FamILy—PTINID. 103 
FamMIty—PTINID&. 
Grnus—DIPLOCOTES. 
(Westw. Trans. Ent. Soc. Lond. 1869, part iv. August, p. 317.) 
Genus vel subgenus Ptinidarum; antenn crass, 11-articulate ; articulo decimo incrassato, et 3 antece- 
dentibus simul sumptis equante; ultimo parvo, fere rotundato; caput et prothorax omnino ut in Polyplocote ; 
elytra ovalia, globosa, punctato-striata, et setosa ; pedes satis elongati, simplices ; tarsis 5-articulatis, imermibus. 
This insect in its peculiar antenne connects Polyplocotes with Ptinus, especially with such species as Ptinus 
hololeucus, &e. 
Species 1—DIPLOCOTES HOWITTANUS. 
(Westw. loc. cit. p. 347.) 
Puate III, Fie. 6. 
D. totus castaneus, elytris magis fulvescentibus; setosus; antennarum articulis 2-9 moniliformibus ; 
pronoto striolato, pone medium impressione curvata ad incisionem lateralem utrinque extensa et striolis pro- 
fundioribus notata; elytris punctato-striatis. 
Long. corp. lin. 1. 
Habitat ; Gawler, Adelaide, Australia (Odewahn). In Mus. Hopeiano Oxoniz. 
Gxrnus—POLYPLOCOTES. 
(Westw. Trans. Ent. Soc. Lond. 1869, part iv. August, p. 316.) 
Genus Ectrephidem cum Ptinidis conjungens; corpus parvum, nitidum; pedibus longis, simplicibus, tarsis 
pentameris; caput pronum, ante antennas subrostratum, pone antennas utrinque constrictum; mandibul 
(fig. 4a) magne, conice, extus versus basin, incisione minuta; maxille (fig. 44), cum palpis, omnino ut in 
Ectrephide; antenne crass, 9-articulate, articulo octavo incrassato, ultimo parvo, truncato; prothorax mar- 
gine antico elevato, pone medium impressione profunda curvata, in incisionem Jateralem utrinque terminata ; 
elytra ovalia, basi sulcis profundis impressa ; pedes approximati, binis posticis inter se magis distantibus (fig. 4d, 
thorax infra visus). 
This interesting genus satisfactorily solves the question of the affinity of Ectrephes with the Ptinide. The 
mentum (fig. 4c) has the sides roundly dilated; the labium is oblong, terminated by two minute palpi. 
Species 1—POLYPLOCOTES LONGICOLLIS. 
: (Westw. loc. cit. p. 316.) 
Prats III, Fie. 4. 
P. niger, nitidus; antennis rugosis; prothorace oblongo, suleo transverso prope marginem anticum, disco 
punctato, pone medium semicirculariter impresso, striolato; elytris ad basin sulcis 6 profundis, dorso striato- 
punctatis. 
Long. corp. fere lin. 13. 
Habitat ; Swan River. In Mus. Hopeiano Oxoniz. 
Species 2—POLYPLOCOTES NITIDUS. 
(Westw. Trans. Ent. Soc. Lond. 1869, part iv. August, p. 317.) 
PuatE III, Fie. 5. 
P. piceo-niger, glaberrimus ; antennis crassioribus, levibus, nitidis, setosis; prothorace subquadrato, nitido, 
impunctato, impressione tenuissima postica notato; elytris glabris, impunctatis, basi vix sulcatis. 
Long. corp. lin. 1. 
Habitat; Swan River. In Mus. Hopeiano Oxoniz. 
