Genus Tachysphex

Tachysphex : eyes converging above but not emarginate (ie notched) on inner margins; and upper pair of ocelli are modified (ie not fully developed and perfectly rounded) being scare-like and oval. For Tasmania, Tachytes is similar but on those characters the modified ocelli are more elongate and comma-like. Australian and New Zealand prey records for this genus only includes cockroaches, which appears to be unique among the crabronids.

Female (antennae 12-segmented – 13-segmented in males)
Early November 2014
Buckland
   

Female
Early January 2011
Rocky Cape National Park
Subfamily identification thanks to David Rentz and Bleu.geo

Carrying a paralysed native cockroach back to its burrow.

Tachysphex sp.1 male  (13-segmented antennae)
Late February 2016
Knocklofty Reserve, Hobart.
Flying around a dead Eucalypus log that was covered in burrows.
 

Mid December 2016
Peter Murrell Reserve, Blackmans Bay

Mid February 2020
Longley

Tachysphex sp. 2 male
Late February 2016
Knocklofty Reserve, Hobart.
Flying around a dead Eucalypus log that was covered in burrows.

 

Late April 2017
Lake St Clair