10 
PARASITES OF GIPSY AND BROWN-TAIL MOTHS. 
.Tage. 
Plate XVI. View of out-of-door insectary used for rearing predaceous 
beetles in 1910 204 
XVII. Fig. 1. — Wire-screen cages used in tachinid reproduction work 
in 1909. Fig. 2. — Cylindrical wire-screen cages used in 
**- tachinid reproduction work in 1910 204 
XVIII. Fig. 1. — Blepharipa scutellata: Full-grown larva from gipsy- 
moth pupa. Fig. 2. — Blepharipa scutellata: Puparia 216 
XIX. Fig. 1. — Importation of gipsy-moth caterpillars from France in 
1909; en route to laboratory at Melrose Highlands, Mass. 
Fig. 2. — Importation of gipsy-moth caterpillars from France 
in 1909; receipt at laboratory, Melrose Highlands, Mass 216 
XX. Fig. 1. — Compsilura concinnata: Puparia. Fig. 2. — Tachina 
larvarum: Puparia. Fig. 3. — Sarcophaga sp.: Puparia. Fig. 
4. — Parexoristacheloni.de: Puparia 220 
XXI. Fig. 1.— View of laboratory interior, showing cages in use for 
rearing parasites from hibernating webs of the brown-tail 
moth in 1910-11. Fig. 2. — Sifting gipsy-moth egg masses 
for examination as to percentage of parasitism 244 
XXII. Map showing sections of its range in New England from which 
Monodontomerus sereus has been collected in hibernating 
webs of the brown-tail moth, and subsequently reared 248 
XXIII. Map showing distribution of Monodontomerus sereus in New 
England 248 
XXIV. Map showing dispersion of Calosoma sycophanta in Massachu- 
setts from liberated colonies 256 
XXV. Map showing distribution of Pteromalus egregius in New 
England 276 
XXVI. Fig. 1. — Riley rearing cages as used at the gipsy-moth parasite 
laboratory. Fig. 2. — Interior of one of the laboratory struc- 
tures, showing trays used in rearing Apanteles lacteicolor in 
the spring of 1909 280 
XXVII. View of laboratory interior, showing cages in use for rearing 
parasites from hibernating webs of the brown-tail moth in 
the spring of 1908 280 
XXVIII. Fig. 1.— Cocoons of Apanteles lacteicolor in molting webs of the 
brown-tail moth. Fig. 2. — View of laboratory yard, showing 
various temporary structures, rearing cages, etc 284 
TEXT FIGURES. 
Fig. 1. Polygnotus hiemalis, a parasite of the Hessian fly 21 
2. Polygnotus hiemalis: Adults which have developed within the "flax- 
seed" of the Hessian fly and are ready to emerge 21 
3. Lysiphlebus tritici attacking a grain aphis 22 
4. The Australian ladybird (Novius cardinalis), an imported enemy of the 
Huicd scale: Larvae, pupa, adult, work against scales 23 
5. Rhizobius ventralis, an imported enemy of the black scale: Adult , larva . 31 
6. Scutellista cyanea, an imported parasite of the black scale 32 
7. I'rdiculoidrs rentricosus 34 
8. Krastria sritula, an imported enemy of the black scale: Adult, larva?, 
pupa 34 
9. The Asiatic ladybird ( Chilocorus si mil is), an imported enemy of the Sail 
Jose scale: Later larval stages, pupa, adults 37 
L0. Hearing cage !'<»r tachinid parasites of the brown-tail moth 151 
