Bactrocera minax

Common name  

Chinese citrus fly

Description

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

Body. Body length 13–15mm.

Head. Stomal organ: number of peg sensilla two (small), or none apparent; peg sensilla unbranched; other peg-sensilla-like structures absent. Stomal region: medial secondary lobes elongate, like oral ridges (elongate preoral lobes, appearing similar to small oral ridges); margins of secondary lobes all entire. Number of oral ridges 16–18; margins entire (long, stout, unserrated). Numerous accessory plates present (small, shell-shaped, interlocking with oral ridges along outer margin); margins unserrated (?). Median oral lobe absent or not protruding.

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

Anterior spiracles. Anterior spiracle concave medially. Anterior spiracular tubules 17–19.

Caudal segment (a8) and anal lobes. Anal lobes plainly visible, but not protuberant; simple.

Posterior spiracles. Slits 2.5–3x longer than wide (about). Dorsal spiracular processes with numerous trunks arising from a short or semicircular base (medium processes). Number of dorsal spiracular processes 9–16. Number of ventral spiracular processes 9–16. Number of lateral spiracular processes 4–9.

Host plants

Family	Genus
Rutaceae	Citrus, Fortunella

Part of plant attacked: fruit.

Biogeographic region and distribution

Oriental, Palearctic

e. India, Bhutan, China (Sichuan, Hubei, Hunan, Guangxi).
 

Adult taxonomy

Bactrocera (Tetradacus) minax (Enderlein)
Polistomimetes minax Enderlein 1920: 358.—India. Sikkim. LT ♂ BMNH. Lectotype designated by White & Wang 1992: 277.
Mellesis citri Chen 1940: 133.—China. Sichuan: Chengtu [Chengdu]; & Kiangtsin. ST ♂ ♀ IZAS. Inference of HT by White & Wang 1992: 277 invalid.

 

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.