40 Eev. A. Matthews's descriptions of 



EJijtra elongate-oblong, ratlicr wider and more than half as 

 long again as the head and thorax, A^ery convex, widest near 

 the middle, sides narrowly margined and very little rounded, 

 apex very broad and nearly straight. 



Abdomen with the pygidium alone exposed. 



Legs moderate, robust, piceovis, Avitli all the tibiaj strongly 

 dilated. 



Under pai ts castaneous, tha posterior coxa^ slightly laminate. 



Dijfivs from its congeners in its elongate convex form, shining 

 surbice, small size of the thorax, and abrupt truncation of the 

 ely t ra. 



Of this very distinct species, which forms an obvious connec- 

 tion l)etween the shining and the pubescent sjaecies of Actidiiiin, 

 a single example Avas found Ijy Mr. Blackburn on salt mud near 

 Honolulu. 



Ohs. 1 do not think that the truncated apex of the el) tra is 

 sullicient to separate this species from the genus of Actidimn. 

 The truncation itself is not a true truncation in the common 

 accept'ition of th? term, the elytra are not shortened, but merely 

 terminate in a straight apex. 



PTiLiODES, n. gen. 



Corpus elongatum depressum. 



Caput j)orrectum oculis magnis, antennis 11-articulatis arti- 

 culis duobiis l^asalibus pcrmagnis fere pai'ibus, sex seqiientihus 

 inter se paribus brevihus plus minusve liuearibus, nono pre- 

 cedentibus longiori parum incrassato, decimo magno valde 

 incrassato antlce truncato, undecimo magno valde incrassato 

 ovato sat obtuso, duobus his ultimis corona mediall setarum 

 perljrevium ornatis. 



Prcnotuin. \Awa minusve quadratum. 



Scutellum triangulare. 



Khjtva valde abbreviata, dimidium abdominis vix tcgentia. 



Aloi ami)la; sub elytris visa.*. 



Abdomen elongato-conicum longe exsertum. 



SitbtK.s — 



Caput ])arte gulari magna convexa, oculis pcrmagnis valde 

 promincntibus. 



