Prolygus nigriclavus

Prolygus nigriclavus (Poppius, 1915) Fig. 13 Lygus nigriclavus Poppius, 1915 b: 35; Carvalho 1980: 653. Prolygus nigriclavus. Schwartz and Kerzhner 1997: 255; Zheng et al. 2004: 561; Yasunaga et al. 2018: 365. Material examined. Vietnam • 1 ♂ 1 ♀, Quang Ngai Prov., Dak Glei District, Dak Man (15°13'02.50"N, 107°44'04.65"E), 1071 m altitude, 15.iv.2025, J. Kim leg. (ZCDTU) (DTUHMM 0113–0114). Diagnosis and description. Distinguished by the dorsum generally pale, with dark longitudinal marking, extending from pronotum to basal part of membrane; scutellum and clavus entirely dark brown; inner part of corium dark brown; basal part of membrane dark brown; cuneus entirely pale brown. See Yasunaga et al. (2018) for the differential diagnosis and the redescription. Measurements (in mm). Female (n = 1) Body length, clypeus – apex of membrane: 4.02; head length, excluding collar: 0.32; head width across eyes: 0.90; vertex width: 0.30; length of 1 st antennomere: 0.42; 2 nd: 1.30; 3 rd: 0.72; 4 th: 0.44; mesal pronotal length: 0.73; pronotal maximal width: 1.37; scutellar width: 0.74; mesal scutellar length: 0.64; claval commissure length: 0.74; maximal width across hemelytron: 0.74: length of hind leg (femur: tibia: tarsus): 1.19: 1.85: 0.49. Plant association. This species was collected from the inflorescence of Trema orientalis (L.) Blume (Cannabaceae), together with Prolygus disciger (Poppius, 1915) and some other heteropteran groups (e. g., Anthocoridae, Tingidae, etc.) at the time of collection. It may be considered that these insects were attracted to the inflorescence rather than exhibiting host association, as flowering trees were scarce in the surrounding environment at the time of collection. Distribution. Indonesia, Laos, Malaysia, Nepal, Taiwan, Thailand (Poppius 1915 b; Yasunaga et al. 2018), Vietnam (Central; new record).