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<em>Anastrepha distincta</em>

Anastrepha distincta

Inga fruit fly
Previous scientific names: Anastrepha silvai Lima

Diagnosis

Morphological – adult

This species is in the fraterculus-group.

Features include:

  • frons without brown markings except ocellar tubercle
  • mesonotum with three pale postsutural vittae
  • scutum posteriorly without brown markings or with only a single medial brown spot on scuto-scutellar suture, without brown vittae
  • scutellum entirely yellow or with dark markings only on extreme base of disk
  • subscutellum entirely yellow to orange, or yellow to red-brown medially, dark brown laterally; mediotergite yellow to red-brown medially, dark brown laterally
  • wing with typical Anastrepha pattern (S-band complete or at most interrupted at crossvein r-m, C-band and at least proximal arm of V-band present), C-band and S-band connected, V-band proximal arm as dark as apical half of S band, not connected anteriorly to S-band, V-band distal arm complete
  • abdominal tergites without brown markings
  • oviscape length 2.3 – 3.5 mm
  • aculeus length 2.25 – 3.42 mm
  • aculeus tip length 0.34 – 0.43 mm
  • aculeus tip width: 0.12 – 0.16 mm
  • lateral margins of aculeus tip not curved dorsally.

Morphological – larvae

See Pest Fruit Flies of the World – Larvae website

 

Molecular

DNA barcoding

BOLD reference data available, but cannot be distinguished from A. fraterculus, A. ludens, A. obliqua, or A. suspensa.

PCR-RFLP Test 1

BsrI: Data not available

HinfI: Data not available

HhaI: Data not available

Sau3AI: Data not available

SnaBI: Data not available

SspI: Data not available

Vspl: Data not available

PCR-RFLP Test 2

Data not available

Host Range

Anastrepha distincta utilises Inga species as its preferred host. Also recorded from species of Chrysophyllum, Eugenia, Mangifera, Psidium, and Averrhoa.

Distribution

Distributed from Southern Mexico to Peru and Brazil.

Similar species

While Anastrepha distincta is a distinct species it can be confused with other members of the fraterculus-group, especially A. ludens. It can be separated from A. ludens based on length of oviscape and aculeus and their respective ratios to mesonotum length.

Pest Status

  • Exotic
  • A serious pest of Inga species
  • Also reported occasionally from mango and other commercially important fruits

Attractant/Lure

No known record