ACTIDIUM. ^ . 377 



as head, deeply punctured, ^yith interstices feebly alutaceous, 

 with a large, kidney-shaped transverse impression near 

 base, sides strongly rounded, but not sinuate behind; elytra 

 elongate, not broader than thorax, feebly tuberculate, sides 

 very slightly curved, apices very obtuse, sutural angles 

 nearly right angles. L. -f^ 1. Rare. A. coarctatum, Hal. 

 B, Body bare, very shiny. 



Linear, elongate, convex. Deep black ; antennae and 

 legs dusky yellow; under-side black, with mouth, coxae 

 and apex of abdomen lighter. Head large, eyes not 

 prominent; thorax shorter than head, alutaceous, scarcely 

 tuberculate, sides very strongly rounded, somewhat sinuate 

 near posterior angles, broadly bordered; elytra elongate, 

 not broader than thorax, feebly asperate, sides nearly 

 straight, apices rounded, sutural angles obtuse. L. -j^ 1. 

 Very rare. A. concolor, Sharp. 



J^teiildiiini, 



A, Punctures on head and thorax large and strong. 



«. Thorax broadest in middle. 



Elongate oval, flat. Deep black ; under-side, antennae 

 and legs pitchy, mouth, coxae and apex of abdomen lighter. 

 Head rather small ; thorax with large, deep, simple punc- 

 tures placed in longitudinal rows, with central line im- 

 punctate, sides rounded but not strongly, broadly l)ordered ; 

 elytra with rows of large, deep punctures, half as long 

 again as together broad, widest near middle, slightly nar- 

 rowed behind. L. -^ 1. Not uncommon. 



1\ punctatum, Gyll. 

 6. Thorax Ijroadest near base. 



Ovate, strongly convex. Deep black; antennae and 

 legs pitchy or dusky yellow ; under-side black, with mouth 

 and coxae pitchy. Head rather large ; thorax with large 

 but scarcely deep punctures, placed confusedly, sides 

 strongly rounded, broadly bordered ; elytra with rows of 

 large punctures, not nnicli longer than together broad, 

 widest before middle, much narrowed behind. L. ^ — ^ 1. 

 Not uncommon . P. fuscicor n c, Er. 



B. Punctures on head and thorax small or feeble. 

 a. Thorax with four distmct depressions at base. 



I» All the four basal depressions on thorax large. 



