MORDELLA. 283. 
23. Mordella chevrolati. (Tab. XII. figg. 10,3; 10a, antenna, 3.) 
Comparatively short, black, the punctuation of the upper surface very dense and granular; the head with a 
large broad-ovate brown-pubescent patch in the middle (extending to the base and apex), the sides with 
silvery-white pubescence ; the prothorax with the sides and a triangular mark on either side of the 
middle at the base silvery-white-pubescent, the pubescence between and just in front of these marks 
brownish-black, for the rest golden- or fulvous-brown ; the scutellum with blackish-brown pubescence ; 
the elytra brown-pubescent, each with a very large oblong patch of black or blackish-brown pubescence 
on the disc extending from the base to the middle (not reaching the suture or lateral margin and narrow- 
ing behind) and enclosing two oblong, slightly oblique, silvery-white-pubescent spots; the pygidium 
silvery- or cinereo-pubescent, with a line of brown pubescence along the middle. Palpi obscure testaceous, 
the last joint of the maxillary pair broadly triangular in both sexes; antenne pitchy-brown with the basal 
joints testaceous, long and slender in both sexes, joints 3 and 4 thin, subequal, 5-11 broader but very 
little widened, much longer than broad, 5-10 decreasing in length, only feebly subserrate, 11 in the male 
considerably more than, in the female nearly, twice as long as 10; elytra rather short; beneath silvery- 
white-pubescent, the pubescence on the inner portion of the posterior coxe blackish-brown; pygidium 
rather short in both sexes, blunt at the tip, a little more than twice the length of the hypopygium; legs 
black, the anterior femora and tibis, the intermediate femora, and the tibial spurs testaceous, the inner 
posterior tibial spur very long. 
Length to end of the elytra 34-33%, to tip of the pygidium 33-43, millim.; breadth 1% millim. (¢ 9.) 
Hab. Mexico, Cordova (Sallé); Guatemata, Yzabal (Salié), Teleman and San Juan 
in Vera Paz (Champion). 
Four specimens, all from the Atlantic slope of Southern Mexico or Guatemala. 
This handsome species differs from all other JMordelle known to me in having the 
apical joint of the antenne more than twice the length of the tenth in the male, the 
antenne themselves being very slender. The two oblong silvery-pubescent spots on 
each elytron and the triangular basal mark on the thorax are placed in an oblique line 
and are almost equidistant from each other; these spots being surrounded by blackish 
pubescence are very conspicuous. Labelled with the preoccupied name of MM. albo- 
_ guttata, Chevr., in the Sallé collection. 
24, Mordella sexnotata. (Tab. XII. fig. 11.) 
Comparatively short, black, very densely and somewhat roughly punctured ; the head broadly brown-pubescent 
along the middle, the sides with silvery-white pubescence ; the prothorax with a line along either side of 
the middle extending for two-thirds of its length, widening behind and forming an elongate-triangular 
mark, the basal margin very narrowly, and the sides silvery-white-pubescent, for the rest clothed with 
blackish pubescence (this being nearly separated into three broad vitte by the white pubescence, and 
becoming browner in front); the scutellum blackish-pubescent ; the elytra with more than the apical 
half brown-pubescent, each with a very large blackish basal patch (extending laterally almost to the 
middle and reaching the suture at the base, but cut off obliquely behind from a little below the base), this 
patch almost enclosing three triangularly-placed silvery-white-pubescent spots—one, almost rounded, near 
the base, one, in the form of a short oblique stripe, below the shoulder, one, triangular, on the disc, below 
and more distant from the suture than the basal one,—the shoulders with a little brown pubescence ; 
the pygidium silvery-pubescent, with a line of brown pubescence along the middle. Head, eyes, and 
palpi as in M. chevrolati, the antennz formed as in the female of that species, but a little more slender ; 
beneath silvery-white-pubescent ; pygidium and legs much as in WM. chevrolati, the latter a little more 
slender. 
Length to end of the elytra 23, to tip of the pygidium 3, millim. ; breadth 1 millim. 
200 2 
