Bactrocera oleae

Common name  

olive fly

Description

Typical of Bactrocera larvae with the following specific characteristics for the third instar:

Body. Body length 6.5–7mm. Caudal ridge may not be apparent.

Head. Cephalic lobes less developed. Stomal organ: number of peg sensilla two, or three (?); peg sensilla unbranched; other peg-sensilla-like structures absent. Stomal region: secondary lobes short, inflated, leaf-like; margins of secondary lobes all entire. Number of oral ridges 10–12 (in shallow, short rows); margins entire, or serrate, or emarginate, or occasionally incised. Accessory plates absent. Median oral lobe absent or not protruding.

Spinules and creeping welts. Dorsal spinules on segments T1-A2.

Anterior spiracles. Anterior spiracle convex to flat. Anterior spiracular tubules 8–12.

Caudal segment (a8) and anal lobes. Anal lobes plainly visible, but not protuberant, or indistinct, retracted into anal slit, or absent; simple (?).

Posterior spiracles. Slits 3.5–4x longer than wide. Length of slits 52-64 µm. Dorsal spiracular processes with numerous trunks arising from a short or semicircular base (medium to long processes). Number of dorsal spiracular processes 7. Number of ventral spiracular processes 7. Number of lateral spiracular processes 2–4. Basal width of spiracular processes 1.5-4.1 µm. Average number of tips 16-18. Ratio of number of tips to number of trunks 2.6-3.2.

Host plants

Family	Genus
Oleaceae	Olea

Part of plant attacked: fruit.

Biogeographic region and distribution

Afrotropical, Oriental, Palearctic

Eritrea, Kenya, South Africa; introduced s. Europe, Canary Is., North Africa, Middle East, Caucasus, Pakistan, nw. India.

 

Adult taxonomy

Bactrocera (Daculus) oleae (Gmelin)
Musca oleae Rossi 1790: 317.—Italy. Tuscany: Provinces of Firenze & Pisa. T A ZMHU? Type data (Thompson & Pont 1993: 103).
Dacus oleae var. funesta Guercio 1900: 35.—Not stated [Italy]. T A Unknown.
Dacus oleae var. flaviventris Guercio 1900: 35.—Italy. “nella stessa provincia”; & Calabria. ST A Unknown.
Dacus oleae var. asiatica Silvestri 1916: 425.—India. Cherat. ST ♂♀ IZUSN?
Musca oleae Gmelin 1790: 2844.—Gallia meridionali [s. France]; & Italy. T A Unknown. Preocc. Rossi 1790; type data (Thompson & Pont 1993: 35, 103).
Musca oleae Petagna 1792: 685.—Italy. Calabria. T A Unknown. Preocc. Rossi 1790.


 

References

Carroll, L. E., A. L. Norrbom, M. J. Dallwitz, and F. C. Thompson. 2004 onwards. Pest fruit flies of the world – larvae. Version: 8th December 2006. http://delta-intkey.com.

White, I. M., and M. M. Elson-Harris. 1992. Fruit flies of economic significance: their identification and bionomics. CAB International; Wallingford, UK. 601 p.