88 COLLEMBOLA OF MINNESOTA 



importance once attached to them. The mesonotum projects but 

 little, and is more massive than in the preceding species. Some 

 of the specimens attain even 1.5 mm. in length. Abundant under 

 logs and stones. 



Lepidocyrtus pusillus (L.). 



1767. Podura pusilla. Linn. Syst. Nat. Ed. XII. II, 2. p. 1014. 



1788. Podura lanuginosa. Gmel. Linnaeus Syst. Nat. I, 6. p. 2911 



1871. Lepidocyrtus seneus. Tullberg, Fort, ofver. Sv. Podur. p. 150. 



1862. Lepidocyrtus lanuginosus. Tullberg, Sver. Podur. p. 38. PI. VI, i 7. 



1871. Lepidocyrtus aeneus. Lubbock, Monogr. Coll. and Thys. p. 154. 



PI. XXIX. 



1871. Lepidocyrtus pusillus. Lubbock, Monogr. Coll. and Thys. p. 156 



1890. Lepidocyrtus lanuginosus. Uzel, Thys. Bohemias, p. 52. 



1893. Lepidocyrtus lanuginosus. Schott, Palaearct. Coll. p. 45. 



1895. Lepidocyrtus lanuginosus. Renter, Finl. Coll. p. 19. 



1896. Lepidocyrtus lanuginosus. Schaffer, Coll. von Hamburg, p. 200. 



1897. Lepidocyrtus lanuginosus. Lie-Pettersen, Norg. Coll. p. 12. 



1897. Lepidocyrtus lanuginosus. Poppe & Schaffer, Coll. v. Bremen, p. 

 271. 



The species is associated with so many insufficient and vary- 

 ing descriptions that it is not easy of determination. However, 

 if I have assigned my specimens rightly to this species, the fol- 

 lowing description may be ventured, Color rather a clear blue, 

 of about uniform tint throughout the body. Head somewhat 

 lightei and more purplish in tint, with the posterior part, and 

 a spot mediad to each eye spot nearly colorless. Antennae short, 

 little longer than the head, entirely blue, growing darker toward 

 the apex. Ventral tube blue. Coxae and femurs purplish blue, 

 tibiae and feet colorless. Manubrium faint blue, dentes color- 

 less. 



About like L. purpureus in form, but without the brownish- 

 yellow legs and basal parts of the antennas. The figures given 

 for the claw, mucrones and mesothorax of L. purpureus would 

 apply about equally well to this species. The antennas, however, 

 are shorter in proportion to length of head. When the body is 

 straight, the white, inter-segmental bands are not apparent, ex- 

 cept slightly at the anterior ends of Th. Ill and Abd. IV. 



Length, i mm. Taken under loose bark, etc. 



