BATOCERTDAE. 275 



thorax. Besides these most variable differences of the co- 

 vering pile, I am quite unable to find a single characte- 

 ristic justifying a specific separation , in all the essential 

 points , as the peculiar structure of the antennae , the shape 

 of the thorax, the truucature of the elytra etc., they cor- 

 respond exactly. My opinion is that B. Ajax (Dej.) Th. 

 must be regarded as the immaculate variety of ^. TitanaTh. 



The Banksian collection, which has served Fabricius for 

 his descriptions and is now preserved in the British Mu- 

 seum, contains a (ƒ specimen of B. humeridens Th. under 

 the name of B. rubus Pabr. Fabricius almost always indi- 

 cates from what collection he has described the species , 

 but unfortunately his B. rubus is wanting this useful in- 

 dication ; however it is most probable that the specimen 

 mentioned above is the very type. 



Most of the synonymical remarks about the species des- 

 cribed by Mr. Pascoe proved to be correct. B. Ammon 

 Pasc. must certainly be referred to B. armata Oliv. ; Mr. 

 Pascoe's name is chiefly relative to small male specimens 

 of armata. B. orcus Pasc. was founded upon a (ƒ & Q 

 specimen of the variety of B. armata Oliv. with distinct 

 white spots on the elytra. B. metallescens Pasc. is a large 

 strongly rubbed specimen of B. celebiana Th. B. cinnamo- 

 mea Pasc. Q is a distinct species and not at all identical 

 with B. armata Oliv. V ; it is more nearly allied to the 

 female of B. Wallacei Th., its prothorax being very like 

 that of the latter; from armata it might easily be distin- 

 guished by the last antennal joint , which is not spatula- 

 shaped , and by the truncature of the elytra , which is 

 not cut off in a straight line , but is rather deeply emar- 

 ginated. In regard to B. Claudia, Mr. Pascoe kindly in- 

 formed me that he had made mention of it only inciden- 

 tally •, moreover the specimen is no longer in his cabinet 

 and Mr. Pascoe did not remember what became of it, of 

 course this name ought to drop from the genus. 



JVotes from the Leyden. JVEnseum , Vol. IX. 



