188 SEVENTEENTH Report STATE ENTOMOLOGIST oF MINNESoTA—1918 
APHELINIDAE 
Antennae §-jointed; notauli distinct ; middle tibial spur moderately long; meso- 
sternal pleurae distinct. 
This large and useful family of parasites attacks many of the 
scale insects, among others, the San Jose scale, the Lecaniums, the 
cottony maple scale, the woolly aphis of the apple, cabbage aphis, 
and many other injurious forms. 
Aphelinus fuscipennis How., and A. mytilaspides both.attack the 
San Jose scale in California, the first named being quite abundant. 
ENCYRTIDAE 
Antennae 11-jointed, elbowed, scape large and rather long; pronotum small, fre- 
quently not visible in the middle. Second pair of legs long, saltatorial with a very 
long tibial spur. Hind wings never narrow, nor linear; ovipositor issuing far an- 
terior to tip of abdomen. 
Parasitic on oys- 
ter-shell scale, rose 
scale, maple “seale 
joint worm, Hessian 
fly, ladybird beetles. 
Bred from puparia of 
syrphid flies; found 
in caterpillars of vari- 
ous moths and butter- 
flies. Species have 
y been bred from cab- 
bage lice, from bag 
Vig. 71. Copidosoma gelechiae Howard. Feared from gall bata ungeeite JOU e 
on golden rod. in the egg sacks of 
spiders. They are also 
parasitic on eggs of certain species of butterflies, and on mealy bugs. 
(Timberlake Univ. of Calif. Bull. March 28, 1918.) 
Aphycus pulvinariae How. is a parasite of the maple scale and 
A. bruneus How., a parasite of the rose scale. A. flavus attacks the 
European fruit Lecanium in California. Chiloneurus dactylopii How. 
and Encyrtus inquisitor How. probably occur in all greenhouses where 
their host, Pseudococcus citri, is found. Encyrtes (Aphidencyrtes) 
aphidiphagus Ashm. attacks the cabbage aphis. Copidosoma gelechiae 
How. occurs in Minnesota, its host being Grorimoschema gallae-solida- 
ginis. 
