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462

(1837-1884)
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_462

Caput præter collum circuitus manifeste orbiculati, supra
et infra æqualiter levius convexum, lenticulare, infra profunde
canaliculatum, basi pedunculatum, collo scilicet tenui, maxime
constricto. Anguli frontales sulco profundo, acuto definiti,
in obliquum ascendentes, convexi, rotundati, incisura obtusa
a clypeo utrinque separati. Clypeus impressione transversa
definitus, angulos frontales superans, convexus, parte antica
quadridentata: dentes porrecti, nonnihil declives, validi, conici,
duplo longiores quam crassiores, incisuris acutis discreti,
ar-cuatim dispositi, intermedii lateralibus dimidio majores. Sulci
frontales leviusculi, medio dilatati; pars antica epistomatis in
aream semicirculatam leviter elevata. Tempora æquata,
deorsum globosa. Ilypostoma triangulum, profunde immersum,
planiusculum, dimidiam capitis partern inter mentum et collum
manifeste superans longitudine. Collum toto ambitu acute
detinitum, duplo et tertia parte latius quam longius, capite
quintuplo brevius eoque duplo angustius. Membrana
articu-laria colli scutis duobus minutis, coriaceis superne tecta.

Ocelli radiculæ antennariæ satis vicini, magni, rotundati,
globose eminentes, appropinquantes, in series binas deorsum
declives dispositi, quaterni capiti prono, bini supino
con-spicui; series posterior recurva, ocellis minoribus.

Antennæ mandibulas longitudine æquantes, validiores,
setis ordinariis productis; articuli terni priores sensim paulo
graciliores, primus clavate cylindricus, duplo et dimidio
longior quam crassior, sesqui longior secundo, secundus obconicus,
tertius clavatus, longitudine primi, quartus longitudine secundi,
gracillimus.

Mandibulæ latitudine antica capitis tertia parte breviores,
longiores quam latiores pius triplo, robustæ, falcatæ, supra
depressæ, infra convexæ, ante retinaculum sensim acuminatæ,
acie explanata, oblique ascendente; retinaculum longe infra
medium situm, maximum, apice mandibulæ latius, conicum,
incurvum, supra depressum; penicillus nullus.

Stipites maxillares mandibulis pius quam tertia parte
breviores, validiores, longiores quam latiores pius duplo,
de-presse cylindrici, recti, supra serie armati spinarum gracilium,

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