8 
MONOGRAPH OF THE 
Sub-Genus IIT.—AUTHROPTERUS, MacLeay. 
Caput thoraco liaud augustius : thorax subquadratus antic.e paullo latior. 
lateribus baud serratis articulo ultimo mediocre. Elytra angusta 
tibiae apice bicalcaratae angulo opposite acuto: sciitellum miniitum : 
apices baud contracliles. 
Antennae sublatse 
abdomine breviora: 
tarsi inira tibiarum 
Species I. (\,)--Cerapterns {Arthropterus) MacLeaii. (Plate 50, fig. 4.) C. rufo- 
brunneusantennanim lateribus baud serratis; tborace subconvexo postice angustiore anguhs 
anticis rotundatis posticis acutis disco in medio vix canaiiculato; elytris oblongo-quadratis; 
pedibus rufo-bninneis. Long. corp. lin. 4-^. 
Habitat in Nova Hollandia- In Mus. D. JSIacLeay. 
Syn._ Cerapterus MacLeaiii'Dono^v^i, Ins, of New Holland, Plate 
cit. pi. 4, fig. iuf. dext. Westwood. Linn. Trans. 16, p. 672, 18, p. 484, and 
Ent. Mag, 5, p. 503. 
Mr. Francillon s unique epecimen of this species is now in Mr. 
Macleay's possession, from whose figure in the work above quoted 
mine is copied. 
Species II. (Tl.) —Cerapterus {Arthropterus) Hopii. (Plate 50, fig. 5, and details.) C. 
piceus punefatus nitidus setosus, elytris brunneo-piceis, antennis pedibusque nigrican- 
tibus protborace ovali postice truncato medio leviter canaiiculato, antennarum lateribus 
subserratis. Iiong. corp. lin. 4^—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, f 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 niaxillse, 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 o/’(as seen within the mouth) 
the two basal joints are seen to be soldered together, forming the 
inside of the labium; 5 g represents the raentum, 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 h represents one of the 
hind feet; and 5 z a fore-foot; all having two apical spines, and 
the tarsi, especially in the hind feet, clearly seeu to be 5-jointed. 
