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170 THE TRIBE ONCIDERINI
tinctly impressed; no distinct punctures preent. Scutellum transverse, sides only
feebly oblique, slightly arcuate; apex broad, slightly rounded. Elytra with sides
subparallel, apices separately rounded; disk with a scarcely perceptible gibbosity
toward base, entire basal two fifths coarsely, rather densely punctate, thence to apex
punctures much finer, obsolete; humeri fairly prominent, the anterior margin
straight, strongly oblique, angle with a large, rounded tubercle. Prosternum uni­
formly, rather strongly expanded froll apex to base; mesosternum elongate, ungu­
late each side, expanded gradually to apex, which is broadly emarginate, a median
distinct linear impression on basal half. Antennae slightly longer than body (from
seventh wanting) ; very sparsely fimbriate beneath to fifth segment; scape rather
elongate, clavate on apical half, not rugose at base; third segment one-half longer
than first, very feebly sinuous; fourth one and one-quarter times length of first,
rest shorter, gradually diminishing.
LENGTH 14.5 mm.; width 5.5 mm.
Type locality.-Guiana.
Distribution.-North-central South America.
BRAZIL : '2; Rio Caiary-Uappes, Amazonas, 1906; (H. Schmidt); [A.M.N.H.].
Hesychotypa crocea Dillon and Dillon, spec. nov.
PLATE VI, FIGunE 15.
Somewhat related to H. jaspidea but very distinct from it and
all other known species, in that the elytral ochraceous maculation
is much heavier, more extensive, leaving a very definite common
brown fascia just behind middle which is widest at suture; anten­
nae slender, elongate, feebly annulate; antennal horns slender,
acute, more elongate than in female jaspidea.
FEMALE. Elongate-ovate, rather robust, subcylindrical; dark r.eddish-brown or
piceous, densely pubescent. Head ochraccous pubescent, a short, wedge-shaped vitta
each side of median line on vertex and another behind antennal tubercles, brown;
front margined each side with denser ochraceous; genae each with two upright vittae
of hoary gray. Pronotum ochraceous, disk at middle of each side with a broad,
oblique brown vitta, medially three indistinct vittae of the same color, one at base,
anteriorly a longer one each side of middle, at extreme sides a curv.cd brown line
extending obliquely anteriorly and downward from above lateral tubercle to front
margin, all brown lines and vittae margined with pale gray. Scutellum with central
area golden brown, rest pale gray. Elytra each with two long vitt!\e ex tending from
basal margin where they are more or less coalescent, to middle, a curved vitta on
humerus, three short subequal vittae each side near middle, four or five short, ir­
regular vittae on each apex, and several small maculae near suture, all bright och­
mcous irregularly margined with pale gray, the interspaces and a broad, common
fascia behind middle, greatly expanded medially, golden brown. Body beneath and
legs reddish-brown, pale gray pubescent; sides of sterna coarsely maculate with
bright ochraceous; abdomen each side with two rows of bright ochraccous maculae,