Lotis Blue Butterfly Recovery Plan - U.S. Fish and Wildlife Service

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Table 1 Suspected food plants of several races of Lycaeides argyrognomon Race Food pl ant s Source empetri ricei sub1 ivens Lupinus polyphyl lus As tragal us whi tneyi Lotus oblong if01 ius Empetrum nigrum Ledum palustre Kalmia pol i fol ia Lotus formosissimus Lupinus sp. La thyrus torreyi Vicia exigua Lotus sp. Lupinus parviflorus C. Kellner (pers. comm.) I1 I1 Downey 31975 I1 J. F. Emmel (pers. comm.) R. A. Arnold (pers. observ.) Downey 31975 81 J. F. Emmel (pers. comm.) Downey 31975
diameter, No specimens of Bolander's sweet pea were noted in the bog. kerweed (Lotus scoparius) was a1 so found on drier ground adjacent to the bog site. However, no adults of the lotis blue butterfly were found in association with either the deerweed or the sweet pea. Rice's blue butterfly [Lycaeides arqyrognomon ricei (Cross)] in northern California and the Anna blue butterfly [Lycaeides arqyrognomon - anna (W. F. Edwards)] use other Lotus species as their larval food-plants 1 (J. Emmel and C. Kellner , per. comm). Lycaeides 5. ricei is found in boggy meadows similar to L. a. lotis. Thus while the larval foodplant of C. 5. lotis has not been positively identified, Lotus formosissimus is the primary candidate. Habitat Description Historically, the lotis blue butterfly has been found in wet meadows and sphagum-willow bogs (Tilden 1965). Today the lotis blue butterfly is known only from a sphagnum bog in the Pygmy Forest, Mendocino County, Cal i fornia. The bog i s surrounded by a cl osed-cone pine forest, dominated primarily by Bishop pine (Pinus muricata) with an ericaceous (Arctostaphylos, Kalmia, Gaul theria, etc. ) understory. is bisected by a Pacific Gas and Electric Company power1 ine right-of- way. Other tree species that occur sporadically in the overstory Mr. Clinton Kellner, Department of Zoology, University of California, Davis. . . It
Page 3 and 4: Approved : LOTIS BLUE BUTTERFLY REC
Page 5 and 6: Executive Summary 1. Point or condi
Page 7: TABLE OF CONTENTS Part I INTRODUCTI
Page 10 and 11: presents. information on the lotis
Page 14 and 15: include -pygmy cypress (Cupressus p
Page 16 and 17: krgure 1. Historic Co99ects'on of L
Page 18 and 19: Larval &uelopment is general ly com
Page 20 and 21: Logging of the forest may also affe
Page 22 and 23: delisting. The restricted current r
Page 24 and 25: 14. Survey known LRB colony(ies) ha
Page 26 and 27: 4. Develop publ ic awareness of LBB
Page 28 and 29: 11. Conduct vegation studies at col
Page 30 and 31: 13. Devel op and impl ement managem
Page 32 and 33: a1 so should be consul ted for reco
Page 34 and 35: difficult because the species is sc
Page 36 and 37: developed for two endangered butter
Page 38 and 39: Following achievement of interim ob
Page 40 and 41: collections made at the present sit
Page 42 and 43: 53. Enforce all laws prohibiting th
Page 44 and 45: Li teratu re Ci ted Arnold, R. A. 1
Page 46 and 47: Part I11 Imp1 ementation Schedule T
Page 48 and 49: PART I I1 IMPLEMENTATION SCHEDULE L
Page 50 and 51: PART 111 IMPLEMENTATION SCHEDULE LO
Page 52 and 53: PART I11 IMPLEMENTAT ION SCHEDULE L
Page 54: PART IV Appendix Agencies Asked for

Lotis Blue Butterfly Recovery Plan - U.S. Fish and Wildlife Service

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