Xylomoia strix retinax Mikkola, 1998

Haverinen, Risto, Pototski, Aleksander, Mutanen, Marko, Mikalauskas, Darius, Yakovlev, Roman V., Müller, Günter C., Prozorov, Alexey M. & Saldaitis, Aidas, 2024, Integrative review of Xylomoia strix, X. retinax and X. stangelmaieri (Lepidoptera, Noctuidae, Xyleninae, Apameini), ZooKeys 1221, pp. 309-342 : 309-342

Xylomoia strix retinax Mikkola, 1998 stat. nov.

Figs 3 , 36–41 , 65–68 , 87–89

Xylomoia strix retinax Mikkola, 1998 : Systematic Entomology 23: 181. TL: “ Russia, Western Siberia, Akademgorodok (40 km SE Novosibirsk). ” Holotype male, ZMHF [examined].

Diagnosis.

Distinguished from X. strix stangelmaieri by smaller pollex (Figs 65–68 ), from both congeners by lack of dark medial field on forewing (Figs 36–41 ), fold of ductus bursae (Figs 87–89 ) and genetically, having an average p - distance of 1.75 % from X. strix stangelmaieri and 0.33 % from X. strix strix . Average p - distance between X. strix retinax and X. graminea is 2.36 %, X. strix retinax and X. chagnoni , 7.22 %, and X. strix retinax and X. indirecta , 8.13 % (Fig. 90 ).

Variability.

Adults. May be dark-colored with brownish tinge (Figs 36–38 ) or pale-colored with yellowish tinge (Figs 39–41 ), submarginal area may be dark (e. g., Fig. 36 ) or pale (e. g., Fig. 38 ). Male genitalia. Uncus may gradually get thin towards apex (Figs 66 , 68 ) or only be thin near its apex (Figs 65 , 67 ), saccus varies in size, carina may be more (e. g., Fig. 65 ) or less pronounced (e. g., Fig. 67 ), additional cornutus similar to the basal one may be present near carina (Fig. 66 ), basal cornutus varies in size from small (e. g., Fig. 65 ) to large (e. g., Fig. 66 ), medial cornutus may be almost straight (Fig. 65 ) or c-shaped (e. g., Fig. 67 ). Female genitalia. Antevaginal plate slightly varies in thickness, bursa copulatrix and hind signum vary in size (Figs 87–89 ).

Distribution area.

Russia (Orenburg, Chelyabinsk, Omsk, Novosibirsk Oblasts and Altai Republic).

Figures

Figure 90. Phylogenetic tree (Maximum Likelihood, HKY + F + I, 1000 ultrafast bootstrap replicates) for Xylomoia spp. built in IQ-TREE 2.2. 0 and pairwise distances (%) computed for each pair of taxa in MEGA X.

Figures 1–4. Adults and male genitalia of Xylomoia spp. with labels (ZMHF). 1, 4 HT male of X. strix, lacking features of phallus are indicated with arrows 2 HT male of X. stangelmaieri 3 HT male of X. retinax. Scale bars: 1 cm (for adults); 1 mm (for genitalia).

Figures 30–41. Adults of Xylomoia strix sspp. with labels (CRH). 30–35 X. strix strix 36–41 X. strix retinax. Scale bar: 1 cm.

Figures 65–68. Male genitalia of Xylomoia strix retinax (CRH). Scale bar: 1 mm.

Figures 87–89. Female genitalia of Xylomoia strix retinax (CRH). Abbreviations: h – hind signum. Scale bar: 1 mm.