Graptopeltus koreanus Kim, Lee & Jung

Kim, Junggon, Lee, Hodan & Jung, Sunghoon, 2016, First record of the genus Graptopeltus Stål (Hemiptera: Heteroptera: Rhyparochromidae) from the Korean Peninsula, with description of a new species, Zootaxa 4175 (2), pp. 196-200 : 197-199

Graptopeltus koreanus Kim, Lee & Jung sp. nov.

( Figs. 1 A–B, 2A–E, 3)

Diagnosis. Differs from other Palaearctic Graptopeltus species by body dark brown; pronotal margin dark and yellowish pale brown densely covered with dark punctures; margin of hemelytra with dense dark punctures; corium with small dark spot in middle part ( Figs. 1 A–B, 3).

Description. Male ( Fig. 1 A): Body broadly oval. COLORATION: Mostly mottled dark brown with distinct dark punctures. Head: dark brown; compound eyes fuscous; ocelli dark brown; antennae almost dark brown, apex of each segment pale brown; clypeus dark brown; rostrum dark brown. Thorax: pronotum dark brown; anterior lobe dark brown; lateral margin dark brown with mottled pale brown; posterior lobe mottled dark brown; scutellum dark brown; with pale spots at middle; ostiolar peritreme dark brown; hemelytra mottled brown; 2/3 anterior part of lateral margin of hemelytra yellowish pale brown with densely dark punctures; corium with dark brown marking; membrane grayish dark brown, veins dark brown; legs dark brown except for pale apex of femur; fore femur dark brown with reddish brown stripe; tarsus dark brown, base reddish brown. Abdomen: entirely dark brown. SURFACE AND VESTITURE: Body with distinct punctures, glossy; frons with long pubescence; clypeus with dense pubescence; antennae with short and thin pubescence generally, first antennal segment with suberect setae; legs with dense pubescences and longer spines; claw with long three pubescences. STRUCTURE: Head: projected frontally; compound eyes touching anterior margin of pronotum; vertex width about two times as long as first antennal segment; clypeus projected dorsally; first antennal segment distinctly thicker than others, second antennal segment 3 times as long as first antennal segment; rostrum reaching to midcoxae. Thorax: Pronotum trapezoidal with rounded lateral margin; scutellum equilateral; lateral margin of hemelytra rounded; legs generally thick; fore femur thicker than others with one process lateroventrally; mid and hind tibia with spines. Abdomen: rounded, reaching to apex of hemelytra. GENITALIA: Pygophore pentagonal dorsally, posterior margin convex laterally ( Figs. 2 A–B); paramere tapered, apex round, with a process at middle, with sparse setae ( Fig. 2 C); aedeagus membranous with distinct two long lobes and small lobes ( Fig. 2 D).

Female ( Fig. 1 B): COLORATION: A s in male. SURFACE AND VESTITURE: As in male. STRUCTURE: Somewhat more rounded oval in overall shape than male. GENITALIA: Spermatheca long, especially much thicker in apical part, with distinctly circular apex connecting to trumpet-shaped structure ( Fig. 2 E).

Measurements (in mm). Male (n = 2). Body: length 8.30–8.33. Head: length 1.24–1.25, width 1.64–1.66, eye width 0.29–0.30, interocular width 1.05–1.08; Rostrum (average/min–max): proportion of each segment (I) 0.88/ 0.87–0.89: (II) 0.97/0.94–0.99: (III) 0.81/0.80–0.82: (IV) 0.69/0.67–0.70; Antenna (average/min–max): proportion of each segment (I) 0.51/0.50–0.51: (II) 1.32/1.31–1.33: (III) 1.04/1.02–1.06: (IV) 1.23/1.21–1.25; Pronotum: length 2.16–2.18, width 3.31–3.32; Scutellum: length 1.83–1.87, width 1.83–1.86; Hemelytron: length 5.55–5.57; Abdomen: length 3.43–3.50, width 3.54–3.57; Leg: fore femur: length 2.10–2.12, width 0.72–0.73, middle femur: length 2.27–2.31, width 0.41–0.44, hind femur: length 2.86–2.88, width 0.47–0.49, fore tibia: length 1.96–2.00, width 0.33–0.33, middle tibia: length 1.95–1.97, width 0.18–0.18, hind tibia: length 3.15–3.21, width 0.21–0.22.

Female (n = 3). Body: length 9.17–9.22; Head: length 0.90–0.93, width 1.69–1.71, eye width 0.30–0.33, interocular width 1.14–1.16; Rostrum (average/min–max): proportion of each segment (I) 1.00/0.99–1.01: (II) 1.10/1.09–1.10: (III) 0.86/0.84–0.88: (IV) 0.69/0.67–0.70; Antenna (average/min–max): proportion of each segment (I) 0.57/0.56–0.58: (II) 1.35/1.33–1.36: (III) 1.13/1.11–1.15: (IV) 1.25/1.24–1.26; Pronotum: length 2.00–2.04, width 3.70–3.73; Scutellum: length 2.18–2.20, width 2.18–2.18; Hemelytron: length 6.40–6.44; Abdomen: length 4.10–4.18, width 4.19–4.22; Leg: fore femur: length 2.29–2.30, width 0.81–0.83, middle femur: length 2.30–2.33, width 0.47–0.48, hind femur: length 3.27–3.29, width 0.57–0.57, fore tibia: length 2.07–2.09, width 0.36–0.38, middle tibia: length 2.16–2.18, width 0.22–0.24, hind tibia: length 4.75–4.77, width 0.23–0.23.

Distribution. Korea (whole region).

Etymology. Named after the type locality, the Korean Peninsula.

Biology. Live adult is usually found on ground, especially on sand around river or stream ( Fig. 3 ), unlike other congeners that are usually found on plants.

Material examined. Holotype Ƌ: Chungnam National University, Gung-dong , Yuseong-gu , Daejeon, Korea, 30.vii.2015, H.D. Lee, ( CNU) ; Paratypes: Woocheon-myeon , Hoengseong-gun, Gangwon-do, Korea, 28.iii.2015, G.H Kim, 1♂ ( CNU); Chungnam National University, gung-dong, Yuseong-gu , Daejeon, Korea, 30.vii.2015, H.D. Lee, 1♂ 1♀ ( CNU) ; Gobangsan-ri , Bangsan-myeon , Yanggu-gun, Gangwon-do, Korea, 16.vii.2015, J.G. Kim, H.D. Lee, 1♀ ( CNU) ; Seong-yeon-ri, Cheongso-myeon , Boryeong-si, Chungcheongnam-do, Korea, 27.vii.2015, J.G. Kim, S.M. Oh, H.D. Lee, 1♀ ( CNU) ; Jochiwon-eup , Sejong-si, Korea, 12.xii.2015, G.H. Kim, 1♀ ( CNU) .

Figures

FIGURES 1. Graptopeltus koreanus Kim, Lee & Jung, sp. nov. A: dorsal habitus, Holotype ♂; B: ditto, Paratype ♀. Scale bar: 2 mm.

FIGURES 2. Genital structures of Graptopeltus koreanus Kim, Lee & Jung, sp. nov. A: pygophore in dorsal view; B: ditto, in lateral view; C: paramere; D: aedeagus; E: spermatheca. Scale bar: A – B: 0.5 mm; C: 0.2 mm; D: 1 mm; E: 0.2 mm.

FIGURES 3. Live adult of Graptopeltus koreanus Kim, Lee & Jung, sp. nov. on ground.