506 Mr. Westwood on the Genus Siaphylinus. 



*' 2. O. bicornis. Jthrens, Fn. Eur. fasc. vii. nondum editus, 

 Siagoniuin quadricorne, Kirby and Spence, Introd. to 

 Entom. i. tab, i. fig. 3, vix differt. 



" 3. O. fracticornis, &c." 



His division Fossoues, therefore, comprises the sub-genus 

 Bledius, and the species congenerous with O. fracticornis, from 

 both of which the habits of Siagonium are entirely distinct, as I 

 have shewn in my former Paper. And with reference to the note 

 placed after 0. bicornis, it is evident that if the figure in Ahrens' 

 Fauna referred to be a correct one, and that species really be the 

 same as our quadricorne, Nicolai has inadvertently introduced it 

 amongst his Fossores, with which group it has not the slightest 

 connexion. Should^ however, Ahrens' figure be that of a true 

 Bledius, Nicolai cannot have seen the figure of Siagonium in the 

 Introduction to Entomology. 



With regard to the number of eyes in the Larvae of the Brack- 

 elytra, and which I had considered to be four, two being placed 

 on each side of the head, I have to add that it is not easy to 

 ascertain distinctly their number in dark coloured specimenSj 

 since they appear as irregularly formed minute tubercles. In one 

 which I possess, having the head lighter coloured than usual, I 

 perceive on each side, (behind the insertion of the antennae), four 

 of these tubercles placed in an irregular square, and of a black 

 shining colour. 



P. 59, line 8. For Labrum, read Labium. 



P. 59, line 18. For truncnm, read truncum. 



Id. line 29. For enebrosis, read tenebrosis. 



At page 60, I have observed that I was not acquainted with 

 any author, who had figured the Larva of any of the StaphylinidcB. 

 I was not aware, however, at the time, that, notwithstanding Mr. 

 Marsham and Mr. Walford's opinions upon the subject, subse- 



