Mariazofia retrospinosa (Haag-Rutenberg 1871)
Large toktokkie with red patches on pronotum, elytra with reddish costae and large backwards-pointing tubercles.
Original description in:
Haag-Rutenberg G. 1871. Beiträge zur Familie der Tenebrioniden (III. Stück). Coleopterologische Hefte VIII: 29–113.
https://www.biodiversitylibrary.org/item/81206#page/315/mode/1up
Translated from Latin & German:
Short-ovate, thorax with two red patches, a little shiny; thorax scarcely punctate, with rough sides;
elytra broad, slightly depressed on the disc, sloping posteriorly, with three red costae and large turbcles on the coastae and in rows in the intervalls; with strong legs, thick femora, all densely covered with gray down. - Length 22-27 mm, width 14-17 mm.
Var.: All black, the tubercles in the elytra are rarer.
Head and pronotum barely punctured. The latter is laterally very wrinkled, deeply cut out anteriorly, rounded posteriorly, along the psoterior edge is a narrow transverse impression, pronotum thus appearing bent up. The pronotum bears two large red spots, which extend more or less. The elytra are oval, not much longer than wide, somewhat depressed on the disc, with three more or less distinct, usually red, longitudinal costae. On these ribs, depending on the color of the ribs, there are red or black tubercles in an irregular double row, tubercles being smaller at the front and larger towards the back. There are also tubercles in the intervals, arranged in rows on the inner intervals, and more irregularly on the outer ones. The area around the scutellum is smooth. The prosternal process is broad, flat, marginate, straight at the back with slightly marked corners. The legs are very strong, especially the femora, and densely covered with short, gray hairs.
The variety that is characterized by being completely black and having much fewer tubercles arranged in single rows on the costae, could probably be a separate species;
Cape.
iNat observation:
https://www.inaturalist.org/observations/92655618
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