COLLEMBOLA OF MINNESOTA 85 



a third-story window of Pillsbury Hall at the University, under 

 jars where a little moisture remained untouched by the sun. 



Lepidocyrtus albicans Reut. 

 PI. VII, Figs 6a-8. 



1895. Lepidocyrtus albicans. Renter, Finl. Coll. p. 20. 



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



The species is described as : "Silvery, without the scales, 

 entirely white, with only the eye spots and a spot between the 

 bases of the antennas black, Ant. IV and the distal end of III 

 pale blue. Ant. I, II and III together about as long as the 

 head, IV shorter than II and III taken together ; dentes equal 

 to the manubrium in length; or a little longer; mesonotum 

 slightly prominent. Length 1-1.5 mm." 



The above description fits well excepting that Ant. Ill 

 and IV and the tip of II are pale blue, which accords with the 

 description given by Schaffer; and the mesonotum, which seems 

 to me quite prominent. Possibly I am mistaken in my identifi- 

 cation of this species. It is rather common, living solitary un- 

 der sticks and stones. 



Lepidocyrtus decemoculatus n. sp. 

 PI. VII, Fig. 14. 



Entirely white, or with a yellowish or brownish cast, ex- 

 cepting the antennse which are entirely blue, the black eye spots 

 with a slight blue shading ofif at their posterior borders, and a 

 dark brown line connecting the anterior ends of the eye spots. 

 Ocelli reduced, 10 in number, six to each eye spot. Antennae 

 short, stout, the segments proportioned about as in L. pur- 

 pureus, but more hairy. Claws with a single tenent hair and two 

 inner teeth on the superior claw, as usual in the genus. Man- 

 ubrium equal in length to the combined length of the mucrones 

 and dentes. Mucrones of the usual form. 



Probably the smallest species yet described, being but .8 mm. 

 in length. In color it agrees pretty closely with L. albicans, 

 but is a much stouter-bodied species, and has the mesothorax 

 more massive, even, than in L. purpureus. The scales are sil- 

 very white. This little insect is extremely agile and difficult to 



