The presence of sensory areas, which is considered to be the autapomorphic characteristic of the Heteropterygidae, is fully developed in the Dataminae.

With them there is a pair of these sensory fields on the Prosternum and a third in the middle behind it on the so-called (Pro-) Furcasternit.

The females lack the secondary ovipositor typically developed in the other subfamilies at the end of the abdomen.

In adult females, the abdomen is widened and significantly increased towards the middle due to egg production.

[4][5][6] The range area of the Dataminae covers large parts of Southeast Asia.

It extends in the north over the eastern Myanmar, includes Thailand, Laos, Cambodia, Vietnam and in South China the provinces Yúnnán, Guizhou, Hunan, Jiangxi and Zhejiang partially, as well as Hainan, Guangdong, Fujian and the Special Administrative Regions Hong Kong and Macau, as well as the autonomous region Guangxi.

This is catapulted forward, caught with the antennas and rolled over them into the trough, where it is then covered with earth by using the forelegs.

[9] In 1998 it turned out that the type species Datames oileus of the genus Pylaemenes is to be assigned.

The investigated Pylaemenes species can be found in the immediate vicinity of each other in the cladogram, but do not form a common clade.

[3] Since all syntypes of these from the island Woodlark are missing, a comparison with the type material is not possible.