Bactrocera (Bactrocera) gombokensis Drew & Hancock, 1994

Drew, R. A. I., Romig, M. C. & Dorji, C., 2007, Records Of Dacine Fruit Flies And New Species Of Dacus (Diptera: Tephritidae) In Bhutan, Raffles Bulletin of Zoology 55 (1), pp. 1-21 : 3

Bactrocera (Bactrocera) gombokensis Drew & Hancock

Bactrocera (Bactrocera) gombokensis Drew & Hancock, 1994: 24 ; Norrbom et al., 1998: 91. Holotype male in BMNH.

Material examined. – BHUTAN: 1 male, Phuentsholing , 6 May.2000, coll. S. Thapa ; 1 male, Tsirang, 19 Jun.2000, coll. T.D. & S.D ; 1 male, Tsirang, Darachu , 30 May.2001, coll. B. Fletcher ; 4 males, Namling 16 km, 1600 m, 9 Jun.2001, subtropical forest, coll. Brian Fletcher ; 1 male, Lingmethang 11 km, 1100 m, 9 Jun.2001, subtropical forest, coll. Brian Fletcher ; 2 males, Lingmethang , 700 m, 9 Jun.2001, mango tree, coll. Brian Fletcher ; 5 males (15 Nov.2004), 3 males (5 Dec.2004), Samdrup Jongkhar District, coll. Wangdi. All specimens attracted to cue lure. Specimens in NPPC and QDPI .

Diagnosis. – A medium sized species; face fulvous with a pair of large circular black spots; scutum base colour black, postpronotal lobes and notopleura yellow, mesopleural stripe reaching midway between anterior margin of notopleuron and anterior npl. seta dorsally, a pair of medium width parallel sided lateral postsutural vittae ending at ia. seta, medial postsutural vitta absent; setae: sc. 2; prsc. 2; ia. 1; p.sa. 1; a.sa. 1; mpl. 1; npl. 2; scp. 4; scutellum yellow with a narrow black basal band; legs with femora fulvous with large black subapical spots on outer surfaces; wings with cells bc and c colourless, microtrichia in outer corner of cell c only, a narrow fuscous costal band confluent with R 2+3 and remaining narrow around costal margin to end just beyond apex of R 4+5, cubital streak absent but with some pale fuscous in base of cell cup, supernumerary lobe weak; abdominal terga III-V orangebrown with a ‘T’ pattern consisting of a narrow transverse black band across anterior margin of tergum III and widening to cover outer 1/3 of the lateral margins, a narrow medial longitudinal black band over all three terga, anterolateral corners of terga IV and V dark fuscous to black.

Attractant. – Cue lure.

Distribution. – Peninsular Malaysia. New record for Bhutan.

Hosts. – No known record.

Remarks. – Bactrocera gombokensis Drew & Hancock is a non-pest member of the dorsalis complex. It is readily distinguished by the following characters – large black spots on outer apical surfaces of all femora, costal band narrow without apical expansion and cubital streak absent.