca, Vera Cruz, Cuernavaca, 
Tehuantepec (Sallé), Oaxaca (coll. Jacoby). 
23. Mastostethus modestus. (Tab. XXXVI. fig. 13.) 
Black; the head punctured near the eyes; thorax with afew very fine punctures; elytra pale brownish, 
sparingly pubescent and strongly punctured, the base and a sublateral longitudinal narrow stripe on each 
black. 
Length 44 lines. 
Head black, rather strongly punctured near the eyes; the anterior margin of the clypeus and that of the 
labrum fulvous; antenne scarcely extending to the base of the thorax, entirely black; thorax twice as 
broad as long, the sides slightly rounded before the middle, a transverse groove near the anterior margin, 
the latter rather closely punctured, the disc with a few very fine punctures; scutellum black, punctured, 
and with some fulvous hairs ; elytra depressed, rather elongate and narrowed posteriorly, the basal margin 
narrowly black, the black deeply indented in front of the shoulders, and connected with the narrow 
longitudinal black stripe, this latter being placed close to the lateral margin, and abbreviated just before 
the apex; underside and legs entirely black, clothed with fulvous pubescence. 
Hab. Mextco (Sallé, ex coll. Sturm). 
A single specimen, labelled “ Megalopus modestus,” is contained in the Sallé col- 
lection. 
24. Mastostethus panamensis. (Tab. XXXVI. figg. 9, 10.) 
Depressed, narrowed posteriorly, flavous, the base of the head, the antenne, the disc of the thorax, and the 
tibie, black ; elytra finely punctured, black, the basal margin obliquely flavous. 
Var. Elytra with the apex, as well as the base, flavous. 
Length 34-4 lines. 
Head black to the insertion of the antennz, the lower portion flavous, the space near the eyes closely punc- 
tured, the indented portion of the eyes obscure testaceous ; antenne black, the lower four joints shining, 
the rest opaque and transversely flattened ; thorax with the sides straight, narrowed in front, the surface 
with a few minute punctures, the sides flavous, the disc occupied by a transverse black band, which is 
rather deeply indented at the sides; scutellum black ; elytra depressed, finely and rather closely pune- 
tured, with an obsolete oblique depression below the base, black, the depression (in the shape of a narrow 
transverse band) flavous ; underside and femora flavous, the tibiz black, the two anterior pairs strongly 
curved, the tarsi black. 
Hab. Panama, Bugaba, Volcan de Chiriqui (Champion). 
M. panamensis seems to be somewhat allied in coloration to the South-American 
