Pest Fruit Flies of the World – Larvae


L.E. Carroll, A.L. Norrbom, M.J. Dallwitz, and F.C. Thompson

Bactrocera zonata (Saunders)

Dasyneura zonatus Saunders, Dacus ferrugineus var. mangiferae Cotes, Rivellia persicae Bigot

Peach fruit fly. Body length 9–12mm (range estimated, LEC coded as 10–11); slender, elongate, tapering anteriorly (?). Integument unsclerotized, entirely whitish to yellowish. Caudal ridge present. Mature larvae able to jump.

Head. Head of normal shape. Antenna 2-segmented. Stomal organ: primary lobe small, round; other peg-sensilla-like structures absent. Stomal region: secondary lobes present, short, leaf-like; sclerotized stomal guards absent (?). Oral ridges present; number of oral ridges 10–11 (deep, clearly defined rows); margins serrate, or dentate. Accessory plates present. Elongate, finger-like lobes arising above mandibles absent (?). Median oral lobe absent or not protruding. Labium broad (?).

Cephalopharyngeal skeleton. Mandibles: subapical teeth absent (?); base ?. Parastomal bars elongate, free from hypopharyngeal sclerite. Dental sclerites present, posterior to mandibles.

Spinules and creeping welts. Dorsal spinules on segments T1-T3.

Caudal segment (a8) and anal lobes. Sensilla on caudal segment 10 pairs, with at least 7 pairs visible under dissecting microscope (?). Ventral caudal sensilla absent or visible only with great difficulty, or obvious, but not on a papilla or tubercle (?). Anal lobes plainly visible, but not strongly protuberant; simple (?).

Anterior spiracles. Anterior spiracle elevated, margin concave medially, appearing bilobed. Anterior spiracular tubules 13–15; in a single uniform row, or in a single irregular row (?).

Posterior spiracles. Posterior spiracular area not distinctly set off from caudal segment. Posterior spiracles: slits 3–3.5x longer than wide (about). Dorsal spiracular processes with numerous trunks arising from an elongate base, or with numerous trunks arising from a short or semicircular base (long processes). Number of dorsal spiracular processes 3–17. Number of ventral spiracular processes 3–17. Number of lateral spiracular processes 6–8. Area between posterior spiracles smooth.

Host plants. Anacardiaceae, Annonaceae, Arecaceae, Caricaceae, Combretaceae, Cucurbitaceae, Euphorbiaceae, Lecythidaceae, Malvaceae, Myrtaceae, Punicaceae, Rhamnaceae, Rosaceae, Rutaceae, Solanaceae, Tiliaceae.

Moraceae: Ficus carica, (Agarwal & Kapoor 1983), not reared. Sapotaceae: Manilkara zapota, (Agarwal & Kapoor 1983), not reared.

Part of plant attacked: fruit.

Biogeographic region. Afrotropical, Oriental, Australasian-Oceanian (?).

Specimens examined. Based on description by Kandybina (1977).

Sources of data and SEM numbers: 240.

Illustrations. • Head, spiracles, creeping welt.

Cite this publication as: ‘L.E. Carroll, A.L. Norrbom, M.J. Dallwitz, and F.C. Thompson. 2004 onwards. Pest fruit flies of the world – larvae. Version: 8th December 2006.’.