Megachile (Callomegachile) umbripennis Smith, 1853

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) umbripennis Smith, 1853 Figs 25 , 26 , 27 , 28 , 29

Megachile umbripennis Smith, 1853: 175. Female syntype (NHMUK, examined) Nepal [as Nepaul].

Megachile schauinslandi Alfken, 1898: 340.

Megachile domesticum Perkins, 1899: 114, nomen nudum.

Megachile umbripennis var atriventris Friese, 1903: 357.

Megachile aureobasis Cockerell, 1919: 198.

Megachile (Eumegachile) umbripennis : Krombein, 1950: 125.

Chalicodoma (Callomegachile) umbripennis : Michener, 1965: 191.

Diagnosis.

Female superficially resembles leafcutter bee M. (Aethomegachile) laticeps Smith, 1853, in terms of its overall appearance and size: mesosoma and propodeal triangle with fulvous hairs, except vertex and disc area of mesoscutum covered with fulvous hairs (Fig. 26a ); T2-T4 with tuft fulvous hairs laterally; T5 with white hair band (Fig. 26e ). Male is similar to female except apical margin of clypeus covered with hairs; mandibles three teeth (Fig. 28b, c ).

Literature records.

American Samoa; China. Aitutaki, Canton, Fujian, Guandong, Sichuan, Yunnan ( Ascher et al. 2016); Fiji. ( Davies et al. 2013; Ascher et al. 2016); French Polynesia. Mo’orea, Society Islands, Tahiti ( Ascher et al. 2016); Hong Kong. ( Ascher et al. 2016); India. Chandigarh, Haryana, Sikkim, Tamil Nadu ( Bingham 1897; Ascher et al. 2016); Laos. Vientiane ( Ascher et al. 2016); Malaysia. Kelantan, Kuala Lumpur, Pahang, Sarawak, Selangor ( Smith 1858; Ascher et al. 2016); Mariana Islands. San Vicente; Myanmar. Tenasserim ( Bingham 1897; Ascher et al. 2016); Nepal. ( Smith 1853, 1858; Bingham 1897; Ascher et al. 2016); New Caledonia. ( Ascher et al. 2016); Northern Mariana Islands. ( Ascher et al. 2016); Singapore. ( Ascher et al. 2016); Sri Lanka. Matale ( Ascher et al. 2016); Cook Islands. Aitutaki, Rarotonga, Mangaia ( Kuhlmann 2006; Ascher et al. 2016); Tonga. ( Ascher et al. 2016); USA. Florida, Hawaii, Kauai, Midway, Maui, Molokai, Oahu ( Ascher et al. 2016); Vietnam. Ha Giang ( Ascher and Pickering 2020).

Material examined.

Female syntype. Nepal. "Type; B.M. TYPE HYM. 17. a. 2160; Hardwicke Bequest; Nepal [as Nepaul]; umbripennis , Type, Sm.; Megachile umbripennis TYPE. Sm.; NHMUK 013380267"; Thailand. Chiang Mai Province: 1♀, 16♂, Mueang district, Mae Hia subdistrict, Mae Hia Agricultural Research, Demonstrative and Training Center, 18°45'51.1272"N, 98°55'39.6192"E, Alt. 232 m, 19-VII-2015, coll. Warrit et al. (leg. NC and NW). Kanchanaburi Province: 1♀, 19♂, Sai Yok district, Wang Krachae subdistrict, 14°9'56.7678"N, 98°55'39.6192"E, Alt. 232 m, 24-VI-2016, coll. Warrit et al. (leg. NC and NW); 8♂, Sai Yok district, Wang Krachae subdistrict, 14°11'6.5724"N, 99°3'6.9258"E, Alt. 102.30 m, 24-VI-2016, coll. Warrit et al. (leg. NC and NW); 1♀, Sai Yok district, Sai Yok Yai National Park, 14°27'16.4118"N, 98°51'40.4928"E, Alt. 49.17 m, 24-VI-2016, coll. Warrit et al. (leg. NC and NW). Mae Hong Son Province: 1♀, Pang Ung, Pang Tong Under Royal Forest Park 2, 19°29'58.3008"N, 97°54'42.1014"E, Alt. 1,164 m, 10-XII-2015, coll. Warrit et al. (leg. NC and NW). Nakhon Pathom Province: 1♀, Kamphaeng Saen district, Kamphaeng Saen subdistrict, Kasetsart University, Kamphaeng Saen Campus, 22-II-2000, coll. Sokroh (leg. NC and NW); 1♀, Kamphaeng Saen district, Kamphaeng Saen subdistrict, Kasetsart University, Kamphaeng Saen Campus, 22-II-2003, coll. Kittisak (leg. NC and NW); 2♂, Kamphaeng Saen district, 13°44'58.3908"N, 99°52'33.1242"E, Alt. 14 m, 10-VII-2015, coll. Warrit et al. (leg. NC and NW). Phayao Province: 1♀, 4♂, Mueang district, Maeka subdistrict, Phayao University, 01-VI-2012, coll. Warrit et al. (leg. NC and NW); 1♀, 28-I-2014, coll. S. Yutham (leg. NC and NW). Phetchabun Province: 2♂, Lomsak district, Bungkla subdistrict, 19-X-2009, coll. K. Attasopa & P. Phukphume (leg. NC and NW); 1♀, 2♂, Lomsak district, Bungkla subdistrict, 20-X-2009, coll. K. Attasopa & P. Phukphume (leg. NC and NW); 1♀, Lomsak district, Bungkla subdistrict, 21-X-2009, coll. K. Attasopa & P. Phukphume (leg. NC and NW). Phitsanulok Province: 1♀, Phuhinrongkla Nat. P., Lan hin pum, 16°59'49.8008"N, 101°00'40.6772"E, Alt. 1303 m, VI. 17. 2017., Aerial net, coll N. Warrit et al. (leg. NC and NW). Ratchaburi Province: 1♀, Suan Pheung district, 25-V-2012, coll. N. Warrit (leg. NC and NW). Samut Sakhon Province: 1♀, Banpaew district, 19-VIII-2014, coll. P. Tangtorwongsakul (leg. NC and NW). Suphan Buri Province: 1♂, 9-X-2012, coll. Veerawan (leg. NC and NW). Trang Province: 1♂, Na Yong district, 7°33'8.0892"N, 99°46'33.6072"E, Alt. 24 m, 11-VI-2015, coll. Warrit et al. (leg. NC and NW). Ubon Ratchathani Province: 1♂, Trakan Phuetphon district, Sarin lake view village, 03-VIII-2014, coll. N. Chatthanabun (leg. NC and NW).

Comments.

There are some suspect specimens that show variation in both sexes of M. umbripennis . One female collected from Phitsanulok province (BSRU AA-4620) shows the following variations: lack of fulvous hairs on disc area of mesoscutum and lack of white hairs on T2-T5 (Fig. 27a-h ). Males collected from Chiang Mai province (BSRU AA-3654, BSRU AA-3662) and Suphan Buri province (KKIC-02) have fulvous hairs on T2-T5 instead of white hairs (Fig. 29a-k ).

Figures

Figure 25. Thai distribution of Megachile (Callomegachile) umbripennis.

Figure 26. Megachile (Callomegachile) umbripennis Smith, 1853, female a dorsal view b lateral view c frontal view of mandible and labrum d frontal view e dorsal view of metasoma f lateral view of metasoma and scopa.

Figure 27. Megachile (Callomegachile) umbripennis Smith, 1853 (BSRU AA- 4620), female a dorsal view b lateral view c frontal view d dorsal view of mesoscutum e clypeus and mandible f lateral view of mandible g T 6 h lateral view of metasoma showing scopa.

Figure 28. Megachile (Callomegachile) umbripennis Smith, 1853, male a dorsal view b frontal view c frontal view of mandible and labrum d lateral view e frontal view of T 7 f ventral view of metasomal sterna g dorsal (left) and ventral (right) views of penis h dorsal view of S 8 i S 5 j T 7.

Figures 29. Megachile (Callomegachile) umbripennis Smith, 1853 (BSRU AA- 3654, BSRU AA- 3662 and KKIC- 02), male a dorsal view b lateral view c frontal view d clypeus and mandible e dorsal view of mesoscutum f T 6 g ventral view of metasomal sterna showing scopa dorsal view of metasomal sterna h dorsal view of S 8 i S 5 j T 7 k dorsal (left) and ventral (right) views of penis.