Agrilus humilis Kerremans

(Figs. 4B, 5G)

humilis Kerremans, 1895

Kerremans, 1895: 223–224.

Kerremans, 1903: 278 (catalog).

Obenberger, 1936: 1085 (world catalog). Jendek, 2007: 90 (lectotype designation; synonymy). Bellamy, 2008: 2129 (world catalog).

Jendek & Poláková, 2014: 184 (critical host plant review). = tantillus Kerremans, 1896

Kerremans, 1896: 143–144.

Kerremans, 1903: 278 (catalog).

Obenberger, 1936: 1104 (world catalog).

Jendek, 2007: 90 (synonym of humilis; lectotype designation).

Bellamy, 2008: 2129 (synonym of humilis; world catalog).

Type material. Agrilus humilis Kerremans, 1895 . Described from inexplicit number of syntypes. Type locality. “Ille Bodjo”. Type specimens. Lectotype ♂ (BMNH): “TYPE [p] [round label with red border] \ I. Bodjo Weyers [h] \ humilis Kerr. Type [h] \ Kerremans 1903 –59 [p] \ A. humilis Kerrem. Bodjo [h]”. Lectotype designated by Jendek (2007).

Agrilus tantillus Kerremans, 1896 . Described from inexplicit number of syntypes. Type locality. “Sumatra”. Type specimens. Lectotype ♀ (BMNH): “TYPE [p] [round label with red border] \ Sumatra, Manuf.Tabacs [h] \ tantillus Kerr. Type [h] \ Kerremans 1903 –59 [p] \ A. tantillus Kerrem. Sumatra [h]”. Lectotype designated by Jendek (2007).

Examined specimens. MALAYSIA. Pulau Pinang: 1 ♂ (EJCB): “Malaysia: Bumbong Lima, Butterworth Penang, 8–x–1972, G . V. Manley ”. SINGAPORE. 1 ♀ (ZRC): “Singapore, NeeSoon pipeline, CLF & CYW, 31/8/ 2008.

Distribution. Indonesia (Sumatra); Malaysia (Pulau Pinang); Singapore.

Remarks. Agrilus humilis belongs to species with expanded proximal part of aedeagus (Tab. 1) (Fig. 5G) and particularly close to A. pilosotibialis which has the same obvious membranous lobes on apex of parameres (Fig. 5K). Both species are likely conspecific, but they are tentatively treated separately due to limited number of available specimens from distant localities. See also remarks at A. pilosotibialis .