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Summary. 
Several larvæ, pupæ and imagines of Paussus Kannegieteri Ws. 
were found by Dr. Hjalmar Jensen, Buitenzorg Java, in 1904 
in an antnest at Pangerango Java. The animals are in possession 
of the zoological museum in Copenhagen. The identity of the larvæ 
is quite sure because the pupa (Tab. II Fig. 3) with its charac- 
teristic antennæ (A Fig. 3) can be seen under the larval skin iu one 
of the specimens. The head of the pupa is mainly preformed in 
the prothorax of the larva. 
The larva (Tab. II Fig. 4) is typical carnivorous, eminently 
adapted to a myrmecophilous life, in several ways reminding us of 
the termitophilous larvæ of the Carabids : Glyptus sculptilis and 
Physocrotaphus ceylonicus. The mouthparts are biting; the mandible 
(Fig. 12) is remarkable in having a movable prostheca and no 
molar part. There is no labrum, but the frontale is in the front 
excavated and the palatina is strongly arched (Fig. 5). The max- 
illæ, labium and hypopharynx are forming together a fleshy body 
(Fig. 6), which can be lifted against the palatina and be conducted 
along the same, into which hypopharynx will fit precisely (Fig. 5). 
Hypopharynx has a soft skin in the front but is surrounded by a 
chitinised arch originating from the hindpart of the maxillæ. No 
yes. The thoracal and abdominal segments are exceedingly swollen 
in a quite unnatural manner, especially the seven first abdominal 
tergits. Each of the tergits consists of one median (im Fig. 4) and 
two distal parts (id Fig. 4). 
A pair of small spiracles is found in the mesothorax just 
before the legs and in the distal part of the first seven abdominal 
tergits. 
The mouth-piece (Fig. 9) of each spiracle is ringshaped and 
forms a cupola. The atrium is small but easily distinguishable 
by its long emergenses (.fjy Fig. 10), which are pointing for- 
wards. Like many other larvæ, which do not move very much, 
