Hyleoglomeris hongkhraiensis Likhitrakarn,

Likhitrakarn, Natdanai, Jeratthitikul, Ekgachai, Sapparojpattana, Pichsinee, Siriwut, Warut, Srisonchai, Ruttapon, Jirapatrasilp, Parin, Seesamut, Teerapong, Poolprasert, Pisit, Panha, Somsak & Sutcharit, Chirasak, 2024, Six new species of the pill millipede genus Hyleoglomeris Verhoeff, 1910 (Diplopoda, Glomerida, Glomeridae) in Thailand revealed by DNA-barcoding, Contributions to Zoology 93 (4), pp. 289-323 : 299

publication ID	https://doi.org/10.1163/18759866-BJA10062
persistent identifier	https://treatment.plazi.org/id/03ED131B-FFA8-4E4F-FF0F-8946A390FDF4
treatment provided by	Felipe
scientific name	Hyleoglomeris hongkhraiensis Likhitrakarn,
status

Treatment

Golovatch & Panha, 2015

Hyleoglomeris hongkhraiensis Likhitrakarn et al. 2015b: 131 View in CoL .

Hyleoglomeris cavicola Likhitrakarn et al. 2015b: 135 View in CoL , new synonym.

Fig. 2E–K

New material. 22 ♂, 23 ♀ 1 juvenile ( CUMZ-GLO 219), Thailand, Chiang Mai Province, Chom Thong District, Thongkwao Monastery, ca. 120 m a.m.s.l., 17°09’53“N, 99°33’36”E, 21.10.2015, leg. R. Srisonchai & N. Likhitrakarn. Remarks. The observed genetic distance (2.34%) between H.hongkhraiensis (Doi Saket, Chiang Mai; MUMNH-GLO 029-2, MUMNH-GLO 029-3) and H. cavicola (Chom Thong, Chiang Mai; MUMNH-GLO 031-3) paratypes was substantially lower than the lowest genetic distance between two species with distinctly different telopods, H. hongkhraiensis and H. krasoon sp. n. In addition, H. hongkhraiensis and H. cavicola belong to the same clade with high support values (fig. 1). New specimens were collected from Thongkwao Monastery, less than 1 km away from Barijainda Cave, which is the type locality of H. cavicola . The newly discovered specimens displayed a pair of large, paramedian, dark triangles at their caudal margins and an evident light brown to dark axial line (fig. 2F–H). The lateral sides of the terga show a pair of sublateral, marbled, faded brown to dark or blackish spots beside the triangles (fig. 2F–K). Moreover, live paratype specimens of H. hongkhraiensis (fig.

2C–E) show a body colour pattern similar to the original description, except for a contrasting yellowish shade. As depicted in fig. 2C–E, this yellowish area displayed a pinkish-yellow colour in our observations.

The colour variations that previously distinguished the two species, H. cavicola and H. hongkhraiensis , matched those of the new population. Therefore, we formally synonymize H. cavicola with H. hongkhraiensis .