5 individuals found on a yet to be identified ground beetle on the Kepler track (Fiordland).
SEM image at 43x magnification
Mites on this carabid (Mecodema sp.). In addition to the three visible in this photograph, the legs of a fourth mite are visible on the other side of the beetle in another photograph.
Mecodema with a heavy load of mites, probably Berzercon ferdinandi. In the second photograph, five mites are at least partly visible, but more were present.
Sample received from Corinne Watts, labelled:
QEII block
Pitfall trap
Transect QI02-03
Trap 9
22 Jan-24 Feb 2016
Beetles
NOTE: The mite may have come off a Mecodema oconnori in the same sample.
Identification: Berzercon ferdinandi Seeman & Baker, 2013. ID based on original reference.
on Carabid beetle. several more on ventral surface
stephen_thorpe suggested this species on the entry of the Carabid beetle these mites were found on.
Mites on carabid beetle found under rock (by axons)
Mites on Mecodema sp. (see this observation), probably Berzercon ferdinandi.
See: Seeman, O. D., & Baker, M. R. (2013). A new genus and species of Discozerconidae (Acari: Mesostigmata) from carabid beetles (Coleoptera: Carabidae) in New Zealand. Zootaxa, 3750(2), 130–142. https://doi.org/10.11646/zootaxa.3750.2.2
Line 15, trap 1. Pitfall.
Found on this beetle http://www.inaturalist.org/observations/145534554
The observations for https://inaturalist.nz/taxa/377095-Micromegistus/browse_photos look identical too