The first description of the nymph of Potamanthodes macrophthalmus You, 1984 and reinstatements of the genera Potamanthodes Ulmer, 1920 and Stygifloris Bae, McCafferty, and Edmunds, 1990 (Ephemeroptera: Potamanthidae)
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引用次数: 3
Abstract
Abstract The Chinese endemic mayfly Potamanthodes macrophthalmus You, 1984 is the single species relating the taxon Potamanthodes Ulmer, 1920 to other generic taxa of the family Potamanthidae because it has larger compound eyes and longer penes than congeners. However, its nymphs remained unknown and its detailed imaginal morphology is incomplete until now. Upon newly collected materials and type specimens, the main diagnostic characters of its nymph, which is described for the first time here, are revealed. This includes relatively large eyes, tiny mandibular tusks and remarkable body colour pattern. In imaginal stage, besides longer penes and larger eyes, the blunt apex of penis and shape of bent R1 vein of hindwing are additional recognisable characters. Taxonomically, Potamanthodes presents unique characters, such as MP2 originating at base of CuA in forewing, partially pigmented forewings, acute costal projection on hindwings of imagoes and bristle-like setae row on nymphal forefemora. Therefore, Potamanthodes and Stygifloris Bae, McCafferty, and Edmunds, 1990 stat. rev. are reinstated as genera in this study.
期刊介绍:
Aquatic Insects is an international journal publishing original research on the systematics, biology, and ecology of aquatic and semi-aquatic insects.
The subject of the research is aquatic and semi-aquatic insects, comprising taxa of four primary orders, the Ephemeroptera, Odonata, Plecoptera, and Trichoptera but also aquatic and semi-aquatic families of Hemiptera, Coleoptera, and Diptera, as well as specific representatives of Hymenoptera , Lepidoptera, Mecoptera, Megaloptera , and Neuroptera that occur in lotic and lentic habitats during part of their life cycle. Studies on other aquatic Hexapoda (i.e., Collembola) will be only accepted if space permits. Papers on other aquatic Arthropoda (e.g., Crustacea) will not be considered, except for those closely related to aquatic and semi-aquatic insects (e.g., water mites as insect parasites).
The topic of the research may include a wide range of biological fields. Taxonomic revisions and descriptions of individual species will be accepted especially if additional information is included on habitat preferences, species co-existing, behavior, phenology, collecting methods, etc., that are of general interest to an international readership. Descriptions based on single specimens are discouraged.
Detailed studies on morphology, physiology, behavior, and phenology of aquatic insects in all stadia of their life cycle are welcome as well as the papers with molecular and phylogenetic analyses, especially if they discuss evolutionary processes of the biological, ecological, and faunistic formation of the group.