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LA W:RENE S. DILLON AND ELIZABETH S. DlLLON 97
tapering to apices, which are separately rounded; basal gibbosity feeble, disk on
basal half coarsely punlltate, more finely so apically; humeri prominent, more or
less projecting, angle obtusely tubercled, with a. short carina. running from tubercle
posteriorly to about basal quarter of elytra.. Presternum simple, widened from
middle to base; mesosternal process shor!., broad, wider apically, apex deeply, bi­
lobedly emarginate. Legs rather short; procoxae globose, dis!.inctly uncate in male;
temora clavate, robus!.; meta tibiae only feebly dilated in male; protnrsi dilated in
same sex. Antennae one and one-bali to one and two-thirds times as long as body
in male, slightly longer than body in female; scape gradually clavate, lower surfaco
not (or feebly) arcuate, nearly attaining middle of pronotum; third segment mod­
erntely sinuate, one-tbird longer t·han scapa; eleventh slightly longer than tenth
in male.
GENOTYPE.-Plerodia degenera Bates.
KEY TO SPECIES
Scape piceous; body form robust; elytra with humeri more strongly projecting,
disk at base more finely punctate ................ ............. oorniculata.
Seape dark brown; body form more slender; elytral humeri less projecting, disk
more coarsely punctate . . . _ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . degenera.
Furona degenera Bates
PLATE V, FIOURE 5.
Plerodia degenera Bates, BioI. Cntra.-Amer., Col., v, 1880, p. 123; loco cit., suppl.,
1885, p. 366.
MALE. Elongate-ovate, robust, elytra convex; black or fuscous, covered with
dark grayish-brown pubescence. Head with front dark brown. Pronotum each
side with an indistinct vitta of paler pubescence. Scutellum darker at middle.
Elytra with an indistinct, narrow, pale fulvou.s or ashy fascia extending from sides
behind humerus to suture at apical twofifths, then recurving laterally and covering
most of apical third as indistinct maculae, suture at base similarly ID./lculate. Body
beneath lind legs dark reddish-brown, covered with short, dull fulvous pubescence,
densely and finely mottled with dark brown ; abdomen each side with two rmys of
bright fulvous maculae, one--row indistinct, marginal, the other between margin and
middle, conspicuous, all series confined to basal four sternites; taml claw segment
not paler nor annulate bns..'1lly. Antennae fuscous, grayish·brown pubescent; scape
black, gray and brown pubescent.
Head minutely, densely punctate, a median impressed. line from occiput to
clypeus; front nearly paro.llel-sided, elongate, deeply concave between ani.ennru.
tubercles, minutely, densely alutaceous, below coarsely but very obsoletely punctate;
genae vertical, minutely, densely alutacoous and obsoletely coarsely punctate; eye
with lower lobe more or less oblong, narrower below, about twice genal height;
nntcnnnl tubercles robust, prominent, at apex with a short, acute tooth. Pronotum
slightly wider at base than long, tapering to apex, unarmed; apical transverse Bulcus
nearly obsolete, basal one distinct, straight, coalescent with the shallow oblique
ones; disk with a feetlc, median, elongate tubercle, each side strongly tumid, tumes-