A new species of the genus Capsus Fabricius (Hemiptera: Heteroptera: Miridae: Mirinae) from the Korean Peninsula, with a key to the Korean Capsus species Author Kim, Junggon Author Park, Haechul Author Heiss, Ernst Author Jung, Sunghoon text Zootaxa 2015 3905 4 585 592 journal article 42372 10.11646/zootaxa.3905.4.10 b79f97c7-2d48-4d24-9511-f4a54ae861b7 1175-5326 232006 E71BAD63-78B8-4F4C-BBDA-E9E4C391F4AD Capsus koreanus Kim & Jung sp. nov. ( Figs. 1–8 ) Diagnosis. Differs from other species of Capsus by the brightly reddish brown pronotum, scutellum, embolial outer margin and legs ( Fig. 1 ), and thin spicule with hollowed line of apex of spicule ( Figs. 7–8 ). FIGURES 1–3. 1, Capsus koreanus Kim & Jung sp. nov. , Holotype ♂ from the Korean Peninsula; 2, live adult on host plant; 3, habitat of the new species (grassland). Scale bar: 1mm. Description. Male: Body elongate-oval, length 5.58–6.27. COLORATION: Reddish brown and dark brown. Head: generally dark brown; compound eyes dark brown; antennae generally dark brown, base of first and third antennal segment pale brown; tylus dark brown; first segment of rostrum reddish orange; basal half of second segment reddish brown and other part dark brown, third segment almost grayish brown, 1/3 basal part of fourth segment reddish brown with other part dark brown. Thorax: pronotum brightly reddish brown, margin of posterior pronotum reddish brown, sometimes brown stained spots; collar reddish orange; callus reddish brown; mesoscutellum reddish brown, scutellum generally brightly reddish brown, sometimes individual variation in color; ostiole peritreme reddish orange. Hemelytra dark brown, outer margin reddish brown; outer margin of cuneus reddish brown; embolium margin reddish brown; membrane grayish dark brown. Legs brightly reddish brown, femora almost reddish brown, with brown rings and some spots, sparsely erect setae; tibiae reddish pale brown, apex of tibia dark brown ring, brownish erect setae in two rows; tarsus pale brown, third segment dark brown, claw pale brown. Abdomen: dark brown. SURFACE AND VESTITURE: glossy, covered with densely golden short pubescence; antennae covered with densely short pubescence; pronotum densely pilose; femora with sparsely erect setae. STRUCTURE: Head: Ocelli absent; vertex width longer than first antennal segment; first segment relatively thick, second antennal segment clavate, third antennal segment relatively thinner than first and second antennal segment, proportion of first to fourth antennal segments 0.8:2:1:1.1. Rostrum reaching to midcoxae; proportion of first to fourth rostral segments 0.6:0.7:0.5:0.6. FIGURES 4–8 . Male parameres and genitalia of Capsus koreanus Kim & Jung , sp. nov. 4–6, parameres; 4, left paramere; 5, right paramere in right view; 6, right paramere in left view; 7, vesica; 8, apex of spicule; hps hypophysis, sl sensory lobe, hs hook-shaped spicule, vsc ventral sclerite; scale bar: 0.1mm. Thorax: Pronotum trapezoid, mesal pronotal length longer than width of anterior margin, with callus somewhat swollen; scutellum equilateral. Lateral margin of hemelytra curved, cuneal fracture developed. Legs generally slender. Abdomen: rounded, almost reaching to apex of membrane. GENITALIA: gonopore short and round with curved parameres ( Figs. 4–6 ); left paramere with hypophysis; right paramere with hypophysis prominent downward; vesica with only one long spicule and two lateral sclerites, somewhat thin spicule, apex of spicule sharp and middle of lower line hollow ( Figs. 7–8 ). FEMALE: Ovoid, length 5.92–6.06. COLORATION: as in male. SURFACE AND VESTITURE: as in male. STRUCTURE: somewhat more rounded oval in overall shape than male. Measurements (IN MM). Male (n=6)/ female (n=2): Body length, tylus-apex of membrane: 5.58–6.27/ 5.92–6.06; head length, excluding collar: 0.33–0.52/0.41–0.45; head width, including compound eyes: 1.29–1.31/ 1.38–1.41; vertex width: 0.63–0.67/0.71–0.76; 1st antennal segment length: 0.61–0.64/0.64–0.65; 2nd antennal segment length: 1.82–2.02/1.71–1.86; 3rd antennal segment length: 0.84–0.93/0.96–1.01; 4th antennal segment length: 0.77–0.85/1.03–1.05; total antennal length: 4.14–4.59/4.44–4.67; 1st rostral segment length: 0.61–0.73/ 0.65–0.68; 2nd rostral segment length: 0.73–0.79/0.70–0.79; 3rd rostral segment length: 0.47–0.53/0.50–0.60; 4th rostral segment length: 0.57–0.59/0.55–0.65; total rostral length: 2.38–2.64/2.4–2.72; anterior pronotal margin width: 0.76–0.86/0.78–0.95; mesal pronotal length: 0.77–0.98/0.96–1.01; basal pronotal width: 1.91–2.09/ 2.10–2.23; outer embolial margin length: 2.81–2.96/2.71–3.08; outer cuneal margin length: 0.95–1.00/0.89–1.00; maximum width across hemelytra: 1.14–1.33/1.24–1.46; foreleg (femur: tibia: tarsus): 1.08–1.43:1.54–1.71:0.79– 0.89/1.31–1.39:1.54–1.66:0.64–0.75; midleg (femur: tibia: tarsus): 1.05–1.61:1.89–1.95:0.74–0.74/1.45–1.49:1.88 –1.94:0.73–0.90; hindleg (femur: tibia: tarsus): 1.90–2.39:2.94–2.97:0.81–0.86/2.27–2.29:2.90–3.00:0.93–0.95. Distribution. South Korea (whole regions). Hosts. Eleusine indica Gaertn (Poaceae) . Etymology. Named after the type locality, the Korean Peninsula. Material examined. Holotype : Boksu-dong, Seo-gu, Daejeon, South Korea , 6.v.2014 , J.G. Kim, 1♂ ( CNU ); Paratypes : Beob-dong, Dong-gu, Daejeon, Mt. Gyejok, South Korea , 16.v.2014 , J.G. Kim, 1♂ ; Gung-dong, Yeseong-gu, Daejeon, Chungnam National Univ. South Korea , 9.vi.2014 , J.G. Kim, ( NAAS ); Haengjuoe-dong, Goyang-si, Gyeonggi-do, South Korea , 23.v.2007 , Y.B. Lee, 4♂ ; Haengjuoe-dong, Goyang-si, Gyeonggi-do, South Korea , 23.v.2007 , Y.B. Lee, 1♀ ( CNU ). Discussion. This species is mostly found on Eleusine indica Gaertn, 1788 (family Poaceae ; Indian goosegrass, Wiregrass), which seems to be a host plant ( Figs. 2–3 ). This species appears early May to early August in South Korea . This species is widely distributed to the most regions in South Korea , unlike the congeneric species distributed in North Korea .