Feisty Leafcutter Bee

Megachile pugnata

General Status Rank: 
Undetermined
Common Name: 
Feisty Leafcutter Bee
Scientific Name: 
Megachile pugnata
Taxonomy
Group: 
Hymenoptera (Bee)
Kingdom: 
Animalia
Phylum: 
Arthropoda
Class: 
Insecta
Order: 
Hymenoptera
Family: 
Megachilidae
Distribution

Ecozones

Taiga Plains, Taiga Shield
References: 

Distribution

In Canada known from NT, BC, AB, SK, MB, ON, QC, NB, NS and PE. Widespread in many ecozones across Canada. More commonly collected in southern Canada (HSS010).
Score: 
FG
References: 

Number of Occurrences

2-3 (DD14); 2 AMNH record (unknown location) and Ft Smith (old records); In Canada known from NT, BC, AB, SK, MB, ON, QC, NB, NS and PE. Widespread in many ecozones across Canada. More commonly collected in southern Canada. Commonly collected bee in southern Canada.
Score: 
A
References: 

Area of Occupancy

Score: 
-
References: 
Population

Population Size

Population size unknown, not possible to estimate (HSS010).
Score: 
U
References: 
Threats

Threats

Cumulative threats from habitat loss and/or conversion to agriculture/urban development, invasive non-native species, climate change, livestock grazing, recreational use, etc. (as outlined in short and long-term trends) have all likely contributed to declines in bee abundance. The specific impact to each bee species is unknown due to lack of specimen data, surveys, natural history information of a species and analysis of these impacts on these variables (HSS010).
References: 

Intrinsic Vulnerability

Score: 
-
References: 
General Status Rank
Rank: 
Undetermined
Status Rank Description: 
Common and widespread in Canada; Threats to bees and bee communities in this territory are unknown although are likely minimal. The bee fauna in this territory is poorly studied in most areas , mainly due to inaccessibility, excluding urban areas and transport corridors connecting these urban areas. The ecozones within the jurisdiction remain largely unmodified, aside from the longer-term effects of climate change. Given the natural history information available, we assume that the bee fauna is largely unchanged, albeit only suitable in habitats with floral resources and nesting sites. In Canada known from NT, BC, AB, SK, MB, ON, QC, NB, NS and PE. Widespread in many ecozones across Canada. More commonly collected in southern Canada.Solitary bee. Floral generalist. Cavity nester. Cumulative threats, mainly within areas of human habituation, include habitat loss and/or conversion to agriculture/urban development, invasive non-native species, climate change, livestock grazing, recreational use, etc. (as outlined in short and long-term trends) and have all likely contributed to declines in bee abundance. The specific impact to each bee species is unknown due to lack of specimen data, surveys, natural history information of a species and analysis of these impacts on these variables. These threats may not applicable to portions of ecozones with large natural areas. Species specific threats are unstudied for most bees (HSS010).
S Rank: 
SU
Decision Process Description: 
Draft rank by C Sheffield (2011) (H253); Rank reviewed in 2014 by Cory Sheffield using the NatureServe Canada Rank Calculator; Reviewed in 2020 by C Sheffield, no change
Last Updated: 
November 24, 2020

References

Area of Occupancy

  • Hebert, Remi (2014) A set of 2 e-mails GS bees and GS bees - Abeilles SG with ranks proposed by Cory Sheffield and Jennifer Heron (07/08/2014). - HSS010 Return

Ecozones

  • Dumesh, S and Sheffield, C.S. (2012) NWT Bee Database 31 May 2012 - Updated with latlong June 2012. copy in Excel - H265 Return

Intrinsic Vulnerability

  • Hebert, Remi (2014) A set of 2 e-mails GS bees and GS bees - Abeilles SG with ranks proposed by Cory Sheffield and Jennifer Heron (07/08/2014). - HSS010 Return

Number of Occurrences

  • Hebert, Remi (2014) A set of 2 e-mails GS bees and GS bees - Abeilles SG with ranks proposed by Cory Sheffield and Jennifer Heron (07/08/2014). - HSS010 Return
  • Dumesh s., Sheffield, CS and Richardson Leif. (2012) NWT bee database with ranks (version June 2012).. e-copy available - DD14 Return

Population Size

Hebert, Remi (2014) A set of 2 e-mails GS bees and GS bees - Abeilles SG with ranks proposed by Cory Sheffield and Jennifer Heron (07/08/2014). - HSS010 Return

Range Extent

  • Hebert, Remi (2014) A set of 2 e-mails GS bees and GS bees - Abeilles SG with ranks proposed by Cory Sheffield and Jennifer Heron (07/08/2014). - HSS010 Return

Threats

  • Hebert, Remi (2014) A set of 2 e-mails GS bees and GS bees - Abeilles SG with ranks proposed by Cory Sheffield and Jennifer Heron (07/08/2014). - HSS010 Return