Le Conte on the Pselaphide of the United States. 
61 
` tives in Europe; a fact which leads me to infer that the total 
number of species of Pselaphidz in North America, notwith- 
standing the rarity of the individuals, is larger than in the 
corresponding part of the other continent.' 
TABLE OF CORRESPONDING GENERA AND SPECIES. 
Europe. 
Batrisus, 4 species 
Chennium bituberculatum. 
Faronus Lafertei. 
Ctenistes, 2 species. 
Tyrus mucronatus. 
Pselaphus, 2 species. 
Tychus, 4 species. 
Bryaxis sanguinea. 
mpres 
antennata. 
Bythinus, 13 species. 
Euplectus, 17 species. 
United States. 
Batrisus, 17 species. (18?) 
Ceophyllus monilis. 
Cedius, 2 species. 
Faronus? Tolule. 
Ctenistes, 2 species. 
Tmesiphorus, 2 species. 
Tyrus compar 
Hamotus humeralis. 
Pselaphus, 2 species. 
Tychus, 2 species. 
Arthmius globicollis. 
Bryaxis conjuncta. 
tata. 
velutina. 
hematica. 
abdominalis. 
puncticollis. 
rubieunda. 
propinqua. 
lunifer. 
tomentosa. 
3 sp. (antennis, 10-artic- 
Eupsenius glaber. 
Rhexius insculptus. 
Euplectus, 10 species. 
viger, 3 species. Adranes cecus. 
3 EF e pangeeph. was written before undertaking a recent journey to the upper 
part of sult of that trip was such as to show abundantly the -— 
of the ri exe. to prove that by a careful analysis of even limited material, we 
may be able to see the general operation of nature's laws, even before the results of 
these laws become evident ; and thus to o predict, as it were, the general nature of the 
denim of any Suiticelnr group of organized 
beings. During astay of four 
btained. 
weeks in upper Georgia, eighteen new Pselapbidz were o 
