neio Species of IIisterida3. 347 



Coryphccus violaceus, sp. n. 



Oblongo-ovatus, subconvexus, violaceus, nitidus, haud yilosus ; 

 pedibus antennisque brunueis ; fronte in medio foveolata ; pro- 

 noto lateribus couspicue rugoso-punctato ad angulos lajvibus ; 

 el3tris striis humerali interna brevi arcuata, dorsalibus 1-3 

 integris ; pygidio lieviter punctulato ; prosterno bistriato. 



L. G mill. 



Oblong-oval, somewhat convex, violet-blue, shining, not 

 pilose ; legs and antennas obscurely brown, with the thighs 

 slightly bluish ; the head is foveolate on its vertex, with the 

 frontal stiia strong and complete and angulate at the eye.«, 

 surface finely punctulate except in the fovea and in two 

 anterior impressions, where the points are large ; the thorax, 

 median area very finely punctulate, with a broad lateral band 

 of " grater-like " pu!ictures, the punctures continue narrowly 

 behind the neck, but the anterior angles are free of points ; 

 the elytra, surface finely punctulate, striae, inner humeral 

 well-marked, short and bent, dorsal 1-3 complete and rather 

 strong, 4 traceable throughout but punctitbrm on the posterior 

 half, 5 obsolete, sutural wanting ; the pygidia are very finely 

 punctulate, with a few larger points in the middle of the base 

 of the propygidium ; the mesosteruum is obscurely marginate ; 

 the presternum, anterior lobe markedly sinuous on the ante- 

 rior^edge, bistriate, striae meeting anteriorly. 



Coryphceus Wallacei, Mars., the type of the genus, is from 

 Dorei, N. New Guinea, and it is also recorded by Marseul 

 from the Fly River ; it has five dorsal striaa complete and 

 the sutural stria is entire also, but not well marked at the 

 base. I have a fourth species of this genus, but the specimen 

 is not in good condition and the locality is not known to me. 



Nab. J\Iount Kina Balu, N. Borneo. 



Notodoma saturum, Lew. (PL X. fig. 9.) 



This species is fig-ured chiefly to show the metasternal 

 arched stria. N. hullatum, Mars., has no such stria, and in 

 N. nigrum, Lew., the only other dark-coloured species 

 known, the metasternal stria is represented by punctures 

 only. In Marseul's description of N. ghhatam, the type of 

 the genus, this important character is not noticed, nor is it 

 given in his figure of the species. 



LlSSOSTERNUS, gen. nov. 



Body ovate, convex ; head retractile; mandibles large and 

 incurved, acuniiuatc at the tips ; antenuie, scape dilated, 



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