Affiliations 

  • 1 Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology (Institute of Biodiversity); Yunnan University; Kunming; 650091 China; Guizhou Provincial Museum; Guiyang; 550081 China. zhangguang0129@163.com
  • 2 Yunnan Key Laboratory of Plant Reproductive Adaptation and Evolutionary Ecology (Institute of Biodiversity); Yunnan University; Kunming; 650091 China. gaojj@ynu.edu.cn
  • 3 Graduate School of Environmental Earth Science; Hokkaido University; Sapporo 060-0810; Japan; Research Institute for Humanity and Nature; Kyoto 603-8047; Japan; Nagano Environmental Conservation Research Institute; Nagano 381-0075; Japan. takano-kohei-r@pref.nagano.lg.jp
  • 4 Uema 1-2-21; Naha; Okinawa 902-0073; Japan. yafusom@juno.ocn.ne.jp
  • 5 Zoology Division (Museum Zoologicum Bogoriense); Research Center for Biology-LIPI; Jl. Raya Jakarta-Bogor Km. 46; Cibinong 16911; West Java; Indonesia. sungaicola@gmail.com
  • 6 Research Development and Innovation Division; Forest Department Sarawak; KM10; Jalan Datuk Amar Kalong Ningkan; 93250; Kuching; Sarawak; Malaysia. paulusm@sarawak.gov.my
  • 7 Hokkaido University Museum; Hokkaido University; Sapporo 060-0810; Japan. hutian@lemon.plala.or.jp
Zootaxa, 2023 May 05;5278(2):201-238.
PMID: 37518286 DOI: 10.11646/zootaxa.5278.2.1

Abstract

The zeylanica group is one of the six species groups of the anthophilic genus Colocasiomyia de Meijere in the family Drosophilidae. In addition to two known species, five morphospecies have been recognized as members of this species group but left undescribed formally. In this study, species delimitation of these putatively new species was determined by barcoding of the mitochondrial COI (cytochrome c oxydase subunit I) gene and morphological comparison. Phylogenetic relationships within the genus Colocasiomyia were inferred by a cladistic analysis of 89 morphological characters. Based on the results of these analyses, we redefined the zeylanica species group and established two subgroups within it: the zeylanica subgroup comprised of C. zeylanica, C. nepalensis, C. pinangae sp. nov., C. besaris sp. nov. and C. luciphila sp. nov., and the oligochaeta subgroup of C. oligochaeta sp. nov. and C. grimaldii sp. nov. In addition, we briefly address the anthophilic habits of drosophilid flies using palm (Arecaceae) inflorescences, especially of the zeylanica group, compiling scattered collection records from the Oriental and Papuan regions.

* Title and MeSH Headings from MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.