84 COLLEMBOLA OF MINNESOTA 



to be inter-mistaken, however, owing to the decided difference 

 in color. S. buskii is also much more hairy and has the ocelli 

 larger in proportion to the size of the eyespot. Collected under 

 boards and paper in dark places, sometimes dry, sometimes wet. 

 Taken once in the basement of Pillsbury Hall at the University. 

 A very active species ; living solitary, so far as my observation 

 goes. Not abundant. Hitherto it has been found in England, 

 Finland, Norway, Germany, Austria, Hungaria, Bohemia, the 

 Tirol and Italy. Dr. Folsom also mentions it as one of the spe- 

 cies "apparently restricted to the eastern part of the United 

 States," and which may be a recent importation from over the 

 ocean. 



Seira nigromaculata Lubb. 

 PI. VIII, Figs. 1-7. 



1873. Seira nigromaculata. Lubbock, Monogr. Coll. and Thys. p. 146. 



1872. Sira elongata. Tullberg, Sveriges Podurider. p. 41. PI. VI, 22-35. 



1895. Sira nigromaculata. Reuter, Finl. Coll. p. 23. 



1896. Sira nigromaculata. Schaffer, Coll. von Hamburg, p. 202. 



"Gray; the scales give it a mottled appearance. The eyes 

 are on dark patches. There is a dark band running along the 

 side of the body, on the front margin of the mesothorax. and 

 on the posterior edge of the third, fourth and fifth abdominal 

 segments. The third abdominal segment has also a transverse 

 dark band in the middle, interrupted at the center. The sixth 

 abdominal segment is black. The legs are annulated ; the an- 

 tennas iron grey, the segments being paler towards the base. 

 The spring reaches forwards as far as the ventral tube. The 

 clubbed hairs are numerous. The markings on the scales are 

 peculiarly bold. Length one-twelfth of an inch." 



Tullberg has tried to identify this species with Degeeria 

 elongata Nicolet, but without foundation. He mentions and 

 figures five pairs of specialized touch hairs (kansel har). The su- 

 perior claw bears three inner teeth, and, according to Tullberg, 

 one outer tooth in addition, though I have failed to find it on 

 my specimens. He gives the length as one and one-half milli- 

 metre. 



I have taken the species but once. On Sept. 19, 1899, a 

 dozen specimens were found on the outer stone window sill of 



