Pterostichus (Nialoe) kitakamisanus Sasakawa, 2005

Sasakawa, Koji & Mitsuduka, Yoshiji, 2023, A morphology-based revision and phylogenetic analysis of the Pterostichus macrogenys species group (Coleoptera, Carabidae) and implications for differentiation of the species group, Deutsche Entomologische Zeitschrift 70 (2), pp. 291-310 : 291

Pterostichus (Nialoe) kitakamisanus Sasakawa, 2005

Figs 3C, D , 5I-N , 6K-M

Material examined.

1♂, Ôdateminami, Ayukawahama, Ishinomaki-shi, Miyagi Prefecture, Japan (MGRS: 54 SWH45274 40885; 38.31492752°N, 141.51788663°E), 28. vii. 2022, hand-collected from soil, Y. Mitsuduka leg (Figs 3C , 5I-L , 6K, L ) .

Notes.

The identification was based on comparison with the P. kitakamisanus holotype male, which is labelled "JAPAN; Iwate-ken/Miyako-shi/Genbeidaira/ 30.VIII-10.IX. 2002/Y. Kawahara leg" (Figs 3D , 5M, N , 6M ). Although the apex of the left pre-apical lobe was not confirmed to be the same structure as that of the holotype due to failure to evert it, all other structures of the endophallus, parameres and external morphology were identical to those of the holotype. In particular, the left pre-apical lobe directed left laterally is a character state found only in P. kitakamisanus amongst the known taxa of the Pterostichus macrogenys species group and provides definitive evidence for our species identification. The body lengths (mm) of the specimen are BLm 15.11, BLl 14.13 and BLc 13.63. This collection record is the southernmost record of the species. Judging from its known collection sites, P. kitakamisanus is likely distributed widely in the Kitakami Mountains.

Figures

Figure 3. Habitus dorsal view of the Pterostichus macrogenys species group. A. Pterostichus chokaisanus male from Momoyake; B. P. chokaisanus male from Zao-chuo-kogen; C. P. kitakamisanus male from Odateminami; D. P. kitakamisanus holotype male from Genbeidaira.

Figure 5. Endophallus of Pterostichus chokaisanus male from Momoyake (A-D), P. chokaisanus male from Zao-chuo-kogen (E-H), P. kitakamisanus male from Odateminami (I-L) and P. kitakamisanus holotype male from Genbeidaira (M, N). Fully inflated endophallus in left lateral (A, E, I, M), apical (B, F, J, N), right lateral (C, G, K) and basal part in dorsal and apical part in ventral (D, H, L) views.

Figure 6. Right paramere of Pterostichus namahage sp. nov. holotype male from Haraikawa (A), P. kamurosanus sp. nov. holotype male from Ariya (B), P. atsumidakensis sp. nov. holotype male from Take-no-koshi (C-E), P. asahinus male from Momoyake (F-H), P. chokaisanus male from Momoyake (I), P. chokaisanus male from Zao-chuo-kogen (J), P. kitakamisanus male from Odateminami (K, L) and P. kitakamisanus holotype male from Genbeidaira (M). Left lateral (A-C, F, I-K), right lateral (L, M), apical part in apical and basal part in ventral (D, G) and apical part in dorsal (E, H) views.