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567

(1837-1884)
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567

quam epistoma triplo brevior, sulcate immersa. Hypostoma
paulo latius quam longius, pone medium utrinque profunde
sinuatum, parte antica in transversum dilatata. Clypeus quam
epistoma triplo et dimidia parte brevior, trapezoideus,
trans-versus, duplo dimidiaque parte latior quam longior,
lævius-culus, nitidus. Labrum longitudinis ferme clypei, duplo latius
quam longius, late convexum, læviusculum, nitidum, in
longi-tudinem bis impressum, macula rotundata, fusca utrinque ad
basin notatum, margine priore rotundato, spisse breviter
barbato.

Ocelli quini, laterales, perminuti, rotundati, convexi,
in series binas, obliquas, deorsum spectantes, distantes
red-acti; ocelli seriei prioris terni, approximati, mox pone antennas
siti; ocelli seriei posterioris bini, distantes; ocellus inferior
seriei posterioris omnium altissimus, ocello superiori seriei
prioris oppositus.

Antennæ duas tertias partes labri explentes, conicæ;
articuli sensim deminuti, bini priores cylindrici, terminalis
conice cylindricus, quam articulus primus quadruplo tenuior;
appendices antennariæ articuli secundi conicæ, sat validæ,
quattuor quintas partes articuli terminalis explentes.

Mandibulæ quam caput duplo et dimidio breviores,
tri-quetræ, supra et infra convexæ, læviusculæ; dorsum exterius
late convexum, rugulose inæquatum. Pars scissoria sulco
obliquo, acuto delinita, tridens; dens superior brevis, latus,
bifidus, intermedius omnium maximus, terminalis, acutus,
inferior ejusdem ferme structuræ, at dimidia parte minor;
caverna oblonga, peralta, fundo in transversum ruguloso.

Maia maxillarum infra in longitudinem leviter excavate
impressa, apice in obliquum rotundate truncato, spisse breviter
pilosulo. Palpi maxillares conici, malam perpaulum
superantes; articuli membratim deminuti, bini pjiores obconici,
terminalis conicus. Mentum hypostomate duplo brevius,
tra-pezoideum, transversum, dimidio latius quam longius, ad basin
quam ad apicem duplo ferine latius. Hypopharynx caverna
profunda, elevate marginata, in fundo cornea, nigra, polita,
ad mandibulas accommodata utrinque excavata. Lingua palpos

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