Empria nigroterga Park & Lee, 2019

Park, Bia, Prous, Marko & Lee, Jong-Wook, 2019, Taxonomic review of the genus Empria Lepeletier & Serville (Hymenoptera, Tenthredinidae) in South Korea: morphological and molecular identification of two new species, Journal of Hymenoptera Research 74, pp. 1-25 : 1

Empria nigroterga Park & Lee sp. nov.

Figs 4 , 6F , 7F

Type specimens examined.

[Holotype] South Korea: ♀, Chungcheongnam-do, Seosan-si, Haemi-myeon, Daegok-ri 880, Hanseo Univ. , 36°41'30"N, 126°34'50"E, 22.IV-6.V.2009 (MT), J.W. Lee (YNU; YNU-Sym0023); [Allotype] South Korea : ♂, same locality as holotype, 14-22.IV.2009 (MT), J.W. Lee (YNU; YNU-Sym1160); [Paratypes] South Korea : 1♂, Chungcheongbuk-do, Danyang-gun, Danyang-eup, Cheondong-ri , 36°57'25.1"N, 128°25'47.6"E, 22.IV-4.V.2009, J.W. Lee (YNU; YNU-Sym1161) ; 1♀ 1♂, same locality, Mt. Sobaeksan, Cheondong valley , 36°57'00"N, 128°26'00"E, 19-30.IV.2007 (MT), J.W. Lee (YNU; 1♀, YNU-Sym1162; 1♂, YNU-Sym1163) ; 1♀, Chungcheongnam-do, Seosan-si, Haemi-myeon, Daegok-ri 880, Hanseo Univ. , 36°41'30"N, 126°34'50"E, 2-14.IV.2009 (MT), J.W. Lee (YNU; YNU-Sym1164) ; 1♀, same locality, 22.IV-6.V.2009 (MT), J.W. Lee (YNU; YNU-Sym1165) ; 1♀, Daegu-si, Nam-gu, Mt. Apsan , 18.V.1996, Y.J. Jang (YNU; YNU-Sym1166) ; 1♀, Daejeon-si, Dong-gu, Daejeon Univ. , 36°20'05"N, 127°27'38"E, 1-17.V.2006 (MT), J.W. Lee (YNU; YNU-Sym1176) ; 2♀♀, Gangwon-do, Chuncheon nr. Chongpyongsa , 23.V.1992, A. Shinohara (NSMT; 1♀, NSMT240; 1♀, NSMTHYM2012111008) ; 1♂, Gangwon-do, Hongcheon-gun, Seo-myeon , Magok-ri , 37.7162N, 127.5908E, 3-17.V.2006 (MT), P. Tripotin (USNM; USNM2051678_017) ; 1♀, Gangwon-do, Mt. Odaesan, Mirugam ( Bukdaesa ), Alt. 1300 m, 28.V.1991, A. Shinohara (NSMT; NSMTHYM2012111007) ; 1♀, same locality, 29.V.1992, A. Shinohara (NSMT; NSMTHYM2012111009) ; 1♀, same locality, 25.V.1993, A. Shinohara (NSMT; NSMT237) ; 1♂, same locality, 1.VI.1993, A. Shinohara (NSMT; NSMT142) ; 1♀, same locality, 22.V.2002, A. Shinohara (NSMT; NSMT238) ; 1♂, same locality, 25.V.2002, A. Shinohara (NSMT; NSMT236) ; 1♀, same locality, 28.V.2002, A. Shinohara (NSMT; NSMT239) ; 1♀, same locality, 25.V.2008, A. Shinohara (NSMT; NSMTHYM2012111006) ; 1♂, Gangwon-do, Sokcho-si, Mt. Seoraksan National Park , Misiryeong services ( Sinseongbong direction), 1.IV-24.VI.2010 (MT), J.C. Jeong (YNU; YNU-Sym1167) ; 3♂♂, Gyeonggi-do, Gapyeong-gun, Cheongpyeong-myeon, Goseong-ri , Mt. Homyeongsan , Alt. 168 m, 37°43'15.0"N, 127°29'18.9"E, 8-31.IV.2009 (MT), J.W. Lee (YNU; YNU-Sym1168~1170) ; 1♀, Gyeonggi-do, Yangpyeong-gun, Yongmun-myeon, Yeonsu-ri , Mt. Youngmunsan , Alt. 324 m, 37°31'49.5"N, 127°34'18.8"E, 1-26.V.2009 (MT), J.W. Lee (YNU; YNU-Sym1171) ; 1♀, Gyeongsangbuk-do, Birosa , 5.V.1999, S.M. Ryu (YNU; YNU-Sym1172) ; 2♂♂, Gyeongsangbuk-do, Chilgok-gun, Dongmyeong-myeon, Hakmyeong-ri , San 25 (Site-15), 36°02'46.08"N, 128°33'45.41"E, 8.V.2014, J.W. Lee (1♂, YNU-Sym 1174 in NIBR; 1♂, YNU-Sym 1175 in YNU) ; 2♂♂, Gyeongsangbuk-do, Gunwi-gun, Bugye-myeon, Dongsan-ri , San 75, Odoam , 36°01'29.04"N, 128°41'31.11"E, 25.IV-9.V.2015 (MT), J.W. Lee (YNU; YNU-Sym1173, 1177) ; 1♀, Gyeongsangbuk-do, Mt. Sobaeksan, Huibang valley , 3.V.1997, S.H. Park (YNU; YNU-Sym1178) ; 1♀, Jeollabuk-do, Muju-gun, Mt. Deokyusan , 16.V.1999, S.M. Ryu (YNU; YNU-Sym1179) ; 1♀, Jeollabuk-do, Wanju-gun, Dongsang-myeon, Daea-ri , San 1-2, Daea Arboretum , 35°58'24.24"N, 127°18'13.53"E, 16-30.IV.2013, J.M. Park (YNU; YNU-Sym1180); Russia : 1♂, Primorsky Krai, Anisimovka, Alt. 300 m, 1.VI.1994, A. Shinohara (NSMT; NSMT234) ; 2♀♀, Primorsky Krai, Anisimovka, 70 km E Vladivostok, Alt. 250 m, 43.16666N, 132.8E, 7.VI.1993, A. Taeger (SDEI; without ID numbers) ; 1♂, Primorsky Krai, Foot, Mt. Litvoka, Anisimovka , Alt. 400 m, 30.V.1994, A. Shinohara (NSMT; NSMT235) ; 1♀, same data (NSMT; NSMT241) ; 1♀, Primorsky Krai, Tikhoye nr. Razdolnoye, 36 km S Ussuriysk, Alt. 100 m, 43.6N, 131.86667E, 22.V.1993, A. Taeger (SDEI; DEI-GISHym15184) ; 2♀♀, Primorsky Krai, Ussuri Nature Reserve, Alt. 150 m, 43.644N, 132.346E, 20.V.2016, K. Kramp, M. Prous & A. Taeger (SDEI; 1♀, DEI-GISHym86132; 1♀, without ID number) ; 1♀, Primorsky Krai, Ussurijskij Res. , 9-12.VI.1995, A. Lelej (NSMT; NSMT205) ; 1♀, Primorsky Krai, Vladivostok, Sedanka, Alt. 100 m, 43.21N, 131.973E, 17.V.2016, K. Kramp, M. Prous & A. Taeger (SDEI; DEI-GISHym86721) .

Description.

Female (holotype, YNU-Sym0023) ( Figs 4A, C, E-G , 6F ). Body length 7.4 (7.0-8.7) mm.

Color. Body black, except posterodorsal pronotum, cenchrus, apical half of fore femur anteriorly, most of fore and middle tibiae anteriorly white; all tibiae with white ring at base; mandible at apex reddish brown; labial and maxillary palps dark brown; abdominal terga with 1 (0-2) pairs of whitish (pale) patches. Wings subhyaline; venation dark brown; body with yellowish setae ( Fig. 4A, C, F, G ).

Head. Length of postocellar area much shorter than width, 1.8 (1.8-2.3) times as long as diameter of lateral ocellus, and POL: OOCL = 1: 0.9 (0.8-1.0) ( Fig. 4E ). Clypeus strongly punctate with median keel. Malar space 1.5 (1.3-1.7) times as long as diameter of median ocellus ( Fig. 4F ). Maximal temple length 1.3 (1.1-1.3) times as long as minimal temple length in lateral view. Flagellum 2.0 (1.9-2.0) times as long as head width.

Thorax. Propleura meeting (not meeting) in front. Vein 2A+3A in fore wing complete; vein m-cu in hind wing present, cell M closed. Claws with small denticle ( Fig. 4K ).

Abdomen. Ovipositor sheath extending beyond apex of abdomen; dorsal and ventral margins parallel and apex rounded (obliquely truncated) ( Fig. 4C ). Lancet with 18-19 serrulae, membrane between serrulae flat basally and weakly convex apically; each serrula circularly protruding basally ( Fig. 6F ), and with a basal denticle and 3-5 distal denticles.

Male (allotype, YNU-Sym1160) ( Figs 4B, D, H-K , 7F ). Body length 6.4 (5.1-6.6) mm. Similar to female, but abdominal segments entirely black (with narrow posterior whitish margins) ( Fig. 4B, D, I ). Length of postocellar area 1.8 (1.8-2.0) times as long as diameter of lateral ocellus ( Fig. 4H ). Malar space 1.0 (0.9-1.3) times as long as diameter of median ocellus ( Fig. 4I ). Maximal temple length 1.3 (1.3-1.4) times as long as minimal temple length in lateral view. Flagellum 2.6 (2.5-2.7) times as long as head width. Posterior margin of sternum 9 rounded ( Fig. 4J ). Penis valve as in Fig. 7F , valviceps almost equal in length to valvura.

Genetic data.

Based on the COI barcode region of two specimens (Russia and South Korea), the distance between them is 0.5%. The nearest neighbour, diverging by a minimum of 5.0%, is E. zhangi Wei & Yan. Based on the nuclear data of one specimen (Russia), the nearest neighbour, diverging by a minimum of 1.4%, is E. zhangi Wei & Yan.

Host plant.

Unknown.

Distribution.

South Korea, Russia.

Etymology.

The species name, a noun, is formed from the Latin nigro and terga, and refers to black color of abdomen.

Remarks.

Belongs to E. quadrimaculata group (as sp7 in Prous 2012). Numerous additional specimens (36 females, 76 males in YNU) studied from South Korea were not included in the type series. Although most Empria species have pairs of pale patches on the abdominal terga (one of the general morphological characters of Empria ), this new species has the abdominal terga with reduced pale patches.

Figures

Figure 4. Empria nigroterga sp. nov. from Chungnam, South Korea: A, C, E-G holotype, YNU-Sym 0023 B, D, H-K allotype, YNU-Sym 1160 A, B dorsal habitus C, D lateral habitus E, H dorsal head F, I frontal head G ventral abdomen at apex J sternum 9 K claw. Scale bars: 2 mm (A, B); 1 mm (C, D); 0.5 mm (E-J); 0.1 mm (K).

Figure 6. Female lancets. A Empria candidata from Gangwon, South Korea B E. tridentis from Gangwon, South Korea C E. wui from Shanxi, China (W 08 - 03 a) D E. zhangi from Jeonnam, South Korea E E. lycroi, sp. nov. from Primorsky Krai, Russia (paratype, NSMT 232) F E. nigroterga, sp. nov. from Daejeon, South Korea (paratype, YNU-Sym 1176). Scale bars: 0.1 mm (A-F).

Figure 7. Male penis valves. A Empria candidata from Gangwon, South Korea B E. tridentis from Gangwon, South Korea C E. wui from Gyeongbuk, South Korea D E. zhangi from Jeonnam, South Korea E E. lycroi, sp. nov. from Primorsky Krai, Russia (paratype, DEI-GISHym 83873) F E. nigroterga, sp. nov. from Gyeongbuk, South Korea (paratype, YNU-Sym 1173). Scale bars: 0.1 mm (A-F).