Bactrocera (Sinodacus) brevipunctata David and Hancock

David, K. J., Hancock, D. L., Singh, Shakti Kumar, Ramani, S., Behere, G. T. & Salini, S., 2017, New species, new records and updated subgeneric key of Bactrocera Macquart (Diptera: Tephritidae: Dacinae: Dacini) from India, Zootaxa 4272 (3), pp. 386-400 : 397

Bactrocera (Sinodacus) brevipunctata David and Hancock , sp. nov.

( Figures 6a ̄h)

Description. Large sized (6.9̄ 7.5 mm), reddish brown species. Frons fulvous with three frontal setae (first two pairs closely placed) and single orbital seta, ocellar triangle black, ocellus fuscous, outer vertical seta and medial vertical seta present; occiput fuscous with a row of thin, black postocular setae; face fulvous with a transverse black band above oral margin, separate black spots in each antennal furrow, gena fulvous with faint, subocular marking and seta. Scape, pedicel fuscous, first flagellomere dark fuscous, combined length of pedicel and first flagellomere as long as the vertical length of face. Scutum reddish brown with narrow, yellow lateral postsutural vitta tapering posteriorly to end before intra-alar seta and a narrow medial postsutural vitta. Yellow markings as follows: postpronotal lobe, base of transverse suture, apical part of notopleural lobe, anepisternal stripe reaching midway between anterior notopleural seta and notopleural lobe, continued as a broad, transverse spot on katepisternum, 0.7 of katatergite; 0.9 of anatergite. Scutellum yellow, mediotergite and subscutellum brown. Chaetotaxy: 2 scapular setae, 1 anterior notopleural seta, 1 notopleural seta, 1 anepisternal seta, 1 anepimeral seta; 1 postsutural supra-alar seta, 1 post-alar seta, 1 intra-alar seta, 1 scutellar seta. Legs: forefemur fully fuscous, 0.25 of mid and hindfemur fuscous, tibia fuscous, tarsal segments fulvous. Wing (6.1̄ 6.5 mm) predominantly hyaline, cells bc and c fuscous, broad costal band from cell sc to wing apex confluent with vein R4+5 expanded apically to form a large spot extending basally to apices of vein R2+3 and dm-cu crossvein, extension of cell bcu longer than bcu, anal streak well developed. Abdomen petiolate, all tergites reddish brown, except fulvous posterior margin of tergites I+II, broad transverse black band on tergite III and a longitudinal black vitta on tegites IIĪV, males with pecten on tergite III, sternite V of male with a shallow/ flat posterior emargination.

Male genitalia: Epandrium slightly shorter than lateral surstylus, well sclerotised, as high as long, triangular shaped, hyaline setose proctiger, posterior lobe of surstylus 10¯12 times longer than anterior lobe; medial surstylus as long as lateral surstylus. Epandrium distinctly sphaeropedunculate in outline (posterior view). Aedeagus 3.0 mm long, excluding glans (0.43 mm); glans sclerotised with well developed acrophallus and patterned praeputium (triangular); trumpet-shaped subapical lobe and short basal lobe present.

Material examined. Holotype ♂, INDIA, Maharashtra, Konkan region , September 2012, H. R. Sawai ; Paratypes 4♂♂, same data as holotype ( NBAIR) .

Etymology. The specific name is based on the narrow (=brevis) presutural spot (=punctum) on the scutum.

Male parapheromone. Cue lure.

Host plants. Not known/ recorded.

Remarks. Bactrocera brevipunctata is very similar to B. hochii in general scutal, abdominal and wing pattern but can be differentiated by the reduced presutural spots, larger fuscous apical spot on the wing (reaching apices of vein R2+3 and dm-cu crossvein basally) and extensive fuscous areas of all femora. It keys to couplet 6 in subgenus Sinodacus in the key of Drew and Romig (2016), differing from both B. infesta (Enderlein) and B. hochii (Zia) in the broader apical spot on the wing.

Figures

FIGURES 6 a – h. Bactrocera (Sinodacus) brevipunctata sp. nov. a, head (frontal view); b, scutum (dorsal view); c, thorax (lateral view) and legs; d, abdomen; e, wing; f, epandrium, surstyli and proctiger (lateral view); g, epandrium and surstyli (posterior view); h, glans of phallus (lateral view).