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509

(1837-1884)
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_509

profundus, margine exteriore carinate elevato, usque ad
collum procedens; sulci denique duo breviores, post
conver-gentes, medio sæpius leviores, vertici impressi. Tempora
late rotundata, deorsum convexa, stria arcuata antica, ocellos
cunctos ambiente. Hypostoma dimidio capite tertia parte
bre-vius, levius immersum, triangulmn, carinate convexum. Collum
capite triplo brevius, temporibus paulo angustius, infra
occi-piti contiguum, supra impressione transversa, profunda, sinuosa
separatum, lateribus sulco arcuato discretum: sulcus apice
inferiore ad angulum rectum antrorsum flexus, deinde sub
tempora ad mandibulas usque procedens, margine interiore
in carinam acutam, extrorsum vergentem elevato.

Ocelli radiculæ antennariæ vicini, in series binas deorsum
declives dispositi, minuti, oblongi, inclinati, valde
appro-pinquantes, ut capiti supra inspecto tantum singuli, capiti
infra inspecto nulli appareant.

Antennæ longitudine ferme mandibularum ; articulus primus
clavate cylindricus, sextuplo fere longior quam crassior,
secundus obconicus, primo duplo ferme brevior, tertius clavatus,
tertia parte longior secundo, angulo exteriore apicis extra
appendicem prominente, ultimus gracilis, longitudine secundi.

Mandibulæ frontem complentes, triplo et dimidio
longiores quam latiores, ante retinaculum sensim acuminatæ et
valde extenuatæ, falcate incurvæ, supra levius carinatæ, aciem
versus plane declives, infra planiusculæ; retinaculum infra
medium situm, minutum, tenue, acutum; penicillus gracilis.

Stipites maxillares mandibulis dimidio breviores, depresse
cylindrici, quintuplo longiores quam latiores, leviter incurvi,
setosi, tenuius barbati. Maia exterior producta, articulum
priraum palporum nonnihil excedens; articulus primus
clavatus, longitudine articuli primi palporum sed eo dimidio
gracilior, secundus conice fusiformis, dimidio gracilior primo
eoque tertia parte brevior. Maia interior remota, gracilis,
conica, seta laterali, breviore. Palpi maxillares stipite
maxil-lari dimidia quartaque parte breviores eoque pius quam duplo
graciliores; articulus primus obconicus, triplo longior quam
crassior, secundus longitudine primi sed eo dimidio gracilior,
IV. 33

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