READING PUBLIC MUSEUM AND ART GALLERY

26 'l'HE TJllBE ONCIDEBINI
Allotype.-Female j topotypic ; [U.S.N.M.].
Paratypes.-5 males, 5 females; Horqueta, Paraguay, January·
April, 1934; (A. Schultze) ; [L. Lacey].
Hypsiomn dejeanii Thomson
PLATE II, FIGURE 4.
HypsiClma afJinis Dejean, Cat., 1837, p. 369. [nom. nud.] .
Hyprioma dejeanii Thomson, Physis, u, 1868, p. 47.
Distinguished from H. gibbera in hnving the humeri broadly
rounded at angle, not tubercled; elytl'R with basal gibbosities less
elevated, with a single row of granules along its crest; antennae
with annulation narrow, less conspicllous, not covering more than
basal third of segments j pl'ocoxae uncnte in male ; elytra with
grayish-fulvous pubescence in streaks, not in maculae.
MALE. Elongnte-ovate, rather robust, convex; dark reddish-brown, covered
with hoory ilnd fulvous variegated pubescence, mottled with brown ; elytra largely
fulvous pubescent. Eyc very inconspicuously margined with pale fulvous. Pronotum
all each angle vitt.'l.te with hoary or pale fulvous pubescence, the basal
vittae brood, curving medially ncar middle nnd ascending to tubercle, the anterior
01]('5 strnight and narrow. Scutellum mostly brown, the edges thinly covered with
pale pubescence. Elytra. sometimes nt middle with an indistinct, irregular macula
of whitish, posteriorly somewhat mottled with dark brown, the mottling occasionally
forming more or less distinct, longitudina.l stripes. Body beneath dark reddishbrown,
irregul:uly covered with fulvous-gray pubescence, medially honry; abdomen
piceous, ne:lrly glabrous, laterally vittate with pale rosy-fulvous, the vitta broad,
very distinct and entire; the fifth sternite at middle dark brown pubescent. Legs
dark reddish-brown to fuseous, irreguln.r1y covered with brown and fulvous pubescence;
tarsal claw 'SeglIlents unicolorous. Antennae fuseous, dark brown pube­
Scent, variegated with fulvou!; bases of segments from fourth annulate with grayish.
He.'l.d above minutely, densely punctate, with a median impressed line from
occiput to epistorna; front minutely alutaceous and punctate, with a few, slightly
coarser punctures interspersed; gCllfIe vertical, minutely alutaceous and finely,
sparsely punctate; eye with lower lobe broadly oblong, distinctly shorter than
genal height; antennal tubercles subapproximate, robust, prominent, at apex with
a robust, acute tooth. Pronotum transvcrse, sides feebly arcuate, tapering to
npex, \manncd; apical and basal transverse sulci distinct, the latter coalescent
with the lateral ohl.ique ODes ; disk very finely and sparsely punctate on basal
hali, median tubercle basal, broad, prominent, each side of the disk is tumid, each
tumescence bearing two distinct tubercles. Scutellum with sides straight, strongly
oblique; apex retuse. Elytra with sides straight, narrowing to apices, which are
separately rounded; basal gibbosity prominent, elongate, its apex studded with a
row of coarse granulcs, another row of finer and more widely sp3ced granules at
its base near the suture, disk between gibbosity and humerus finely and sparsely
punctllte, punctures distinct to middle, thence becoming obsolete, posterior two-