Rhyacobates zetteli Tran & Nguyen, 2016

Figs 3R, 5Q, 7H

Rhyacobates zetteli Tran & Nguyen, 2016: 505–508, figs 11–23 (original description).

Diagnosis

Body length of apterous females 9.80–10.60, of apterous males 7.30–7.70. Color (Fig. 3R): dorsum of head mainly yellow with small black markings; pronotum mainly yellow with narrow black marking on anterior margin and sometimes laterally; mesonotum with broad median marking from anterior to posterior margin (median marking broader in females than in males); metanotum with laterally expanded yellow marking (more extensive in females). Female: abdomen elongate and straight; ventral length of pregenital abdomen about half of body length (Fig. 5Q); connexivum of segments I–VI narrow; connexival corners of segment VI with small processes; abdominal segment VII tapering towards apex; mediotergite VII with small median process on posterior margin; sternum VII with bilobate posterior margin, connexival corners with small blunt processes which bend mesad. Male: middle trochanter with 6–7 spines; middle femur with spines but not in distinct row; length of middle tibia about equal to length of hind tibia; pygophore simple, with straight apical margin; proctiger with subtrapezoidal lobes laterally (Fig. 7H); paramere relatively long and slender, curved at basal third, distal part tapering towards narrowly rounded apex.

Material examined

Type specimens

See Tran & Nguyen (2016).

Non-type specimens

VIETNAM • 3 ♀♀ (apterous); Lào Cai Province, Sa Pa, Núi X ẻ area, Vàng stream and its feeders; 22°20′54.4″ N, 103°46′12.0″ E; 25 Oct. 2020; A.D. Tran et al. leg.; TAD20-19; ZVNU • 1 ♀ (apterous); same collection data as for preceding; NKUM .

GPS data of previous records: see Tran & Nguyen (2016).

Distribution

Vietnam: Lào Cai (Tran & Nguyen 2016).

Comparative notes

Rhyacobates zetteli is most similar to R. angustus, as discussed by Tran & Nguyen (2016: 503, 507– 508). Also see comparative notes under R. bui sp. nov.