68 
Oienlober kunde paa tie i'riskt. indfangede Exemplarer liverken 
Spot' af Pigment eller lysbrydende Medier bemaerkes. 
lste Par Folere (Fig. 5) udspringer vidt adskilte fra 
Bovedets forreste Sidehjorner umiddelbart f'oran 0ienloberne 
og er lige udstrakte omtrent af Hovedkjoldets Lasngde. De 
bestaar, soin bos Skegten Apseudes. af et 31eddet Ska it og 
2 Svober. Skaftets lste Led er meget stort, indtagende 
mere end Halvparten ai' Folernes Lamgdc, pladeformigt, 
noget udvidet mod Endeu og i den ydre buede Kant for- 
synet med 4 strerke Borster. 2det Led, der tilligemed 
den ovrige Del af Foleren danner med Basalleddet en 
vinkelformig Boining udad, er neppe mere end l j & saa langt 
og simpelt cylindriskt samt red Enden i liver Kant forsynet 
med nogle lange Borster. 3die Led endelig er saerdeles 
lidet, omtrent ligesaa bredt soin langt og uden tydelige 
Borster. Svoberne er af ulige- Lamgdc og ved Basis for- 
bundne med binanden. Den ydre er kengst og sammensat 
af 4 Led, hvoraf de 2 midterste kvert foruden en simpel 
Borste bserer i den forreste Kant et ,smalt (gjennemsigtigt 
Sandsvedhamg eller saakaldt Lngtepapille: dens sidste Led 
ender med et Knippe af simple Borster. Den indre Svobe 
er neppe mere end halvt saa lang soin den ydre og bestaar 
af 3 med simple Borster besatte Led. 
2det Par Folere (Fig. 6) udspringer ligeledes vidt ad- 
skilte lige under lste Par (se Fig. 3) og er omtrent af 
samme Laongde som disse, men meget spinklere. Man kan 
paa dem adskille et 4-leddet Skaft og en enkelt kort Svobe. 
Skaftets l ste Led er ganske kort, men forlioldsvis bredt, 
noget udvidet mod Enden eller nmsten omvondt kjerteformigt. 
2det Led er smalt og cylindriskt; 3dio smrdeles lidet og 
rudimentaert ; 4de derimod meget langt og smalt samt for- 
synet i beggeKanter med Here af de eiendommelige pensel- 
formige saakaldte Horeborster. Svoben, der omtrent er af 
samme Lsengde som Skaftets sidste Led. bestaar af 4 Led, 
hvoraf de 3 vderste er forsynede med nogle simple Haarborster. 
Det for Skegten Apseudes characteristiske bladformige Yed- 
hseng til disse Folere mangier her ganske og aldeles. 
Imellem Folernes Insertion og Munddelene iindes et 
teininclig betydeligt. noget concaveret Mellemrum. der danner 
Epistomet, hvilket fortil umiddelbart fortsfetter sig i Pande- 
pladen (se Fig. 3). 
Omtrent i Midten af Hovedsegmentets nedrc Flade 
sees (Fig. 3) en noget hjelmformig Forhoining, der danner 
Basis for Overkeben. Denne bar Formen af en afrundet 
firkantet Lap, der ender med en i Midten svagt indbugtet 
skarp Kant (se Fig 7 og 9). 
Underlaeben (Fig. 8) er temmelig stor, pladeformig og 
bestaar af 2 symetriske, i Midten sammenvoxede Lapper. 
Til det ydre Hjorne af hver Lap er kestet et lidet be- 
vsegeligt indadrettet Led af konisk Form og besat med fine 
Borster. 
within the small ocular lobes, in the recently taken speci- 
mens, neither traces of pigment nor any visual elements 
whatsoever could be detected. 
The 1st pair of antennae (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 
1st joint of the peduncle is very large, measuring more 
than half the length of the antenna;, 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 angle, is 
scarcely more than one-third as long, and simple-cvlindric, 
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 de- 
veloped 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 flagellum is scarcely 
more than half as long as the outer, and consists of 3 joints, 
beset with simple bristles. 
The 2nd pair of antennae (fig. 6) take their origin, 
likewise widely apart, just under the 1st pair (see fig. 3), 
and are about of the same length, but much more slender. 
On these antenna 1 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 
and 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 outer- 
most are provided with a few simple bristles. The squami- 
form appendix to these antennae characteristic of the genus 
Apseudes is entirely wanting. 
Between the points of insertion for the antennae and 
the oral appendages, occurs a comparatively extensive, some- 
what concave space, forming the epistome. which, anteriorly, 
protends straight into the frontal plate (see fig. 3). 
About in the middle of' the lower surface ol' 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 figs. 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 mov- 
able, inward-directed joint, of conical form, and beset with 
delicate bristles. 
