A systematic study of Phytalmia (Diptera, Tephritidae) with description of a new genus

The tribe Phytalmiini is defined to include the genera Phytalmia Gerstaecker, Diplochorda Osten Sacken (= Nesadrama Perkins syn.n.) and Sessilina gen.n. (type‐species Dacus nigrilinea Walker), with Ortaloptera Edwards as an outlying member; a key is provided to these genera. The tribe is nearly restricted to the Papuan Subregion; the record of Nesadrama petiolata Hardy from the Philippine Islands is questioned, and this species is synonymized with Diplochorda myrmex Osten Sacken syn.n. Nesadrama longistigma Perkins is a synonym of D.turgida (Walker) syn.n. Keys are provided to the six species of Phytalmia: alcicornis (Saunders), antilocapra sp.n., biarmata Malloch, cervicornis Gerstaecker (= prisca Enderlein syn.n.), megalotis Gerstaecker (= wallacei Saunders syn.n.), mouldsi sp.n.; also the three species of Sessilina, horrida sp.n., literata sp.n., nigrilinea (Walker). The enlarged cheek‐processes may be greatly reduced in P.biarmata and cervicornis . The morphology of the internal reproduction system of mouldsi females is described.