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LAWRENCE S. DILLON AN 0 ELIZABE'l'H S. DILLON 27
thirds of disk with two or three costae; humeri strongly elevated and projecting,
tbe anterior margin feebly arcuate, very feebly oblique, the angle broad and rounded,
the tubercle not elevated, continued as a carina along posterior margin but not onto
disk. Prosternum unarmed, fecbly expanded each side at middle into a broad, in­
distinct process. Procoxae slightly tumid behind, anteriorly armed witb a strong
uncus; the profemora robust, as broad ncar base as at apex, beneath finely, trans­
versely rugose, other femora clavate; metatibiae gradually and distincUy expanded
to apex. Fifth sternite half against 8S long as fourth, broadly emarginal.c at apex.
Antennae one and one-half times body length, shortly fimbriate beneath on four
proximal segments; scape robust, gradUAlly thickened, oapitate on apical half,
basal half almost entirely eoveroo. with coarse, transverse rugosities ; third segment
distinctly longer than first, biflexuose; rest gradually shorter; eleventh about
as long as tenth, with a recurved process at its tip.
FEMALE. Similar to male but antennal tubercles not dentnte at apex; pro­
coxae armed with only n small tubercle anteriorly; prafemorn. not robust basally
lind smooth beneath; metatibille unmodified; fifth sternite twice length of fourth,
apex narrow and slightly arcuate, at middle triangularly and deeply impressed;
antennae very little longer th:m body, scape quite slender and not rugose, eleventh
wit-hout a prOCe53 at tip.
LENGTH 16-18.5 mm.; width 7.5-8.5 mm.
Type locality.-Brazil.
Distribution.-Brazil.
BRAZIL: .J; Rio de Janeiro, October ; [C.M.J.
•
; S:lntarcm; [C.M.).
Hypsioma slcillbachi Dillon and DillonJ spec. nov.
PLATB II, FIGURE 5.
Somewhat related to H .. gibberaJ but has the pronotum entirely
hoary pubescent ; elytl'a with gibbosities less elevated, broad ; abdomen
entirely hoary, medially piceous, shining; alltennae with
third segment slenderer, more strongly sinuate.
FEMALF.. EIongatc-ovatc, robust, convex; fuscous, middle of pronotum and
humeri piceous, rest of clytra dark reddish-brown; thinly covered with rather
long pubescence, n.s follows : Head above nnd front brown or fulvous, toward the
sides of occiput variegated with hoary. Pronotum largely llOary, with n vitta of
denser pubescence above each hind :mgle, and on the anterior one.3, apicnlly variegated
with fulvOWl or brownish. Scutellum entirely hoary. El ytra golden-fulvous
basally, at least toward humeri, variegated with hoary, before apex ne:tr suture
an irregular white patch, surrounding wllieh are numerous points of tho same color;
sides entirely variegated with hoary. Body beneath and legs dark reddish-brown,
irregularly and thinly covered with hoary pubescence; abdomen fuscous, later!llly
broadly vittate with hoary, the vittne more or 1e53 denuded medially, on fifth
sternitc replaced by brownish pubescence; tarsal £lll\w segments not annulate.
Antennae dark reddish-brown, covered with short, fulvous or brown puhc:cence.