JOURNAL OF ENTOMOLOGY AND ZOOLOGY 169 



Neanura gigantea Schaffer, Fauna Artlica, 1, laf. 2, p. 240, 

 1900. Folsom, papers from TTarriman Alaska TCxpd., XXVII, 

 p. 87, 1902. Bacon, P. 0. jr. ent. and zool., vol. VI, p. 46. 

 Description: Length — 3.5 nun. Widtli — 1.5-2.5 mm. Color^ 

 Dark blue, lighter on the ventral side. Body — Broad, flat, cov- 

 ered with long dark tnliercles, the numbers on each successive 

 segment being: six, eight, eight, eight, eight, eight, eight, six, 

 two. Each tubercle bears several long setiie. Head — A little 

 longer than the first two segments together, twice as broad as 

 long, with thirteen tubercles. The head is divided into two 

 parts, a raised upper portion with five small tul)ercles and two 

 large tubercles containing the eyes, and a lower portion with 

 six large tubercles. Antennae — Short, half as long as the head, 

 conical, with segments related in length as 4:3:2:6; on the 

 dorsal side it is hard to distinguish more than three segments, 

 but four show plainly on the ventral side; basal segment is 

 round, the terminal one is as long as the other three together; 

 no sense bulbs. Ocelli — Five in each eye spot, situated on a 

 tubercle with three large setas. Postantennal organs — Each 

 composed of more than 100 clavate papilla forming a rosette. 

 Claws — One, short, stout, curved, armed with a minute tooth 

 al)out midway; minutely tuberculate. Anal horns — Wanting. 

 Integument — Finely tuberculate and covered with large tuber- 

 cles bearing stiff yellow setae. 



Variation: My specimens seem to be the same as those 

 described by Dr. Folsom except that they have one more 

 tubercle on the anterior part of the head; this is constant in 

 all my specimens. 



Habitat: Cucamonga Canyon, rotten piece of wood, in 

 November; Fern Canyon, under rocks. Palmer's Canyon, under 

 rocks. Pomona hills, December, and Chino Hills, January, 

 under rocks. Eucalyptus Hill, Lagama Beach, under rocks, 

 March; Live Oak Canyon, January. 



Tullberg and Schott have recorded this species from several 

 localities in Siberia, Yenisei Eiver, and vicinity of St. Law- 

 rence Bay. Tullberg is confident that it does not occur in Nova 

 Zembla, Spitzbergen or Greenland. 



