112 



THE MONTHLY BULLETIN. 



THE BARNACLE SCALE. ' 



Vcroplastes cirripctlifoniiis Conist. 

 (Fig. 94.) 



General Appearance. — This wax scale greatly resembles the Florida 



wax scale in shape. The body is dark red 

 or brown, and the white waxy covering is 

 mottled with shades of gray. There is a 

 spine-like projection at the posterior end of 

 the bod}', which is hid by the wax. The 

 length is one fifth of an inch; width one 

 sixth of an inch ; height the same as the 

 width. This species is larger and particu- 

 larly higher than the Florida wax scale. 



Life History. — Eggs reddish brown, 

 darker than those of the Ceroplasfes flori- 

 densis. Young are dark brown in color. 

 The development and work are practically 

 the same as that of Ceroplastcs fJoridensis. 



Distribution. — Principally in greenhouses 

 in the central and southern part of the 

 State. 



Food Plants. — Citrus trees, quince, Eiipa- 

 torium, myrtle, persimmon, Solanum. Lig- 

 num vitcE. 



Control. — The same as for C. floridensis. 



Fig. 94. — The barnacle 

 scale, Ceroplastes cirripedi- 

 f or mis Com.st. (After Corn- 

 stock. ) 



THE FLORIDA WAX OR WHITE SCALE. 



Ceroplastes fioridensis Comst. 

 (Fig. 95.) 



General Appearance. — White or pinkish waxy scales, oval in form, 

 convex aljovc and concave beneath, from one twelfth to one eighth of 

 an inch in diameter. The upper surface is evenly and beautifully 

 lobed, as shown in Fig. 95. The body is red and seen through the 

 white wax gives the pinkish color. 



Life History. — The eggs, one hundredth of an inch long, are dark 

 red and vary from seventy-five to one hundred to each female. The 

 young hatch beneath the scale and soon after leaving settle to feed, 

 first upon the leaves, and then upon the stems and smaller branches. 

 The wax shell forms with the growth of the females. There are from 

 three to four broods a year, covering a period from April to November. 



Distribution. — Very limited in hothouses. 



