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C. ohscums M. Leay, 1. c. Long. 17 mill. Differs only from tlie last in being opaque, in having the 

 clypeus less reflexed, tlie thorax more punctate and less convex, the elytra shorter, and the form 

 generally much narrower and rather more convex. 



C. incormitus M. Leay, 1. c. 202. Long. 16 mm. Piceous-brown, snbnitid, subconvex, narrow. Head 

 densely pnnctate, with the clypens broad, slightly reflexed and almost truncate. Thorax coarsely 

 and densely pnnctate, with the median line broadly marked in the middle. Elytra dehiscent with 

 the subapical tuberosities strong, the costae scarcely elevated, and the variolous impressions in the 

 intervals of an elongate oval sliape. Underside of abdomen densely variolose-punctate. First joint 

 of antennae a little smaller than in the last two species. Base of mentnm deeply emarginate. Apex 

 of prosternnm snbtnmcate and ciliated. 



Gr. Oryctoderus Boisd. 

 Ce genre, si remarquable par la conformation des tarses anterieurs fortement epaissis chez 

 les d*, ne renferme encore que trois especes, propres a la Nouvelle-Guin6e et a la Nouvelle-Bretagne: 

 mais le Musee Godeffroy et la collection du C te de Mniszech me permettent d'y ajouter 3 especes 

 nonvelles. 



1. Oryctoderus latitarsis Boisd. Faun. Ocean. 160. JBradyscelis latitarsis Bnrm. Lac. Gen. Atlas, pl. 36, flg. 2. 



Long. 32 mm. Oblongo-ovatus, nigro-fuscus , nitidus, capite parce punctato, disco et antice leviter 

 impresso, margine antico fere truncato, reflexo et utrinque angulato, lateribus sat acute bimarginatis, 

 bilobatis; prothorace amplo, löngitudine parum latiore, lateribus arcuatis, angulis anticis paruia 

 productis; scutello laevi; elytris laevibus; pygidio densissime ac tenuiter punctato; pedibus val.de 

 crassis. — N lle Guinee, Dorei; Ternate; Menado. 



2. Oryctoderus obtusilobus. Long. 32 mm. Prsecedenti simillimus et structura capitis parum aberrans; sed 



paulo magis angustus, epitomate paulo magis reflexo, magis recte truncato, lateribus minus profunde 

 emarginatis, lobis magis obtusis, disco antice magis impresso, medio obsoletissime elevato, prothorace 

 breviore, angulis anticis paulo evidentioribus, posticis magis rotundatis, pygidio densissime minus 

 profunde punctato; $ capite utrinque obsolete bisinuato, antice vix minus recte truncato, disco 

 valde transversum punctato-plicato et medio obtusissime elevato. — (Coli. Mniszech.) 



3. Oryctoderus coronafus W. Bates, Proc. Zool. Soc. 1877, 152, pl. 14, flg. 5. Long. 31 — 38 mm. 



Oblongus, convexus, fusco-niger, nitidus capitis margine reflexo, antice truncato, magis elevato, et 

 utrinque rotundato, disco asperopunctato, medio unituberculato ; prothorace amplo, lateribus leviter 

 arcuato, laavi, anguste marginato, scutello elytrisque lasvibus, his ad suturam leviter impressis et 

 punctis minutissimis, distantibus, longitudinaliter vix impressis; pygidio valde convexo, densissime 

 sat tenuiter punctato, basi asperulo et fulvo-pubescente , pectore fulvo-villoso, lateribus dense ac 

 rugose punctato, metasterno medio lsevi; pedibus validis, femoribus anticis subtus rufo-setosis, et 

 ante apicem sinuatis, tibiis crassis, supra rufo-setosis, extus tridentatis, dente apicali acutiore, tarsis 

 valdo crassis; S simillima, paulo magis elongata, pygidio multo minore, tarsis anticis ceteris 

 similibus. — Mioko, Duke of York (Hübner). (M. G.) 



latitarsi valde affinis, sed capite antice evidentius truncato, lateribus A r ix sinuato, nec 

 emarginato, nec bilobato, disco band impresso, tuberculato, prothorace angulis anticis fere nullis, 

 posticis magis rotundatis, breviore, elytris politis valde distinctus. 



4. Oryctoderus Albcrtisii Gestro, Pet. Nouv. Ent. 1876. — 0. Gestroi Fairm. Ann. Ent. Fr. 1877, 219. — 



Long. 28 mm. Pracedentibus affinis, sed capite utrinque vix sensim sinuato, antice vix truncatulo, 

 et evidentius marginato, parce sat fortiter punctato, medio tuberculo obtuso munito, prothorace 



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