99 
111(11 de ban ogsaa straekkes mere ud til Siderne, saaledes 
* 01n P aa P ig. 1 fvemstillet. Man kan paa dem adskille et 
angt 5-leddet Skaft og en forholdsvis ganske kort mange* 
eddet Svobe. Skaftets 2 fqrste Led er meget korte og 
tykkt ‘- af noget uregelmmssig Form og adskilte fra liinanden 
' fd en skjsert snoet Sutur (se Fig. 6). De 3 ydre Led er 
ei i nio d stferkt forlamgede. cylindriske og tad kaarede samt 
aftager successivt i Tykkelse; nsestsidste or det lsengste af 
n 1 • Svaben (Fig. 7) er noget mere end lialvt saa lang 
S0U| Skaftets sidste Led. meget tynd og sanmiensat at 8 
t} deligt begrrendsede Led, livoraf det lste nassten er saa 
ail "t soni alle de ovrigo tilsammen. Langs den bagre Kant 
ei den forsynet med nogle yderst smaa simple Burster, der 
^ tsestede knippevis til sseregne Afsatser, bvoraf dev findes 
Paa lste Led, 2 paa 2det og 1 paa bvert at' de ovrige. 
et saerdeles Idle yderste Led bserer paa sin Bnde en kort 
_ °foi' m ig Torn, der egentlig er at betragte som et sserskilt 
Endeled. 
Munddelene er tiet sammentramgte paa Undersiden at 
°)edet og adskilte fra dettes forreste Band ved en bred 
■^Pistomialplade (se Fig. 3). 
Overlseben (Fig. 3 og 8) danner en fra Epistomial- 
ldaden udgaaende bevsegelig, bredt flrkantet Lap. hvis bagre 
ant er i Midten jevnt indbugtet og t< r et cilieret. 
f nderlseben (Fig. 8) er dybt tvekloftet, med Sidelap- 
peine afrundede og ucilierede. 
Kindbakkerne (Fig. 10) er af kraftig Bygning og bar 
lnod Munden vendte Ernie staerkt udvidet og vinkel- 
oi migt boiet. Selve Tyggeranden viser fortil 2 tandede 
P ortsatser og bagtil en' bred riflet Tyggeknude; mellem 
Jl disse Partier findes nogle faa stive tornformige Bor- 
Sk ' 1 1 Som ssedvanlig er der nogen Forskjel i Bevsebningen 
k ' la kt) ii'e og venstre Kindbakke; men denne Forskjel er 
ber kun lidet fremtra j dende. Af nogen Palpe findes 
111 tet Spor. 
lste Par Kjaever (Fig. 11) bar 2 fortilrettede og noget 
udadkruinmede Tyggelappe. livoraf den ydre er stserkest. 
(, n er noget sammentrykt fra Siderne og langs den indre 
Kand but cilieret; Enden er tvaert afskaaret og bewebnet 
!? ed s ta-rke, tilspidsede Torner, ordnede i Here Bader. 
Uen «>idre Tyggelap er betydelig baade kortere og smalere 
a d den ydre samt meget bevaegeligt forbundet med Basal- 
e ^ en ’ Den er som den ydre Tyggelap i den indre Kant 
but cilieret og bserer ved Spidsen 3 tykke cilierede Torner. 
2det Par Kjaever (Fig. 12) er forholdsvis smaa og 
SVagt byggede. Man adskiller en bred, sammentrykt eller 
“° get Pbadeformig Basaldel og et lidet til demies ydre Hjorne 
ds t(*t tvedelt Appendix. Den indre, staerkt buede Kant 
a . Dasaldelen er besat med en tset Bad af stive Burster og 
unci den egentlige Tvggerand. Det ovenomtalt ydieAp- 
1 uudix, der er beviegeligt forbundet med Basaldelen ga.n 
... 1 ~ bngerformige Lapper. bvoraf enliver bserer 3 giovt 
°i lerede Borster. Yed noiere UndersOgelse viser den ydre 
the other geniculate flexions; they admit however of being 
more fully extended toward the sides, as shown in fig. 1. 
On these antennae can be distinguished a long, five-jointed 
flagellum. The 2 first joints of the peduncle are exceed- 
ingly short and thick, somewhat irregular in form, and 
separated one from the other by an obliquely twisted suture 
(see fig. C). The 3 outer joints, diminishing successively 
in thickness, are, on the other hand, extremely elongate, 
cylindric, and thickly covered with hair; the penultimate 
joint is the longest of all. The flagellum (fig. 7) is a trifle 
more than half as long as the terminal joint of the peduncle, 
very slender, and composed oi 8 distinctly defined joints, 
of which the 1st well-nigh equals in length all the others 
taken together. Along the posterior edge, it is furnished 
with a few exceedingly small, simple bristles, attached in 
tufts to special, ledge-like projections, of which there are 10 
on the 1st joint, 2 on the 2nd, and 1 such on each of the rest. 
The extremely small outermost joint hears at the extremity 
a short unguiform spine, that, strictly, must be regarded 
as a separate terminal joint. 
The oral appendages are crowded together on the under 
side of the head, and separated from its anterior margin 
by a broad epistomial plate (see fig. 3). 
The labrum (figs. 3, 8) constitutes a broad, quadrang- 
ular lobe, proceeding from the epistomial plate, with the 
middle of its posterior margin uniformly emarginated and 
densely ciliated. 
The labium (fig. 9), deeply bifurcate, has the lateral 
lobes rounded, and without ciliation. 
The mandibles (fig. 10) are powerful in structure, with 
the extremity directed towards the mouth very considerably 
dilated, and bout to an angle. The cutting edge itself ex- 
hibits anteriorly 2 dentate projections, and posteriorly a 
broad, grooved molar protuberance; between these 2 parts 
occur a few stiff, spiniform bristles. As usual, some differ- 
ence in the armature is observed on the right and left 
mandibles; but this difference does not assume here a con- 
spicuous character. Of any palp, no trace can be detected. 
The 1 st pair of maxillae (fig. 1 1 ) have 2 anteriorly 
directed and somewhat incurving masticatory lobes, of which 
the outer one is the strongest. It is somewhat compressed 
from the sides, and fiuely ciliated along the inner margin; 
the extremity is abruptly truncate, and armed with strong, 
acute spines, arranged in divers rows. The inner mastica- 
tory lobe is considerably shorter and narrower than the 
outer, as also very movably connected with the basal part. 
It is. like the outer masticatory lobe, finely ciliated, and 
bears at the point 3 thick, ciliated spines. 
The 2nd pair of maxillae (fig. 12) are comparatively 
small and fragile in structure. On this pair, may be dis- 
tinguished a broad, compressed, or somewhat lamelliform 
bas'nl part, and a small bifurcate appendix attached to its 
outer corner. The inner, exceedingly arcuate border of 
the basal part, is furnished with a close-set series of stiff 
bristles, and constitutes the true masticatory margin. The 
aforementioned outer appendix, movably connected with 
th e basal part, branches out into 2 digitiform lobules, each 
13* 
