Megachile (Callomegachile) memecylonae (Engel, 2011) Figs 13, 14

Chalicodoma (Alocanthedon) memecylonae Engel, 2011: 63-67; Male holotype (NHMUK, examined), Penang: Batu Ferringgi, Malaysia.

Diagnosis.

Megachile (Callomegachile) memecylonae (Engel, 2011) superficially resembles M. (Callomegachile) atratiformis (Meade-Waldo, 1914), in overall appearance and size: large body size (18-19 mm); black body covered with black hairs throughout; yellow wings. Female is easily distinguished by mesoscutum with distinctly transverse wrinkle pattern on disc, posteriorly also with well separated punctures (Engel and Gonzalez 2011). Male can be recognized by median cell of forewings without black setae patch; juxtamandibular flange present (Fig. 14d); basitarsi of pro legs with hook shape (Fig. 14e).

Literature records.

Malaysia. Kuala Lumpur, Pahang, Pangkor Island, Penang, Perak, Selangor (Engel and Gonzalez 2011). A photograph on iNaturalist from Buachet, Surin Province may pertain to this species but visual identification in this group is difficult (credit: janescan 2018).

Material examined.

Male holotype. Malaysia. "Holotype; B.M. TYPE HYM 17a. 3179; memecylonae, Batu Feringgi; 17 xi 1963 HTP. ⌀147; H.T. Pagden Coll. B.M. 1971-46; Malaya, Penang, Batu Feringgi, 17 Nov 1963, H T Pagden; Holotype, Chalicodoma memecylonae Michael S. Engel; NHMUK 013380270"; Thailand. Phayao Province: 1♂, Mueang district, Mae Ka subdistrict, Phayao University, 01-VI-2012, coll. Warrit et al. (leg. NW).

Remarks.

This species was described from Peninsular Malaysia. It is remarkable that the first and only Thai specimen record is from Phayao Province in northern Thailand.