310 



PARAS1TKS OF GIPSY AND BROWN-TAIL MOTHS. 



Pales p avid a Meig. 



Status same as that of Eudoromyia. 

 Parexorista chelonus 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 OF THE PUPJE. 



PlMPLA EXAMINATOR Fab. 

 PlMPLA 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 jereus 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 kuvanse How. ... 1, 061, 111 

 3 Pteromalus egregius 



Forst 354, 300 



AnastatusbifasciatusFonsc. 177, 210 



Trichogramma spp 76, 000 



Apanteles fulvipes Hal 57, 700 



Apanteles lacteicolor Vier. ' 44, 310 

 Monodontomerus sereus 



Walk 15,325 



Telenomus phalxnarum 



Nees 4,650 



Meteorus versicolor Wesm . 3,113 



Pimpla spp 583 



Chalois spp 338 



1, 794, 640 



Tachinid Parasites. 



Carcelia gnava Meig 15, 581 



2 Tricholyga grandis Zett. . 8, 721 



2 Zygobothria gilva Hartig . 7, 502 

 2 Compsilura concinnata 



Meig 6, 777 



2 Dexodes nigripes Fall .... 5, 040 

 2 Blepharipa scutellata 



R. D 5,109 



Parexorista chelonix Rond . 5, 026 



2 Tachina larvarum L 2, 036 



linid Parasites— Con. 





Parasetigena segregata 





Rond 



1,187 



4 Crossocosmia sericarise 





Corn 



699 



2 Pales pavida Meig 



476 



Tachina japonica Towns . . 



471 



2 Zenillia libatrix Panz 



161 



2 Zygobothria nidicola 





Towns 



109 



Masicera sylvatica Fall 



23 



2 Eudoromyia magnicornis 





Zett 



5 



1 Unclassified t a c h i n i d s 





(1906-07) 



9,420 



68, 343 



Predatory beetles. 



Calosoma sycophanta L . . . 



Carabus auratus L 



Calosoma inquisitor L 



Carabus arvensis Hbst 



Carabus nemoralis Mull. . . 

 Calosoma reticulatum Fab . 

 Carabus violaceus L 



17,742 

 478 

 262 

 108 

 100 

 83 

 62 



18, 835 



Total 1,881,818 



1 Including species marked ( 2 ). 



2 Species which are also included under "unclassified (aehinids." 



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



4 Including also C. flavoscuteUata. 



