60 
CALIFORNIA CITRUS CULTURE. 
PREDACEOUS INSECTS PREYING UPON CITRUS PESTS. 
Predator 
LACEWINGS. 
Brown lacewing (Sympherobius angus- 
tus Bks.) 
Green lacewing 
Coy.) 
Tlemerobius pacificus Bks,-~---------- 
(Chrysopa californica 
LADYBIRD BEETLES. 
Hippodamia convergens Guer, ~~~ --- 
Two-stabbed Jadybird beetle (Chiloco- 
rus bivulnerus Mauls.) 
Steel-blue ladybird (Orcus 
Boisd.) 
Avion plagiatus Oliy.-- ~~ --------- ne 
Latow pitatit. Mus, 222 s=ceeeetoe 
Harochomus californicus Casey ——----- 
Cruptogonus orbiculus Schon._—~~------ ; 
Cryptolamus monutrousicri: Muls. ~~~ 
Hypcraspis latcralis Muls._-__-_------- 
Seymnus sordidus Horn...-..---.--=< 
chalybeus 
Neymnus guttulatus Lee, ---------- ~~ 
Neymnus nebulosus Lee. -- 
Neymnus marginicollis Mann.__ 
Nicthorus vagans Blackb,__~~__~ = 
Vedalia (Novius cardinalis Muls.)——~~ 
Novius kebelei Olliff.----..-_-------- 
Black ladybird (Rhizobius ventralis 
Er.) 
SYRPHID FLIES. 
Large syrphid (Lasiophthicus pyrastri 
Linn.) 
American syrphid (Syrphus americana 
Wied.) 
Small syrphid (Allograpta obliqua Say) 
Pest preyed upon 
Moenly 
bugs, mites. 
Mealy bugs, plant lice, mites. 
Mites, 
Plant 
Scale 
lice, young scale insects. 
insects. 
Scale insects. 
Scale insects. 
Scale insects. 
Scale insects, plant lice, 
Mealy bugs. 
Mealy bugs. 
Mealy bugs 
Plant lice, 
scales, 
Mealy bugs. 
Mealy bugs, plant lice. 
Scale insects and plant lice. 
Mites. 
Cottony cushion scale. 
Cottony cushion seale. 
Black scale, mealy bugs. 
and other seale insects, 
mealy Dues, young armored 
Plant lice. 
Plant lice. 
Plant lice. 
