Dr. Arzeniws's Obfervations on the Genus Paufus a7 
Paufus lineatus, capite collo cylindrico a capite (thorace) fe- 
parato ; elytra linearia, linea sin, medio’ lata fufca, Herbft. Syft. 
Infect. Coleopt. P. 4e ps 1025" Tab. 39 fige7./a. b, 
Cerocoma lineata, antennis biarticulatis;  clava elongata integra, 
fufca linea nigra, Fabr, Ent. Syf. Tom. i, P. 2. p- 82. sg. 
Habitat in Capite Bone Speis, d odd a 
2 Gerocoma .ruficollis, antennis , biarticulatis : clava elongata, integra, 
nigra thorace elytrorumque ftriga ferrugineis, Fabr. Ent. Sy/, 
Tom. i. P. 2. p. 83.* 
Habitat ------ Dom. Lund. 
Before I conclude, I muft recommend to Gentlemen who may 
have an opportunity of feeing P. microcephalus and P. /pherocerus alive, 
to inveftigate their nature and metamorphofes, to examine carefully 
their inftruments for feeding, and to enquire into the interior ftruc- 
‘ture of the upper-joints, or the clave of their antenna, as well as 
_ into the peculiar quality of giving light, which the balls of P. J/pha- 
rocerus feem to poflefs, &c. &c. ee 
EXPLANATION orf Tas. XXIL 
1Of 
Pausus micracephalus, 
Fig. T. the natural /fize.) > - 
Fig. 2. magnified, feen from above. . 
aa. the four tubercles on the vertex of each-of the clayx 
or upper-joints of the antennz, % 
6, the hooks of the clav#, with their interior knob. 
- ¢ the pedicles of the fame, with their balls at the bate. 
d. the lower joints of the antennz. TIe8 
« Vor. IV. Nn ee. the 
