184 
Sv0ben er noget kortere end Skaftet og sammensat af 8 
Led. Bisvoben er liden, koniskt tilspidset og bestaaende 
af 2 Led, hvoraf dot sidste er sserdeles lidet (se Fig. 3 a). 
2det Par Folere er noget Isengere end lste Par og 
af en lignende spinkel Form. Af Skaftets Led er dot 
naestsidste laengst. Svoben er neppe halvt saa lang som 
Skaftet og sammensat af circa 8 Led. 
Overlaeben (Fig. 3 b) er meget stor og noget hjelm- 
formig samt staerkt incrusteret, med den nedre Del noget 
indknebet og i Enden nsesten tvsert afkuttet. 
Kindbakkerne (Fig. 3 c — d) er af en meget eiendom- 
melig og usffidvanlig compakt Bygniitg. Formen er uregel- 
imessig qvadratisk, med Tyggeranden fuldkommen glut og 
ubevsebnet, skjondt en jevn Indbugtning i Midten antyder 
de 2 sffidvanlige Partier, et forms te og et bagerste (Tygge- 
knuden). Fra den indre Flade af Kindbakken udgaar en 
sinal tungeformig Fortsats, der rimeligvis tjener til Faeste 
for Abductormusklerne. Palpen er meget tynd, nsesten 
bprsteformig, men bestaar af de smdvanlige 3 Led. 
lste Par Kj fever (Fig. 3 e) bar den egentlige Tyggelap 
indad stserkt fremspiingende og paa den aflcuttede Ende 
besat med talrige tynde Torner. Basalpladen er naesten 
halvcirkelformig og forsvnet med 8 stserke Fjmrborster. 
Palpen er forholdsvis tynd, med sidste Led noget buet og 
neppe udvidet mod Enden. 
2det Par Kjmver (Fig. 3 /) har den indre Lap baade 
Isengere og bredere end den ydre, der kun i Spidsen er 
forsynet med Burster. 
Kjaevefodderne (Fig. 3 g) udmasrker sig ved den ussed- 
vanlig standee Udvilding af den indre Tyggelap, der er af 
oval Form, staerkt incrusteret og langs sin noget buede 
indre Kant bevaebnet med en Rad af 9 sterdeles grove, kam- 
formigt ordnede T sender. Palpen er tynd og forlamget, med 
sidste Led naesten li invert og Endekloen ganske kort. 
De 2 forreste Fodpar (Fig. 3 h) er indbyrdes af ens 
Udseende og meget svagt byggede, med Haanden usaedvanlig 
liden, medens det foregaaende Led (Carpus) er stferkt for- 
benget og i sin nedre Kant besat med en dobbelt Rad af 
tildels cilierede Borster. 
De 2 felgende Fodpar er ligeledes usaedvanlig svage. 
Derimod er de 3 bagerste Par- forholdsvis kraftigt udviklede 
og ogsaa rigeligere borstebesatte. De tiltager successivt i 
Lamgde bagtil og har Hofteleddet pladeformigt udvidet og 
i den bagre Kant* tart saugtakket. Dette Led tiltager lige- 
ledes i Storrelse i samme Forhold, saa at det paa sidste 
Par er over dobbelt saa stort som paa 5te. Af de pvrige 
Led er det sidste lfengst og meget tyndt, linesert. Ende- 
kloen er forholdsvis kort. 
the 2 succeeding ones equal' in length. The flagellum is 
somewhat shorter than the peduncle, and composed of 8 
articulations. The secondary flagellum is small, conically 
pointed, and composed of 2 articulations, — the latter ex- 
ceedingly small (see fig. 3 a). 
The 2nd pair of antennse are somewhat longer than 
the 1st, and of a similar slender form. Of the joints of 
the peduncle, the penultimate is longest. The flagellum 
attains scarcely half the length of the peduncle, and has 
about 8 articulations. 
The labrum (fig. 3 b) is very large and somewhat 
galeate in form, as also thickly incrusted, with the lower 
part slightly instricted and abruptly truncate at the ex- 
tremity. 
The mandibles (figs. 3 c — d ) exhibit a very peculiar 
and remarkably compact structure. Their form is irregular- 
quadrate, with the cutting edge perfectly smooth and un- 
armed, though a uniform emargination in the* middle indi- 
cates the 2 commonly observed portions, an anterior and 
a posterior (the molar protuberance). From the inner sur- 
face of the mandible, juts forth a slender linguiform pro- 
jection, serving probably as a means of attachment for the 
abductor muscles. The palp is very slender, well-nigh seti- 
form, but as usual composed of 3 articulations. 
The 1st pair of maxilla) (fig. 3 e ) have the true-mas- 
ticatory lobe strongly projecting inwards, and beset at the 
truncate extremity with numerous slender spines. The basal 
plate is well-nigh semicircular in form and tarnished with 
8 strong plumous bristles. The palp is comparatively slender, 
with the last articulation somewhat arched and but very 
little, if at all, dilated at the extremity. 
The 2nd pair of maxilla) (fig. 3 f) have the inner 
lobe both longer and broader than the outer, which at the 
point only is furnished with bristles. 
The maxillipeds (fig. 3 g) are characterized by the 
remarkably powerful development of the inner masticatory 
lobe, which is oval in form, thickly incrusted, and armed 
along its inner, somewhat arcuate margin with a row of 9 
exceedingly coarse, in arrangement pectinate, teeth. The 
palp is slender and elongate, with the last articulation al- 
most linear and the terminal claw quite short. . 
The 2 anterior pairs of legs (fig. 3 h) are uniform 
in appearance and very feeble in structure, with the hand 
remarkably small, whereas the preceding articulation (carpus) 
is greatly elongated, and beset along the lower margin with 
a double series of partly ciliated bristles. 
The 2 succeeding pairs of legs are likewise remarkably 
teeble. On the other hand, the 3 posterior pairs are com- 
paratively powerful in development and more abundantly 
furnished with bristles. They increase successively in length 
posteriorly, and have the basal joint lamelliform-dilated, as 
also closely serrate along the posterior margin. This joint 
likewise increases in the same proportion, so that, on the 
last pair, it is more than twice as large as on the 5th. Of 
the remaining joints, the last is the longest, very slender 
and linear. Terminal claw comparatively short. 
