OROHESELLA. 131 



second abdominal segment, two patclies on the meso- 

 thorax, and two spots on the posterior margin of the 

 fourth abdominal segment are white ; the two terminal 

 segments of the antennas are brown. The rest of the 

 body is mottled, and specimens may be found of every 

 hue between light reddish brown and deep black. 



In the black specimens the dark band on the third 

 abdominal segment ceases to be conspicuous, and the 

 pale one on the second abdominal segment comes out 

 by contrast ; such specimens constitute the Podura 

 vaga of Linnaeus and subsequent authors. On the 

 other hand, in pale specimens the dark band on the 

 third abdominal segment is the salient feature ; and 

 these specimens form Linnseus's P. cincta. This name 

 seems to me the best of all those which have been 

 given to the species, because in all cases one or other of 

 the transverse abdominal bands is the distinctive 

 characteristic of the species. 



Norway, Sweden, Switzerland, France, England. 



Length, '25 of an inch. 



Orchesella villosa, Geof. 



Podura villosa, Geoffroy. Ins. Env. Paris. 



— — Linn. Sys. Nat. 



— — Sclirank. En. Ins. Austrise. 



— — Sulz. His. Ins. 



— — Fabricius. Ent. Syst. 



— — Latreille. Gen. Crus. et Insect. 



— — Lac. et Bois. Fauna. Eut. Env. Paris, 



— — Dumeril. Cons. Gen. 

 Clwreutes villosa, Burmeister. Haudb. d. Entom. 

 Podura syhatica, Mnller. Zool. Dan. Prodr. 



Heterotoma villosissima, Bourlet. Mem. Soc. Roy. Lille, 1839. 



— grisea, „ „ „ „ 

 Isotoma villosa, „ „ „ „ 

 Orchesella villosa, Nic. Mem. Soc. Helv., 1842. 

 JEtheocerus griseus, Bourlet. Mem. Soc. Roy. Douai, 1842. 

 Podura villosa, „ „ „ „ 



— — Lucas. His. Nat. Crus. Ar. et. Myr. 



— annulata „ „ „ „ 

 Orchesella villosa, Gervais. His. Int. Apteres. 



— histrio, „ „ „ 

 Isotoma villosa „ „ „ 



