Protolampra rufipectus (Morrison, 1875)

93-3648

Identification

Adults

Protolampra rufipectus is a red-brown suffused clay-colored medium-sized moth (FW length 14 - 18 mm) with simple pattern of black lines and spots a dark black-brown collar that is found in forests throughout much of the Pacific Northwest during the summer. The forewing is slightly bluish gray with a slight sheen and is variably suffused with red-brown, especially in the median area and medial to to the subterminal line. The lines are single, red-brown or dark gray. The antemedial line is slightly irregular. The postmedial line is scalloped. The median line is variable, usually light or absent but occasionally dark. The subterminal line is also variable, usually slightly uneven but occasionally jagged, with a dark preceding red-brown shade that is darkest near the apex. The orbicular and reniform spots are red-brown and usually faint. The orbicular spot is round to slightly oblique, filled with the ground color, and usually medium-large in size. The lower reniform spot contains a gray spot in some specimens. The hindwing is light yellow-gray, darker gray near the margin, with similar dark gray discal spot and veins and light gray fringe. The head and collar are smooth velvety brown. The rest of the thorax matches the forewing, gray to reddish gray. The male antenna is filiform.

Protolampra rufipectus can usually be identified by its blue-gray to reddish gray forewing with simple pattern of single red-brown lines in combination with a dark brown head and collar. Other species with a similar forewing pattern lack the brown collar, and other species with a similar collar have different forewing color and pattern.

Habitat

This species is found in forest habitats.  In the Pacific Northwest, it is moderately common in spruce-fir forests and mixed hardwood-conifer forests at high elevations in the Cascades and Rocky Mountain regions, and in open ponderosa pine forests at middle elevations east of the Cascades.  It also occurs in coastal rainforests at low to middle elevations west of the Cascades, but is usually rare.

Distribution

Pacific Northwest

Protolampra rufipectus is found in forests throughout the Pacific Northwest, including west of the Cascades. It does not occur in xeric steppe but is found in higher mountains of southern Oregon and Idaho.

Global

This species is widely distributed in western North America. It occurs from Alaska south to the Sierra Nevada in California and Arizona and New Mexico in the Rocky Mountains. The range extends east in boreal forest in a narrow north-south distribution near the Canada-United States border. It occurs from the island of Newfoundland to New Jersey along the Atlantic Coast.

Life History

Larvae

This species is known to feed on spiraea (Spiraea spp.) in the Rosaceae, and probably feeds on other Rosaceae and hardwoods as well.

Adults

Adults fly in the summer. It has been collected from early July through September in our region, most commonly at the end of July and early August. It is nocturnal and comes to lights.

Economic Importance

None.

Literature

BugGuide

Lafontaine (1998)

Moth Photographers Group