Abstract
Two Chinese species of the genus Deltophora Janse (Lepidoptera: Gelechiidae), both in obligate mutualism with the plant genus Phyllanthus L. (Phyllanthaceae), are newly described: Deltophora phyllanthicella Li et Sattler sp. n., from Hainan, a pollinator of its larval host Phyllanthus rheophyticus Gilbert et Li; Deltophora polliniferens Li et Sattler sp. n., from Guangdong, a pollinator of its larval host Phyllanthus cochinchinensis (Lour.) Spreng. The adults and the male and female genital structures of both species are described and illustrated. The presence of a fully developed 1st instar larva in the female abdomen of Deltophora phyllanthicella is recorded as the first such case in Gelechiidae.
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