ZENILLIA AND ALLIED GENERA — SELLERS 67 



Length 8 mm. 



The paratype material differs as follows from the descriptions: 

 Front of male from 0.20 to 0.24 but usually 0.22, female from 0.24 to 

 0.26 ; frontal bristles from 8 to 13 but usually 10 or 11 in male, from 

 5 to 8 but usually 6 or 7 in female; male usually with 3 reclinate up- 

 per f rentals; facial ridge bristly on lowest one-fifth; third joint of 

 antenna from three and one-half to four times second. Wing with 

 from 1 to 3 bristles at base of third vein but usually 2- 



Length 5.5 to 8 mm. 



Type and allotype locality. — Trenton, N. J. 



Distribution. — Maine 2, Massachusetts 4, Connecticut 1, New York 

 3. New Jersey 2. 



Type.— Made, U.S.N.M. No. 54151. 



Hosts. — Hemerocampa leucostigma (Abbot and Smith) 26; Olene 

 plagiata (Walker) 1. 



Remarks. — Material examined consisted of the following reared 

 specimens bearing Gypsy Moth Laboratory note numbers : Type and 

 allotype, No. 11718 N3i; three male paratypes, 11718 N3i; one male 

 paratype, Trenton, N. J., No. H7l8Rlh; three male paratypes", Brook- 

 lyn, N. Y., Nos. 11718 Kid, 11718 Kl and 21, 11718 Nlj ; one female 

 paratype, Trenton, N. J., No. 11718 N3j ; two female paratypes, 

 Brooklyn, N. Y., No. 11718 A3; one female paratype, Brooklyn, 

 N. Y., No. 11718 Nlo; one female paratype, Somerville, N. J., No. 

 11718 H7; one female paratype, Everett, Mass., No. 12108 LI; one 

 female paratype, Berlin, Conn., No. 12108 R5 ; nine reared specimens 

 bearing Gypsy Moth Laboratory note numbers; one male, 205 429 

 April 14, 1896; one female G. M. L. 2603C, May 16, 1910. 



Although the writer can readily separate this species from Car- 

 celia amplexa on characters that have proved specific elsewhere in 

 the genus Carcelia, he is perplexed by the coincidence that practically 

 all the specimens of both series have been reared from the common 

 host Hemerocampa leucostigma. As both species were previously 

 considered one, it is perhaps desirable to cite this common host relation- 

 ship. Subsequent material may indicate even more divergent lines of 

 host selection. 



Adults, May to July ; number per host, one to several ; generations, 

 one; hibernation, in the puparium. 



14. CARCELIA OLENENSIS. new species 



Zenillia amplexa of Aldrich and Webber (nee Coquillett), partim, Proc. U. S. 



Nat. Mus., vol. 63, art. 17, pp. 13-14, 1924. 

 Zenillia n. sp. (2), partim, Schafener and Griswold, TJ. S. Dept. Agr. Misc. Publ. 



188, p. 113, 1934. 



This species can be easily confused with Carcelia perplexa. 



