Wierzejski's Zaphne Fly

Zaphne wierzejskii

General Status Rank: 
Secure
Common Name: 
Wierzejski's Zaphne Fly
Scientific Name: 
Zaphne wierzejskii
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Taxonomy
Group: 
Fly (Anthomyid Fly)
Kingdom: 
Animalia
Phylum: 
Arthropoda
Class: 
Insecta
Order: 
Diptera
Family: 
Anthomyiidae
Distribution

Distribution

The minimum area polygon for this species in the Northwest Territories is approximately 200,000 km sq. based on locality records. In addition, this species is widespread in the western cordillera (Griffiths 1998), as such, it is likely more widespread in the territory. Range G was selected.
Score: 
G

Number of Occurrences

This species is known from 7 locality records in British Columbia: Masset (Queen Charlotte Islands), Sawmill Lake near Telegraph Creek (Griffiths 1998), Agassiz, Minnie Lake (Huckett 1944), localities at or near: Dawson’s Landing, Oliver, and Churn Creek Protected Area (localities inferred from distribution map (fig. 2303) in Griffiths (1998)). This species is also present throughout the Rockies on the west coast, and surrounding regions. It is associated with marsh-like habitats, a non-restrictive type of habitat (Griffiths 1998. This information suggests that this species is much more prevalent in the region than the low number of records indicate. A wide range was selected: 6->300.
Score: 
BE
General Status Rank
Rank: 
Secure
Status Rank Description: 
A gap in the data is making this species appear vulnerable, when there is no indication that this is the case. Gaps in the taxonomic record do not represent real gaps and likely reflect a lack of collection effort. This species is likely more widespread in the province; its habitat is not restricted and there is likely to be input from neighboring regions given how widespread it is in the cordillera (Griffiths 1998). Therefore this species is unlikely to be vulnerable. Despite limited records (7), this species could be more prevalent and widespread in the Northwest Territories than records would suggest (see range extent and occurrences). Nonetheless, given gaps in the data and information known about the species, a conservative assessment would put this species at secure to apparently secure in the Northwest Territories, since although there is no indication that this species is under any threat, it is possible.
S Rank: 
S4S5
Decision Process Description: 
Draft rank by Anna Solecki (Acontract ECCC 2019), reviewed by SC (2019)
Last Updated: 
January 22, 2020

References