(C) 2010 Liang Tang. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
For reference, use of the paginated PDF or printed version of this article is recommended.
A new species, Apteroloma zhejiangense sp. n., is described from Zhejiang Province, China. The habitus and sexual characters of the new species are illustrated. Apteroloma jinfo Růžička, is reported for the first time from China: Hubei and Hunan Provinces, and Apteroloma potanini (Semenov, 1893) from Ningxia and Henan Provinces. Presence of Apteroloma kozlovi Semenov-Tian-Shanskij & Znojko in Semenov-Tian-Shanskij, 1932 in South Korea is confirmed based on re-examined material.
Agyrtidae, Apteroloma, China, Coleoptera, new species, Palaearctic region, taxonomy
Apteroloma Hatch, 1927 is a large genus of Agyrtidae with 29 species in the world and 8 species in China. The Chinese species of the genus were recently revised by
In this paper, a new species from Zhejiang Province is described which considerably expands the distribution of the genus to East China. New province records of several Apteroloma species from China are provided and Apteroloma kozlovi from South Korea is confirmed based on re-examined material.
Material and methodsFor examination of genitalia, the last two male abdominal segments and last female abdominal segment were detached from the body after softening in hot water. The aedeagus together with other dissected pieces were mounted in Euparal (Chroma Geselschaft Schmidt, Koengen, Germany) on plastic slides. Photos of sexual characters were taken with Canon G7 attached to Olympus SZX 16 stereomicroscope; habitus photos were taken with a Canon macro photo lens MP-E 65mm attached to Canon EOS40D camera.
The measurements are abbreviated as follows:
EL length of elytra (measured from caudal tip of scutellum to elytral apex)
EW combined maximum width of elytra
PBW pronotal basal width
PML pronotal medial length
PMW pronotal maximum width
TBL total body length.
The specimens treated in this study are deposited in the following public and private collections:
JRUC Jan Růžička collection, Praha, Czech Republic
MPEC Michel Perreau collection, Paris, France
NMPC National Museum, Praha, Czech Republic (Jiří Hájek)
NSMT National Science Museum, Tokyo (Shûhei Nomura)
SHNU Department of Biology, Shanghai Normal University, P. R. China (Liang Tang)
Taxonomyurn:lsid:zoobank.org:act:115949B4-715B-4D54-8634-A515CED52E1D
http://species-id.net/wiki/Apteroloma_zhejiangense
Figs 1, 2, 5–8China, Zhejiang Province, Anji County, Longwangshan N. R. [ca. 30°22'N, 119°30'E ].
China: Zhejiang Province: Holotype. Male, glued on a card, with genitalia mounted on a plastic slide in Euparal, with labels as follows: “Mt. Longwangshan N. R. / 950–1200m / Zhejiang Prov. / 25-IV-2004 / Liang Tang leg.” “Holotype / Apteroloma zhejiangense / Tang, Li & Růžička det. 2011” [red handwritten label] (SHNU) and “Paratype / Apteroloma zhejiangense / Tang, Li & Růžička det. 2011” [yellow printed label] for the rest of the type series. Paratypes. 1 male and 1 female, Longwanshan, 3.X.2003, Hu & Tang leg. (SHNU); 1 male, Longwanshan, 950–1200m, 25.IV.2004, Liang Tang leg. (SHNU); 1 male, Longwanshan, 300–500m, 26.IV.2004, Li & Hu leg. (SHNU); 4 males and 1 female, Longwangshan, 950–1200m, 25.IV.2004, Liang Tang, Jia-Yao Hu & Li-Long Zhu leg. (SHNU); 6 males and 7 females, Longwangshan N. R., alt. 950–1200m, 25.IV.2006, Liang Tang, Rui-Fen Lin, Xin Yuan, Jin-Wen Li & Shan-Jia Shen leg. (1 pair in JRUC, rest in SHNU).
Measurements of the male holotype: TBL=7.3 mm, PMW/PML=1.49, PMW/PBW 1.19, EL/EW 1.33, EW/PMW 1.53.
Body large, 6.7–7.7 mm in length; dorsum in mature specimens dark brown; antennae, mouthparts, lateral portion of pronotum and legs uniformly ferruginous; dorsal surface shiny, with fine transverse microsculpture (pronotum discally with nearly isodiametric microsculpture); pronotum and elytra with scattered short erect setation; each mandible with two large acute teeth on inner edge before apex.
Pronotum widest in middle; anterior margin weakly emarginate; lateral margins distinctly bordered; weakly explanate; sides flat, only moderately raised and weakly sinuate posteriorly (Fig. 1); base wide, without impressions. Disc with scattered fine punctures, lateral and posterior areas heavily, densely punctured.
Elytra broadly oval. Each elytron with nine regular striae, third stria with ca. 49–59 medium-sized punctures; lateral margin smooth, without serration; epipleural keel narrow. Elytral epipleura with strong and dense punctures (Fig. 2). Metathoracic wings fully developed.
Male. Aedeagus evenly rounded with elongate, straight apex in lateral view (Fig. 5); sides before apex broadened, with blunt tip in dorsal view (Figs 6, 7).
Female. Ventrite VIII regularly rounded posteriorly, spiculum ventrale short, narrow and truncate anteriorly (Fig. 8). Ovipositor with transverse valvifer without setae; triangular, heavily sclerotized coxite bearing numerous setae; and stylus modified into strongly curved, apically glabrous scrapers.
Adult of Apteroloma in dorsal and ventral view. 1, 2 Apteroloma zhejiangense sp. n. (paratype female) 3, 4 Apteroloma jinfo (male from Hubei). Scales = 1 mm.
Sexual structures of Apteroloma. 5–8 Apteroloma zhejiangense sp. n. 9–12 Apteroloma jinfo (Hubei); 5, 9 aedeagus laterally 6, 10 aedeagus ventrally 7, 11 apex of aedeagus ventrally 8, 12 female ventrite VIII ventrally. Scales = 0.5 mm.
The new Apteroloma species, is most similar to Apteroloma jinfo, both species share the following characters in combination: body large (6.7–7.7 mm in length), dorsum dark brown with uniformly ferruginous appendages (Figs 1, 3), pronotum with wide base (Figs 1, 3), aedeagus with elongate apex in lateral view (Figs 5, 9) and sides before apex only slightly broadened in dorsal view (Figs 7, 11), female ventrite VIII with narrow spiculum ventrale (Figs 8, 12).
The recently published key of Chinese Apteroloma (
| 5 | Large species (body length 6.7–7.7 mm) | 5a |
| – | Small species (body length 5.4–6.8 mm) | 6 |
| 5a | Pronotum with sparse punctation discally, sides distinctly sinuate posteriorly (Fig. 3). Elytra with fine punctation (third stria with 62–67 punctures, Fig. 3). Elytral epipleura with fine punctures (Fig. 4). Aedeagus with narrow, elongate tip (Fig. 11). Ventrite VIII with spiculum ventrale elongate (Fig. 12). Central China (Chongqing, Hubei, Hunan) (Fig. 13) | Apteroloma jinfo Růžička, Schneider & Háva, 2004 |
| – | Pronotum with dense punctation discally, sides weakly sinuate posteriorly (Fig. 1). Elytra with strong punctation (third stria with 49–59 punctures, Fig. 1). Elytral epipleura with strong punctures (Fig. 2). Aedeagus with subapically broadly rounded, blunt tip (Fig. 7). Ventrite VIII with spiculum ventrale short (Fig. 8). Eastern China (Zhejiang) (Fig. 13) | Apteroloma zhejiangense sp. n. |
Adjective; named after Zhejiang Province, where the new species was discovered.
China (Zhejiang) (Fig. 13). So far known only from the type locality.
All specimens of the new species were collected by sifting leaf litters in broad-leaved forest, at altitudes 300–1200 m.
http://species-id.net/wiki/Apteroloma_jinfo
Figs 3, 4, 9–12China: Chongqing municipality: data of type series as inRůžička et al. (2004: 116); Hubei Province: 8 males and 8 females, Wufeng County, Houhe N. R. [ca. 30°33'N, 108°55'E ], 30.IV.2004, Li-Zhen Li leg. (1 pair in JRUC, rest in SHNU); Hunan Province: 3 males, Longshan Xian, Huoyan Xiang, Huoyan, entrance to Feihu Dong cave [ca. 29°12'N, 109°18'E ], 20.IX.1997, Y. Nishikawa leg. (1 male JRUC, 2 males NSMT).
Aedeagus has distinctly triangular, sub-sinuate apex in dorsal view in specimens from the type locality (
China (Chongqing, Hubei, Hunan) (Fig. 13). The type locality (Jinfo Shan) was erroneously located in Sichuan Province by
Distribution of Apteroloma zhejiangense sp. n. (empty circle) and Apteroloma jinfo (filled circles) in China.
http://species-id.net/wiki/Apteroloma_potanini
China: Ningxia Province: 1 male, Longde County, Qingliang, 35°36'19"N, 106°11'02"E , alt. 2400m, 26.VI.2008, Zi-Wei Yin leg. (SHNU); 1 male, Jingyuan County, Dongshanpo Forestry, Haizigou, 35°37'13"N, 106°15'42"E , alt. 2300m, 24. VI. 2008, Zi-Wei Yin leg. (SHNU); Henan Province: 2 specimens: Quanbaoshan, Xiong’er Shan, 34°07'N, 111°25'E , alt. 1700m, 23.–24.V.2010, broadleaved forest, beside forest path, first specimen in fly and second one at a big stone covered by moss, M. Perreau det. (MPEC); 1 specimen: same data, but alt. 1850m, pitfall trap (baited with beer and antifreeze) (MPEC).
China (Sichuan, Shaanxi, Gansu, Ningxia, Hubei, Hebei, Henan). First records from Ningxia and Henan Provinces.
http://species-id.net/wiki/Apteroloma_kozlovi
China: Shaanxi Province: 1 male, 110 km NNE Xian, Huayin vill., Hua Shan Mt., 34°29.5'N, 110°05.1'E , alt. 1275m, 8.–9.V.2011, granite cliff, valley of small brook, gravel stones close to water, M. Balke & J. Hájek leg. (NMPC); South Korea: 1 female, GanWeon-do, ChungChong [= Gangwon-do province, Chuncheon, ca. 37°52'N, 127°44'E ], 17.V.1984, K. Morimoto leg. (NSMT); 2 males, KangWeon-do, HongCheon-gun, Pupan-myon [= Gangwon-do province, Hoengseong-gun county (centroid ca. 37°29'N, 127°59'E ), Pupan myeon township (not located)], 20.V.1992, S. Nomura leg. (NSMT); 4 males, 2 females, Gyeongsamnam-do, Macheong-meon, Samjeong-li [= Gyeongsangnam-do province, Macheong-myeon township, Samjeong-ri village, ca. 35°21.5'N, 128°56.7'E ], 9.V.1991, S. Nomura leg. (NSMT).
The examined material from South Korea (reported as Apteroloma potanini by
China (Qinghai, Shaanxi, Shanxi, Hebei, Beijing); North Korea; South Korea.
We would like to express our sincere gratitude to Dr. A. F. Newton (Chicago, USA) for improving the manuscript and sending us papers, to Dr. W. Schawaller (Stuttgart, Germany) for kindly sending us papers, to all Chinese collectors mentioned in this paper. Michel Perreau (Paris, France) is thanked to share unpublished data on Apteroloma potanini and Jiří Hájek (NMPC) and Shûhei Nomura (NSMT) for loan of material of Apteroloma under their care. The research was supported by National Natural Science Foundation of China (No. 30870323), National Natural Science Foundation of Shanghai (No. 10ZR1421600) to L. Tang and L.-Z. Li, and by grant of the Grant Agency of the Czech Republic (No. 206/07/1053) to J. Růžička.