Anterhynchium ( Dirhynchium ) flavolineatum ( Smith, 1857 )

Anterhynchium ( Dirhynchium) flavolineatum ( Smith, 1857) View in CoL

( Figs 3 View FIGURE 3 , 7C View FIGURE 7 )

Odynerus flavo-lineatus Smith, 1857: 60 , female. Holotype, female, “ Java ” [ Indonesia], deposited in BMNH (type № 18.454), not examined.

Anterhynchium flavolineatum View in CoL : Nguyen 2015: 136.

Dianosis. This species differs from other species in the subgenus Dirhynchium by the following combination of characteristics: body smaller than other species (usually less than 13 mm); punctures on head and mesosoma weaker compared to other species; triangular area at base of propodeum is much longer than wide, bordered on each side by deep groove; declivity of propodeum not bordered dorsally by carina; body with more yellow marks compared to other species: antennal scape beneath, large yellow spot on each side of propodeum, broad yellow stripe on all tibiae, terga I–V with apical yellow bands, bands on terga I and II dialated laterally; in male, digitus almost rocket-shape apically, with dense and long setae on its surface medially; penis valve, in profile apical part strongly produced to triangle-shape.

Description of male genitalia ( Figs 3A–E View FIGURE 3 ). Genitalia were taken from specimens from Thanh Hoa Province. Tergum VIII widest at middle lengh, with lateral margins almost parallel at middle part, about 2.3 × as long as wide (at widest part), with narrow part at apex long (about 0.2 × its length) ( Fig. 3A View FIGURE 3 ). Parameral spine without setae. Volsella flattened, spatulate, wide on inner aspect, and without setae at top ( Fig. 3B View FIGURE 3 ). Digitus almost rocket-shape apically, with dense and long setae on its surface medially, about 3.2 × as long as wide (at widest part) ( Fig. 3C View FIGURE 3 ). Penis valve long ( Figs 3D, E View FIGURE 3 ), about 1.4× as long as basal apodeme, in profile apical part strongly produced to triangle-shape ( Fig. 3E View FIGURE 3 ); middle rod shorter than basal apodeme.

Material examined. VIETNAM. Tuyen Quang: 1 ♀, Na Hang, Na Hang NR, Bac Vang RS, 22°27’50”N 105°24’26”E, 153 m, 10.VI.2015, L.T.P. Nguyen, D.D. Nguyen & L.X. Truong GoogleMaps ; Bac Kan: 1 ♀, Na Ri, Lang San, 21°15’N 106°06’E, 270 m, 3–4.VIII.2012, J. Kojima, H Nugroho & IED-c GoogleMaps ; Son La: 1 ♂, Yen Chau, Muong Lum , 20.VI.2015, M.Q. Pham ; Thanh Hoa: 1 ♂, Xuan Lien NP, Hon Can, Thuong Xuan, Van Xuan, 19°52’27.5”N 105°14’20.8”E, 106 m, 24.VIII.2012, L.T.P. Nguyen (specimen with male genitalia dissected) GoogleMaps ; Quan Hoa, Pu Hu NR, [ 1 ♀, 20°29’10.7”N 104°57’9.3”E, 243m, 11.VI.2016, L.T.P. Nguyen; 1 ♂, 20°29’13.3”N 104°57’47.2”E, 13.VI.2016, L.X. Truong, D.D. Nguyen, N.T. Tran & L.N. Ha] GoogleMaps ; Nghe An: 1 ♂, Con cuong, Con Cuong ranger station, 3.VI.2018, T.V. Nguyen ; 1 ♂, Con Cuong, Pu Mat NP, Khe Choang ranger station, 18°57’44.8”N 104°41’0.8”E, 142 m, 1.IX.2020, N.T. Tran GoogleMaps ; 1 ♀, Pu Mat NP, 26.VII.2004, L.T.P. Nguyen ; Ha Tinh: 1 ♀, Huong Son, Son Tay , 19–24.V.2004, L.T.P. Nguyen ; Dak Nong: 1 ♂, Dak Som, Ta Dung NR, 11°50’16.1”N 107°59’16.7”E, 745 m, 6.V.2016, L.T.P. Nguyen, D.D. Nguyen & N.T. Tran (all deposited in IB) GoogleMaps .

Distribution. India: Arunachal Pradesh, Meghalaya, Sikkim, West Bengal; China: Hong Kong, Yunnan; Myanmar; Vietnam ( Tuyen Quang *, Bac Kan, Son La *, Thanh Hoa, Nghe An, Ha Tinh, Dak Nong *); Malaysia; Indonesia: Sumatra, Java, Kalimantan, Sumba, Flores.