Bactrocera (Bactrocera) longicornis Macquart, 1835

Leblanc, Luc, 2022, The dacine fruit flies (Diptera: Tephritidae: Dacini) of Oceania, Insecta Mundi 2022 (948), pp. 1-167 : 128

Bactrocera (Bactrocera) longicornis Macquart, 1835

Figure 42

Distribution. Papua New Guinea (New Britain). Solomon Islands (Ghaghe Island, in Isabel Province).

Male lure. Cue-lure.

Host plants. No known hosts.

Notes. This was the first species to be described from Oceania, the earliest use of the generic name Bactrocera , published by Macquart (1835), and the second dacine fly species described, preceded only by the description of Musca oleae Rossi, 1790 (now known as Bacrocera oleae ). This historic species description is reproduced on Figure 2 .

Former New Ireland and Bougainville records of B. longicornis actually are of B. denigrata ( Drew, 1971) , declared a junior synonym of B. longicornis by Hardy (1976) and reinstated as a valid species by Drew and Romig (2022), based on the examination of specimens collected in East New Britain by the author of this publication, among which the one on Figure 42 . The differences between the two species are outlined in Drew and Romig (2022). No additional specimens of B. longicornis have been collected in the Solomon Islands, other than Macquart’s original holotype.

Figures

Figure 2. Cumulative number of species of Dacini in Oceania through time, starting with the description of Bactrocera longicornis (Macquart) in 1835 (insert).

Figure 42. Bactrocera (Bactrocera) longicornis (Macquart), male. A) Head. B) Head and scutum. C) Abdomen. D) Wing. E) Lateral view.