Empria lycroi Prous & Park, 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 lycroi Prous & Park sp. nov.

Figs 3 , 6E , 7E

Type specimens examined.

[Holotype] Russia: ♀, Primorsky Krai, Vladivostok, Sedanka, Alt. 100 m, 43.21N, 131.973E, 17.V.2016, K. Kramp, M. Prous & A. Taeger (ZIN; DEI-GISHym86081); [Allotype] Russia : ♂, Primorsky Krai, Novonezhino 4 km W, Alt. 70 m, 43.227N, 132.544E, 7.V.2019, M. Prous & S. Tuerk (SDEI; DEI-GISHym80769); [Paratypes] South Korea : 1♀, Gangwon-do, Mt. Odaesan, Mirugam ( Pugdaesa ), Alt. 1300 m, 37.8N, 128.56667E, 30.V.1992, A. Shinohara (NSMT; NSMT231) ; 1♀, same locality, 28.V.1998, A. Shinohara (NSMT; NSMT207); Russia : 1♀, Primorsky Krai, Anisimovka, Alt. 300 m, 43.16666N, 132.8E, 1.VI.1994, A. Shinohara (NSMT; NSMT232) ; 1♀, same locality, 3.VI.1995, A. Leleij (NSMT; NSMT141) ; 1♂, same locality, 10 km NW, Alt. 150 m, 43.195N, 132.665E, 9.V.2019, M. Prous & S. Tuerk (SDEI; DEI-GISHym80812) ; 1♀, Primorsky Krai, Gornotajozhnoe, 1 km E, Alt. 150 m, 43.694N, 132.168E, 19.V.2016, K. Kramp, M. Prous & A. Taeger (SDEI; DEI-GISHym80068) ; 1♀, same locality, 12.V.2019, M. Prous (SDEI; DEI-GISHym80704) ; 1♀, Primorsky Krai, Kamenushka 5 km E, Alt. 140 m, 43.636N, 132.294E, 13.V.2019, M. Prous (SDEI; DEI-GISHym80712) ; 1♀ 1♂, Primorsky Krai, Novonezhino 4 km W, Alt. 70 m, 43.227N, 132.544E, 7.V.2019, M. Proshchalykin (ZIN; without ID numbers) ; 4♀♀ 3♂♂, same data, M. Prous & S. Tuerk (3♀♀, 3♂♂ in SDEI; 1♀, DEI-GISHym80776; 2♀♀, without ID numbers; 3♂♂, DEI-GISHym80642, DEI-GISHym80770, DEI-GISHym83873; 1♀ in YNU; without ID number) ; 1♀, Primorsky Krai, Tigrovoy, Alt. 300 m, 43.18333N, 132.9E, 5.VI.1995, A. Shinohara (NSMT; NSMT233) .

Description.

Female (holotype, DEI-GISHym86081) ( Figs 3A, C, E-G, K , 6E ). Body length 5.9 (5.2-6.8) mm.

Color. Body black, except labial and maxillary palps, posterodorsal margin of pronotum, tegula, and cenchrus white; labrum yellow (yellowish brown); mandible at apex reddish brown; apex of all coxae slightly, all trochanters and trochantelli, fore and middle femora anteriorly and posteriorly, apex of hind femur slightly (black to extensively pale), fore and middle tibiae anteriorly and posteriorly, basal 1/3 (1/4-2/3) of hind tibia, fore and middle tarsi anteriorly, and basal 1/3 (1/4-2/3) of hind tarsomere 1 pale; abdominal segments with narrow posterior whitish (pale) margins, and abdominal terga with 4 (3-5) pairs of whitish (pale) patches. Wings hyaline; venation brown; body with yellowish setae ( Fig. 3A, C, F, G ).

Head. Length of postocellar area much shorter than width, 2.9 (2.6-2.9) times as long as diameter of lateral ocellus, and POL: OOCL = 1: 0.9 (0.9-1.1) ( Fig. 3E ). Clypeus weakly rugulose with median keel. Malar space 1.1 (1.1-1.4) times as long as diameter of median ocellus ( Fig. 3F ). Maximal temple length 1.3 (1.2-1.3) times as long as minimal temple length in lateral view. Flagellum 1.4 (1.4-1.6) times as long as head width.

Thorax. Propleura not meeting in front. Vein 2A+3A in fore wing complete; vein m-cu in hind wing present, cell M closed. Claws without denticle (Fig. K, L).

Abdomen. Ovipositor sheath not or slightly extending beyond apex of abdomen; dorsal and ventral margins parallel basally and ventral margin apically narrowing towards dorsal margin ( Fig. 3C ). Lancet with 16-17 serrulae, membrane between serrulae flat; each serrula subtriangularly protruding basally ( Fig. 6E ), and with indistinct denticles apically.

Male (allotype, DEI-GISHym80769) ( Figs 3B, D, H-J, L , 7E ). Body length 4.4 (4.4-5.2) mm. Similar to female, but abdominal terga with 3 pairs of whitish patches ( Fig. 3B, D, I ). Length of postocellar area 2.4 (2.2-2.4) times as long as diameter of lateral ocellus ( Fig. 3H ). Malar space 0.9 (0.8-0.9) times as long as diameter of median ocellus ( Fig. 3I ). Flagellum 1.8 (1.7-1.9) times as long as head width. Posterior margin of sternum 9 truncated ( Fig. 3J ). Penis valve as in Fig. 7E , valviceps shorter than valvura.

Genetic data.

The COI sequences of three specimens are identical. The nearest neighbour, diverging by a minimum of 7.0%, is E. liturata (Gmelin). Based on the nuclear data of three specimens (Russia), the maximal distance between them is 0.03% (0.07% when counting heterozygous positions in the holotype female). The nearest neighbour, diverging by a minimum of 2.0%, is the North American E. coryli (Dyar).

Host plant.

Unknown.

Distribution.

South Korea, Russia.

Etymology.

The species name is an arbitrary combination of letters, to be treated as a noun.

Remarks.

The most similar species is E. coryli from North America. Females of E. coryli (based on Smith 1979) are even paler than E. lycroi (character states for this species in the parenthesis): mesepisternum partly pale (completely black) and abdominal terga with 5-6 pairs of whitish patches (3-5). Males of E. coryli apparently also have more pairs of whitish patches ( Smith 1979) than E. lycroi . The penis valve of E. coryli has large irregular spines on the dorsal margin of valviceps that are lacking in E. lycroi .

Figures

Figure 3. Empria lycroi sp. nov. from Primorsky Krai, Russia: A, C, E-G, K holotype, DEI-GISHym 86081 B, D, H-J, L allotype, DEI-GISHym 80769. 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, L claw. Scale bars: 2 mm (A, B); 1 mm (C, D); 0.5 mm (E-J); 0.1 mm (K, L).

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).