THE CANADIAN ENTOMOLOGIST. 221 



and is similar in shape to species of Euphoria. The body and 

 legs are metallic, bronze green in colour, save for the elytra which 

 are reddish brown with dark margins. The lateral margins of the 

 abdomen bear single tufts of conspicuous yellowish white hairs 

 on each segment and a pair of these tufts on the exposed dorsal 

 surface of the last segment. Each tuft extends downward form- 

 ing a transverse line on the ventral surface, which becomes obsolete 

 in the central portion. The ventral surface of the thorax and the 

 basal segments of the legs are conspicuously hairy. 



NOTES ON COCCID.E (HEMIPTERA). 



BY G. F. FERRIS, STANFORD UNIVERSITY, CALIFORNIA. 



It is the belief of the present author that more may now be 

 accomplished by the redescription of many of our named species 

 of Coccidse than by the addition of new forms. Especially is it 

 desirable that the types of many of the non-Diaspine genera be 

 elucidated for the existing descriptions are, in certain cases, so 

 inadequate that only the most vague and unsatisfying conception 

 can be formed from them of the real character of the genera which 

 they typify. Nor will the mere redescription of these forms in 

 terms of the methods heretofore so generally employed by certain 

 authors be sufiticient. There must be an accompanying search 

 for characters of real significance. Confidence in the all-suffi- 

 ciency of the number of antennal segments and the character of 

 the secretions as taxonomic criteria can no longer be maintained. 



The present paper, therefore, is the first of a proposed series 

 in which redescriptions of and notes upon the more interesting 

 and more significant species available for study will be presented. 

 Throughout these papers no references other than to the Fernald 

 Catalogue and its supplements will be given, except in the case of 

 some which may not be found therein. 



Genus Cryptokermes Hempel. 



1903. Fernald, Catalogue of the Coccidee, p. 88. 



Monophleboid Coccidae in which the adult female is entirely 

 without legs or antennae (and possibly without mouth-parts) , re- 

 maining enclosed within the derm of the penultimate stage; penult- 



July, 1918 



