page_title: Bactrocera dorsalis
section_title: Description
hierarchical_section_title: Bactrocera dorsalis / Description
caption_attribution_description: Bactrocera dorsalis (complex) Entomology Unit IAEA Seibersdorf, Austria Bactocera dorsalis: Origin: Asia, Suriname, Brazil, Hawaii Common name: Oriental fruit fly Host: Most fruits and fruiting vegetables, wild hosts. Damage: Highly significant economic damage. Copyright: IAEA Imagebank Photo Credit: Viwat Wornoayporn / IAEA
context_page_description: Bactrocera dorsalis, previously known as Dacus dorsalis and commonly referred to as the oriental fruit fly, is a species of tephritid fruit fly that is endemic to Southeast Asia. It is one of the major pest species in the genus Bactrocera with a broad host range of cultivated and wild fruits. Male B. dorsalis respond strongly to methyl eugenol, which is used to monitor and estimate populations, as well as to annihilate males as a form of pest control. They are also important pollinators and visitors of wild orchids, Bulbophyllum cheiri and Bulbophyllum vinaceum in Southeast Asia, which lure the flies using methyl eugenol.
  The fly is similar to the closely related species B. carambolae and B. occipitalis. The species name B. dorsalis is identical to other synonyms B. papayae, B. invadens and B. philippinensis.
context_section_description: B. dorsalis is a species of tephritid fruit fly. Flies that belong to this family are usually small to medium-sized with colorful markings. In particular, B. dorsalis belongs to a complex of physically similar flies called the Bactrocera dorsalis complex, whose defining characteristics include a mostly black thorax and dark T-shaped marking on the fly's abdominal segment. The T-shape marking consists of a dark medial and transverse band along the fly's abdomen.
  The B. dorsalis species has distinctive yellow and black markings on its thorax and abdomen, which may vary between flies. Two vertical yellow markings on the thorax and the dark T-shaped marking on the abdomen differentiate this species of fly from its close relatives. The wings are clear with a continuous costal band. The adult body is around 8.0 mm in length, with wings approximately 7.3 mm in length. The female adult has a tapered ovipositor for depositing eggs in host fruits, while in male adults this ovipositor is notably absent.
caption: B. dorsalis thorax and abdomen
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