READING PUBLIC MUSEUM AND ART GALLERY

132 THE TRIBE ONCIDERINI
epistorna, strongly concave between antennal tubercles, minutely, densely alutaceous
and wit.h a row of modcrateized punctures each side and at middle; genae elongate,
vertical, mi nutely, densely alut-aceous, sometimes with a few punctures medially;
eye with lower lobe variable, elongate-ovate or oblong, rarely equalling gena. in
height, usually distinctly shorter; antennal tubercles robust, rather prominent, at
apex armed with a long, robust, subacute tooth which is curved laterally. Franotum
transverse, about one and one-third times as wide as long, sides feebly arcuate, nar­
rowed anteriorly, unarmed, or with a very feeble protuberance each side behind
middle; apical transverse sulcus obsolete, or distinct towards sides, basal one ir­
regular, nearly straight, usually well impressed, coalescent with lateral oblique ones;
disk with median tubercle elongate, oval, or subtriangular, variable in its promi­
nence, each side subglobosely tumid, each tumescence more or less bituberculate.
Scutellum transverse, sides oblique, straight, apex arcuate. Elytra gradually taper­
ing to apices, which are separately rounded; basal gibbosity rather feeble, oblique,
followed posteriorly by a broad, distinct, oblique impression, disk at base with rather
sparse, moderate-sized puncturcs, which are finer on apical half, attaining apex;
humeri somewhat projecting, anterior margin more or less arcuate, oblique, angle
wih a moderate-sized, obtuse tubercle. Prosternum simple, arrow, gradually
widened to base; mesosterna.! process broad, slightly longer than wide, its apex
arcuate, not notched medially. Procoxae globose, anteriorly with conical uncus, on
small specimens only feebly hooked; femora robust, clavate, profemora finely,
tr;lllsversely rugose on base of posterior face. Fifth sternite one and one-quarter
times the length of fourth, apex distinctly emarginate. Antennae one-fourth to
one-third longer than body, eighth or ninth segment attaining elytral apex, finely
fimbriate beneath on proximal four segments, very sparsely so thence to apex;
seape attaining middle of pronotum, gradually clavate from base to apcx, finely
punctate, not at all rugose; third segment one and one-half times length of first,
distinctly sinuous, feebly and gradually widened apically; fourth slightly longer
·than first, fifth and foHowing slightly shorter than scape ; eleventh slightly arcuate,
apically attenuate.
FEMALE. More robust than male; antennal tubercles feeble, unarmed or with
a short tooth at apex; proeoxae not uncate, with a broad, indistinct tubercle an­
teriorly; profemora not rugose; fifth sternite onc-half longer than fourth, apex bi­
lobedly emarginate, broadly, subtriangularly impressed at middle toward base; an­
tennae about as long as body, seape rather slender, clavate from before middle,
segments from fourth gradually shortened.
LENGTH 10.5-15 mm.; width 46 mm.
Holotype.-Male; Ransa Humboldt, Santa Catharina, Brazil,
November, 1939 ; (A. Maller) ; [L. Lacey].
Allotype.-Female; topotypic, February, 1941; [L. Lacey].
Paratypcs.-Male, three females ; topotypic, November-December.
Male; Mafra, Santa Catharina, February, 1935. Two females;
Cachoeirinha, Parana, Brazil, November. Female ; Faxina,
Sao Paulo, November, 1939. [All (A. Maller) in L. Lacey collection].
Female : San Bernardino, Paraguay ; (K. Fiebrig) j [U.S.
N.M.].