106 THE MONTHLY BULLETIN. 



titrelitzia regina. 



Pseudococciis citri. 

 Sunflower, Wild (Helianthus annuus). 



Pseudococcus hakeri (roots). 



Pseudococcus solani (roots). 

 Tacsonia jasmlnoldes. 



Pseudococcus citri. 

 Thuya oricntalis — see Chinese Arbor-vitae. 

 Tobacco (Nicotiana tahacum) . 



Pseudococcus citri. 

 Tomato (Lycopersicum esculentum) . 



Pseudococcus solani (roots). 

 Tradescantia multicolor — see Wandering Jew, Variegated. 

 Umbrella Plant (Cyperns alternifolius) . 



Pseudococcus citri. 



Pseudococcus longispinus. 

 Walnut (Juglans regia^. 



Pseudococcus hakeri. 

 Wandering Jew, Variegated {Tradescantia multicolor). 



Pseudococcus citri. 

 Willow (Salix sp. ). 



Pseudococcus hakeri. 

 Verba Santa or Mountain Balm {Eriodictyon calif ornicum) . 



Pseudococcus yerha-santw. 

 Yucca australis. 



Ceroputo yuccw. 

 Yucca filifera. 



Ceroputo yucccr. 

 Yucca whipplei. 



Ceroputo yuccw. 

 Zamia sp. 



Pseudococcus longispinus. 



DESCRIPTIONS OF SPECIES. 



Under the descriptions of species it is desired to be as brief as possible 

 and in most of the non-economic forms, especially, only the fewest pos- 

 sible characters will be included. It is hoped that the illustrations will 

 prove of value in the distinguishing of the various species and it is 

 suggested that they be referred to often, 



THE TUBER MEALY BUG. 



Pseudococcus affinis (Mask.). 

 The U. S. Department of Agriculture has recorded this species in 

 California as attacking Anemone sp. The tuber mealy bug occurs in 

 Australia, and if found in California was undoubtedly imported upon 

 some of its host plants, those recorded being the tubers of dahlias and 

 potatoes. 



THE COAST LIVE OAK MEALY BUG. 



Pseudococcus ogrifoliiE Essig. 

 (Fig. 23.) 



Color — The bodies of the adult females are usually yellow, though 

 they may vary from this color to light pink. They are covered with a 

 very fine white wax, which allows the segmentation and the color of the 

 body to show very clearly. Many specimens appear entirely naked. 



Eggs — It is not known whether eggs are laid or the young are born 

 alive. 



Filaments — The lateral filaments are scarcely perceptible and the 

 anal filaments or tails are no longer than those on the sides. 



