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108
Øinene næsten trekantede, med mørkt Pigment, lste Par
Følere med sammentrykt, paa Midten noget udvidet Svobe.
2det Par Folere lige udstrakte næsten af Legemets Længde.
Farven blegt gulgraa. Længden 14"™.
Findesteder. Ståt. 18. 48, 124, 164, 200.
Bemærkninger. Nærværende Art kjendes fra vore
tre øvrige Arter: A. longicornis, affinis og pusillus, med
hvilke den i sin ydre Habitus idethele stemmer overens,
ved sit oventil jevnt og tæt knudrede Legeme, den
forholdsvis korte Bagkrop og det i Spidsen kun lidet
udtrukne Endesegment.
Beskrivelse af Hunnen. Legemet er (se PI. 9, Fig.
27 og 28) af den sædvanlige smale og langstrakte Form,
dog noget kortere end bos den typiske Art, A.
longicornis, idet den største Brede omtrent er lig ’/4 af Længden.
Integumenterne er ikke meget faste og paa hele den
dorsale Flade forsynede med talrige smaa afrundede
Knuder, men uden Haar eller Torner.
Hovedet er i sin forreste Del temmelig nedtrykt,
med Panderanden jevnt udrandet og Sidehjørnerne
udtrukne til tungeformige Lapper. I Midten af den øvre
Flade findes en større stump Forhoining, der ved en grund
Længdefure er delt i 2.
Af de frie Forkropssegmenter er de 3 forreste ganske
korte og oventil noget uregelmæssigt knudrede; det lste
har den forreste Band dybt udrandet for Hovedet og
Epi-mererne udtrukne i en fortilrettet noget tilspidset Flig.
4de Forkropssegment er særdeles stort, indtagende
mere end */3 af Totallængden, og viser fortil til hver Side
et knudeformigt Fremspring lige over det tilsvarende
Fodpars Insertion. Hele dets øvre Flade er jevnt og tæt
granuleret af smaa afrundede Tuberkler, medens dets nedre
Flade er glat og indtages af den mere eller mindre stærkt
udbuede Brystpose.
Det bagenfor liggende Parti af Legemet er ved en
meget bevægelig Articulation forbundet med dette Segment,
hvorfor denne Del kan boies saaledes, at den danner en
større eller mindre Vinkel med den øvrige Del af Legemet
(sml. Fig. 32), eller, naar, hvad der er det sædvanlige,
dette bagre Parti er lixeret, kan den forreste Del af
Legemet svinges pendelformigt frem og tilbage i Forhold til hint.
Den forreste Del af dette bagre Kropsparti indtages
af de 3 bagerste Forkropssegmenter, der oventil er adskilte
ved dybe, af en blød Hud dækkede Indsnoringer og derfor
ogsaa indbyrdes viser en temmelig fri Bevægelighed.
Deres øvre Side er noget pukkelformigt fremspringende og
furnished at the base with 2 triangular lateral projections.
Eyes well-nigh triangular, with a dark pigment. First
pair ol antennæ with a compressed, and, in the middle,
somewhat dilated flagellum. Second pair of antennæ, when
fully extended, almost as long as the body. Colour a
pale yellowish-grey. Length 14"™.
Locality. — Stats. 18, 48, 124, 164, 200.
Remarks. — The present species may be recognized
from our three other forms: — A. longicornis, A. affinis,
and A. pusillus, which exhibit on the whole a rather similar
habitus, by its having the body, above, uniformly rugged, the
abdomen comparatively short, and the terminal segment but
slightly produced.
Description of the Female. — The body (see PI. 9,
figs. 27, 28) of the usual slender and elongate form, though
somewhat shorter than in the typical species, A.
longicornis, the greatest breadth being about equal to one-fourth
of the length.
The integuments, which are not very firm, exhibit
over the whole of the dorsal surface numerous small
rounded prominences, but are without either hairs or
spines.
The head is a good deal depressed throughout its
anterior portion, with the frontal margin uniformly
emar-ginate and the lateral corners produced as linguiform lobes.
In the middle of the upper surface is seen a large obtuse
prominence, which, by a shallow longitudinal sulcus, is
divided in two.
Of the free segments, the 3 anterior ones are quite
short, and, above, somewhat irregularly rugged; the 1st
has the anterior border deeply emarginate, and the epimera
produced as anteriorly directed, somewhat acute lobules.
The 4th segment is exceedingly large, measuring
more than one-third of the total length, and exhibits
anteriorly, on either side, a tubereuliform projection, directly
above the points of insertion of the corresponding pairs of
legs. Its entire upper surface is uniformly and closely
granulous, with small rounded tubercles, while the lower
surface is smooth, and occupied by the more or less
prominently arched marsupium.
The succeeding portion of the body is connected, by
an exceedingly movable articulation, with this segment;
and the said part admits in consequence of being so bent
as to form a greater or lesser angle with the rest of the
body (see fig. 32), or when — which as a rule is the case —
this posterior part remains fixed, the whole anterior portion
admits of being swung pendulum-like backwards and forwards.
The anterior part of this posterior region of the
body is occupied by the 3 hindermost pedigerous sgments,
which, above, are separated one from the other by deep
instrictions, covered with a soft skill; and hence they
possess in their mutual relation very considerable mobility.
Their upper side projects in a somewhat hunched form,
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