36G MISCELLANEA ENTOMOLOGICA, 



punctato antice minime retuso medio leviter canaliculato 

 ad latei^a ufcrinque bifoveato, elytris leviter striato-punc- 

 tatis, tibiis anticis extus sex-dentatis. 

 Hab. Swear's Island. 

 This difiers from the last species in having the head punctured, 

 in having a tubercle on the forehead, in having the thorax thinly 

 punctured, not retuse, and lightly canaliculate in the middle, and 

 in having the usual number of stri» on the elytra. 



In a previous portion of this paper I described a number of 

 new species of Promecoderus and allied genera. Since then, I 

 have received from Peak Downs a very extraordinary looking 

 insect, evidently one of the Cnemacantliidce, but very distinct 

 from any of the genera of that group. From the massive character 

 of the presternum I propose for it the generic name 



Brithysternum. 

 Caput magnum longum subnutans. 

 Menhim profunde emarginatum, medio edentato, lobis later- 



alibiis magnis extrorsum rotund atis introrsum erectis. 

 Labium antice subrotundatum subtilissime emarginatum bise- 



tosum paraglossis adhserentibus haud longioribus. 

 Maxillce acutge arcuatee. 

 Palpi maxillares subcrassi articulo penultimo brevi, ultimo 



truncato. 

 Palpi lahiales sublongi crassi truncati. 

 Lahrwm magnum transversum truncatura. 

 Mandihaloe haud magnsB subarcuatse. 

 Antennce subsetiformes articulo prime crasso, tertio ceteris 



longiori. 

 Thorax elongatus. 

 Elytra subconvexa angusta. 

 Pedes graciles, femoribus anticis longis subarcuatis : intermediis 



subtus versus apicem calcaratis : posticis trochanteribus 



longis acuminatis, tibiis anticis arcuatis, tarsis anticis in 



mare triangularibus. 

 Prosternum latum retrorsum porrectum. 

 Corpus longum subcylindricum pedunculatum apterum. 



