ORCID Profile
0000-0002-8478-7976
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Publisher: Magnolia Press
Date: 05-07-2021
DOI: 10.11646/ZOOTAXA.4996.2.12
Abstract: Themarictera rinhai sp. n. is described from Madagascar. Previously Themarictera was a monotypic genus with only the species, T. flaveolata (Fabricius, 1805) having several synonyms, from continental Africa. A key for identification of both species is provided.
Publisher: Magnolia Press
Date: 29-10-2020
DOI: 10.11646/ZOOTAXA.4868.4.8
Abstract: A new species of Euphranta Loew, E. siruvani David, Hancock & Sankararaman, sp. n. is described from India. Postabdominal structures of E. hyalipennis David & Freidberg and E. haldwanica Hancock & Goodger are illustrated and described. A revised key to Euphranta from India is also provided.
Publisher: Magnolia Press
Date: 18-08-2021
DOI: 10.11646/ZOOTAXA.5023.2.5
Abstract: A new species of Elaphromyia, E. juncta David, Hancock & Sachin, sp. n. is described from India. It can be differentiated from the morphologically similar E. siva Frey and E. pterocallaeformis (Bezzi) by the wing pattern, epandrial characters, morphology of spicules on the eversible membrane and spermathecal shape. Elaphromyia siva Frey and E. yunnanensis Wang are recorded for the first time from India. Records of E. pterocallaeformis (Bezzi) from southern India are regarded as misidentifications. A key to the 7 known non-African species is included.
Publisher: Magnolia Press
Date: 29-09-2022
DOI: 10.11646/ZOOTAXA.5190.3.2
Abstract: The genus Bactrocera Macquart comprises a large group of some 750 species distributed across the Asia-Pacific and Afrotropical regions. Most of these have been described and revised by Drew (1989), Drew & Hancock (1994) and Drew & Romig (2013, 2022). A taxonomic study of such a large and erse group of species provides valuable information that can be used in the elucidation of concepts on biogeography and evolution that are presented in this paper. While a wider discussion of this genus and its many complexes of sibling species awaits a future publication, in this paper we discuss the Bactrocera dorsalis (Hendel) complex in light of current knowledge of biogeography and evolution in the Asia-Pacific region. Within the dorsalis complex, 70 species were recognized in South-East Asia by Drew & Romig (2013) and eight listed for Papua New Guinea and Australia by Drew (1989). Seventy-nine species are now included in this paper. Within this complex, two major groups occur, one with species responding to methyl eugenol and the other to cue lure. The 34 non-cue lure responding group of species are discussed, most of which respond to methyl eugenol and seven of which are recognized as having pest status, namely, B. carambolae Drew & Hancock, B. caryeae (Kapoor), B. dorsalis (Hendel), B. kandiensis Drew & Hancock, B. occipitalis (Bezzi), B. ochroma Drew & Romig and B. papayae Drew & Hancock. An eighth species, Bactrocera invadens Drew, Tsuruta & White is included in this discussion on the basis of its molecular similarity to B. dorsalis. The remaining group of 45 species, mostly cue lure-responding and including the pest species B. pyrifoliae Drew & Hancock and B. syzygii White & Tsuruta, are also discussed. Morphological and ecological data are presented for each pest species and their biosecurity risks assessed. In addition, new data based on further research on the male aedeagus have demonstrated that B. carambolae, B. occipitalis, B. papayae and B. invadens are markedly different from B. dorsalis in the dimensions and shape of the glans and preglans appendix. Based on this evidence, and that presented by Drew & Romig (2016), the withdrawal of B. papayae and B. invadens from synonymy with B. dorsalis by Drew & Romig (2016) remains valid, while the similarity in aedeagus characters between B. papayae and B. philippinensis further supports the synonymisation of these two species. The remainder of the 34 non-cue lure responding species are distributed from the Indian subcontinent, across South-East Asia, Papua New Guinea and north-eastern Australia, some with restricted geographic distributions and specific host plant species. Comments on the reliability of molecular phylogenies in the Dacini are included, with the published mitogenome of ‘Dacus longicornis’ regarded, on morphological evidence, as data based on a misidentification of Dacus (Mellesis) polistiformis (Senior-White), and the recent synonymy of B. albistrigata (de Meijere) with B. frauenfeldi (Schiner) considered to be based on insufficient evidence.
Publisher: Pensoft Publishers
Date: 06-04-2022
DOI: 10.3897/ZOOKEYS.1092.80645
Abstract: Two new species of Platensina Enderlein, P. rabbanii David & Hancock, sp. nov. , and P. flavistigma David & Hancock, sp. nov. , are described from Meghalaya and southern India, respectively. Platensina rabbanii can be differentiated from P. alboapicalis Hering by the presence of a single hyaline indentation in cell r 1 and the apical hyaline band in cell r 2+3 restricted to the apex P. flavistigma differs from P. quadrula Hardy by the presence of a yellow/fulvous pterostigma and shape of the epandrium. DNA barcode sequences of P. acrostacta (Wiedemann), P. flavistigma and P. platyptera Hendel were obtained and reported. Postabdominal descriptions and illustrations of P. acrostacta , P. platyptera and P. zodiacalis (Bezzi) are also provided along with keys to all 23 species and the 7 known from India.
Publisher: Magnolia Press
Date: 17-10-2022
DOI: 10.11646/ZOOTAXA.5195.6.7
Abstract: A new genus and species of fruit fly, Dacimita curvifasciatus David & Hancock, gen. et sp. n. is described from Meghalaya, India. It morphologically resembles Ichneumonopsis Hardy and Monacrostichus Bezzi, the former of uncertain tribal placement and the latter included in tribe Dacini. Phylogenetic analysis based on morphological and molecular characters revealed Dacimita curvifasciatus to be best placed in tribe Gastrozonini in subfamily Dacinae.
Publisher: Magnolia Press
Date: 20-10-2021
DOI: 10.11646/ZOOTAXA.5057.1.5
Abstract: A new species of Euphranta, E. flavothoracica David, Hancock & Sachin, sp. n. is described from India and placed in the zeylanica group of species. Postabdominal structures of E. cassiae (Munro), E. crux (Fabricius) and E. klugii (Wiedemann) are described. A revised key to the 16 species of Euphranta known from India is provided. A new generic and specific synonymy is established: Euphranta Loew, 1862 = Ichneumonomacula Chen, 2020, syn. n. and Dacus figuratus Walker, 1856 (=Euphranta figurata (Walker, 1856))= Ichneumonomacula wangyongi Chen, 2020, syn. n.
Publisher: Magnolia Press
Date: 23-12-2020
DOI: 10.11646/ZOOTAXA.4896.4.8
Abstract: A new species of Hemilea Loew, H. totu David, Hancock & Sachin, sp. n., is described from India. Paratrypeta appendiculata (Hendel) and Vidalia thailandica Hancock & Drew are recorded for the first time from India and a key to species of Hemilea from India and Myanmar is provided.
Publisher: Magnolia Press
Date: 21-07-2022
DOI: 10.11646/ZOOTAXA.5168.2.9
Abstract: A new species of Bactrocera Macquart, Bactrocera (Bactrocera) enderi Maneesh, Hancock and Prabhakar, sp. n., is described from Himachal Pradesh, Northern India and also recorded from Bhutan and northern Pakistan. It belongs to the B. (B.) nigrotibialis complex and a key to the complex is provided. Dacus (Mellesis) fletcheri Drew is newly recorded from India and records of B. (B.) invadens Drew, Tsuruta & White from the Himalayan region are discussed.
Location: Suriname
Location: Australia
Location: No location found
No related grants have been discovered for David Hancock.