DEGEERIA. 159 



trois qui le precedent pris ensemble. Pattes jaunes, et 

 queue entierement blanche." 



He also describes two varieties. 



My specimens, however, while corresponding with 

 the above description in the general distribution of 

 colour, differed in some points. The body, at the sixth 

 abdominal segment, was as broad as in front ; the 

 black patch on the head was sometimes absent ; the 

 transverse dark line was often incomplete in the centre 

 on the first and second abdominal segments, and the 

 same was the case with the anterior band of the fourth ; 

 the fifth was dark behind ; the antennae were gray ; 

 and, finally, the anterior half of the head had a dark 

 border. The species of this genus vary, however, a 

 good deal in the distribution of the markings, and I am 

 therefore unwilling to describe mine as new, especially 

 as, in some respects, they appear to be intermediate 

 between D, nivalis and D. nigromaculata. 



The saltatory appendage scarcely reaches to the 

 ventral tube. 



Length '077 of an inch. 



Sweden, Switzerland, France, England. 



Degeeria ajinulata, Fabr. 



Podura arborea grisea, De Geer. Ges. d. Ins. 



— annulata, Fabr. Ent. Syst. 



— nivalis, Latreille. Gen. Crus. et. Ins. 



— annulata, Bois. et Lac. Faun. Ent. Env. Paris. 



— nigromaculata, Temp. Trans. Ent. Soc., vol. i. 



— minuta, Burm. Hand. d. Entom. 



Isotoma fusiformis, Bourlet. Mem. Soc Roy. Lille, 1839. 



Podura cursitans „ „ „ Douai, 1842. 



— annulata „ „ „ „ 



— nigromaculata, Lucas. His. Nat. Crus. Arach. et Myi'. 



— annulata, „ „ „ „ 

 Isotoma fusiformis, Gervais. His. Ins. Apt., vol. iii. 

 Degeeria — Nicolet. Ann. Soc. Ent. France, 1847. 



— — Herklots. Mem. de la Soc. Ent. des Pays Bas, 



1858. 



Body fusiform, pale greenish yellow or stone-colour. 

 Head rounded, with a black fascia anteriorly, including 



