Systematic Entomology (2015) 40, 456-471

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Mark K. Schutze, Nidchaya Aketarawong, Weerawan Amornsak, Karen F. Armstrong, Antonis A. Augustinos, Norman Barr, Wang Bo, Kostas Bourtzis, Laura M. Boykin, Carlos Cáceres, Stephen L. Cameron, Toni A. Chapman, Suksom Chinvinijkul, Anastasija Chomic, Marc De Meyer, Ellena Drosopoulou, Anna Englezou, Sunday Ekesi, Angeliki Gariou-Papalexiou, Scott M. Geib, Deborah Hailstones, Mohammed Hasanuzzaman, David Haymer, Alvin K.W. Hee, Jorge Hendrichs, Andrew Jessup, Qinge Ji, Fathiya M. Khamis, Matthew N. Krosch, Luc Leblanc, Khalid Mahmood, Anna R. Malacrida, Pinelopi Mavragani-Tsipidou, Maulid Mwatawala, Ritsuo Nishida, Hajime Ono, Jesus Reyes, Daniel Rubinoff, Michael San Jose, Todd E. Shelly, Sunyanee Srikachar, Keng H. Tan, Sujinda Thanaphum, Ihsan Haq, Shanmugam Vijaysegaran, Suk L. Wee, Farzana Yesmin, Antigone Zacharopoulou and Anthony R. Clarke (2015)
Synonymization of key pest species within the Bactrocera dorsalis species complex (Diptera: Tephritidae): taxonomic changes based on a review of 20 years of integrative morphological, molecular, cytogenetic, behavioural and chemoecological data
Systematic Entomology 40 (2), 456-471
Abstract: Bactrocera papayae Drew and Hancock, Bactrocera philippinensis Drew and Hancock, Bactrocera carambolae Drew and Hancock, and Bactrocera invadens Drew, Tsuruta and White are four horticultural pest tephritid fruit fly species that are highly similar, morphologically and genetically, to the destructive pest, the Oriental fruit fly, Bactrocera dorsalis (Hendel) (Diptera: Tephritidae). This similarity has rendered the discovery of reliable diagnostic characters problematic, which, in view of the economic importance of these taxa and the international trade implications, has resulted in ongoing difficulties for many areas of plant protection and food security. Consequently, a major international collaborative and integrated multidisciplinary research effort was initiated in 2009 to build upon existing literature with the specific aim of resolving biological species limits among B. papayae, B. philippinensis, B. carambolae, B. invadens and B. dorsalis to overcome constraints to pest management and international trade. Bactrocera philippinensis has recently been synonymized with B. papayae as a result of this initiative and this review corroborates that finding; however, the other names remain in use. While consistent characters have been found to reliably distinguish B. carambolae from B. dorsalis, B. invadens and B. papayae, no such characters have been found to differentiate the latter three putative species. We conclude that B. carambolae is a valid species and that the remaining taxa, B. dorsalis, B. invadens and B. papayae, represent the same species. Thus, we consider B. dorsalis (Hendel) as the senior synonym of B. papayae Drew and Hancock syn.n. and B. invadens Drew, Tsuruta and White syn.n. A redescription of B. dorsalis is provided. Given the agricultural importance of B. dorsalis, this taxonomic decision will have significant global plant biosecurity implications, affecting pest management, quarantine, international trade, postharvest treatment and basic research. Throughout the paper, we emphasize the value of independent and multidisciplinary tools in delimiting species, particularly in complicated cases involving morphologically cryptic taxa.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): J. Hendrichs, Antigone Zacharopoulou, Kostas Bourtzis, David S. Haymer, Keng-Hong Tan, Sunday Ekesi, Khalid Mahmood, Suk Ling Wee

Research topic(s) for pests/diseases/weeds:
identification/taxonomy


Pest and/or beneficial records:

Beneficial Pest/Disease/Weed Crop/Product Country Quarant.


Bactrocera dorsalis
Bactrocera carambolae