8 MONOGRAPH OF THE 
Sus-Genus IIT.— ARTHROPTERUS, MacLeay. 
Caput thorace haud augustius: thorax subquadratus antice paullo latior. Antennz sublatz 
lateribus haud serratis articulo ultimo mediocre. Elytra angusta abdomine breviora: 
tibie apice bicalearate angulo opposito acuto: scutellum minutum : tarsi intra tibiarum 
apices haud contractiles. 
‘Species I. (V.)—Cerapterus (Arthropterus) MacLeaii. (Plate 50, fig. 4.) ©. rufo- 
brunneus antennarum lateribus haud serratis; thorace subconvexo postice angustiore angulis 
anticis rotundatis posticis acutis disco in medio vix canaliculato ; elytris oblongo-quadratis ; 
pedibus rufo-brunneis. Long. corp. lin. 43. 
Habitat in Nova Hollandia. In Mus. D. Macheay. 
Syn.—Cerapterus MacLeaii, Donovan, Ins. of New Holland, Plate 3. MacLeay, op. 
cit. pl. 4, fig. inf. dext. Westwood. Linn. Trans. 16, p. 672, 18, p. 384, and 
Ent. Mag. 5, p, 503. 
Mr. Francillon’s unique specimen of this species is now in Mr. 
Macleay’s possession, from whose figure in the work above quoted 
mine is copied. 
Species II. (VI.)—Cerapterus (Arthropterus) Hopii. (Plate 50. fig. 5, and details.) C. 
piceus punctatus nitidus setosus, elytris brunneo-piceis, antennis pedibusque nigrican- 
tibus prothorace ovali postice truncato medio leviter canaliculato, antennarum lateribus 
subserratis. Long. corp. lin, 44—5. Habitat in Nova Hollandia. Port Philip. Mus. 
D. Hope and Parry. 
Several specimens of this species have been received by the Rev. 
F. W. Hope, from New Holland; namely, one from Mr. W.S. 
Macleay, who has suggested the specific name which I have adopted 
above; and others, from Port Philip: the latter captured under 
bark, and beneath dried cow-dung. 
Fig. 5 a represents the head from the front, and 5 b sideways, 
* being the labium, + the mandibles, and o the maxillary palpi; 
the labial palpi, as seen in these figures, are of large size, and very 
securiform. 5 c is one of the mandibles highly magnified; 5 d one 
of the maxille, also highly magnified, with the basal portions sepa- 
rately indicated for more easy comparison with the figures to appear 
in the subsequent plates of this monograph; 5 e represents the 
labium and basal joints of the labial palpi as seen from the outside 
of the mouth, the former of small size, and scarcely extended beyond 
the extremity of the basal joint; in 5 f(as seen within the mouth) 
the two basal joints are seen to be soldered together, forming the 
inside of the labium ; 5g represents the mentum, which in this spe- 
cies forms, with the two lateral pieces, a kind of collar, enclosing 
the labium and base of the labial palpi; 5 4 represents one of the 
hind feet; and 57 a fore-foot: all having two apical spines, and 
the tarsi, especially in the hind feet, clearly seen to be 5-jomted. 
