of the Group Cerambyclnse. 27 



body, with the tliivd joint much longer than 

 the fourth. Prothorax with a broad, 

 smooth, excised space on each side. Elytra 

 truncate at the apex, dentate at the suture. 

 Antero-lateral proce.^s of metasternum very 

 feeble 12. P. maurltanxcm, Bu^. 



Antennfe a little longer than the body, 

 with the third joint not much longer than the 

 fourth. Eyes in the male almost contiguous 

 above. Prothorax with a narrower excised 

 smooth space on each side. Apices of elytra 

 subtruncate or almost rounded, and unarmed. 

 Antero-lateral process of metasternum dis- 

 tinct 1.3. P. demissu.^, PaaC. 



Antennae ( (5') ? Prothorax with a narrow 

 canaliculate excised space on each side, the 

 disk with two oblique impres.-ions, anteriorly 

 widely diverging. Apices of elytra subtrun- 

 cate, and unarmed. Pubescence with faint 

 vioire reflexions. Antero-lateral process of 

 metasternum distinct 14. P. arci/erux, sp. n. 



Antennae nearly half as long again as the 

 body, with the third and fourth joints 

 scarcely thickt-ned at the apex, the third 

 almost twice as long as the fourth. Pro- 

 thorax obtusely bituberculate on each side, 

 without excised smooth space. Apices of the 

 elytra truncate, dentate externally, briefly 

 spined at the suture. Prosterual process 

 somewhat strongly and obtusely tubercled 

 behind. Antero-lateral process of metaster- 

 num distinct 15. P. feinoreUus, Chevr. 



Pachydisms inculh/s, Gerst., probably belongs to this section. 



§ D. Of relatively shoiter and struter form 

 than the species of the preceding sec- 

 tions. Antennae in the male r.early 

 twice as long as the body, with a short 

 delicate fringe of hairs underneath ; with 

 the scape cicatrized, the cicatrice limited 

 by an inci uiplete carina. Elytra trun- 

 cate at the apex. Femora feebly carinate 

 oi: t ach side below. Prosterual process 

 f-ubtruncate behind. {Diorthus.) 



Pubescence less dense. Antennae with the 

 third joint much longer than the fourth .... 16. P. simplex, 'N^'hite. 



I'ubescence denser. Antennae with the 

 third joint but little longer than the fourth. . 17. P. vagtis, sp. n. 



Pachydissus hrevicornin^ sp. n. 

 Grisco dense pubcsccns ; antcniiis cojporc bnvioribus, articulis a 



