144 JOUKNAL OF ENTOMOLOGY AND ZOOLOGY 



Genus Papirius Lubb. 

 I found one member of the genus near Escondido in leaves 

 under a sumach bush. 



Genus Smynthurus Lat. 

 I collected several specimens of this genus on pools of water 

 after a hard rain, associated with a new species of Isotoma; 

 one specimen from a tree in Cow Canyon and another specimen 

 from Sycamore Hill, Laguna Beach, none of which I have yet 

 been able to identify. 



Family ENTOMOBRYID^ 



This family is a large one, containing many genera as well 

 as species and was the one found most commonly in this 

 region. The genera differ greatly from each other and con- 

 sequently by the later authorities have been divided into several 

 sub-families. 



Key to the Family ENTOMOBRYID^ 



A. Body naked or covered with hairs. 



B. Two ocelli on either side of the head. Genus Sinella 

 BB. Usually eight ocelli on either side of the head. 



C. Abdomen III and IV about equal in length. 



Genus Isotoma 

 CC. Abdomen IV at least four times as long as 

 III. Sub-Family Entomobry'in^ 



E. Distal end of furcula curved, with- 

 out anteapical tooth. 



Genus Drepanura 

 EE. Mucro with two hooks. 



Genus Entomohrya 

 AA. Body covered with scales. 



B. Eyes twelve or none ; antenn.T ringed on III and IV. 



Sub-Famil.v Tomocekin.e 

 C. Eyes twelve. Genus Tomocerus 



BB. No antennal segments ringed. 



C. Ocelli wanting. Genus Cyphodeirus 



CC. Ocelli present. 



