Amara (Curtonotus) fodinae Mannerheim, 1825

Li, Yihang, Li, Haoyuan & Shi, Hongliang, 2024, Revision of the macropterous subgenus Curtonotus from east China, with the description of a new species (Carabidae, Zabrini, Amara), ZooKeys 1190, pp. 39-73 : 39

Amara (Curtonotus) fodinae Mannerheim, 1825

Fig. 7

Amara fodinae Mannerheim, 1825: 20 (type locality: “Barnaul” [in Altai Krai, Ruaasia]; syntypes could be lost); Morawitz 1862: 234; Tschitschérine 1894: 387; Kryzhanovskij 1975: 92.

Leirus altaicus Motschulsky, 1844: 174 (type locality: “Altai” [in Altai Krai, Russia]; syntypes in Motschulsky’s personal collection); synonymized by Morawitz 1862: 234.

Amara (Curtonotus) primitiva Jedlička, 1957: 28 (type locality: "Quellgebiet des fl. Irkut im Ostsajan-Gebirge" [= Headwaters of the Irkut river in the east Sayan Mountains, Buryatia, Russia]; holotype in NMPC); synonymized by Kryzhanovskij 1975: 92.

Amara fodinae vicina Tschitschérine, 1894: Amara fodinae var. vicina Tschitschérine 1894: 387 (type locality: "Amdo-Plateau: Ankhur-kashan" [in Qinghai, China]; syntypes in ZRAS).

Specimens examined.

6 males, 3 females (CBJFU), China, Inner Mongolia, Genhe, Daxinganling Ecological Station , 50.8061°N, 121.5824°E, 726 m, 2018.08.28, Hongliang Shi leg. ; 2 males (CLYH), China, Hebei, Zhangjiakou, Zhuolu, Lingshan Scenic Spots , 40.054300°N, 115.487502°E, 1788 m, 2021.08.02, Yihang Li leg. ; 1 male, 1 female (CLYH), China, Hebei, Shijiazhuang, Chang'an District , 2022.08.20 -22, Ran Meng leg. ; 3 males (CLYH), China, Hebei, Zhangjiakou, Zhangbei, Caoyuantian Road West Line , 41.00010926°N, 114.62708997°E, 1523 m, 2022.09.04, Cong Wang leg. ; 4 males, 2 females (CBJFU), China, Hebei, Chongli , DF2, 41.0527°N, 115.3240°E, 1447 m, 2018.09, Wenhao Hu leg. ; 1 female (CBJFU), China, Beijing, Mentougou District, eastern slope of Donglingshan Mt , 40.0451°N, 115.4897°E, 1710 m, 2022.07.20, Hongliang Shi & Ganyan Yang leg. ; 2 male, 1 female (CBJFU), China, Beijing, Xiaolongmen Forestry park, 2014.VIII.17-22 ; 1 male, 2 females (CBJFU), Beijing, Songshan , 2005.8.21 ; 1 male (CLYH), China, Qinghai, Xining, The Party School of Qinghai Provincial committee of CPC, 36.631848°N, 101.778172°E, 2243 m, 2021.09, Bohan Cui leg. ; 1 male (CBJFU), China, Qinghai, Menyuan county, Xianmi, Talihua vill. 2784 m, N 37.2329 E 102.1135, 2017.VII.15, Shi HL et al leg .; 1 male (CBJFU), China, Qinghai, Gangca county, Qonj Xiang, Qinghaihu bank, 3200 m, 37.1973, 99.8039, 2017.VII.19 Shi HL leg. ; 1 male (CBJFU), Qinghai, Menyuan county, Meihua vill. 2784 m, N 37.2574 E 102.0869, 2020.VII.30 Liu YZ, Yin WQ lgt .

Chinese common name.

掘暗步甲.

Diagnosis.

Medium to large-sized species, BL = 11.0-13.0 mm; dorsum black or dark brown, legs usually dark brown; head relatively small, ~ 1/2 of pronotum maximum width, with two supraorbital setae. Pronotum (Fig. 7B ) cordate, widest near middle; densely punctate at basal region, impunctate at mid-anterior region; lateral margins with long sinuation before posterior angles; posterior angles nearly rectangular or acute, not or slightly protruded. Elytra elongated, widest near middle, with isodiametric microsculpture; lateral sides of abdominal sternites wrinkled. Male mesotibiae projection (Fig. 7C ) without defined denticle, distal half of tibiae prominently dilated. Male genitalia with short triangular apical lamella (Fig. 7F ), slightly bent rightward, narrowed to apex; gonocoxite 2 (Fig. 7G ) of ovipositor elongate, length ~ 2 × as greatest width, distinctly attenuate to apex.

Comparison.

This species is different from most of Chinese Amara Curtonotus by its male mesotibiae lacking denticles. From the shape of pronotum, A. (C.) fodinae is most similar to A. (C.) banghaasi , but these two species are different in many aspects: in A. (C.) fodinae the pronotum is widest near middle, but widest clearly before middle in A. (C.) banghaasi ; in A. (C.) fodinae , the male mesotibiae has no distinct denticles but has two distinct denticles in A. (C.) banghaasi ; in A. (C.) fodinae , the apex of apical lamella is a little acute and slightly bent rightwards, but more widely rounded and near straight in A. (C.) banghaasi ; in A. (C.) fodinae , the gonocoxite 2 is strongly elongate and attenuate to apex, while in A. (C.) banghaasi it is widely rounded at apex. Some small-sized individuals of A. (C.) harpaloides also might be confused with A. (C.) fodinae , but can be differentiated by the pronotum distinctly punctate on mid-anterior region, male mesotibiae with two distinct denticles and females with gonocoxite 2 much stouter.

Remarks.

Two subspecies have been recognized under this species (Hieke, 1993): A. (C.) fodinae vicina is smaller and less robust and distributed in the western provinces of China, while the nominotypical subspecies is a little larger and more robust.

Distribution.

China (Gansu, Hebei, Beijing, Heilongjiang, Jilin, Inner Mongolia, Shaanxi, Shanxi, Qinghai, Sichuan, Xinjiang, Mongolia, Tibet), Russia (Far East, east Siberia, west Siberia), Kyrgyzstan, Kazakhstan, Tajikistan, Turkmenistan, Europe.

Figures

Figure 7. Amara (Curtonotus) fodinae A dorsal habitus, male (Zhangbei, Hebei) B pronotum posterior angle C male mesotibia D lateral view of aedeagus E right paramere F apical lamella G female gonocoxite (Chongli, Hebei). Scale bar: 5 mm (A); 1 mm (B-E); 0.5 mm (F, G).