Species Details

Caripeta divisata

University of Alberta E.H. Strickland Entomological Museum Read more about this collection »

Common NameTwin-spot Girdle, Gray Spruce Looper SeasonalityFlies in spring and early summer, peaking from mid June to early July. IdentificationA relatively large geometrid with a broad, jagged median band on the forewing and a large white discal spot. Ground colour white with heavy dark brown speckling, median band bordered with white. Hindwing pale grey-white with lighter dusting of fine brown striations or speckles. Other Alberta Caripeta have much smoother median band borders and lack the speckled forewing appearance. Epirranthis substriataria is somewhat similar, but flies in early spring usually lacks the large, conspicuous white discal spot, and the median area is not darkened to form a broad band.

Scientific Name Caripeta divisata Common Name Twin-spot Girdle, Gray Spruce Looper Habitat Coniferous and mixedwood forests and woodlands. Seasonality Flies in spring and early summer, peaking from mid June to early July. Identification
A relatively large geometrid with a broad, jagged median band on the forewing and a large white discal spot. Ground colour white with heavy dark brown speckling, median band bordered with white. Hindwing pale…
A relatively large geometrid with a broad, jagged median band on the forewing and a large white discal spot. Ground colour white with heavy dark brown speckling, median band bordered with white. Hindwing pale grey-white with lighter dusting of fine brown striations or speckles. Other Alberta Caripeta have much smoother median band borders and lack the speckled forewing appearance. Epirranthis substriataria is somewhat similar, but flies in early spring usually lacks the large, conspicuous white discal spot, and the median area is not darkened to form a broad band.
Life History
The abdominal segments of the larva are thickened at the distal end, which, in combination with light yellow-brown lateral patches, give them a "bumpy" appearance much like a conifer twig (illustrated in Wagner et al.…
The abdominal segments of the larva are thickened at the distal end, which, in combination with light yellow-brown lateral patches, give them a "bumpy" appearance much like a conifer twig (illustrated in Wagner et al. 2001 and Duncan 2003). Pupae overwinter. The grey forest looper is occasionally a destructive defoliator; outbreaks have occurred near Terrace, BC in 1961 and the west Kootenay area in 1990-91. Hemlock mortality may reach 78% in areas defoliated for two consecutive years (Duncan 2003).
Conservation Not of concern. Diet Info
Most Canadian conifer species have been recorded as larval hosts, the preferred species including hemlock (Tsuga spp.), fir (Abies spp.), Douglas-fir (Pseudotsuga menziesii) and spruce (Picea spp.) (Prentice 1963).
Most Canadian conifer species have been recorded as larval hosts, the preferred species including hemlock (Tsuga spp.), fir (Abies spp.), Douglas-fir (Pseudotsuga menziesii) and spruce (Picea spp.) (Prentice 1963).
Range Found throughout most of temperate North America, wherever conifers grow. Coastal BC east to Nova Scotia and Newfoundland, south to FL (McGuffin 1987).

Citation

Page Citation for Caripeta divisata

Page Citation

"Species Details - Caripeta divisata, University of Alberta E.H. Strickland Entomological Museum." University of Alberta Museums Search Site, https://search.museums.ualberta.ca/g/2-3973. Accessed 04 Jul. 2022.

Taxonomic Hierarchy

Kingdom Animalia Phylum Arthropoda Class Hexapoda Subclass Insecta Order Lepidoptera Suborder Ditrysia Superfamily Geometroidea Family Geometridae Subfamily Ennominae Tribe Ourapterygini Genus Caripeta Species Caripeta divisata
This hierarchy is created from our museum records, it may not always accurately reflect modern taxonomies.

Taxonomic Hierarchy for University of Alberta E.H. Strickland Entomological Museum