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<em>Ceratitis quilicii</em>

Ceratitis quilicii

Cape fruit fly

Diagnosis

Morphological – adult

This is a recently described species closely allied to Ceratitis rosa. The description of this taxon is provided below.

Male

Body length

4.81 (3.68–5.68) mm; wing length: 5.55 (4.48–6.08) mm.

Head

Antenna yellow. First flagellomere in lateral view 2–3 times as long as wide, obtuse apically. Arista short to medium pubescent, ventral proximal rays at most twice width of arista at base. Two frontal setae, thinner than, and subequal in length to, anterior orbital seta; two orbital setae, anterior orbital longer than posterior one; ocellar seta at least 4 times as long as ocellar triangle; postocellar seta black, shorter than lateral vertical seta. Frons convex, not protruding in lateral view, yellow to yellowish-white. Genal seta and setulae black. Face and occiput yellowish-white, the latter somewhat darker dorsally.

Thorax

Postpronotal lobe white to yellowish-white, without black middle spot around base of postpronotal seta. Scutum ground colour greyish to greyish-brown, sometimes with orange tinge; with streaks and darker markings but without distinct spots except pair of separate prescutellar white markings, usually with pale yellowish-white area in between. Setae black. Anepisternum on ventral half darker yellowish-brown to brown; with pale pilosity, one anepisternal seta. Anatergite and katatergite white. Scutellum yellowish-white, usually with two narrow separate dark brown spots basally, sometimes less distinct; apically with three separate black spots, extending anteriorly to level of or just anterior to basal scutellar seta. Subscutellum black.

Legs

Slender; yellow or yellowish-white except where otherwise noted; setation mixed pale and black. Forefemur with dispersed rows of long black setulae posterodorsally, posteroventrally shorter and pale; ventral spine-like setae black. Midfemur with few dispersed pale setulae ventrally; midtibia thin at base, moderately and gradually broadened; anteriorly black with conspicuous silvery shine when viewed from certain angle on distal 0.66 to 0.75 (black color sometimes inconspicuous in teneral specimens but silvery shine is always present), black color usually not reaching ventral and dorsal margins, especially on basal part; with black feathering dorsally along distal 0.75 and ventrally along distal 0.66, occasionally to distal 0.75. Hindfemur at distal 0.25 with longer setulae dorsally and ventrally.

Wing

Markings yellowish-brown. Anterior apical band, subapical band and discal band present, posterior apical band absent; anterior apical band not touching discal band; subapical band isolated. Cross-vein R-M situated at or just before midlength of cell dm. Brown streaks and spots present in basal cells.

Abdomen

Ground colour mainly yellow. Tergites 2 and 4 on posterior half with greyish microtrichosity; anterior margin sometimes narrowly brownish coloured, especially laterally. Tergite 3 with posterior half patchily brownish, anterior half yellowish-brown, both parts not clearly demarcated; sometimes more extensively brown. Tergite 5 with basal half brownish, sometimes divided medially by paler spot.

Female

Unknown. Females cannot be differentiated currently and, therefore, no female specimens are included in the type series. The description of the female of C. rosa as given in De Meyer and Freidberg 2006 applies to C. quilicii sp. nov. as well.

 

Morphological – larvae

Data not available.

Molecular

DNA barcoding

Data not available.

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

Myrtaceae:

  • Psidium cattleianum (strawberry guava)
  • Psidium guajava L. (guava)
  • Syzygium jambos (jambos)

Rosaceae:

  • Eriobotrya japonica (loquat)
  • Malus domestica (apple)
  • Prunus persica (peach)
  • Pyrus communis (pear)
  • Rubus species

Rubiaceae:

  • Coffea arabica (coffee)

Sapotaceae:

  • Chrysophyllum magalismontanum (stamvrug)
  • Englerophytum natalense (silver-leaf milk plum)

Distribution

Widely distributed throughout southern and eastern Africa with confirmed records from Botswana, Kenya, Malawi, South Africa, Swaziland, Tanzania and Zimbabwe. It is also known from Réunion Island.

Due to the recent distinction of C. quilicii as a separate species from C. rosa, these distributions may require further resolution as more knowledge is gained of each species’ true geographic range.

Similar species

Similar to C. rosa. The males can be distinguished by minor differences of the mid-tibia, with C. rosa having a broader mid-tibia with black coloration reaching the ventral and dorsal margins of the tibia throughout, while C. quilicii has a more slender tibia, gradually tapering towards the base, and with the black coloration not reaching the ventral and dorsal margins throughout the full length.

Pest Status

  • Exotic

Attractant/Lure

Capilure. Also attracted to EGO lure which appears to be more powerful than trimedlure