162 JOUKNAIi OF ENTOMOLOGY AND ZOOLOGY 



Carpenter and Evans, 1899. Carl, 1899. Skorikow, 1900. 



Absalon, 1903. Borner, 1901. Krausbauer, 1901. Agren, 



1903. (Axelson) Linnaniemii, 1905, 1907, 1912. Wahlgren, 



1906b. 

 Podura vulgaris Vorgts, 1902. 

 Tomocerus niger Guthrie, 1903. 



Description: Length — 4 mm. Color — Blue, when denuded of 

 scale, yellow. Antennae — Two-thirds as long as the head and 

 body. Ocelli — Twelve. Claws — Superior armed with four to 

 six teeth on inner margin; inferior lanceolate and armed with 

 a minute tooth. Dental spines seventeen to twenty-three on 

 each side. Mucrones from five to seven intermediate teeth. 



Variation: In speaking of the dental spines of this species, 

 Folsom (1913) gives usually thirteen to fifteen in number, and 

 rarely seventeen or eighteen. The majority of mine had nine- 

 teen to twenty-one. 



Habitat: Cucamonga Canyon, Palmer's Canyon, Fern Can- 

 yon, San Antonia Canyon ; altitude 7000 feet. 



Tomocerus hidcntatus Folsom 



(Plate IV, Figs. 2-3) 



Tomocerus hidriitatus Folsom, 1913. Proc. U. S. Nat. Mus., 



vol. 46, pp. 451-472. 



Description: Length — 2 mm. Color — Yellow, mottled with 

 dark pigment. Antennae — Shorter than body. Ocelli — Sixteen. 

 Claws — Superior stout, armed with two teeth; inferior lanceo- 

 late. Dental spines sixteen. Mucrones with four to seven 

 intermediate teeth. 



H((hitat: Palmer's Canyon. 



Genus Cyphodeirus 

 Only one s])ecies of this genus has been found here. It is 

 really a white, eyeless Entomobrya with scales. nn>i)ius 



Cyphodeirus albinus Nicolet 

 (Plate IV, Figs. 4-5) 

 Crystalpoduran O. Fabricus, 1783. Danske V. denck., p. 303. 

 Cyphodeirus albiuus Nicolet, 1842. Hist, des Podurelles; p. 67. 



