Records Of Dacine Fruit Flies And New Species Of Dacus (Diptera: Tephritidae) In Bhutan Author Drew, R. A. I. Author Romig, M. C. Author Dorji, C. text Raffles Bulletin of Zoology 2007 2007-02-28 55 1 1 21 journal article 10.5281/zenodo.5331152 2345-7600 5331152 Bactrocera (Hemigymnodacus) diversa (Coquillett) Dacus diversus Coquillett, 1904: 139 . Syntypes in USNM. Dacus quadrifidus Hendel, 1928: 343 . Dacus citronellae Kapoor & Katiyar, 1969: 123 . Dacus (Hemigymnodacus) diversus – Hardy, 1973: 19 . Bactrocera (Hemigymnodacus) diversa – Liang et al., 1993: 138 . Bactrocera (Paratridacus) diversa – Norrbom et al., 1998: 99 . Material examined . – BHUTAN : 1 male , Purana Bastey, 30 Nov.2004 , coll. Karma Namgyel , attracted to methyl eugenol. Specimen in NPPC . Diagnosis . – Face entirely fulvous without dark markings; scutum entirely black, postpronotal lobes and notopleura yellow, mesopleural stripe almost reaching anterior npl . seta dorsally, broad parallel sided lateral postsutural vittae beginning with a small spot anterior to mesonotal suture and ending just behind ia . seta, a narrow medial longitudinal postsutural vitta present; setae: sc . 2; prsc . 2; ia . 1; p.sa. 1; a.sa . 1; mpl . 1; npl . 2; scp . 2; scutellum yellow except for narrow black basal band; legs with femora fulvous with dark fuscous to black subapical spots on outer surfaces of all femora (on the mid femora they cover approximately 1/2 the outer apical surface), fore and mid tibiae fulvous tending dark fuscous basally, hind tibiae dark fuscous, tarsal segments entirely fulvous; wings with cells bc and c colourless, microtrichia in outer corner of cell c only, narrow dark fuscous costal band confluent with R 2+3 and widening across apex of wing, medium width dark fuscous cubital streak present, supernumerary lobe strong and rounded; abdominal terga III- V red-brown with distinct ‘T’ patterns on terga III and IV consisting of a transverse black band across anterior margin of each tergum and a medium width medial longitudinal black band running to hind margin of each tergum, tergum V redbrown with large anterolateral dark fuscous to black corners and a narrow medial longitudinal dark fuscous to black band on anterior 1/2, a pair of red-brown oval shining spots on tergum V. Attractant. – Methyl eugenol. Distribution. – Sri Lanka , India , Nepal , China , Thailand . New record for Bhutan . Hosts. – Flowers of a range of wild and commercial species of the Family Cucurbitaceae . Remarks . – Bactrocera diversa (Coquillett) is a biologically unusual species of Dacinae in that it oviposits into flowers of its host, not fruit. It is readily distinguished by the following characters – face entirely fulvous (no dark patterns), scutum black with lateral and medial postsutural vittae, yellow spot anterior to mesonotal suture, wing with cells bc and c colourless, narrow costal band confluent with R 2+3 , strong supernumerary lobe in males, legs with subapical dark spots on all femora, abdominal terga III-V with black ‘T’ patterns on all terga. It is a pest species in that it causes loss of flowers in commercial crops but does not have quarantine significance for export trade.