Entomology Collection TitleImage Bugs Pinned
Species Page - Drasteria petricola
species list search results ->Drasteria petricola ->species page

E-mail this Page   
Print this Page   
Link to this Page   

scientific name    Drasteria petricola    

common name     Little Arches

habitat
Sparsely vegetated, open habitats, including alpine and montane meadows and prairie grasslands.

seasonality
Adult flight peaks between mid May and mid July, earlier at lower elevations.

identification
The smallest of the Arches (Drasteria) moths. In Alberta, it is the only species in the genus with black lines along the veins of the ventral forewing margin. The mountain populations (ssp. athabasca) tend to be slightly larger and have a more yellow-tan cast to the hindwing compared to the prairie populations (ssp. crokeri). Prairie individuals can be strikingly different with their blue-grey and white colouration, and Barnes and Benjamin (1924) thought these differences may be indicative of a separate species; Individuals from the Calgary and Lethbridge region seem to be intermediate between the two forms, but more work is needed to clarify this situation.

life history
Adults are diurnal and do not come to light. They can be difficult to detect and observe with their rapid flight and contrasting black and white coloration.

conservation
Not of concern.

diet info
The larvae feed on Hedysarum (Lafontaine & Wood 1997). Adults take nectar at flowers, including mint in Utah (Richards 1939).

range
A western species, found from the Yukon and NWT south to New Mexico in the Rockies, east to Manitoba (Lafontaine & Wood 1997).

quick link
http://entomology.museums.ualberta.ca/searching_species_details.php?s=2915



Comments (0)Add New Comment

Comments are published according to our submission guidelines. The EH Strickland Entomological Museum does not necessarily endorse the views expressed.

Add New Comment (all fields are required)
Validation:

CLICK TO ENLARGE
Related Species Info
Authorship
Display Hierarchy
References (1)
Specimen Info
There are 115 specimens of this species in the online database
Map Distribution
Adult Seasonal Distributioncreate a collection histogram with specimens
Specimen List (115)
Related Links
Moth Photographers Group

 

Logo Department of Museums and Collections ServicesLogo University of Alberta