12 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 93 



setts 18, Connecticut 2, New York 2, New Jersey 4, Indiana 1, Idaho 1, 

 South Dakota 1, Wisconsin 1, Oregon 2, Washington 1. Published 

 and unpublished records not duplicated above: Massachusetts 1 

 (Aldrich): Connecticut (Britton) ; New York 13 (West), 1 (Coquil- 

 lett) ; New Jersey -2 (Smith). 1 (Weiss) ; Pennsylvania (Sehaffner and 

 Griswold) ; North Carolina (Brimley) ; Illinois (Coquillett) ; Cali- 

 fornia (Coquillett, Essig) ; Quebec (Winn and Beaulieu) ; Ontario 

 (Gibson, Tothill, and Winn and Beaulieu); British Columbia 

 (Currie). 



Type. — Museum of Comparative Zoology, Cambridge, Mass. 



Hosts.' 12 — Vanessa atalanta (Linnaeus) 303, Enn&mos subsignarius 

 (Hiibner) 142, Malacosoma americana (Fabricius) 9, Vanessa spp. 7, 

 Malacosoma disstria Hiibner 2, Euchaetias egle (Drury) 2, Nymphalis 

 milberti (Godart) 2, Sarrothripus revayanus (Scopoli) 1, Nephelodes 

 emmedonia (Cramer) 1, Pyramta nubllalis (Hiibner) 1, Septis iva- 

 misformis (Guenee) 1. Published records not duplicated in the above 

 records: Vanessa atalanta (Linnaeus) (Harris and Scudder, John- 

 son), Vanessa cardui (Linnaeus) (Sehaffner and Griswold), Malaco- 

 soma disstria erosa form thoracica Stretch (Koebele), M. disstria 

 (Lintner), M. americana (Liu), Isia Isabella (Abbott and Smith) 

 (Tothill), Autographa calif ornica (Speyer) (Essig), Apantesis 

 phalerata (Harris) (Learned). 



Remarks. — The foregoing description was based on an examination 

 of the following material : 463 reared specimens bearing Gypsy Moth 

 Laboratory note numbers; 1 male from the Kiley collection reared 

 from Vanessa atalanta (Sprague) ; 1 male reared from Pyrausta nu- 

 bilalis (Craig) ; 1 male reared from Septis apamiformis, May 16, 1884; 

 1 male and 3 females reared from V. atalanta, Nos. 1181, 1181u, 

 and 1181y (Dimmock) ; 5 specimens bearing note numbers as follows: 

 1 male and 1 female 414° (Koebele), 1 female 568° (Koebele), 1 

 female 1936 (August 13), 1 female 1936 (2) 2341 (September 17); 5 

 males and 8 females (Riley, Walton, Gabrielson, Aldrich, Furniss, and 

 Fluke) ; and 55 additional miscellaneous collected specimens from the 

 GyP s y Moth Laboratory. 



Adults, May to September; number per host, one or two; genera- 

 tions two or more ; hibernation, larva in host pupa. Townsend pointed 

 out that Zenillia futilis lays microtype eggs on foliage, which are 

 swallowed by its hosts. 



3. ZENILLIA ANGUSTATA (Van dor Wulp), new combination 



Exorista anr/ustata Van der Wulp, Biologia Centrali-Americana, Diptera, vol. 2. 



p. 70, 1890-Coquillett, U. S. Dept. Agr., Div. Ent, Tech. Bull. 7, p. 99, 1S97. 

 ZenilMa coquittetti Aldbich and Webber, Proc. U. S. Nat. Mas., vol. 63, art. 17, 



pp. 11, 18, 1924. (New synonymy.) 



13 Under "Hosts" the numbers following the names of the hosts indicate the number of 

 specimens examined which were reared from that particular host. 



