Genus Microlithosia Daniel, 1954

Daniel, 1954, Bonn. Zool. Beitr. 5 (1-2): 135.

Type species: Microlithosia shaowuica Daniel, 1954, by monotypy.

Distribution: China (Fujian, Hunan, Guangdong) (Dubatolov & Kishida 2012); North Vietnam (de Joannis 1928); Thailand (Černý & Pinratana 2009); Borneo (Holloway 2001); Malay Peninsula (Bucsek 2012); India (Kirti & Singh 2016).

Diagnosis: Morphologically, the species of Microlithosia Daniel, Bucsekia Dubatolov & Kishida and Wittia De Freina are small, generally yellowish or orange, and can only be distinguished on the basis of male genitalia. The most striking character of Microlithosia is a long process originating from the aedeagus. The process is apically covered with small spines and is absent in both of its closely related genera. Furthermore, absence of a long process arising from sacculus, directed basally (in Bucsekia) also separate Microlithosia from Bucsekia .