392 



THE GYPSY MOTH. 



Many of the names are taken from a list furnished me hy 

 Dr. S. ^y. Williston : — 



Exorista lucorum Meig. 

 Exorista (Myxexorista) libatrix 

 Panz. 



Exorista erythrostoma Hrtg. 

 Parexorista sussurans Kond. 

 Meigenia bisignata Schin. 

 Tachina bella Meig. 

 Tachina pinivora Katz. 

 Tachina larvincola Ratz. 

 Tacliina monacha Ratz. 

 Tachina noctuarum R. D. 

 Tachina quinquevitala Hrtg. 

 Tachina rustica Fall. 

 Tachina larvicola Hrtg. (?) 



Tachina moreti R. D. 

 Tachina (Echinom34a) conjugata 

 Roud. 



Tacliina (Echinomyia) fera L. 

 Tachina biraaculata Hrtg. 

 Eutachina larvarum L. 

 Phorocera concinuata Meig. = M. 



serrieventris Rond. (?) 

 Sarcophaga affinis Fall. 

 Thelymorpha vertiginosa Fall. 

 Argyrophylax gilva Hrtg. 

 Parasitigena segregata Rond. 

 Machar£ea serriventris Rond. 

 Chjfitomyia crassiseta Rond. 



It ^yill he observed that the single species of Tachinidce 

 thus far known to infest Porthetria disj)ar, in North 

 America, belongs to a different genus, or sub-genus, from 

 any in the above list, all of which are Tachinids except one. 

 It will be of interest to determine the earlier or normal host 

 of Aclimtoneura fernaldi, 



Predaceous Diptera. 

 Of the predaceous Diptera the following species have 

 been taken feeding upon the imagoes of the gypsy moth : 

 Pasyllis sacrator Walk., attacking the females while laying ; 

 Asilus sericeus Say, capturing the male imagoes on the 

 wing. 



Predaceous Hemijptera Heteroptem. 

 The following account of the predaceous Hemiptera Heter- 

 optera, known to feed on the gypsy moth, has been prepared 

 for this report by A. H. Kirkland, B.Sc, assistant entomol- 

 ogist. 



An important factor in the destruction of the gypsy moth 

 caterpillars is the aid rendered by several species of pre- 

 daceous bugs, which, in badly infested localities, attack the 

 caterpillars in considerable numbers, and in some places 

 apparently feed upon them in preference to any other kinds 

 of Lepidopterous larv?e. The predaceous bugs thus far found 

 feeding upon the gypsy moth are Podisus cynicus (Say), 



