Table 1.
A list of taxa whose labial segments have been studied. Specimens illustrated in this paper are marked with an asterisk on the list.
| Families | Subfamilies | Species | Authors |
|---|---|---|---|
| Nepidae | Nepinae | Curicta granulosa | De Carlo 1951 |
| Borborophyes mayri* | Stål, 1871 | ||
| Laccotrephes japonensis* | (Scott, 1874) | ||
| Nepa cinerea | Linnaeus, 1758 | ||
| Ranatrinae | Cercotmetus asiaticus* | Amyot & Serville, 1843 | |
| Ranatra chinensis* | (Mayr, 1865) | ||
| Belostomatidae | Belostomatinae | Belostoma flumineum* | Say, 1832 |
| Deinostoma dilatatum* | (Say) | ||
| Appasus major | (Esaki, 1934) | ||
| Hydrocyrius colombiae* | Spinola, 1850 | ||
| Limnogeton fieberi* | Mayr, 1853 | ||
| Lethocerinae | Lethocerus deyrollei* | (Vuillefroy, 1864) | |
| Ochteridae | Ochterus marginatus | (Latreille, 1804) | |
| Ochterus piliferus* | Kormilev, 1973 | ||
| Gelastocoridae | Gelastocoris oculatus* | (Fabricius, 1798) | |
| Nerthra nepaeformis* | (Fabricius, 1798) | ||
| Nerthra macrothorax* | (Montrouzier, 1855) | ||
| Aphelocheiridae | Aphelocheirus variegatus | Kiritschenko, 1925 | |
| Aphelocheirus aestivalis* | (Fabricius, 1794) | ||
| Naucoridae | Cheirochelinae | Cheirochela feana* | Montandon, 1897 |
| Gestroiella limnocoroides* | Montandon, 1897 | ||
| Coptocatus oblongulus* | Montandon, 1909 | ||
| Coptocatus kinabalu* | Polhemus D. 1986 | ||
| Tanycricos longiceps* | La Rivers, 1971 | ||
| Laccocorinae | Laccocoris hoogstraali* | La Rivers, 1970 | |
| Heleocoris humeralis* | Signoret, 1861 | ||
| Limnocorinae | Limnocoris lutzi* | La Rivers, 1957 | |
| Cryphocricinae | Cryphocricos hungerfordi* | Usinger, 1947 | |
| Ambrysus occidentalis* | La Rivers, 1951 | ||
| Naucorinae | Ilyocoris cimicoides* | (Linnaeus 1758) | |
| Pelocoris femoratus* | (Palisot de Beauvois 1820) | ||
| Macrocoris rhantoides* | Bergroth, | ||
| Naucoris maculatus* | Fabricius, 1798 | ||
| Neomacrocoris handlirschi* | (Montandon, 1909) | ||
| Namtokocoris siamensis* | Sites 2007 | ||
| Pleidae | Paraplea frontalis* | (Fieber, 1844) | |
| Helotrephidae | Helotrephes semiglobosus | Stål, 1860 | |
| Hydrotrephes visayasensis | Zettel, 2002 | ||
| Hydrotrephes balnearius* | (Bergroth, 1918) | ||
| Tiphotrephes indicus | (Distant, 1910) | ||
| Notonectidae | Anisopinae | Anisops camaroonensis* | Signoret |
| Anisops sardea | Herrich-Schäffer 1849 | ||
| Buenoa uhleri* | Truxal, 1953 | ||
| Notonectinae | Notonecta glauca* | Linnaeus 1758 | |
| Enithares bergrothi* | Montandon, 1892 | ||
| Nychia sappho* | Kirkaldy, 1901 |
Specimens of the Potamocoridae were not available for the purpose of the present study.