Euconnus (Tetramelus) armitagei (King) Jałoszyński, 2023

Jałoszyński, Paweł, 2023, Scydmaenus Latreille of Australia: Revision of species in subgenera Choleropsis Franz, Kingius Franz, Mascarensia Franz, Parallomicrus Franz, Scottiscydmaenus Franz, and description of Ascydmaenus subgen. n. (Coleoptera, Staphylinidae, Scydmaeninae), Zootaxa 5371 (1), pp. 1-75 : 70

Euconnus (Tetramelus) armitagei (King) , comb. n.

Heterognathus armitagei King, 1864: 98 .

Scydmaenus (Cholerus) armitagei (King) ; Csiki, 1919: 72.

( Figs 187–188 )

Type specimens studied as high-quality photographs. Presumable syntypes: 2 exx. ( Fig. 187 ) mounted on one card, “K23213” [brownish, handwritten], “K 197769” {white, printed], “ PARATYPE ” [blue, printed] ( AMS); 1 ex. ( Fig. 188 ) , with labels illustrated in Fig. 205 : “K23212” [brownish, handwritten], “Het / armitagei” [brownish, handwritten], “K 197770” [white, printed], “ HOLOTYPE ” [red, printed] ( AMS) .

Remarks. Already King (1864), who described this species, noted that in contrast to all remaining species that he placed in Heterognathus , this one has a tetramerous antennal club. He noted: “I place it however in this genus with some hesitation, as I have not yet obtained a specimen for dissection”. In addition, he described “ thorace fossula transversa basali ”, i.e., the pronotum with a transverse antebasal groove, which is a character not known in any Scydmaenus , but commonly found among Stenichnini. If the specimens preserved at AMS are indeed those studied by King, they can be unambiguously placed in Euconnus (Tetramelus) . If not, a placement in the subgenus is putative. However, the original description allows for excluding this species from Scydmaenus (and Scydmaenini ).

Figures

FIGURES 187–188. Syntypes of Euconnus (Tetramelus) armitagei (King), comb. n. (=Heterognathus armitagei). © Natalie Tees (AMS).

FIGURES 189–205. Historical labels of primary type specimens. Lectotype of Heterognathus gracilis King (189); holotype of Scydmaenus beechmonti Franz (190); lectotype of Heterognathus geniculatus King (191); holotype of Scydmaenus kurandae Franz (192); lectotype of Heterognathus princeps King (193); holotype of Scydmaenus marwillumbali Franz [© Lisha Jasper, (BM)] (194); lectotype of Heterognathus carinatus King (195); holotype of Scydmaenus formicarum Franz (196); holotype of Scydmaenus australiensis Franz (197); lectotype of Heterognathus myrmecophilus Lea (198); holotype of Scydmaenus inflatitibia Franz (199); holotype of Scydmaenus clarkianus Franz (200); lectotype of Scydmaenus optatus Sharp (201); holotype of Scydmaenus scotti Franz (202); lectotype of Scydmaenus swanensis Franz (203); holotype of Scydmaenus brachyponerophilus sp. n. (204); syntype of Heterognathus armitagei King [© Natalie Tees (AMS)] (205).