Megachile (Callomegachile) tuberculata Smith, 1858

Chatthanabun, Nontawat, Ascher, John S., Pinkaew, Nantasak, Thanoosing, Chawatat, Traiyasut, Prapun & Warrit, Natapot, 2020, Resin bees of genus Megachile, subgenera Callomegachile and Carinula (Hymenoptera, Megachilidae) from Thailand with description of a new species, ZooKeys 997, pp. 95-144 : 95

Megachile (Callomegachile) tuberculata Smith, 1858 Figs 23 , 24

Megachile tuberculata Smith, 1858: 46. Female syntype (NHMUK, examined) Borneo, Malaysia.

Megachile longipalpis Radoszkowski, 1882: 78 [doubtful synonymy].

Chalicodoma (Eumegachilana) tuberculatum : Michener, 1965: 192.

Diagnosis.

Female can be recognized by its large body size (21-24 mm); black body covered with black hairs throughout (Fig. 24a ); base of clypeus with large protruding tubercle; mandibles elongate with three teeth and small tubercle at base (Fig. 24c ); yellow wings; black scopa.

Literature records.

India. Sikkim ( Ascher et al. 2016); Indonesia. Java, Sumatera Barat ( Ascher et al. 2016); Myanmar. Mergui Archipelago, Bago Yoma ( Bingham 1890, 1897); Malaysia. Johor, Negeri Sembilan, Pahang, Perak, Sabah, Sarawak, Selangor, Terengganu, ( Smith 1858; Bingham 1890, 1897; Dover 1929; Ascher et al. 2016); Philippines. (The Philippines record based on the type of M. longipalpis Radoszkowski, 1882 is considerably outside the verified range for this species as presently understood, so this synonymy should be re-examined); Singapore. ( Bingham 1897; Ascher et al. 2016).

Material examined.

Female syntype. Malaysia. "Type; B.M. TYPE HYM. 17a. 2840; SAR.; Megachile tuberculata Sm. 1857 not 1879; NHMUK 013379846"; Thailand (new record). Ubon Ratchathani Province: 1♀, Na Chaluai district, Phu Jong Nayoy Nat. P., Phalan Pa Chad, 14°26'7.8066"N, 105°15'34.7394"E, Alt. 247.17 m, 6-XI-2019, coll. Traiyasut et al. (leg. NC and NW).

Floral records.

Megachile (Callomegachile) tuberculata was photographed visiting and collecting pollens from Psophocarpus tetragonolobus (L.) D.C. ( Soh et al. 2017), also captured on Grammatophyllum speciosum Blume ( Ascher et al. 2016).

Comments.

The single Thai record is from far to the northeast of the Sundaic Region.

Figures

Figure 23. Thai distribution of Megachile (Callomegachile) tuberculata.

Figure 24. Megachile (Callomegachile) tuberculata Smith, 1858, female (NHMUK 013379846) a dorsal view b frontal view c lateral view of mandible d front leg e lateral view of metasoma and scopa.