Systolederus cinereus Brunner von Wattenwyl, 1893

(Fig. 7)

Systolederus cinereus Brunner von Wattenwyl, 1893: 105 — Kirby, 1910: 20; Kirby, 1914: 44; Hancock, 1915: 95; Günther, 1939: 170; Shishodia, 1991a: 60; Blackith, 1992: 171; Mahmood et al., 2007: 1282; Storozhenko & Dawwrueng, 2015: 536; Neo et al., 2023; Storozhenko et al., 2023: 217; Devriese & Husemann, 2023: 339.

Systolederus ridleyi Hancock, 1909: ca. 401— Günther, 1939: 169; Blackith, 1992: 174; Otte, 1997: 65; Storozhenko et al., 2023: 217; Devriese & Husemann, 2023: 340.

Teredorus ridleyi (Hancock, 1909) — Hancock, 1915: 110.

Type material examined (only images). • ♀ syntype (of Systolederus ridleyi); SINGAPORE, Singapore Botanical Gardens; N1.314462 E103.816547; coll. H.N. Ridley; OUM 709 (OUM) .

New material examined. PENINSULAR MALAYSIA; Terengganu; Kuala Berang, Sekayu • 2♂ 1♀; N4.963559 E102.949886; 10 October 2024, 08h23; on leaf litter; coll. A.A. Muhammad, I.A.Azizan, N.A.Abdullah; HSHTT2024.032, 037, 040 (MZUM) • 2♂ 2♀; N4.972248 E102.957732, 71.8 m.a.s.l.; 9 October 2024, 14h12; on leaf litter and shrubs; coll. A.A. Muhammad, I.A. Azizan, N.A.Abdullah; HSHTT2024.077, 078, 080, 081 (MZUM) • 3♂ 2♀; N4.972248 E102.957732; 10 October 2024, 10h09; on leaf litter and shrubs; coll. A.A. Muhammad, I.A. Azizan, N.A. Abdullah; HSHTT2024.097, 100, 106, 107, 108 (MZUM) • 2♀; N4.968321 E102.952894; 10 October 2024, 21h44; on leaf litter and shrubs; coll. A.A. Muhammad, I.A. Azizan, N.A. Abdullah, Daicus M. Belabut; HSHTT2024.131, 132 (MZUM) .

Remarks. Our specimens represent the first record of this species in Terengganu, although this species is widespread in mainland Southeast Asia. We observed several more color variations of this species (see Adžić, 2021). Two distinct coloration groups include the uniform (Figs 7A, 7B) and patterned (Figs 7C, 7D). For the uniform coloration, light brown and gray were observed in our specimens, with the former being the most common. Specimens of patterned coloration are normally darker than the uniform-colored specimens and bear distinct darker patterns on the pronotum and hind femora.

Distribution. Myanmar [type locality], Peninsular Malaysia, Singapore, Thailand, Vietnam.