Urostylis striicornis Scott, 1874

Kim, Junggon, Roca-Cusachs, Marcos & Jung, Sunghoon, 2018, Taxonomic review of the genus Urostylis (Hemiptera: Heteroptera: Urostylididae) from the Korean Peninsula, with description of a new species, Zootaxa 4433 (3), pp. 445-456 : 450-451

Urostylis striicornis Scott, 1874

( Figures. 1D , 2D, J , 3D , 4D , 5D, I )

Urostylis striicornis Scott, 1874: 360 .

DIAGNOSIS: Pronotum and scutellum with dark punctures; membrane transparent with V-shaped dark marking ( Figure 1D ); lateral margin of genital capsule straight, apex relatively thick with setae in dorsal view ( Figure 2D ); process of genital capsule long, exceeding dorsal wall of capsule and bifurcated in lateral view ( Figure 2J ), process broadly developed, heart-shaped ( Figure 3D ); paramere straight, curved subapically ( Figure 4D ).

DESCRIPTION: Male: Body oval and elongated, length 12.02–13.16. COLOR. mostly greenish. Head: generally greenish, sometimes reddish; antennae almost brown, apex of third, fourth and fifth segment dark brown; rostrum green, apex of fourth rostral segment dark brown. Thorax: Pronotum and scutellum with dark punctures; hemelytra mostly greenish with entirely dark punctures; membrane transparent with V-shaped dark marking; legs almost green, base of tibia with dark band, apical part brown; third tarsal segment brown. Abdomen: entirely green. SURFACE AND VESTITURE: Body slightly glossy, covered with silvery short pubescences; antenna with densely short pubescences; legs with setae. STRUCTURE. Head: width of head longer than length of mandibular plate, projected as long as clypeus dorsally; length of antennae longer than length of body, first segment longer than 2 times length of head; rostrum not reaching to midcoxae. Thorax: anterior and posterior margin of pronotum rounded; mesal length of scutellum longer than width; lateral margin of hemelytra rounded; legs generally long; femur distinctly thick; first tarsal segment as long as third segment. Abdomen: margin rounded, not reaching to apex of membrane. GENITALIA: lateral margin of genital capsule straight, apex with setae in dorsal view, relatively thick ( Figure 2D ); median process of genital capsule long, exceeding dorsal wall of capsule, bifurcated in lateral view ( Figure 2J ), process broadly developed, heart-shaped ( Figure 3D ); paramere straight, curved subapically ( Figure 4D ).

Female: Body oval and elongated, length 13.21–14.18. COLOR: as in male. SURFACE AND VESTITURE: as in male. STRUCTURE: as in male except for genital segment. GENITALIA: lateral seventh abdominal segment rounded, but not prominent, central seventh abdominal segment concave and flat; gonocoxites 8 large and not touching at apex, reaching a bit less than the center of laterotergite 9; laterotergites 8 distinctly elongated and ovoid, much longer than gonocoxite 8, reaching the same point with laterotergite 9; laterotergites 9 elongated, distinctly prominent at center, in contact at base and apex, but not touching at center ( Figure 5D ); spermatheca coiled, robust and widened at sclerotized apices ( Figure 5I ).

MEASUREMENTS (IN MM): Male (n=3)/Female (n=2) Body length, head-apex of membrane: 12.02–13.16/ 13.21–14.18; head length, excluding neck: 1.13–1.28/1.27–1.38; head width, including compound eyes: 1.68–1.89/ 1.84–1.99; 1st antennal segment length: 2.51–2.67/2.70–2.92; 2nd antennal segment length: 3.14–3.42/3.37–3.86; 3rd antennal segment length: 1.49–1.65/1.56–1.60; 4th antennal segment length: 2.53–2.72/2.44–2.78; 5th antennal segment length: 2.01–2.14/1.88–2.14; total antennal length: 11.68–12.59/11.95–13.30; mesal pronotal length: 1.99–2.09/2.01–2.42; basal pronotal maximal width (straight): 4.25–4.48/4.33–4.90; anterior scutellar width: 2.76– 2.92/2.77–3.06; mesal scutellar length: 3.31–3.46/3.34–3.90; costal margin length (straight): 7.23–7.60/7.53–8.45; maximal width across hemelytron: 2.26–2.45/2.39–2.81; foreleg (femur: tibia: tarsus): 3.54–3.78:3.02–3.19:1.39– 1.48/3.04–3.17:3.12–3.42:1.29–1.45; midleg (femur: tibia: tarsus): 3.09–3.22: 3.04–3.19:1.43–1.50/3.17– 3.28:3.32–3.43:1.51–1.58; hindleg (femur: tibia: tarsus): 4.68–4.89:4.22–4.49:1.61–1.70/4.28–4.84:4.89– 5.21:1.81–1.84.

MATERIALS EXAMINED: [ CNU] 1♂, Gayang-dong, Dong-gu, Daejeon, Korea, 25.v.2006, M.A. Kang; [ CNU] 1♂, Chungnam National Univ., Gung-dong, Yuseong-gu, Daejeon, Korea, 20.iv.2007, J.E. Yoo; [ CNU] 2♀♀, Kyejok-san (Mt), Jang-dong, Daedeok-gu, Daejeon, Korea, 4.iv.2007, C.M. Baek; [ CNU] 1♂, Sannae-myeon, Namwon-si, Jeollabuk-do, Korea, 9.vi.2007, J.I. Beom; [ CNU] 1♂, Haesanryeong, Dongchon-ri, Hwacheon-eup, Hwacheon-gun, Gangwon-do, Korea, 15.vii.2015, J.G. Kim; [ CNU] 1♂, Haesanryeong, Dongchon-ri, Hwacheoneup, Hwacheon-gun, Gangwon-do, Korea, 16.vii.2015, J.G. Kim.

HOSTS: Unknown.

DISTRIBUTIONS: China (Central, North, Southern West), Japan, Korea, Russia (Far East).

Figures

FIGURE 1. Dorsal habitus of Urostylis spp. A: U. koreana sp. nov.; B: U. annulicornis; C: U. lateralis; D: U. striicornis; E: U. trullata; F: U. westwoodii. Scale bar: 1mm.

FIGURE 2. Genital capsule of Urostylis spp in dorsal view and in lateral view. A, G: U. koreana sp. nov.; B, H: U. annulicornis; C, I: U. lateralis; D, J: U. striicornis; E, K: U. trullata; F, L: U. westwoodii; A–F: dorsal view; G–L: lateral view. Scale bar: 1mm.

FIGURE 3. Genital process of Urostylis spp. in caudal view (process was illustrated in dark). A: U. koreana sp. nov.; B: U. annulicornis; C: U. lateralis; D: U. striicornis; E: U. trullata; F: U. westwoodii. Scale bar: 1mm.

FIGURE 4. Paramere of Urostylis spp. A: U. koreana sp. nov.; B: U. annulicornis; C: U. lateralis; D: U. striicornis; E: U. trullata; F: U. westwoodii. Scale bar: 1mm.

FIGURE 5. Female genitalia of Urostylis spp. A–E: female genital plates (with drawings); F–J: spermatheca; A, F: U. koreana sp. nov.; B, G: U. annulicornis; C, H: U. lateralis; D, I: U. striicornis; E, J: U. westwoodii. VII: seventh abdominal segment; gc8: gonocoxites 8; la8: laterotergites 8; la9: laterotergites 9.