60 PHYTOPHAGA.—SUPPLEMENT. 
Mastostethus championi (p. 21). 
To the locality given, add:—Mexico, Toxpam (Sallé); GuatemaLa, Sabo, San 
Gerénimo (Champion). 
Mastostethus stalii (p. 22). 
To the locality Mexico, add :—Cordova (Sallé). 
Mastostethus vicinus (p. 22). 
To the locality Mexico, add :—Toxpam (Sal/é). 
A single specimen from the above locality agrees well with Lacordaire’s description 
of this species. It has the antennz entirely black, and the elytral bands are slightly 
different in shape from those of I. rubricollis. | 
Mastostethus rogersi (p. 22). 
To the locality given, add:—Mexico (coll. Jacoby). 
Mastostethus chontalensis (p. 22). 
To the locality given, add :—Panama, Bugaba (Champion). 
The specimen since received from the State of Panama only differs from the 
Nicaraguan type in its smaller size, and in the larger black basal band of the elytra, 
the intermediate flavous band being thus reduced to half its size. 
15 (a). Mastostethus femoratus, (Tab. XXXVL. fig. 8.) 
Black, the sides of the thorax and the first abdominal segments flavous; elytra finely punctured, flavous, a 
narrow transverse band at the base, a broader one at the middle, a spot near the apex, and the suture at 
the same place, black. 
¢. The posterior femora robust and triangularly widened at the apex, and the posterior and intermediate 
tibie strongly curved. 
Length 43 lines. 
Of elongate, slightly convex and posteriorly narrowed shape; the head black, rather closely punctured between 
the eyes, deeply transversely grooved below the insertion of the antenne; the anterior margin of the 
clypeus and that of the labrum and the apical joint of the palpi fulvous; antennx black, the lower four 
joints shining, the rest opaque, dilated from the fifth joint; thorax nearly twice as broad as long, the 
posterior margin nearly straight, the anterior angles somewhat prominent and bounded by a groove 
within, the surface black, impunctate, the lateral margins narrowly flavous, a small black spot imme- 
diately below them ; scutellum black ; elytra finely and not closely punctured, the punctuation scarcely 
visible near the apex, the black basal band narrow, not extending to the lateral margin, its posterior 
margin uneven, the band at the middle broader, straight, and extending to the sides, the suture below 
this band black, the black not extending to the apex, and slightly widened behind, and a roundish spot 
at the sides near the apex, also black ; underside black, the first two abdominal segments flavous. 
Hab. Guatemata, Purula (Champion). 
M. femoratus almost exactly resembles in coloration WV. stalii, but is larger and more 
