North American Butterflies and Moths List

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Butterflies of North America

Butterflies of Oregon

Pumice Dotted-Blue (Philotiella leona)

Pumice Dotted-Blue (Philotiella leona [Hammon and McCorkle])

Wing span: 3/4 - 1 inch (1.9 - 2.5 cm).

Identification: Tiny. Upperside of male dark dusky blue on basal half, >outer portions black; female is black with a brown cast. Underside white >with large spots on forewing, small spots on hindwing.

Life history: Probably very similar to that of the Small Dotted-blue.

Flight: One flight from mid-June to early July.

Caterpillar host: Eriogonum spergulinum in the buckwheat family >(Polygonaceae).

Adult food: Flower nectar, observed to be from flowers of Epilobium.

Habitat: Ash fields with low scrubby vegetation and open areas of ash.

Range: Klamath County, Oregon.

Conservation: All populations should be conserved and monitored.

The Nature Conservancy Global Rank: G1 -

Management needs: Determine effects of exotic plants and fire on extant populations.


Hammond, Paul C. and David V. McCorkle. 2000. A new species of Philotiella from
    the Oregon Cascade Range (Lepidoptera: Lycaenidae).Holarctic Lepidoptera 
    6(2): 77-82.

Author: Paul A. Opler

State and Regional References:

Dornfeld, E. J. 1980. The Butterflies of Oregon. Forest Grove, 	Ore., Timber 

Hinchliff, J. 1994. An atlas of Oregon Butterflies. Oregon State University
     Bookstore, Corvallis.

Hinchliff, J. 1994. The distribution of the butterflies of Oregon. Evergreen 
     Aurelians. Oregon State University Bookstore, Corvallis, 176 pp. + map. 

Opler, Paul A. 1999. Peterson Field Guide to Western Butterflies, revised 
     edition. Houghton Mifflin Co., Boston, Mass.

Stanford, R.E. and P.A. Opler. 1993. Atlas of Western USA Butterflies. 
     Privately published, Denver, Colo. 

Tilden, J.W. and A.C. Smith. 1986. A Field Guide to Western Butterflies. 
     Houghton Mifflin Co., Boston, Mass.
Pumice Dotted-Blue (Philotiella leona)
distribution map
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