Doctor Howard has determined as Arrhenophagus chionaspidis a. 

 parasite reared from material on which Hemichionaspis minor and 

 Saissetia nigra were present. 



Pinnaspis huxi (Bouche.). 



Collected on leaves of a tree epiphyte belonging to the family 

 Bromeliaceae at Mameyes; on Philodendron sp., Ciales; on "eo- 

 rozo" palm {Acrocomia media) and another palm (Areca lutescens} 

 at Rio Piedras. 



Leucaspis indica Mar. 



Collected on mango {Mangifera indica) at ]\Iayagiiez. 



Aspidiotus cyanophylii Sign. 

 On a blue gum (Eucalyptus sp.) at Naguabo. 



Aspidiotus destructor Sign. 



Apparently the first scale-insect recorded from Porto Rico, this 

 species is very common, especially on the undersides of the leaves 

 of coconut palms. It is often so abundant on the older leaves of 

 these palms that they turn yellow and die. It was first recorded 

 in the Canadian Entomologist for 1895, page 261, by Mr. T. D. A. 

 Cockerell, the specimens having been collected in San Juan by Mr. 

 J. D, Hall. Mr. Busck took it ''on banana leaves" at ''Catana," 

 and on the same host at San Juan and Arroyo. (2-93.) Mr. Bar- 

 rett in 1904 stated that at Ponce many of the coconut trees were 

 ''dead or dying from attacks" of this coccid. (1-447.) 



Mr. Van Dine collected Aspidiotus destructor from coconut palm 

 (Cocos nucifera) at Santurce, and it has further been collected as 

 follows: On silk oak (Grevillea rohusta), on guava or "guayaba" 

 (Psidium guajava), on 3Iusa paradisiaca var., Rio Piedras ; on alli- 

 gator pear or "aguacate" {Persea gratissima), Mameyes and Gua- , 

 yama; alligator apple (Anona palustris) and Mammea americanay. 

 Rio Piedras; and on date palm (Phoenix ductylifera) , Mayagiiez. 



Dr. Howard has examined a parasite reared from this scale by 

 the writer and states that it "is apparently my Aphcdinus diaspidis."' 



Aspidiotus forhesi Johnson. 



Listed b}'- Mrs. Fernald as occurring in Porto Rico and fifteen 

 food-plants are given for the species in the countries where it is; 



11 



