A STUDY OF GOMPSILURA CONCINNATA. 5 
HOSTS, EUROPEAN AND AMERICAN. 
This parasite attacks a large number of both nocturnal and diurnal 
hosts in Europe, the host list comprising 58 different species. In the 
United States it does not attack so many, probably due to its recent 
importation to this country. In time the host list for Compsilura 
in the United States will, no doubt, surpass that in Europe, for within 
the few years it has been established in New England a host list com- 
prising 33 species already has been compiled,’ and undoubtedly it 
attacks more than are known at the present time. All of the records 
given in the list of native hosts of Compsilura were secured at the 
gipsy moth parasite laboratory, Melrose Highlands, Mass. In a few 
instances these records have been duplicated by investigators at other 
places. 
Table I gives the European host list. 
TABLE I—Foreign hosts of Compsilura concinnata; records from the “ Katalog 
der Paléarktischen Dipteren” and from the Bibliography. 
Abrazas grossulariata L, 
Acronycta aceris L. 
Acronycta alni L. 
Acronycta cuspis Hiibn. 
Acronycta megacephala F. 
Acronycta rumicis L. 
Acronycta tridens Schiff. 
Araschinia levana L. 
Araschinia prorsa L. 
Arctia caja L. 
Attacus cynthia L. 
Catocala promissa Esp. 
Cimber humeralis Fourcr. 
Craniophora ligustri Fab. 
Cucullia lactucae Esp. 
Acronycta verbasci L. 
Dasychira pudibunda L. 
Dilina tiliae UL. 
Dipterygia scabriuscula L. 
Drymonia ruficornis Hiibn. 
Huproctis chrysorrhoea 1. 
Heteromorpha 
phala L. 
IHyloicus pinastri L. 
Libytha celtis Laich. 
Macrothylacia rubi L. 
Mamestra brassicae L. 
Mamestra oleracea L. 
Mamestra persicariae lL. 
Matacosoma neustria 1. 
Oconistis quadra L. 
Papilio machaon I. 
Phalera bucephala L. 
Pieris brassicae L. 
Plusia festucae L. 
Plusia gamma UL. 
Poecilocampa populi L. 
Pontia rapae L. 
Porthetria dispar L. 
Porthetria monacha Tu. 
The following is the American host list: 
caeruleoce- 
Porthesia sinilis Fussl. 
Melalopha anachoreta Fab. 
Pyrameis atalanta L. 
Smerinthus populi L. 
Spilosoma lubricipeda I. 
Stauropus fagi L. 
Stilpnotia salicis L. 
Taeniocampa stabilis View. 
Thaumetopoea. processionea i. 
Thaumetopoea pityocampa 
Schiff. ; 
Timandra amata lL. 
Trichiocampus viminalis Wall. 
Trachea atriplicis lL, 
Vanessa antiopa L. 
Vanessa to L. 
Vanessa polychloras U. 
Vanessa urticae I. 
Vanessa xanthomelas Esp. 
Yponomeuta padella I. 
TapLe Il.—American hosts of Coimpsilura concinnata. 
Apateia hasta Guen. 
Arctiid sp. 
Autographa brassicae Miley. 
Callosamia promethea Dru. 
Cirphis unipuncta Vaw. 
Cimbex americana Leach, 
Deéilephita gallii Rott. 
Disacrisia virginica Wab. 
Deidamia inscripta Warris. 
Bnnomos subsignarius VWiibn 
Eatigmene acraea Dru. 
Buchactias egle Dru. 
Geometrid sp. 
Hemerocampa leucostigma §. 
& A. 
Hyphantria cunea Dru. 
Malacosoma americana Fab. 
Malacosoma disstria VWiibn. 
Mamesira adjuncta Poisd. 
Mamestra picta Warris. 
Melalopha inclusa MWiibn. 
Noctuid sp. 
Notodontid sp. 
Notolophus antiqua I. 
. Papilio polyrenes VWab. 
compressipalpis 
(By Reiff, at Forest 
Plusiodonta 
Guen. 
Hills, April 7, 1913.) 
Pontia rapae L. 
This covers all records, including those of the year 1916. 
Philegethontius quinquemacu- 
lata Taw. 
Rhodophora florida Guen. 
(By Reiff, at Forest ITills, 
Sept. 8, 1913.) 
Schizura concinna §. & A. 
Vanessa antiopa I. 
Vanessa atalanta W. 
Vanessa huntera Fab. 
Xylina sp. Ochs. 
