COLEOPTEROUS FAMILY PAUSSID#. 39 
Genus LEBIODERUS, Westw. (Plate 58, fig. 3) 
(Trans. Ent. Soc. vol. ii. p. 93.) 
Corpus subdepressum latiusculum. Caput thorace multo angustius postice in collum breve 
contractum, subtriangulare, anticé truncatum subemarginatum: angulis posticis pone 
oculos subacute productis; vertice linea impresso. Palpi maxillares (fig. 3a) maximi 
4-articulati, articulo mo. brevissimo ; 2ndo. maximo, interne sensim ad apicem in lobum 
magnum acutum producto, articulis duobus apicalibus multo minoribus subzqualibus, 
ultimo obovali apice in vesiculam parvam terminato. Mentum cum capite haud articu- 
jatum (3a) transversum, angulis anticis lateralibus acute productis denteque parvo 
breviori centrali instructum, palpi labiales 4-articulati, articulo 1mo. parvo crasso, 2ndo. 
brevi annuliformi, 3tio. longiori apice latiori; ultimo precedentis longitudine graciliori 
oblongo-ovato. Antenne maxime, ut videtur 7-articulate, articulo 1mo brevi ovali, 
2do. minutissimo, reliquis 5 latissimis massam ovatam subdepressam, disco marginibusque 
irregularibus, formantibus. Prothorax latus transversus, elytrorum fere latitudine, depressus, 
lateribus anticis rotundatis et in lobum utrinque productis, postice truncatis: portione postica 
prothoracis multo angustiori. Elytra lata oblongo-quadrata: humeris antice et oblique 
productis : angulis posticis tuberculo ordinario munitis. Ale 2. Pedes satis graciles 
compressi, tarsis ut videtur, 4-articulatis, articulis 3bus. basalibus sub«qualibus ; (in 
certo situ rudimentum articuli fere ad basin articuli ultimi apparet). Abdomen elytris 
-paullo longius apice acuminato, 4-annulatum. 
This genus appears to be intermediate between Platyrhopalus 
(with which it agrees in the comparative shortness of the terminal 
joint of the labial palpi and in the structure of the maxillary palpi,) 
and Pentaplatarthrus, with which it might be associated, on account 
of the number of joints in its antenne. 
It is, however, abundantly distinct from these and the other genera 
of the family ; whence I proposed a new genus for its reception, with 
a name alluding to the structure of the prothorax, which bears some 
resemblance to that of Lebia and Masoreus in the narrowness of its 
posterior part, although it will be evident that here it is the anterior 
lateral angles, and not the posterior part of the prothorax (as in 
those genera) which are dilated into lobes. Platyrhopalus aplustri- 
fer has the prothorax somewhat similar in form, but the antenne 
have the club not articulated, although with evident traces of con- 
strictions, and with the hind margin armed with spines. 
Species unica. LEBIODERUS GORI. 
(Plate 58, fig. 3.) 
Testaceus, tenuissime punctatus; elytris paullo saturatioribus, antennarum clava margine 
postico 4-dentata. 
Long. corp. lin. 33. 
Habitat in Insula Java. 
In Mus. Gory et Buquet, Parisiis, et nostr. Amicissime communicavit D. Westermann. 
Testaceus, supra subdepressus tenuissime punctatus nitidus. Caput porrectum subtriangulare, 
antice subemarginatum, angulis posticis pone oculos acutis et paullo productis, vertice linea 
impressa notato. Antenne pilose, clava quasi 5-articulata, articulo lmo. reliquis minori 
trausverso, tribus sequentibus latioribus, supra et subtus carina elevata instructis, ultimo 
obtriangulari apice rotundato: articulis 4 ultimis ad marginem posticum dente parvo et 
gracili armatis. Prothorax rufo-testaceus nitidus punctatissimus, in medio disci paullo 
convexus, linea parum impressa centrali notatus. Scutellum parvum triangulare. Elytra 
rufo-testacea nitidissima punctatissima, prothorace latiora, humeris antice et fere ad 
marginem posticum loborum prothoracis productis. Pedes tenues compressi concolores. 
This species is named in honour of M. Hippolyte Gory, one of 
the authors of the ‘‘ Monographie des Cétoines,” by whose kindness 
