Bactrocera (Bactrocera) digressa Radhakrishnan, s.str.
Creators
- 1. Entomology Section, National Research Centre for Citrus, Nagpur- 440010, Maharashtra, India
- 2. Project Coordinator (Honey Bees and Pollinators), CCS Haryana Agricultural University, Hissar - 125 004, Haryana, India Corresponding author email: davidento @ gmail. com
Description
Bactrocera (Bactrocera) digressa Radhakrishnan
Bactrocera (Bactrocera) digressa Radhakrishnan, 1999. Rec.Zool.Surv. India, 97(4):1. Holotype ♀. India (Tamil Nadu: Salem dist., Shevroy Hills, Semmanathan) (ZSI) [not examined]
Bactrocera (Daculus) yercaudiae Drew, 2002. Raffles Bull.Zool., 50(2): 346. Holotype ♂. India (Tamil Nadu: Yercaud, 15 Km from Yercaud) (BMNH) [not examined]; syn.nov.
Material examined
INDIA: Karnataka: 11 ♂, Bangalore, 916m, 10.vii.1989, S. Ramani; 2 ♂, same data except 11.vii.1989; 1 ♂, same data except 4.ii.1989; 2 ♂, same data except 3.vii.1988, G. Bhat; 3 ♂, Bangalore, Hessaraghatta, 916m, 14.iii.1987, G. Bhat; 3 ♂ same data except 23.i.1988; 2 ♂ same data except 9.vii.1988; 2 ♂, 1♀, Bangalore, GKVK, 4.ii.2008, David, K. J.; 1 ♂, same data except 20.i.2008; 1 ♂, same data except 8.vi.2008, Sudha, M.; 1 ♂, Gouribidanur, 29.vi.2009, Praveen; 1 ♂, Mandya, 24-30.vii.1989, Gubbaiah; 2 ♂, Tamil Nadu, Yercaud, 3.vii.1992, S. Ramani (UASB); 2 ♀, Karnataka, Gowribidanur, Kolar, 23.vii.07, Naveen Kumar (NBAII).
Radhakrishnan (1999) described Bactrocera digressa based on two females collected from Salem district, Tamil Nadu. The diagnostic characters of the species are reddish brown scutum, bifid aculeus tip, absence of acrostichal and anterior supra-alar setae. Later, Drew and Raghu (2002) described Bactrocera (Daculus) yercaudiae based on males collected from Yercaud, Tamil Nadu and Bangalore which responded to cue lure. Perusal of original description of the two species showed complete congruence of characters except costal band, which was mentioned as confluent with vein R 2+ 3 in Bactrocera digressa and slightly overlapping R in B. yercaudiae. Material mentioned above which were keyed out as Bactrocera yercaudiae were examined to confirm the identity. Examination of aculeus tip of the females revealed that it has a bifid aculeus and all the characters are in concordance with that of B. digressa except for a slightly overlapping costal band which might have been overlooked by Radhakrishnan (1999) because it is very faint beyond vein R 2+3. Hence we propose B. yercaudiae as a junior synonymn of B. digressa. Since all the Asian species in subgenus Daculus are aberrant Bactrocera s.str. and true Daculus are African, B. digressa is retained in subgenus Bactrocera (Copeland et al., 2004). As per ICZN rules, Bactrocera digressa Radhakrishnan is the valid name. Three females have been reared from fruits of Alangium lamarkii collected from Yercaud, Tamil Nadu and are deposited in BMNH (Ian M. White, pers. comm.)
Notes
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: http://publication.plazi.org/id/5F4ADA57FFE4FFEDBE36C64AFFE0FFA8 (URL)
- Is source of
- https://sibils.text-analytics.ch/search/collections/plazi/A373A22FFFEBFFE2BEA1C54DFB77F952 (URL)
Biodiversity
- Collection code
- BMNH , G , GKVK , GKVK, K, J , M , NBAII , S , S, UASB , ZSI
- Event date
- 1987-03-14 , 1988-01-23 , 1988-07-03 , 1988-07-09 , 1989-02-04 , 1989-07-10 , 1989-07-11 , 1989-07-24 , 1992-07-03 , 2008-01-20 , 2008-02-04 , 2008-06-08 , 2009-06-29
- Type status
- holotype
- Verbatim event date
- 1987-03-14 , 1988-01-23 , 1988-07-03 , 1988-07-09 , 1989-02-04 , 1989-07-10 , 1989-07-11 , 1989-07-24/30 , 1992-07-03 , 2008-01-20 , 2008-02-04 , 2008-06-08 , 2009-06-29
References
- Radhakrishnan, C. (1999) A new species of Bactrocera Macquart (Diptera: Tephritidae: Dacinae) from southern India. Records of Zoological Survey of India, 97 (4), 1 - 4.
- Drew, R. A. I & Raghu, S. (2002) The fruit fly fauna (Diptera: Tephritidae: Dacinae) of the rain forest habitat of the Western Ghats, India. The Raffles Bulletin of Zoology, 50 (2), 327 - 352.
- Copeland, R. S., White, I. M., Okumu, M., Machera, P. & Wharton, R. A. (2004) Insects Associated with Fruits of the Oleaceae (Asteridae, Lamiales) in Kenya, with Special Reference to the Tephritidae (Diptera). In: Evenhuis N. L. & Kaneshiro K. Y. (Eds.) D. Elmo Hardy Memorial Volume. Contributions to the Systematics and Evolution of Diptera. Bishop Museum Bulletin in Entomology, 12, 135 - 164.