Unarmed Leafcutter Bee

Megachile inermis

General Status Rank: 
Undetermined
Common Name: 
Unarmed Leafcutter Bee
Scientific Name: 
Megachile inermis
Google image search
Taxonomy
Group: 
Hymenoptera (Bee)
Kingdom: 
Animalia
Phylum: 
Arthropoda
Class: 
Insecta
Order: 
Hymenoptera
Family: 
Megachilidae
Distribution

Ecozones

Taiga Plains, Taiga Shield
References: 
H265

Distribution

In Canada known from coast to coast, within YT, NT, BC, AB, SK, MB, ON, QC, NB, NS, NL and PE. Widespread in many ecozones across Canada (HSS010).
Score: 
FG
References: 
HSS010

Number of Occurrences

2 (DD14); 2 AMNH record (unknown location) and Ft Simpson; In Canada known from coast to coast, within YT, NT, BC, AB, SK, MB, ON, QC, NB, NS, NL and PE. Widespread in many ecozones across Canada. Commonly collected bee.
Score: 
A
References: 
H265
HSS010
DD14

Area of Occupancy

Score: 
-
References: 
HSS010
Population

Population Size

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

Trends

SHORT TERM: Presumably stable.
Score: 
G
References: 
HSS010
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: 
HSS010

Intrinsic Vulnerability

Score: 
-
References: 
HSS010
General Status Rank
Rank: 
Undetermined
Status Rank Description: 
Common and widespread in Canada; can be trap-nested, but only 2 loc in NWT; Northwest Territories is a large jurisdiction with a land area of approximately 1,346,106 km2. The territory includes five ecozones (Arctic, Boreal Plains, Taiga Cordillera, Taiga Plains and Taiga Shield). The largest ecozones represented in this territory are the Taiga Plains and Taiga Shield. Threats to bees and bee communities in this territory are unknown although are likely minimal.
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

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

Short Term Trends

  • 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