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Øienlober kunde paa de friskt indfangede Exemplarer hverken
Spor af Pigment eller lysbrydende Medier bemærkes.
lste Par Folere (Fig. 5) udspringer vidt adskilte fra
Hovedets forreste Sidehjørner umiddelbart foran Øienloherne
og er lige udstrakte omtrent af Hovedkjoldets Længde. 1 >e
bestaar, som hos Slægten Apseudes, af et üleddet Skaft og
2 Svaber. Skaftets lste Led er meget stort, indtagende
mere end Halvparten af Folernes Længde, pladeformigt.
uoget udvidet mod Enden og i den ydre buedé Kant
forsynet med 4 stærke Borster. 2det Led, der tilligemed
den øvrige Del af Foleren danner med Basalleddet en
vinkelformig Boining udad, er neppe mere end ’j.-, saalangt
og simpelt cylindriskt samt ved Enden i hver Kant forsynet
med nogle lange Borster. 3die Led endelig er særdeles
lidet, omtrent ligesaa bredt som langt og uden tydelige
Borster. Svøberne er af ulige Længde og ved Basis
forbundne med hinanden. Den ydre er længst og sammensat
af 4 Led, hvoraf de 2 midterste hvert foruden eu simpel
Børste bærer i den forreste Kant et finalt (gjennemsigtigt
Sandsvedhæng eller saakaldt Lugtepapille; dens sidste Led
ender med et Knippe af simple Borster. I )en indre Svøbe
er neppe mere end halvt saa lang som den ydre og bestaar
af 3 med simple Borster besatte Led.
2det Par Folere (Fig. 6) udspringer ligeledes vidt
adskilte lige under lste Par (se Fig. 3) og er omtrent af
samme Længde som disse, men meget spinklere. Man kan
paa dem adskille et 4-leddet Skaft og en enkelt kort Svøbe.
Skaftets lste Led er ganske kort. men forholdsvis bredt,
noget udvidet mod Enden eller næsten omvendt hjerteformigt.
2det Led er smalt og cylindriskt: 3die særdeles lidet og
rudimentært; 4de derimod meget langt og smalt samt
forsynet i begge Kanter med flere af de eiendommelige
pensel-formige saakaldte Horebørster. Svøben, der omtrent er af
samme Længde som Skaftets sidste Led, bestaar af 4 Led.
hvoraf de 3 yderste er forsynede med nogle simple Haarbørster.
Det for Slægteu Apseudes characteristiske bladformige
Vedhæng til disse Folere mangler her ganske og aldeles.
Imellem Følernes Insertion og Munddelene findes et
temmelig betydeligt, noget concaveret Mellemrum, der danner
Epistomet, hvilket fortil umiddelbart fortsætter sig i
Pandepladen (se Fig. 3).
Omtrent i Midten af Hovedsegmentets nedre Flade
sees (Fig. 3) en noget hjelmformig Forhøiuing, der danner
Basis for Overlæben. Denne har Formen af en afrundet
firkantet Lap, der ender med en i Midten svagt indbugtet
skarp Kant (se Fig 7 og 9).
Underlæben (Fig. 8) er temmelig stor, pladeformig og
bestaar af 2 svmetriske, i Midten sammenvoxede Lapper.
Til det ydre Hjørne af hver Lap er fæstet et lidet
bevægeligt indadrettet Led af konisk Fonn og besat med tine
Børster.
within the small ocular lobes, in the recently taken
specimens, neither traces of pigment nor any visual elements
whatsoever could be detected.
The 1st pair of antenna’ (fig. 5) spring, widely apart,
from the foremost lateral corners of the head, immediately
anterior to the ocular lobes, and, fully extended, about equal
the cephalic shield in length. They consist, as in the genus
Apseudes. of a three-jointed peduncle and 2 flagella. The
lst joint of the peduncle is very large, measuring more
than half the length of the antennæ. lamelliform. somewhat
dilated towards the extremity, and on the outer arcuate
margin armed with 4 strong bristles. The 2nd joint, which,
together with the remaining portion of the antenna, bends
outward, forming with the basal joint a distinct augle. is
scarcely more than one-third as long, and simple-cylindric,
as also, at the extremity, on either side furnished with a
few long bristles. Finally, the 3rd joint is exceedingly
small, about as long as broad, and without distinctly
developed bristles. The flagella are unequal in length and
at the base connected together. The outer flagellum is
longest, and composed of 4 joints, of which the 2 median
have each, exclusive of a simple bristle on the anterior
margin, also a narrow, translucent sensory appendix, or. as
it is termed, olfactory papilla: its last joint terminates in a
fascicle of simple bristles. The inner Hagelluni is scarcely
more than half as long as the outer, and consists of 3 joints,
beset with simple bristles.
The 2nd pair of’ antennæ (Hg. 6) take their origin,
likewise widely apart, just under the 1st pair (see fig. 31,
and are about of the same length, but much more slender.
On these antennæ can be distinguished a four-jointed peduncle
and a single, short flagellum. The first joint of the peduncle
is quite short, but comparatively broad, somewhat expanded
towards the end, or almost inverted - cordiform; the 2nd
joint is slender and cylindric: the 3rd exceedingly small
aud rudimentary, the 4th, on the other hand, very long
and slender, as also furnished on both margins with several
of the peculiar scopiform. so-called auditory, bristles. The
flagellum. about of the same length as the last joint of the
peduncle, consists of 4 articulations, of which the 3
outermost are provided with a few simple bristles. The
sqnami-form appendix to these antennæ characteristic of the genus
Apseudes is entirely wanting.
Between the points of insertion tor the antennæ and
the oral appendages, occurs a comparatively extensive,
somewhat concave space, forming the epistome. which, anteriorly,
protends straight into the frontal plate (see fig. 3).
About in the middle of the lower surface of the cephalic
segment, is seen (fig. 3) a somewhat galeate prominence,
that forms the base of the labrum. The latter has the form
of a rounded quadrate lobe, terminating in the middle with
a faintly incurved sharp margin (see tigs. 7 and 9).
The labium (fig. 8) is comparatively large, lamelliform,
and consists of 2 symmetrical lobes, connate in the middle.
To the outer corner of each lobe, is attached a small
movable, inward-directed joint, of conical form, and beset with
delicate bristles.
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