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Colocasiomyia (Diptera: Drosophilidae) revised phylogenetically, with a new species group having peculiar lifecycles on monsteroid (Araceae) host plants
Fartyal, Rajendra S.; Gao, Jian-Jun; Toda, Masanori J.; Hu, Yao-Guang; Takano, Kohei Takenaka; Suwito, Awit; Katoh, Toru; Takigahira, Tomohiro; Yin, Jian-Tao
2013
Source PublicationSYSTEMATIC ENTOMOLOGY
ISSN0307-6970
Volume38Issue:4Pages:763-782
AbstractThe phylogeny of Colocasiomyia (Drosophilidae) is analysed using data for 70 morphological characters, many of which are re-evaluated from or added to those used previously, for an expanded taxon sample of 24 Colocasiomyia ingroup species. A special focus is put on three species, of which two have remained unresolved for their relationships to other Colocasiomyia species, and the other is a newly discovered species. The analysis results in a single, most parsimonious cladogram, in which a clade comprising the three focal species is recognized along with other clades recovered for the known species groups of Colocasiomyia. Based on this, a new species groupthe gigantea groupis established, including Colocasiomyia gigantea (Okada), C. rhaphidophoraeGao & Toda, n.sp. and C. scindapsaeFartyal & Toda, n.sp. These species of the gigantea group breed on inflorescences/infructescences of the subfamily Monsteroideae (Araceae) exceptionally among Colocasiomyia species, most of which use plants of the subfamily Aroideae as their hosts. Colocasiomyia gigantea uses Epipremnum pinnatum (L.) Engler, C. rhaphidophorae uses Rhaphidophora hookeriSchott and C. scindapsae uses Scindapsus coriaceusEngler as their hosts. The host plants of the gigantea group are epiphytes and differ in the structure of spadix and the fruiting process from those of the Aroideae. To understand how the species of the gigantea group adapt to properties of their host plants, their reproductive ecologymost intensively that of C. giganteais investigated. The lifecycle of C. gigantea is characterized by its relatively slow embryonic development (taking approximately 6 days), the very long duration of the full-grown first instar within the egg capsule (approximately three months) until dehiscence of host infructescence, and its relatively fast larval and pupal development (taking approximately 11 or 12 days). Some morphological adaptations and the reproductive strategy in terms of egg size vs. number' trade-off are discussed in relation to their reproductive habits and peculiar lifecycles.
Subject AreaEvolutionary Biology ; Entomology
Language英语
Document Type期刊论文
Identifierhttp://ir.xtbg.org.cn/handle/353005/10488
Collection支撑系统
Recommended Citation
GB/T 7714
Fartyal, Rajendra S.,Gao, Jian-Jun,Toda, Masanori J.,et al. Colocasiomyia (Diptera: Drosophilidae) revised phylogenetically, with a new species group having peculiar lifecycles on monsteroid (Araceae) host plants[J]. SYSTEMATIC ENTOMOLOGY,2013,38(4):763-782.
APA Fartyal, Rajendra S..,Gao, Jian-Jun.,Toda, Masanori J..,Hu, Yao-Guang.,Takano, Kohei Takenaka.,...&Yin, Jian-Tao.(2013).Colocasiomyia (Diptera: Drosophilidae) revised phylogenetically, with a new species group having peculiar lifecycles on monsteroid (Araceae) host plants.SYSTEMATIC ENTOMOLOGY,38(4),763-782.
MLA Fartyal, Rajendra S.,et al."Colocasiomyia (Diptera: Drosophilidae) revised phylogenetically, with a new species group having peculiar lifecycles on monsteroid (Araceae) host plants".SYSTEMATIC ENTOMOLOGY 38.4(2013):763-782.
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