Anthidiellum (Ranthidiellum) phuchongense Nalinrachatakan & Warrit, 2021

Nalinrachatakan, Pakorn, Ascher, John S., Kasparek, Max, Traiyasut, Prapun, Thanoosing, Chawatat & Warrit, Natapot, 2023, A review of the anthidiine bees (Apoidea, Megachilidae) in Thailand, ZooKeys 1186, pp. 235-284 : 235

Anthidiellum (Ranthidiellum) phuchongense Nalinrachatakan & Warrit, 2021

Fig. 4B

Anthidiellum (Ranthidiellum) phuchongensis Nalinrachatakan & Warrit in Nalinrachatakan et al. 2021b: 167-171, see figs 3, 4 (left), 5 (left). (♀, ♂) Male holotype and female paratypes from Ubon Ratchathani, Thailand.

Material examined.

(5♀, 1♂). Same specimens as in Nalinrachatakan et al. (2021b). Holotype was transferred to NHMUK in April 2023 ..

Distribution.

Thailand (Ubon Ratchathani). From a survey in other adjacent national parks in Ubon Ratchathani, there is evidence that Ranthidiellum is present through an abandoned nest with collapsed structures (i.e., resin became opaque, whitish, and the entrance apically fractured).

Floral association.

Mobilizing the resin of plants in the family Dipterocarpaceae , possibly Dipterocarpus obtusifolius Teijsm. ex Miq., which is broadly distributed along their nesting habitats.

Bee cleptoparasites.

Stelis flavofuscinular Nalinrachatakan & Warrit, 2021.

Remarks.

The species-group name Anthidiellum phuchongensis is changed to Anthidiellum phuchongense following a mandatory change for gender agreement under ICZN article 34.2. The species was discovered to build its nest in a dipterocarp forest in Phu Chong Na Yoy National Park, in a preexisting hole near water stream. Their nesting structures are unique, with a distinct downwardly curved, resinous, translucent tube. Further details of its nesting biology and morphology variations were discussed in Nalinrachatakan et al. (2021b).

Figures

Figure 4. Comparing specimens of Anthidiellum (Ranthidiellum) recently collected from Thailand, and its cleptoparasite A female Anthidiellum ignotum Engel, 2009 (BSRU-AA- 1249) B female paratype of Anthidiellum phuchongense Nalinrachatakan & Warrit, 2021 (BSRU-AB- 0159) C male paratype of cleptoparasite Stelis flavofuscinular Nalinrachatakan & Warrit, 2021 (BSRU-AB- 0156). Scale bar: 2 mm.