READING PUBLIC MUSEUM AND ART GALLERY

156 THE TRIBE ONClDERINI
with indistinct ochraceous Iascia. Antennae with scupe piceous, remaining seg­
ments dark reddish-brown; scape dark brown pubescent, vnried with a small
nmount of ashy pubescence, an indistinct macula of ochraccotls at apex, remaining
segments beneath more or less ashy. above dark brown pubescent, very indistinctly
and narrowly annulate with asby pubescence at base.
Head above minutely aiutaceous, median impressed line from occiput to near
epistoma; front narrowed noticeably below eyes, surface minutely alutaceous with
moderately spaced, coarse, deep punctures; genae vertical, slightly wider at lower
portion, feebly pubescent, surface minutely alutaceous; eye with lower lobe ovate
subequal to gena in height; antennal tubercles dist.ant, witb short, robust, blunt
processes internally which arc directed forward and slightly inward. Pronoturn
very transverse; base only slightly wider than apex; sides feebly arcuate; a basal
nnd apical sulcus, basal one with a subfoveate depression each side and thence ob­
liquely over lateral tuberclcs ; disk medially with an elongate, moderately elevated
tubercle reaching little beyond middle, either side with a large, rounded tumid area;
btersl tubereles feeble, with a moderate, robust process curved feebly posteriorly,
slightly anterior to these a small, feebly elevated tumid area. Se,ltellum transverse;
sides feebly arcuate; apex broadly rounded, slightly llotehed medially. Elytrn
nearly parallel to behind middle, thence moderately rounded to apices, which :ue
separ.ttely rounded; each elytron at middle of base with a subtmnid area, entire
base with close set, very coarse, rounded punctufC3, behind middle there becoming
finer nnd less dense; humeri feebly prominent, nnterior margin arcuate, angle With a
large rounded tubercle. Prosternum broadly dilated behind middle; mesosternal
process angulate and only feebly emnrginate medially; fifth stcrnite about one-half
ngnin as long as fourth, emarginate apically. Procoxao promincnt; internally with
n. broad, well elevatcd, obtuse tubercle; profemora with sides nearly parallel on
basal two-thirds, then abnlptly clavate, coarsely transversely rugose on basal two­
thirds, thence to apex densely punctate; other femom gradually clavate. Antennne
about one and one-half times body length; scape nearly attaining middle of prono­
tum, robust, abruptJy clavate behind middle, at base with two deep grooves inter­
nally and externally; remainder of surface finely, densely punctate; third segment
slender, somewhat thickened basally, feebly sinuate, twice length of scape; fimbriate
on first, third, !lnd fourth, and slightly on fifth segments.
FEMALE. Slightly more robust; feebly wider between antennal tubercles, tu­
bercles only very feebly produced internally ; fift.h sternite at apex more deeply
emarginate and with a feeble triangular impression apically; profemora gradually
clavate, only very feebly rugose on basal quarter; procox!lC with a feeble, obtuse
tubercle; antennae little longer than body, scape less robust and not or only very
foobly grooved basally; tho ashy annulations at base of segments slightly wider
than in male.
LENGTH 14-15 mm.; width 5-5.5 mm.
Holotype.-Male; Province del Sara, Bolivia ; [C.M.].
AUotype.-Female j Santa Cruz, Sara Province, Bolivia; 1700
ft., January, 1923 ; (J. Steinbach) ; [A.N.S.P.].
Paratype.-Female ; Buena Vista, Sara Province, Bolivia,
March, 1915 ; [C.M.J.