THE REDWOOD MEALY BUG (DACTYLOPIUS 

 SEQUOIA, SP. NOV.) 



BY GEORGE A. COLEMAN. 



CONTENTS. 



Plate XXVII. 



Page. 



Prefatory Note 409 



I. Description of the Species (Dactylopius sequoia, sp. nov.). . 410 



1. The Egg 410 



2. The Larva 410 



3. Development of the Male 412 



4. Formation of the Pupal Case 413 



5. The Pupa 413 



6. The Adult Male 414 



7. The Adult Female 415 



II. Life-History and Habits 4^5 



1. The Young Larva 415 



2. Second Larval Stage 416 



3. The Male Pupa 416 



4. The Female and Ovisac 417 



5. Distribution 418 



6. Parasites 41S 



Description of Plate 420 



Prefatory Note. 



The author's attention was first called to the Coccid 

 described in this paper, in December, 1899, while searching 

 for scales on a small isolated redwood tree (Sequoia sem-per- 

 virens) on the grounds of Cedro Cottage Place, about one 

 mile west of Stanford University. Early in January, 1900, 

 the young were found making their appearance on the lower 

 branches of redwoods, where the tree was thick and the 

 insects well protected. 



From this time on, the insects were under daily observa- 

 tion, both on their native trees and on potted branches in 

 the laboratory, until the male and female were fully devel- 

 oped, the female had deposited her eggs, and the young 



[409 J May 6, 1901 



