126 PAPIRIUS. 



measured from the fold wliicli separates (it my sugges- 

 tion is correct) tlie first from the second abdominal 

 segment, is '0125" in length ; the middle part is "022" 

 in length, with a breadth of "002" at the base, and -002" 

 at the extremity, while the terminal segment is "0075" 

 in length, and '00125" in width, at the base. It tapers 

 a little towards the extremity, and has from thirty to 

 forty small teeth on its inner margin. 



The distribution of the hairs resembles that of the 

 preceding species. 



The hairs on the posterior part of the abdomen are 

 of two sorts, some being short and sword-shaped, 

 while others (PL LXY, fig. 6) are longer and resemble 

 a lady's riding-whip. 



The males may be distinguished from the females, so 

 far as my observations went, only by the presence of a 

 small papilla on the ventral surface just in front of the 

 anus. 



Nicolet's figures of his S. ornatus and S. Goulonii 

 represent them as possessing antennse resembling those 

 of SmyntJiurus, hence, 1 naturally at first considered my 

 specimens as constituting a new species, which I pro- 

 posed to dedicate to the eminent biologist Mr. W. W. 

 Saunders. Having, however, satisfied myself that my 

 Fapirius Saundersii is a common Swiss species, and 

 having searched vainly in that country for any other 

 representative of S. ornatus or ;S'. Goulonii I am forced 

 to the opinion that Nicolet's figures are incorrect, and 

 that his insects were not really Smynthuri but belonged 

 to my genus Papirius. S. Coulonii appears to me to 

 be a mere variety of 8. ornatus ; however, it may be 

 convenient that I should give Nicolet's description, 

 which is as foUovf s : 



" Semblable au precedent pour la forme. Corps peu 

 velu et d'un beau jaune gomme-goutte, oflfrant plusieurs 

 taches irregulieres d'un brun rougeatre clair, et rayon- 

 nant du centre a la circonference, de maniere a pre- 

 senter I'image grossiere d'une croix de chevalier, plus 

 une autre tache carree, noire, portant quatre points 



