THE CANADIAN ENTOMOLOGIST 9 



ring which is slightly darker than the remainder of the scale and indicates 

 the position of the second larval moult. 



Female. — The female is hght yellow in color in the adolescent stages, 

 becoming brownish as it reaches maturity. When fully developed the 

 thorax extends backward in a large rounded lobe on each side, projecting 

 beyond the extremity of the abdomen, giving the body a reniform shape. 



Scale of male. — The scale of the male resembles that of the female, 

 excepting that it is only one fourth as large, and the posterior side is pro- 

 longed into a flap which is quite thin. 



Male. — The male is light yellow ; thoracic band brown ; eyes purplish 

 black. 



The species described by Mr. Ashmead in the November number of 

 the American Entomologist under the name of Chrysotnphalus ficus Riley 

 MS. is simply a species of Aspidiotics ; and is not that known as the red 

 scale in California, as is indicated by Mr. Ashmead. Although I have 

 carefully explored many orange groves both in Florida and California, and 

 have had extensive correspondence with orange growers, I have been 

 unable to find Aspidiotus ficus in the last named State, and only in a single 

 grove in Florida. Here it was first observed by Mr. G. M. Holmes on 

 some sour orange trees imported from Cuba. On sending specimens of 

 it to a friend at Havana, I received others from that place and the infor- 

 mation that it is a very common species in the public gardens of that 

 city. The species can easily be distinguished from Aspidiotus citri by an 

 examination of the scale alone, which is much darker, being sometimes 

 almost black. 



DESCRIPTION OF THE PREPARATORY STAGES OF 

 PAPILIO PHILENOR, Linn. 



BY W. H. EDWARDS, COALBURGH, W. VA. 



EGG — Spherical ; the surface much covered with a rough crust which 

 rises to a summit, either small and pointed, or rather large and truncated ; 

 the sides of this crust irregularly melon-ribbed ; color of surface russet, 

 of the crust bright ferruginous. Duration of this stage 7 to 9 days. 



