PRESENT STATUS OE INTRODUCED PARASITES. 
309 
Chalcis flavipes Panz. 
First received in 1905. Colonized in 1908 and 1909 but in unsatisfactory numbers. 
Recovered from immediate vicinity of colony site in 1909. Not recovered in 1910. 
Establishment doubtful on account of small colony. 
PREDACEOUS BEETLES. 
Caosoma sycophant a L. 
First received in 1906. Colonized same year. Recovered from immediate vicinity 
of colony sits; in 1907. Found generally distributed over limited area in 1909. Firmly 
established and increasing and dispersing rapidly. 
PARASITES OF T11F BROWX-TAIL MOTH. 
PARASITES OF THE EGG. 
TliK IIOfiRAMMA Spp. 
Fir^t received in 1900. Colonized in 1907; more satisfactorily in 1909. Recovered 
from immediate vicinity of colony site in 1909. Not recovered in 1910. Establish- 
ment probable, but the species of no importance as a parasite. 
TeLKNOMI S I'HALSN'ARUM NeeS. 
First received in 1906 and colonized satisfactorily in 1907. No attempts toward 
recovery since made. Establishment hoped for. Not an important parasite. 
PARASITES ATTACKING HIBERNATING CATERPILLARS. 
Ptekom Al.i s BGRXGIUS I'orsl. 
Received first in l!>0li. Colonized in lari^e numbers that year and in 1907 but much 
more satisfactorily in 1 90S. Recovered from immediate vicinit y of colony site in 1909. 
Not recovered in 1910. I'miml to 1"' generally distributed over very extended terri- 
tory in 1911. 1 Apparently well established. 
Apanteles lactkk OI.OK \ 'ier. 
Received first in 1906. Colonized in 1907. Satisfactorily colonized in 1908. Re- 
covered in immediate vicinity of colony site in 1909. (ionerally distributed over 
considerable area in 1910. Apparently firmly established. 
Meteorus VERSICOLOR Wesin. 
First received in L906. Colonized satisfactorily in 1908. Recovered in immediate 
vicinity of colony site in 1909. Generally distributed over limited area in 1910. 
Apparently firndy established. 
Zyoohothria nidicola Towns. 
First received in 1900. Colonized unsatisfactorily only in 1906-7, but notwith- 
standing was recovered in 1910 over a considerable territory. Apparently firmly 
established. 
TACHINID PARASITES OF LARGER CATERPILLARS . 
Compsilura concinnata Meig. (See Gipsy-moth Parasites.) 
Tachina larvarum L. (See Gipsy-moth Parasites.) 
Dexodes nigripes Fall. 
First received in 1900 and colonized satisfactorily in 1906 and 1907. Still more 
satisfactorily colonized in 1909. Not recovered. Establishment hoped for. 
EUDOROMYIA MAGNICORNIS Zett. 
First received in 1906. Colonized in about the same numbers as Zygobothria nidicola 
in 1906 and 1907. Not recovered. Establishment doubtful on account of small size 
of colonies. 
i Winter of 1910-11. 
