(2) The second group includes mechanosensitive sensilla of different shapes (squamiform, trichobothrium, paddle-like, clubbed-like, ribbon-like, chaetic with bisected tip, fingerlike, freniale-like, peg, cupola, basiconica, star-like, multi-lobated); they are usually characteristic of individual taxa (species, subfamilies, or families).
Among nepomorphan taxa in the Nepidae the squamiform sensilla and paddle-like sensilla (PDS) are the most abundant over the entire labial surface, and they form a very dense coat.
The squamiform sensillum (SQS), in the Nepinae, is probably homologous to the paddle-like sensillum in the Ranatrinae.
For parthenogenetic females and both sexes of bisexual adults, we observed 6 types of sensilla, including hydrofuge scales, trichoid sensilla, 2 types of squamiform sensilla, tuft hairs and Bohm bristles.
2B), where 5 to 10 squamiform sensilla II (ssII) were surrounded by tuft hairs(Fig.