BY EDWARD NEWMAN. 



491 



Natural Order. — Cerambycites, Newman. 

 Genus. — Cacosceles, Newman. 

 Caput porrectum, prothorace manifeste longius, paullo angustius : 

 antennas 12-articulatae corpore vix breviores, versus apicem ped«- 

 tentim attenuantes, articulus 

 1"^. incrassatus,'' 2"% brevissi- 

 mus, 3"^ 2°. septies longior, 

 cseteri breviores, subsequales : 

 oculi magni, laterales, reni- 

 formes : mandibulse validae, 

 falcatse, porrectse, capite mani- 

 feste longiores, apice dextera 

 acuta, sinistra bifida : maxi- 

 palpi 4-articulati, articulus 1"% 

 brevis, 2"^ duplo longior, 3"% 

 2°. brevior, 4"% 3°. vix longior, 

 compressus, paullo dilatatus : 

 labipalpi 3-articulati, articulus 

 l"^ brevis, 2"'. quadruple lon- 

 gior, 3"'. 2°. brevior : prothorax 

 coraplanatus, longitudine fere 

 quadruple latior, lateribus 3- 

 dentatis, dente mediano acuto : scutellum semicirculare : elytra 

 prothorace vix latiora, quintuple longiora, abdomen tegentia, 

 versus apicem angustiora, apice nullo modo armata : tibiae supra 

 1-sulcatas infra apice 2-spinos3e ; niesotibias medio dilatatse infra 

 lanatae ; metatibiae ante medium compressae et dilatatae ; tarsi 

 omnes infra lanatae line^ mediana glabra : ungues simplices. 



Caco. CEdipus. Brunneo-iiiger ; palpis antennis pedibusque 

 piceis. Charac. essen. vid. supra. (Corp. long. 1*75 unc. 

 cum mandibulis 2*3 unc. ; lat. '7 unc. Vide Icon. Mag. 

 Nat) 



This extraordinary insect is somewhat larger than Prionus coriarius, 

 to vi'hich it may possibly be considered as allied ; it is also of a 

 somewhat darker colour, being nearly black,with the palpi, antennae, 

 and legs piceous : the head has a considerable prominence on 

 each side, just before the eyes ; on this prominence the antennai 

 are situated ; between the bases of these the head is depressed 

 and somewhat wrinkled transversely ; on the crown is a depressed 

 longitudinal polished line : the prothorax is rugose and uneven, 

 and intersected by a depressed median longitudinal polished line ; 



