172 Notes on Australian Coleoptera. 
The sorts of Promecoderus are so nearly allied to one 
another, that J think it will be useful to give here a few 
distinctive characters of the sorts that I have in my 
collection. Some of these characteristic distinctions are 
light and even variable, but the general fascies makes it 
impossible not to separate the species; in all cases the 
eens notes will always considerably help the entomo- 
ogist :— 
A. Thorax without a longitudinal sulcate (Tasmanicus). 
B. Thorax with a longitudinal sulcate in the middle. 
a. Hlytra striated. 
* The strize punctated. 
Head large, elytra oval (Maritimus). 
Head ordinary, elytra oblong (Striato-punctatus). 
Head ordinary, elytra oval, body black (Bassi). 
Head ordinary, elytra oval, body copper colour 
(Wilcoxit). 
The Strize not punctated. | 
e. Basal article of the antenne black or dark. 
Ordinary size; elytra oval, with faint strize on 
the entire surface (Wigricornis). 
Ordinary size, elytra oval, with moderate striz on 
the entire surface (Albanensis). 
Ordinary size, elytra oval, striz strong, but only 
on the sutural half of the elytra (Semistri- 
atus). 
Ordinary size, dvi oval, striz strong, extending 
nearly to the margin (Hlegans). 
Ordinary size, elytra oblong, strongly striated 
(Neglectus). 
Small size, elytra oval (Pygmeus). 
Small size, elytra very oblong (Mimutus). 
cc. Basal articles of the antenne of a light colour. 
Elytra oblong, strize all over the elytra (Oblongus). 
Elytra oblong, striz only towards the sutura 
(Modestus). 
Elytra oval, thorax cordiform, globular, striz of 
the elytra strong (Gubbus). 
Klytra oval, thorax cordiform, globular, strie of 
the elytra very faint, colour black (Scawrordes).. 
Hlytra. oval, thorax cordiform, globular, striz of 
the elytra very faint, colour metallic (Brunni- 
cornis). 
eR 
