106 



Icerya rosae Riley and Howard. 



Kiley and Howard, Insect Life, Vol. II, p. 333 (April, 1890). 

 Habitat : Key West, Fla. Food plants : Rose, Sugar Apple (?), Lime 

 (?), LemoD (?). 



Icerya moutserratensis Riley and Howard. 



Eiley and Howard, Insect Life^ Vol. Ill, pp. 99-103. 

 Habitat : Montserrat, W. I. Food plants : Chrysophyllum sp., Cocoa 

 Palm, Banana. 



Icerya palmeri Riley and Howard. 



Eiley and Howard, Insect Life, Vol. Ill, pp. 103-105. 

 Habitat: Sonora, Mexico. Food plants: Grape. 



SYNOPTICAL KEY TO SPECIES. 



Nev^ly Hatched Larvae. 



Six lateral bristles on borders of abdomen anterior to anal bristles not especially 

 longer than other lateral hairs. 

 Two especially long hairs on antennal club, last segment of abdomen with a 



rounded median emargination I. cegyptiacum (Douglsis). 



Four especially long hairs on antenna! club, last segment of abdomen not 



emarginate I, purchasi Maskell. 



Antennal club with very many long hairs, of which five are especially long. 



/. seychellarum (West wood). 

 Six lateral abdominal bristles anterior to anal bristles, strongly diiferentiated from 

 other lateral hairs. 

 These lateral bristles nearly as long as anal bristles, their tubercles directed for- 

 ward, and the bristles having a very pronounced forward arch. 



/. rosce Riley & Howard. 

 The six lateral bristles less than half as long as the anal bristles, slightly arched 

 forward, their tubercles issuing nearly at right angles to the abdomen. 

 Antennal club with a large swelling at base, followed by a marked coustric- 



tion I. palmeri Riley & Howard. 



Antennal club without especial basal enlargement and without constriction. 



/. montserratensis Riley & Howard. 



Adult Females.* 



Body furnished with many very long, glassy, brittle filaments, each arising from a 

 cylindrical lipped pore. 



Egg-sac with strong longitudinal flutings /. pnrchasi Maskell. 



Egg-sac smooth I. seychellarum ( Westwood). 



Body without such glassy filaments. 



Border of body with a variable number of long curly tufts of wax. 



Egg-sac with strong longitudinar fluting ../. montserratensis Riley & Howard. 



Egg-sac with faint longitudinal flutings I. (egyptiacum (Douglas). 



Border of body with no long, curly waxy tufts. 



Egg-sac not formed /. rosm Riley & Howard. 



* I. palmeri is not included in this table, as the adult is not yet known. 



