96 



REPORT UPON A COLLECTION OF 



but only the last segment anterior to the pygidium with gland spines. 

 Dorsum with submedian groups of ducts. 



Fig. 17. Diaspis simmondsiae n. sp. : A, pygidium; B, margin of pygidium; C, 



antenna of first stage. 







Second stage closely resembling the adult, but with very few ducts. 

 First stage with the antennae (Fig. 17C) 6-segmented, the terminal 

 segment not annulate but slightly elongate. Pygidium without lobes. 



Notes : This species is one of a group to which belong such forms as 

 Diaspis texensis Ckll., D. manzanitae (Whit.), and D. toumeyi Ckll. 



Genus PSEUDODIASPIS Ckll. 



1897. Cockerell : Bulletin 6, t. s., Division of Entomology, Department of Agri- 

 culture, p. 21. 



1919. Ferris: "Contribution to the Knowledge of the Coccidae of Southwestern 

 United States," Stanford University Publications, p. 52. 



Considering only the type species and one other (P. elaphrii n. sp.) 

 which I believe to be strictly congeneric, I should define this genus as 

 follows : 



