COLEOPTEROUS FAMILY PAUSSID2&. 169 
Species 1.—Pavussus Microcepuatus, Linneus. 
(Plate 88, fig. 4.) 
Obscure niger vel nigro-piceus, elytris magis piceis vel rufo-piceis capite mutico, antennarum 
clava permagna, oblongo-sphzroidza ineequaliter elevata ad basin pedunculato, pedunculo 
angulato, latere externo 4-tuberculato, basi supra in uncum obtusum unidentatum producto, 
prothorace in medio profunde excavato parte antica strangulo distincto valde et transverse 
elevata, illius margine supero acuto in medio interrupto ; tibiis linearibus posticis paullo 
latioribus apice subangustioribus ; abdominis apice setis brevibus luteis utrinque marginato. 
Long. corp. lin. 33—4. 
Synon.—Paussus microcephalus, Linnzeus (Dahl. Dissert. Acad. Bige ins. p. 6, tab. ann. 
f. 6—10; Afzelius, Trans. Linn, Soc. vol. iv. tab. 22, f. 1—5.; Fabricius, Latreille, 
Gen. Crust., &c., tom. iii. p. 2; Westw. Trans. Linn. Soc. xvi. p. 631. 
Habitat in Africa occidentali tropicali. Mus. Banks, (Soc. Linn. Lond.) Macleay, Latreille, 
and Turner. (Individuum Linnzeanum in Museo Linnzeano hand nunc invenitur.) 
This is the species upon which the genus was originally estab- 
lished by Linnzeus. Its true locality was for a considerable period 
a matter of doubt, but it is now fully established as a native of 
tropical Western Africa, whence a specimen has been lately received 
by J. Turner, Esq., by whose kindness in placing it in my hands, 
I have been enabled to clear up several points in its structure, 
incorrectly described by A fzelius. 
The head is even on its upper surface, and its front margin is 
slightly emarginate ; the basal joint of the antennz is terminated 
above in pale rounded vesicular tubercles, and in a living state 
the part of the antenne bearing the four minute tubercles is 
upwards, and the curved peduncle downwards. The parts of the 
mouth are delineated in figures 4a—4e; 4a being one of the 
mandibles, showing the strong muscles whereby it is moved; 40 
one of the maxilla, seen from beneath, and 4c¢ the same with the 
base of the maxillary palpi, seen laterally, showing the absence of 
the analogue of the inner maxillary palpi; 4d the labium, with 
the base of the labial palpi arising from the basal scape, and having 
the anterior extremity terminated by three points; 4e the same 
seen laterally showing the lateral continuation of the scape, and 
the thickness of the labium; and 4 / the posterior tarsus and the 
extremity of the tibice destitute of calcaria. 
Species I].—Paussus Jousseriniur, Guér. 
«« Corps d’un brun foncé presque noir, avec ’abdomen et l’extrémité des élytres ferrugineux: téte 
petite, ayant un sillon longitudinal en avant et trois tubercules en forme de cornes sur le 
vertex ; antennes rugueuses avec le ler article grand presque carré, le second ou la massue 
subcylindrique, trois fois plus long que le premier, un peu rétréci au milieu, ayant en 
dedans et 2 la base un appendice tronqué, et, pres de l’extrémité, trois fortes dents aigues, 
corselet divisé en deux par un profond étranglement, ayant une profonde excavation 
longitudinale au milieu, et deux taches orangées produites par un fin duvet et placées de 
chaque coté et presque au fond de ’étranglement transversal; élytres lissés, avec une petite 
dent dilatée prés de l’extrémité, pattes rugueuses comme les antennes.’’ 
