THE MONTHLY BULLETIN. 583 



detected and caused to be destroyed upon orchids entering the port of 

 San Francisco, contains the names of a great number that are well 

 known tree pests in different parts of the world : 



The following list contains all the species listed by Cockerell as 

 attacking orchids, excepting seven. It also contains ten species not 

 listed by the same author : 



Scale pest. Habitat. 



Conchaspis sps. •— Mexico 



Asterolecaniitm epidendri South America 



Ceroputo and Pulvinaria sps. South America 



Vinsonia stellifera Mexico 



Eucalymanatus perforatus England 



Coccus acuminatiis Hawaiian Islands 



Saissetia hemisphwrica Mexico 



Diaspis boisduvalii South America and England 



Diaspis cattleyw England 



Diaspis echinocacti South America 



Hemichionaspis aspidistrw England 



Hemichionaspis sps. Manila 



Fiorinta sps. Manila 



Aspidiotus cyanophylli Mexico 



Aspidiotus Jiederw Conservatory, Golden Gate Park. San Francisco 



Chrysomphalus alientis London 



Chrysomphahis aonidum Conservatory, Golden Gate Park, San Francisco 



Chrysomphalvs Uformis South America 



Chrysomphalus hiformis cattleyw Jamaica 



Chrysomphalus dictyospermi var. arecw Golden Gate Park, San Francisco 



Lepidosaphes cocculi Manila 



Lepidosaphes pallida Java 



Lepidosaphes sps. South America 



Parlatoria mangiferoe Singapore 



Parlatoria pergandii Consei-\'atory, Golden Gate Park, San Francisco 



Parlatoria proteus Orient 



Parlatoria sps. Manila 



Parlatoria pseudaspidiotiis Recorded in India 



The following seven species listed by Cockerell have not been taken so 

 far at the port of San Francisco : 



Conchaspis angrwci. 

 Asterolecaniitm an reu m . 

 Pulvinaria {hrassiw) floccifera. 

 Ctenochiton elongatus. 

 Coccus hesperidum. 

 Fiorinia stricta. 

 Lepidosaphes pinnwformis. 



The working out and identifying of the foregoing material was a 

 task of some magnitude, considering that all of it had to be done during 

 the rare intervals that have occurred in the regular routine work of the 

 quarantine service ; but the series of splendid specimens that this work 

 has added to the State collection amply justified the effort. 



