Autrigoniscus, Sánchez-García & Peñalver & Delclòs & Engel, 2021

Sánchez-García, Alba, Peñalver, Enrique, Delclòs, Xavier & Engel, Michael S., 2021, Terrestrial Isopods from Spanish Amber (Crustacea: Oniscidea): Insights into the Cretaceous Soil Biota, American Museum Novitates 2021 (3974), pp. 1-32 : 13

Autrigoniscus , new genus

TYPE SPECIES: Autrigoniscus resinicola , new species .

DIAGNOSIS: Male. An oniscidean with the following combination of characters: Body size small (<2 mm), more or less oblong, with pleon much narrower than pereon; dorsal surface moderately convex dorsally, with epimeral plates only moderately prominent, relatively smooth in appearance, covered with small semicircular scales and sparsely arranged, small triangularshaped scale setae. Eyes small but distinct (with at least three ommatidia). Antennule with three articles, distal article shorter than second and bearing a tuft of apical aesthetascs. Antenna rather stout, with flagellum composed of six articles. Pereopods not all alike, of moderate size, armed with elongate, thick, nearly straight spines arranged in a longitudinal row on sternal margin; carpus modified having a large distal process on tergal margin with a row of scales; dactylus simple (i.e., with one claw); dactylar setae unbranched, glabrous, long and slender (i.e., flagellar). First pair of pleopods modified; endopod biarticulate, with proximal article very short, and distal article long and slender, styliform. Uropod moderately elongate, not surpassing length of pleon; protopod rather short and stout, produced inside pleotelson, with endopod and exopod inserted at same level; endopod and exopod conical, exopod much longer and stouter than endopod, each with a terminal tuft of setae. Female. Unknown.

ETYMOLOGY: The new genus group name is a combination of the pre-Roman tribe Autrigones (who lived in northern Spain near the region of the amber localities along with the Cantabri) and the Greek suffix – iskos, denoting a diminutive. The gender of the name is masculine.