Australian and Tasmanian Coleoptera. 197 



from single specimens. The reason for this paucity of material 

 is probably the fact that, whilst many ants' nests have been 

 superficially examined, they have seldom been specially searched 

 for species of these genera, and their deceptive resemblance 

 to ants or insect remains is very strong; when mounted this 

 resemblance would hardly be thought possible. They probably 

 also, except when coming out to mate, live deep in the nests. 

 Probably when nests have been systematically dug out in Aus- 

 tralia and sent through sieves, etc., they will be found more 

 plentifully. Although several of the specimens described were 

 not taken in ants' nests, there is no doubt but that all the 

 species are truly myrmecophilous. 



Orectoscelis humeralis, Lewis. 



Taken by Dodd from an ants' nest at Townsville, and so re- 

 corded by Lewis. 



Chlami/dopsis comata, Blackb. 

 Described from " A single specimen found in a pool of water." 



Chlamydopsis duhoulayi, Westw. 



Taken originally by Duboulay, who frequently examined the 

 nests of ants ; but ants are not mentioned at the foot of the 

 description. 



(^hlam}/dopsis formicicnla. King (Byzenia). (Fig. 15.) 



This species was recorded by Lewis as a synonym of striafella, 

 but this is not correct. It differs in many respects from stria- 

 tella (of which I have a Swan River-^the type locality — example) 

 but in particular by the shoulders and striation. The following 

 remarks by King, on the elytra, apply only to this species of 

 all the genus known to me : — " They are marked by four strong 

 ridges, all rising towards one point, and nearly meeting behind 

 the shoulder, the apparent perforation betAveen the points being 

 fringed with a few stiff yellowish setae." 



I have, from the late Rev. R. L. King's collection, two speci- 

 mens which were obtained as co-types of Byzenia formicirola. 

 and from Liverpool (the type locality). Mr. Froggatt also sent 

 me a specimen. King described the colour as " Piceus," and 



