CALIFORNIA CITRUS CULTURE. 63 
INTERNAL PARASITES PREYING UPON CITRUS PESTS. 
Parasite 
HYMENOPTEROUS. 
Aphidius testaceipes (Cress.)~~------- 
Charips xanthopsis (Ashm.)—~-------~- 
Comys fusca How.------------------ 
Encyrtus flavus How._--- 
Neutellista cyanea Motsch 
Chrysoplatycerus splendens How.__---- 
Cheiloneurus dactylopii How. -------- 
Tomocera californica How. ----------~ 
Aphycus flavus How._---------- 
Aphycus immaculatus How. _--------- 
Aspidiotiphagus citrinus Craw._-------~ 
Prospaltella aurantii How,_~---~~---- 
Signiphora occidentalis Tow. ~~ -_----- 
Aphelinus diaspidis How. ----------- 
Coccophagus lunulatus How,.--------- 
Coccophagus lecanii (Witch) --~------ 
Eupelmus mirabilis (Walsh) _~------- 
DIPTEROUS. 
Cryptochetum icerywr 
Leucopis bella Loew.__--------------- 
Pest preyed upon 
Citrus aphids. 
Black citrus louse. 
Frosted scale. 
Soft brown scale. 
Black and hemispherical scales. 
Mealy bug. 
Mealy bug. 
Black scale. 
Soft brown scale. 
Red scale. 
Red, yellow, purple scales. 
Yellow and purple scales. 
Yellow scale. 
Red scale. 
Red scale. 
Soft brown scale. 
Eggs of katydid. 
Cottony cushion scale, 
Mealy bugs. 
FIs. he. 
citrinus Craw. 
42.—The purple scale parasite, Aspidiotiphagus 
(After Howard.) 
