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172
Journal of the Lepidopterists' Society
this butterfly is Phyciodes pulchellus (Boisduval, 1852) by virtue of the provisions of the Code, including gender congruence.
Literature Cited
Bird, C. D., G. J. Hilchie, N. G. Kondla, E. M. Pike & F. A. H. Sperling. 1995. Alberta Butterflies. The Provineia] Museum of Alberta, Edmonton, Alberta. 349 pp.
Boisduval, J. B. A. D. de. 1852. Lepidopteres de la Californie. Annales Societe Entomologique France 10:275-324.
DRURY, D. 1770. Illustrations of natural history, wherein are exhibited upwards of two hundred and forty figures of exotic Insects ... to which is added a translation in French. London, White Lxxviii + 130 + [2] pp., 50 + 1 pis, 4 f.
Emmel, J. E, T. C. Emmel & S. O. Mattoon. 1998. The types of California butterflies names by Jean Alphonse Boisduval designation of lectotypes and a neotype, and fixation of type localities. Pp. 3-76 Jn T C. Emmel (ed.), Systematics of Western North American Butterflies. Mariposa Press, Gainesville, Florida. 878 pp
Guppy, C. S. & J. H. Shepard. 2001. Butterflies of British Columbia. UBC Press, Vancouver. 414 pp.
Hedya salicella (L.) is a trans-Palaearctic species whose larvae feed in spun shoots and folded leaves of Salix and Populus species (Salicaceae). The five North American specimens reported here were in three different collections, two public and one private. The distinctive forewing and genitalia of these specimens (Figs. 1, 2) match illustrations and adult sizes in Bentinck & Diakonoff (1968), Bradley et al. (1979), and other handbooks on Eurasian Olethreutinae. They
International Commission on Zoological Nomenclature. 1999. International Code of Zoological Nomenclature, fourth edition. The Natural History Museum, London, UK. 126 pp.
Kirby, William. 1837. [Lepidoptera: Diurna.] Pp. 286-300, pis. 3,4, in Part 4, Insects. In Fauna Boreali-Americana or the zoology of the northern parts of British America, John Richardson. Josiah Fletcher, Norwich, England, v-xxxix + 325 pp. + cpl 1-8 + page i (errata).
Layberry, R. A., P. W. Hall & J. D. Lafontaine. 1998. The Butterflies of Canada. University of Toronto Press, Toronto, Ontario. 280.
Opler, P. A. 1999. A Field Guide to Western Butterflies. Houghton Mifflin Co., New York, New York. 540 pp.
Scott, J A. 1994. Biology and systematics of Phyciodes. Papilio (New Series) 7:1-120.
Norbert G. Kondla, Box 244, Genelle, British Columbia V0G 1G0 Canada, and Crispin S. Guppy, 4627 Quesnel-Hydraulic Road, Quesnel, BC V2J 6P8 Canada.
Received for publication 28 January 2002; revised and- accepted 10 May 2002.
also match three pinned adults of H. salicella from England and Germany that we examined.
The American specimens were collected over a 30-yr period at scattered localities: 1956 in Ontario, 1975 in Massachusetts, and 1985 in Newfoundland and Missouri. Such a diffuse temporal-geographic pattern provides little specific information about introduction and spread beyond the general conclusion that H. salicella is an immigrant in North America.
Journal of the Lepidopterists7 Society 56(3), 2002, 172-173
HEDYA SALICELLA (L.), A PALAEARCTIC SPECIES, COLLECTED IN NORTH AMERICA (TORTRICIDAE)
Additional key words: immigrant, Olethreutinae, Salix, Populus.
Figs. 1-2. Hedya salicella male from Atchison Co., Missouri. 1. Wings. 2. Genitalia (genit. slide MS 97199).
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The June-August adult recovery dates are similar to those reported in Eurasia (Bentinck & Diakonoff 1968, Bradley et al. 1979, Kuznetsov 1989), and suggests that H. salicella is bivoltine in North America. Details of wintering in Eurasia are unclear, but adult flight dates also suggest that the egg or partly grown
larva is the wintering stage.
Specimens examined. North America: Vittoria, ON, 13-VIII-
56, Freeman & Lewis, Canadian National Collection of Arthropods (CNC), Ottawa, ON; Cambridge, MA, 381 Walden St. at Concord Ave., 26-V1-75, R. Silberglied, at 15 w blacklight, male genit. slide WEM 911981, forewing length 9.0 mm, Museum of Comparative Zoology, Harvard, University, Cambridge, MA; 2 specimens, St. Johns, NF, reared VII-85, CNC; Brickyard Hill Wildlife Area, Atchison Co., MO, at blacklight, J. R. Heitzman, male genit. slide MS 97199, forewing length 9.0 mm, J. R. Heitzman collection, Independence, MO (Figs. 1 & 2). Europe: Derbyshire, England, 30-VI-25, H. C. Hayward, male genit. prep. WEM 291992, forewing length 9.5 mm; Mr. Kaiserstuhl, Baden-Wiirttemberg, Germany, 6-VII-53, E. Jackh, forewing length 10.0 mm; Capeila, Germany, 14-VII-42, Heddergott, male genit. prep. WEM 291991, forewing length 10.0 mm, all three in U. S. National Museum of Natural History, Smithsonian Institution, Washington, DC.
Journal of the Lepidopterists' Society 56(3), 2002, 173-176
Big sagebrush, Artemisia tridentata Nutt. (Aster-aceae), is widely documented as the exclusive host-plant for the sagebrush sheep moth, Hemileuca her a hera (Harris) (Ferguson 1971, McFarland 1974, Tuskes 1984, Stone 1991, Tuskes et al. 1996). In an investigation of insects in the upper Snake River Plain of southeastern Idaho, Stafford (1987) also found larvae of H. hera hera only on A. tridentata hosts, despite the presence of A. nova Nelson, A. arbuscula Nutt., and A. tripartita Rydb. at the study sites. The use of Artemisia species other than A. tridentata has been reported only by Collins (1974), who observed a small number of H. hera hera larvae on silver sagebrush, A. cana Pursh.
During a series of field surveys conducted to investigate the life history of H. hera hera in the same general area of southeastern Idaho studied by Stafford (1987), I commonly found larvae on A. tridentata ssp. wyomingensis (Beetle & Young). However, in one mixed-sagebrush community, I observed larvae at all stages of development feeding on both A. tridentata ssp. wyomingensis and A. tripartita ssp. tripartita (hereafter abbreviated as A. tridentata and A. tripartita). In 1997 and 1998, I reared captive larvae on A. tripartita for the purpose of obtaining voucher speci-
We thank J. W. Brown, S. Cover, D. G. Furth, J. R. Heitzman, and P. D. Perkins for specimen loans.
Literature Cited
Bentinck, G. A., Graaf & A. Diakonoff. 1968. De nederlandse Bladrollers (Tortricidae). Monogr. Nederl. Entomol. Ver. 3,201 pp.
Bradley, J. D., W. G. Tremewan & A. Smith. 1979. British tortricoid moths. Tortricidae: Olethreutinae. Ray Society, London. 336 pp.
Kuznetsov, V. I. 1989. Leaf-rollers (Lepidoptera, Tortricidae) of the southern part of the Soviet Far East and their seasonal cycles, pp. 57-249. In O. L. Kryzhanovskii, (ed.), Lepidopterous fauna of the USSR and adjacent countries (translation). E. ] Brill, Leiden. 405 pp.
Michael Sabourin. 23476 Johnson Rd., Grantshurg, WI 54840 USA, William E. Miller, Department of Entomology, University of Minnesota, St. Paul, Minnesota 55108 USA, and P. T. Dang, Agriculture and Agri-food Canada, K.W. Neatby Building, Ottawa, Ontario, Canada K1A 0C6.
Received for publication 14 February 1999; revised and accepted 1 December 1999
mens. My observations of host associations and the results of captive-rearing are discussed in this note.
Field-observations. During April 1997, an intensive search was conducted of the area in which H. hera hera larvae were observed feeding on A. tridentata and A. tripartita hosts. Plants containing larvae were tagged and larval development was monitored weekly between May 1997 and July 1997. Larvae on both A. tridentata and A. tripartita demonstrated a life history and behavior typical of H. hera hera in other parts of its range. On both hosts, first through third instars generally fed gregariously and then dispersed to feed individually as fourth and fifth instars. On multiple occasions, late-instar larvae were observed to move from one Artemisia species to the other. Larvae often remained on the second host for several days, indicating that plants of both species were acceptable food sources.
Female H. hera hera in this study area also used both A. tridentata and A. tripartita as oviposition hosts (Hampton 2000). Eggs were most commonly laid on stems of both Artemisia species, but approximately 18% were located on the stems of other species in the sagebrush understory including Chrysothamnus vis-cidiflorus (Hook.) Nutt. (Asteraceae), Leptodactylon
A HOSTPLANT EXTENSION FOR HEMILEUCA HERA HERA (SATURNIIDAE: HEMILEUCINAE): THREETIP SAGEBRUSH (ARTEMISIA TRIPARTITA RYDB.)
Additional key words: sagebrush sheep moth, Artemisia tridentata, captive-rearing.