Bactrocera aquilonis

Description

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

Body. Body length 7.5–10mm.

Head. Stomal organ: Peg sensilla with few short branches, or with many long branches; other peg-sensilla-like structures absent. Stomal region: secondary lobes short, leaf-like (5–6, large); margins of secondary lobes all entire. Number of oral ridges 8–10; margins serrate, or scalloped (short, well defined, bluntly rounded teeth). Number of accessory plates 8–12; margins serrated. Median oral lobe laterally expanded (?-"anterior margin of oral cavity with a large rounded projection").

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

Anterior spiracles. Anterior spiracular tubules 9–12; in a single uniform row.

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

Posterior spiracles. Slits 3–3.5x longer than wide (about). Dorsal spiracular processes with numerous trunks arising from a short or semicircular base (long processes). Number of dorsal spiracular processes 12–20. Number of ventral spiracular processes 12–20. Number of lateral spiracular processes 6–10.

Host plants

Family	Genus
Anacardiaceae	Anacardium, Mangifera, Spondias
Annonaceae	Annona, Rollinia
Combretaceae	Terminalia
Malpighiaceae	Malphigia
Musaceae	Musa
Myrtaceae	Eugenia, Psidium, Syzygium
Oxalidaceae	Averrhoa
Phyllanthaceae	Phyllanthus
Rhamnaceae	Ziziphus
Rosaceae	Eriobotrya, Malus, Prunus
Rutaceae	Citrus, Fortunella
Salicaceae	Flacourtia
Sapindaceae	Blighia
Sapotaceae	Chrysophyllum, Manilkara
Solanaceae	Capsicum, Solanum

 

Part of plant attacked: fruit.

Biogeographic region and distribution

Australasian

Australia (WA, NT).

Adult taxonomy

Bactrocera (Bactrocera) aquilonis (May)
Strumeta aquilonis May 1965: 62.—Australia. Northern Territory: Nightcliff. HT ♂ QMBA.
 

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.