62 



in tlie Dictionnaire classique d'histoire naturelle, article Mo- 

 rion, that I think it probable that it was taken from my insect. 

 The antennse are considerably flattened in the middle, so as to 

 appear larger in one direction ; and the tarsi of the third pair 

 of legs are mncli more robust, and thicker than the rest in both 

 sexes, — characters which, with the preceding one, have escaped 

 the notice of Mr. Say, and yet are important ; for the last, if 

 common to all the species of this genus, ought to be considered 

 generic, as it is not a common one. 



March 8tli. 



No. 814 [814 Hentz's mss. Catal. = Modes ? fragilis] I 

 agree with you in thinking nearer DasciUus than Modes, as the 

 mandibles are not much concealed under the labrum, but the 

 last joint of the palpi is not what could be called '■'■tronque ou 

 tres obtus." 



I have now no less than six distinct species congeneric with 

 No. 807. [807 Hentz's mss. Catal. ^ 3Iifcetophagus jyunctatus 

 Say.] When you see them all I think you will be convinced 

 that they are distinct from Mycetoi^Tiagiis Fabr. By the by, 

 what genus of Latreille do you mean ? Is it Eustroplms ? If 

 that be the case, I think I have tlu-ee species to which the name 

 applies better. One of them you marked Eustrophus hicolor ? 

 To these the characters given in the Dictionnaire classique 

 d'histoire naturelle ''''tHe tres jyenchee^'' applies very well.' I 

 have two more species to which all the characters of Eu8trop)lius 

 apply except this, " ct dont aiiciin des articles,'''' (speaking of 

 the antennae) a partir du 3""' n^est lenticulaire''' ; they having 

 slightly perfoliate and moniliform antennae. These five species 

 have the body more or less attenuated behind. But besides 

 these I have two species, one of which. No. 448 [448 Hentz's 

 MSS. C!x\?\.^=Diaperis hicolor ? Fabr.] you have. I had marked 

 that one M. hicolor Fabr., and the other 31. flavijjes. They are 

 both nearer Diaper is than any of those mentioned above. 



