10 
PLATE 
XVII. 
OVLET: 
XXI. 
» O08 
XXIII. 
XXIV. 
XXV. 
XXVI. 
XXVII. 
XXVIII. 
) Rice taed le, 
XVI. 
. Fig. 1.—Compsilura concinnata: Puparia. 
PARASITES OF GIPSY AND BROWN-TAIL MOTHS. 
View of out-of-door insectary used for rearing predaceous 
beetiles.in 1910. - 6 222 ce Sh 
Fig. 1.—Wire-screen cages used in tachinid reproduction work 
in 1909. Fig. 2.—Cylindrical wire-screen cages used in 
tachinid, reproduction swore im) 1010228) ee eee 
Fig. 1.—Blepharipa scutellata: Full-grown larva from gipsy- 
moth pupa. Fig. 2.—Blepharipa scutellata: Puparia......-.- 
. 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..... 
Fig. 2.—Tachina 
larvarum: Puparia. Fig. 3.—Sarcophaga sp.: Puparia. Fig. 
4..—Porenorista chelonte: Pupariaie soe. a eee 
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......../:-.---- 
Map showing sections of its range in New England from which 
Monodontomerus xreus has been collected in hibernating 
webs of the brown-tail moth, and subsequently reared... ... 
Map showing distribution of Monodontomerus xreus in New 
Eneland © 5 3.225 28 SA ee 
Map showing dispersion of Calosoma sycophanta in Massachu- 
setts from liberated coldmivs: = 225s. sae eee 
Map showing distribution of Pteromalus egregius in New 
Eine lamd'si. 2.2 25s he = gee ee ey oe 
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°ot 1909. <2. = Peas eae tet ee ek ee ee eee 
View of laboratory interior, showing cages in use for rearing 
parasites from hibernating webs of the brown-tail moth in 
the: spring of 1908.22 2. se ee eae eee 
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......-.---- 
TEXT FIGURES. 
Polygnotus hiemalis, a parasite of the Hessian fly.......-.-....------- 
2. Polygnotus hiemalis: Adults which have developed within the ‘‘flax- 
seed” of the Hessian fly and are ready to emerge 
3) Lysvphiebus tritie: attackine=a grain aphig= eames ese sere. n= eae 
Na 
The Australian ladybird (Novius cardinalis), an imported enemy of the 
fluted scale: Larva, pupa, adult, work against scales. ..........-...- 
ST) O35) (OX 
Rhizobius ventralis, an imported enemy of the black scale: Adult, larva. 
Scutellista cyanea, an imported parasite of the black scale............-- 
'‘Pedieuloides ventricosus 2. 25 22 eee ee 
8. Erastria scitula, an imported enemy of the black scale: Adult, larve, 
pupa. 
9. The Asiatic ladybird (Chilocorus similis), an imported enemy of the San 
Josescale: Later larvalistages, pupa, adits eer see ee eet 
10. 
Rearing cage for tachinid parasites of the brown-tail moth......-.----- 
216 
220 
244 
248 
248 
256 
276 
280 
280 
284 
