128 PAPIEIUS. 



itself varies in this respect, and one specimen of the 

 present species had a second very minute tooth. 



The saltatory appendage offers no special pecu- 

 liarity. 



Pajpirius polypodies, Linn. 



Podura atra, Linn. Faun. Suec. ? 



— polypoda, Linn. Syst. Nat. 



— — Fabricius. Ent. Syst. 



Smynthurus polypodus, Bois. & Lac. Faun. Ent. Env. Paris. 



— — Burmeister. Hand. d. Ent. 



— — Lucas. His. Nat. Anim. Art. 



Plate XI. 



LimifBus describes this species as follows : 



" Podura subglobosa atra, antennis longitudine 

 corporis apice albis," and places it between P. viridis 

 and P. atra. Fabricius, Burmeister, and Lucas only copy 

 this description. Latreille does not mention it. Nicolet 

 and Bourlet do not appear to have found any species 

 answering to Linnaeus' description. 



The English specimens, which I believe to represent 

 this species, are violet rather than black. I have met 

 with them sparingly, during the month of ISTovember ; 

 but they are difficult to see. They are somewhat trans- 

 parent, slow, and curiously awkward in their move- 

 ments; the long legs and antennae giving them somewhat 

 the appearance of a Pycnogonum. 



M. TuUberg has kindly sent me specimens from 

 Sweden, and, though doubtfully, had himself come to 

 the conclusion that they represent Linngeus' P. poly- 

 poda. 



In the ' Fauna Suec' it is described as P. atra, but 

 as Linnaeus himself replaced " atra " by ^'^ polypoda,'^ I 

 suppose the later should stand. Neither of the two 

 names for this species is, however, very happily 

 chosen. 



