5904 Lobed Mason Wasp

Lobed Mason Wasp, a species of Potter and Mason Wasps. More detail on thorax markings. This one has yellow markings rather than white, 6 abdominal bands (vs 4). Around 1/2 inch long. Looks like same species as 5904 taken at the same location 3 days earlier. Same individual as 5905. Home, Regina, Saskatchewan, Canada. 4 August 2022. Good side view showing an extra thoracic line near the head. This one has yellow markings rather than white, 6 abdominal bands (vs 4). Looks like same species as 5905 and 5906 taken at the same location 3 days later. Around 1/2 inch long. Home, Regina, Saskatchewan, Canada. 4 August 2022

 

Genus Ancistrocerus according to inaturalist.

 

Apparently a Lobed Mason Wasp Ancistrocerus antilope of critical status in SK

 

'Identification

The strongly impressed notauli (paired lines or grooves on the mesoscutum that subdivide the sclerite into a median midlobe and lateral lobes) and the dark metanotum separate this species from other members of the genus.

 

Range: Holarctic' bugguide.net/node/view/30502

 

Ancistrocerus

 

'Ancistrocerus is a widely distributed genus of potter wasps present in many biogeographical regions of the world. They are nonpetiolate eumenine wasps with a transverse ridge at the bending summit of the first metasomal tergum and with a low and opaque propodeal lamella completely fused to the submarginal carina.' inaturalist.ca/taxa/127788-Ancistrocerus

 

Ancistrocerus Wesmael 1836: The name refers to the hooked male antennae

 

Numbers: ~20 spp. in our area(1), ~120 total(2)

 

Identification

key to the 14 spp. of the northeast(1)

 

Range

mostly holarctic (with ~half of the spp. in the Palaearctic, and some representation in more southern regions)(3)(2) bugguide.net/node/view/6812

 

 

Done