IIOMALIUM. 329 



Elongate, flat. Black, sliiny ; elytra pitch-brown ; legs 

 and first five joints of antennae reildish-yellow. renulti- 

 mate five joints of latter very strongly transverse, almost 

 equal in bread tli ; ])unctuation of Lead irregular, rather 

 diffuse, that of elytra finely wrinkled; thorax rather closely 

 punctured, with indistinct central furrow ; depressions on 

 disc very shallow, anterior margin with two depressions. 

 L. 1 — 1^ 1. Kather common. H. planum, Payk. 



J5 a. Anterior margin of thorax without de- 

 pressions ; elytra brown. 



Narrower than ZT. j;/a?wwyi. Black, shiny; elytra brown; 

 antennae yellowish-red, bro^vll toward apex ; legs red. 

 Forehead scantily punctured, with an impressed line before 

 each ocelhim ; thorax transverse, sides somewdiat rounded 

 before middle, slightly narrowed toward base, disc finely 

 and not very closely punctured, scarcely channeled, very 

 finely alutaceous, anterior margin without depressions ; 

 elytra almost twice as long as thorax, very finely aluta- 

 ceous and scantily punctured ; abdomen indistinctly punc- 

 tured. L. scarcely 1 1. Eare. H. ijincti, Th. 



II. Impressions before ocelli very small, puncture- 

 like. 



1, Antennae reddish-yellow at base, brownisli at 

 apex ; elytra scarcely visibly punctured. 



Flat. Black, dull, with silky reflection ; thorax and 

 elytra red-brown ; legs and basal half of antennae reddisli- 

 yellow, apex of latter brownish. Punctuation scarcely 

 visible ; thorax almost double as broad as long, depressions 

 on disc not very deep. L. 4 1. Common. H. pusillum, Gr. 



2, Antennae entirely yellow ; elytra diffusely but 

 distinctly punctured. 



Flat. Pitchy, somewhat shiny ; antennae and legs yel- 

 low, former with apical joints distinctly more thickened. 

 Thorax mth anterior angles rounded, dorsal depressions 

 deep ; elytra very finely alutaceous, diffusely but distinctly 

 punctured. L. -4 1. If. 2Junctipcn7ie, Th. 



b. Last joint of posterior tarsi shorter than tlie rest 

 together. 



I, Antennae scarcely reaching middle of tliorax, 

 thick, pubescent. 



