Similar to M. nervosa but easily distinguished by the elytral apices having a much enlarged tooth near the suture (as highlighted by Levey 2018).; elytra with clearly defined, sharp, well separated, parallel ribs (costae).
Only known in SA from early collections at three widely separated locations.
| Legend | P.J.Lang collection vouchered records | |
| other private collection or museum specimens, or sightings |
| ¹ Legend | regions | SA State Herbarium regions (map) EA: Eastern, EP: Eyre Peninsula, FR: Flinders Ranges, GT: Gairdner-Torrens, KI: Kangaroo Island, LE: Lake Eyre, MU: Murray, NL: Northern Lofty, NU: Nullarbor, NW: North-Western, SE: South-Eastern, SL: Southern Lofty, YP: Yorke Peninsula |