310 



PARASITES OF GIPSY AND BROWN-TAIL MOTHS. 



Pales pavida Meig. 



Status same as that of Eudoromyia. 

 Parexorista chelonle Rond. 



Received first in 1906. Colonized very unsatisfactorily in 1907 and satisfactorily in 

 1908. Recovered in immediate vicinity of colony site in 1908 and in larger numbers 

 in 1909. Not recovered in 1910. Establishment very doubtful on account of hybridi- 

 zation with American race. 



PARASITES OP THE PUP^E. 



PlMPLA EXAMINATOR Fab. 



Pimpla instigator Fab. 



First received in 1906 and colonized in 1906 and 1907 unsatisfactorily. Establish- 

 ment doubtful. Of better promise as parasites on account of great similarity to 

 American species. 

 Monodontomerus ^reus Walk. (See Gipsy-moth Parasites.) 



The gross number of each of the various species which have been 

 colonized since the beginning of the work up to and including the 

 season of 1910 is given in the accompanying tabulated statement: 



Hymenopterous Parasites. 



Schedius kuvanx How. ... 1, 061, 111 

 3 P leromalus egregius 



Forst 354,300 



AnastatusbifascialusFoji.sc. 177, 210 



Trichogramma spp 76, 000 



Apanteles fulvipes Hal 57, 700 



Apanteles lacteicolor Vier. 44,310 

 Monodontomerus xreus 



Walk 15,325 



Telenomus phalxnarum 



Nees 4,650 



Meteorus versicolor Wesm. 3, 113 



Pimpla spp 583 



Chalcix spp 338 



1, 794, 640 



Tachinid Parasites. 



Carcelia gnava Meig 



2 Tricholyga grandis Zett. . 

 2 Zygobothria gilva Hartig. 

 2 Compsilura concinnata 



Meig 



2 Dexodes nigripes Fall .... 

 2 Blepharipa scutellata 



R. D 



Parexorista chelonix Rond . 

 2 Tachina larvarum L 



15, 581 



8,721 

 7, 502 



6,777 

 5,040 



Tachinid Parasites — Con. 





Parasetigena segregata 





Rond 



1,187 



4 Crossocosmia sericarix 





Corn 



699 



2 Pales pavida Meig 



476 



Tachina japonica Towns . . 



471 



2 Zenillia libatrix Panz 



161 



2 Zygobothria nidi co la 





Towns 



109 



Masicera silvatica Fa'l 



23 



2 Eudoromyia magnicornis 





Zett 



5 



1 Unclassified tachinids 





(1906-07) 



9,420 



68, 343 



Predatory beetles. 



Calosoma sycophanta L. . . 17, 742 



Carabus auratus L 478 



Calosoma inquisitor L 262 



Carabus arvensis Hbst 108 



Carabus nemoralis Mull. . . 100 



Calosoma reticulatum Fab . 83 



Carabus violaceus L 62 



Total 1,881,818 



5,109 

 5,026 

 2,036 



1 Including species marked ( 2 ). 



2 Species which are also included under "unclassified tachinids." 



3 Does not include progeny of 114,000 individuals liberated in 1908. 

 « Including also C. flavoscutdlata. 



18, 835 



