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Species Page - Gypsonoma nebulosana
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scientific name    Gypsonoma nebulosana    

habitat
Inhabit boreal forests with occasional occurrence in small patches of grassland in boreal regions (Pohl et al. 2010).

seasonality
Adult flight periods occur in July (Pohl et al. 2010).

identification
This genus has a forewing pattern that is uniform with the basal patch and median fascia well defined. This well defined region is also separated by an interfascial band of contrasting, lighter coloration. Male moths lack costal folds and notching near the base of their antennae. Male genitalia consist of a prominent clasper on the basal excavation margin and a cluster of long scales on the tegumen (near the area where the tegumen articulates with the vinculum). Female genitalia consist of two tacklike signa with some degree of sclerotization of the ductus bursae. The sculpturing of the sterigma is different between species (Heinrich 1923, Miller 1987, Gilligan et al. 2008). This species has an alar expanse of 19mm (with a body length of 7mm and a forewing length of 9 mm (Heinrich 1924, Packard 1866). Their bodies are blackish with clouded, dusky wings. The wings have no lines or spots with the exceptions of scattered black dots on the costa and gathered dusky scales in the middle of the wing to form an obscure, dark spot with a tawny tinge. The hindwings are much paler than the forewings. The head, thorax and palpi are dull brown, the abdomen ashy grey. This species can be distinguished from other moths of this genus by the absence of distinctive markings on the forewings and its uniformly dusky body. A discal dot connected to a costal dot may be present. Few tawny scales on the apex may also be present. The fringe on this species is dusky with a mesial white line, and may be white on the hindwings (Packard 1866). Can be distinguished from G. fasciolana by the lack of the whitish anti-median and post median areas (Heinrich 1924).

life history
In North America, this genus consists of leaf-rolling larvae that feed within their rolled leaves of Salix and Populus (Miller 1987). These larvae then pupate (mostly likely hibernate as larvae or pupae) and emerge from their leaf rolls as adults in July (Razowski 2003). Most likely multiple generations per year at lower latitudes.

conservation
No information available.

diet info
No information available. Most likely a leaf-roller of Salix and/or Populus (Miller 1987).

range
This genus has a primarily Holarctic range with seven species recognized in North America (Specimens found in Alberta) (Gilligan et al. 2008, Pohl et al. 2010).

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=19819



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Authorship
References (7)
Related Links
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