Amplectister tenax Caterino and Maddison, 2018

Simon-Pražák, Jan, Yamamoto, Shûhei, Lackner, Tomáš, Fikáček, Martin, Prokop, Jakub & Caterino, Michael S, 2024, A bonanza of Cretaceous fossils provides insights into the evolution of antennal protection in clown beetles (Coleoptera: Histeridae), Zoological Journal of the Linnean Society (zlae 137) 202 (3), pp. 1-28 : 22

Amplectister tenax Caterino and Maddison, 2018

( Fig. 14A, D )

The first abdominal ventrite is more clearly visible in this specimen ( HUM: HU0000121211 ) than in previously available material (i.e. the holotype). The steep lateral flanges are partially formed by a very dense aggregation of long setae stuck together ( Fig. 14D ), whereas in the original description setae were mentioned as occurring only distally on these ridges (Caterino and Maddison 2018).

Figures

Figure 14. Additional structural details.A, Amplectister tenax. B, Carinumerus sp. C, Phasmister hkamticus. D, Abdominal cavity of Amplectister tenax. E, pronotum of Carinumerus sp.Abbreviations:as, abdominal setae; po, pronotal opening.