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Montana Field Guide

Montana Field Guides

Melissa Arctic - Oeneis melissa

Potential Species of Concern
Native Species

Global Rank: G5
State Rank: S2S3


Agency Status
USFWS:
USFS:
BLM:
FWP SWAP: SGIN



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General Description
[From Ferris and Brown 1981; Scott 1986; Opler and Wright 1999; Glassberg 2001; Pyle 2002] Forewing 2.4-2.7 cm. Wings translucent, overall appearance black to brownish, wing fringes often checkered; area of hindwing greater than area of forewing. Uppersurface gray-brown, lacking eyespots or faint if evident. Undersurface of hindwing tightly mottled black and gray, basal and postmedian lines lacking or faint with white outlines.

Phenology
One flight; mostly July, mid-July to mid-August in Alberta, mid-June to July in the Arctic, early to mid-August in Wyoming (Scott 1986); late June to early August (Glassberg 2001); mid-July to mid-August in Washington (Pyle 2002); late June to late July in British Columbia (Threatful 1988); June to July in northern alpine areas and July to August in southern alpine areas of British Columbia (Guppy and Shepard 2001).

Diagnostic Characteristics
Best determined by a combination of slightly transluscent wings lacking eyespots (faint if present), the undersurface of the hindwing tightly mottled black and white, the basal and postmedian lines absent (or weak and bordered by white).

Species Range
Montana Range Range Descriptions

Native
 


Range Comments
Holarctic. In North America, Arctic Alaska east to Baffin Island and Labrador, south in the west in discontinuous populations to northern Washington in the Cascade Range, northern New Mexico in the Rocky Mountains, south in the east to the Appalachian Mountains of New Hampshire (Scott 1986; Opler and Wright 1999; Glassberg 2001; Pyle 2002); 3350 m to 4270 m elevation in Colorado (Brown 1957; Ferris and Brown 1981), 3050 m to at least 3350 m elevation in Wyoming (Ferris and Brown 1981), above 2135 m elevation in Washington (Pyle 2002), 2134 m to 2732 m elevation in British Columbia (Threatful 1988). In Montana, reported from Glacier, Carbon, and Stillwater counties (Kohler 1980; Stanford and Opler 1993), most recently (2013) Sweet Grass County, above treeline to at least 3350 m elevation in the Beartooth Mountains (Ferris 1975). Uncommon to common (Glassberg 2001).

Migration
Non-migratory.

Habitat
Above treeline in dry alpine tundra, talus slopes, wind-swept rocky or short grass ridgetops, fellfield; also arctic dry tundra (Ferris and Brown 1981; Scott 1986; Threatful 1988; Pyle 2002). Not described for Montana, but probably similar.

National Vegetation Classification System Groups Associated with this Species

Food Habits
Limited information. Larval food plants include a few species of Carex in nature, Poa in captivity, Deschampsia in Asia (Scott 1986, 1992; Guppy and Shepard 2001; Pyle 2002). Adult foods apparently unknown or not reported; rarely feeds on flower nectar (Scott 1986, 2014).

Reproductive Characteristics
Limited information. Females lay eggs on or near host plant, in litter, and on rocks. Caterpillars feed at night on leaves. Two years are required to complete development; hibernates the first winter as L2 or L3 instar, the second winter as L5; , pupates under mosses, rocks, or partly in the soil (Scott 1986, 1992). Males perch and patrol throughout the day in rocky areas (rocky ridge tops, rockslides, rock chutes on hillsides) in search of females (Scott 1975b, 1982, 1986).


References
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Citation for data on this website:
Melissa Arctic — Oeneis melissa.  Montana Field Guide.  .  Retrieved on , from