''Xuedytes bellus'' is a species of beetle found in Du'an,

Guangxi Guangxi (; ; Chinese postal romanization, alternately romanized as Kwanghsi; ; za, Gvangjsih, italics=yes), officially the Guangxi Zhuang Autonomous Region (GZAR), is an Autonomous regions of China, autonomous region of the People's Republic ...

Province, China and, , the only known species in the genus ''Xuedytes''. This species may be "the most extremely cave-adapted trechine" beetle in the world, morphologically adapted to life in the darkness of the caves of southern China. It lacks flight wings, eyes, and pigmentation. Its physical characteristics most resemble the beetle genera '' Giraffahaenops'' and ''

Dongodytes ''Dongodytes'' is a genus of beetles in the family Carabidae, first described by Thierry Deuve in 1993. Species ''Dongodytes'' contains the following thirteen species: * ''Dongodytes baxian'' Tian, 2011 * ''Dongodytes brevipenis'' Tian, Yin & ...

''. Like ''Giraffahaenops'', ''Xuedytes bellus'' has a thin and elongated body. However, its elytra are similar to those of ''Dongodytes''. The genus ''Xuedytes'' differs from both of the aforementioned genera in its prothorax, which is longer than its head, its narrow elytra, and the right mandibular tooth shows an evolutionary adaptation. ''Xuedytes'' are generally 8.3–9.0 mm in length when measured from the apex of the right mandible to the elytral apex and 1.4–1.5 mm in width. It is characterized as having a yellowish brown body, with tarsi, palps, and antennae pale, and a strongly shining head.

References

{{Taxonbar, from1=Q47004266, from2=Q47006152 Trechinae Monotypic Carabidae genera Endemic fauna of China Insects of China Beetles described in 2017 Cave beetles