Lucanoid Goleoptera. 79 



emarginatis, spina acuta instructis. Antennce capita 

 mandibulisque paulo longiores ; articulis cylindricis. 

 Elytra elongata, disco subvelutinoso-opaco ; linea sinuata 

 utrinque, elevata et obsolete punctata, e spina humerali 

 fere ad medium descendente notata. Scutellum parvum, 

 grosse punctulatum, nitidum; angulis humeralis spina 

 acuta instructis; linea suturali, glabra, nitida. Corpus 

 infra nigrum ; pectore fortiter varioloso-punctato. Pedes 

 punctati ; tibiis omnino simplicibus. 



Long, prothoracis cum cap. et mand. lin. 5. Elytr. 

 lin. 6. 



Eah. — ^Ecuador. Mus. Parry. 



Not being in a position to avail myself of a comparison 

 between the two insects, viz., C. Beichii and C. BucMeyi, 

 it is impossible to point out the special differences which 

 I have no doubt exist in the females, as well as in the 

 males of the respective species, as already alluded to. 

 The only difference I have detected from reading Mr. 

 Thomson's description of C. Beichii, ? , is, that with 

 reference to the elytra, the author says, " humeris pro- 

 minulis, rotundatis," whilst in 0. BucMeyi, ? , the 

 humeral angle is acute, and furnished with a spine ; this 

 same difference has been pointed out as existing in the 

 males of the two species. 



In Mr. Hope's description of C. Beichii, the rich 

 opaque velvet appearance exhibited in the elytra is not 

 alluded to, neither is there any notice as to the character 

 of the humeral angle: the author describes the length of 

 the insect as being 15 lin., whilst the length of 

 G. BucMeyi, is only 11 lin. Mr. Thomson gives the 

 length of G. Beichii as 30 mill., being considerably in 

 excess of G. Beichii, Hope. The insects now described, 

 were found, as previously stated, by Mr. Buckley, at the 

 same time, and in the same position (the interior of 

 rotten wood), thus proving, as far as possible, their 

 conjugal affinity ; only one specimen of the female was 

 obtained. These interesting insects formed part of 

 a large and rich collection of Coleoptera that Mr. Buckley 

 has brought back from his recent scientific expedition 

 to Ecuador. His safe return will, I am sure, be hailed 

 with much satisfaction by the members of the Entomo- 

 logical Society. 



