Bactrocera (Bactrocera) distincta ( Malloch, 1931 )

Leblanc, Luc, 2022, The dacine fruit flies (Diptera: Tephritidae: Dacini) of Oceania, Insecta Mundi 2022 (948), pp. 1-167 : 115

Bactrocera (Bactrocera) distincta ( Malloch, 1931)

Figure 21

Distribution ( Fig. 105 ). Fiji ( Viti Levu, Vanua Levu, Lau Group, Rotuma). Futuna. Tonga (Tongatapu Group, Ha’apai Group, Vava’u Group, Niuas Group). Samoa (Savai’i, Manono, Upolu). American Samoa.

Male lure. Cue-lure

Host plants. Category C oligophagous fruit pest ( Vargas et al. 2015) bred from eight host species in three families. Records in Fiji, Samoa, and Tonga: MYRTACEAE : Eugenia brasiliensis . RUTACEAE : Citrus maxima . SAPO- TACEAE: Burckella richii , Chrysophyllum cainito , Manilkara zapota , Planchonella costata , P. membranacea , Pouteria caimito .

Edible hosts common names. Abiu, Brazil cherry, pomelo, sapodilla, star-apple.

Biology. Adults mate at dusk (Allwood 1997). Monthly trapping data illustrated on Figures 106 and 107 , and also published in Litsinger et al. (1991).

Figures

Figure 21. Bactrocera (Bactrocera) distincta (Malloch). A) Head. B) Head and scutum. C) Abdomen, female. D) Abdomen, male. E) Wing. F) Wing, basal costal and costal cells. G) Lateral view, male.

Figure 105. Distribution of oligophagous pest fruit flies in Oceania: Bactrocera umbrosa (Fabricius), B. mucronis (Drew), B. quadrisetosa (Bezzi), B. distincta (Malloch), and B. perfusca (Aubertin). Photo of B. umbrosa by Steve Wilson. Drawing of B. perfusca from Drew (1989).

Figure 106. Mean (±SE) daily captures of Bactrocera distincta (Malloch) in cue-lure traps maintained: A) in Fiji (Viti Levu, Vanua Levu) between September 1991 and August 1992, based on seven trapping sites (n = 81, mean FTD = 1.18), and B) in Samoa (Upolu Island) between January 2000 and June 2001, based on seven trapping sites (n = 123, mean FTD = 1.28).

Figure 107. Mean (±SE) daily captures of Bactrocera distincta (Malloch) in cue-lure traps maintained in Tonga (Tongatapu and Vava’u Islands) between January and December 1995 and 1999, based on 14 trapping sites (n = 185, mean FTD = 0.73).