A STUDY OF COMPSILURA 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. AII 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 Paldarktischen Dipteren” and from the Bibliography. 
Abraxas grossulariata I. Euproctis chrysorrhoea F.. Porthesia similis Yussl. 
Acronycta aceris L. Heteromorpha  caeruleoce- Melalopha anachoreta Fab. 
Acronycta alni L. phata I. Pyrameis atalanta L. 
Acronycta cuspis Hiibn. ITyloicus pinastri L. Smerinthus populi lL. 
Acronycta megacephala F. Libytha celtis Laich. Spilosoma lubricipeda i. 
Acronycta rumicis L. Macrothylacia rubi L. Stauropus fagi L. 
Acronycta tridens Schiff, Mamestra brassicae L. Stilpnotia salicis Lh. 
Araschinia levana L. Mamestra oleracea i. Taeniocampa stabilis View. 
Araschinia prorsa LL. Mamestra persicariae L. Thaumetopoea processicnea lL. 
Arctia caja L. _ Malacosoma neustria W. Thawmetopoea pityocampa 
Attacus cynthia UL. Oeonistis quadra L. Schiff. 
Catocala promissa Esp. Papilio machaon L. Timandra amata L. 
Cimber humeralis Fourer. Phalera bucephala WL. Trichiocampus viminalis Fall. 
Craniophora ligustri Fab. Pieris brassicae U. Trachea atriplicis \, 
Cucullia lactucae Esp. Plusia festucae L. Vanessa antiopa L. 
Acronycta verbasci L. Plusia gamma UL. Vanessa io I. 
Dasychira pudibunda I. Poecilocampa populi L. Vanessa polychloras 1. 
Dilina tiliae L. Pontia rapae lL. Vanessa urticae I. 
Dipterygia scabriuscula L. Porthetria dispar UW. Vanessa xcanthomclas Esp. 
Drymonia ruficornis Hiibn. Porthetria monacha UL. Yponomeuta padella L. 
The following is the American host list: 
TasLe Il.—American hosts of Compsilura concinnata. 
Apatela hasta Guen. Hyphantria cunea Dru. Philegethontius quinquemacu- 
Arctiid sp. Malacosoma americana Fab. lata Haw. | 
Autographa brassicae Riley. Malacosoma disstria Hiibn. Rhodophora florida Guen. 
Callosamia promethea Dru, Mamestra adjuncta Boisd. (By Reiff, at Forest Hills, 
Cirphis unipuncta Haw. Mamestra picta Yarris. Sept. 8, 1913.) 
Cimbex americana Leach. Melalopha inclusa Hiibn. Schizura concinna S. & A. 
Deilephila gallii Rott. Noctuid sp. Vanessa antiopa lL. 
Diacrisia virginica Fab. Notodontid sp. Vanessa atalanta UL. 
Deidamia inscripta Harris. Notolophus antiqua UL. Vanessa huntera Fab. 
Ennomos subsignarius Hiibn. Papilio polyxenes Fab. Xylina sp. Ochs. 
Estigmene acraea Dru. Plusiodonta  compressipalpis 
Huchaetias egle Dru. Guen. (By Reiff, at Forest 
Geometrid sp. Hills, April 7, 1913.) 
Hemerocampa leucostigma S. Pontia rapae lL. 
& A. 
1 This covers all records, including those of the year 1916. 
