Elophila sp.
15 species of Elophila among about 30 known species globally are described in China (Chen, Wu & Xue 2010). They had been confusingly regarded as Nymphula until Speidel (1981) rectified the status of the two genera, Nymphula and Elophila.
Larvae live in ponds or stagnant water, burrowing into leave as a tunnel at 1st early instar and then making portable cases made of leaf pieces in subsequent instars. They are mostly polyphagous, usually feeding on floating leaves of many aquatic plants or sometimes feeding on submerged plants. Larval body cylindrical without filamentous tracheal gills, but having plastron on cuticle for respiration (Yoshiyasu 1985).
Provisional list of Elophila species under Acentropinae (Lepidoptera: Crambidae) in Hong Kong
| Species name | Species Author(s) |
| Elophila depunctalis | Guenée, 1854 |
| Elophila manilensis | (Hampson, 1917) |
| Elophila responsalis? | Walker, 1865 |
| Elophila turbata | (Butler, 1881) |
(source: Hong Kong Moth Recorder Database / C&R Wildlife/R.C.Kendrick, pers com., 19 Dec 2017)
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References:
Chen F-Q, Wu C-S & Xue D-Y. (2010) A review of the genus Elophila Hübner, 1822 in China (Lepidoptera: Crambidae: Acentropinae) Aquatic Insects: International Journal of Freshwater Entomology 32:1, 35-60