Demicryptochironomus (Demicryptochironomus) asamaprimus Sasa et Hirabayashi
- 1. College of Environmental Science and Engineering, Nankai University, Tianjin 300071 Museum of Zoology, Department of Natural History, Bergen Museum, University of Bergen, N- 5007 Bergen, Norway College of Life Science, Nankai University, Tianjin 300071. E-mail: xhwang @ nankai. edu. cn Corresponding author
Description
Demicryptochironomus (Demicryptochironomus) asamaprimus Sasa et Hirabayashi
(Figs 1–3)
Demicryptochironomus asamaprimus Sasa et Hirabayashi, 1991: 117; Sasa and Okazawa (1991a: 53); Sasa and Okazawa (1991b: 106); Sasa (1993: 82).
Material examined. Holotype male (NSM No. 203: 71, misprinted as No. 203: 74 in the original paper), JAPAN: Nagano Prefecture, Asama-Onsen in the suburbs of Matsumoto City, 17.v.1990, light trap.
Diagnostic characters. The species can be separated from other members of the subgenus by the thumblike superior volsella with 2 setae; reduced inferior volsella with microtrichia; prominent frontal tubercles; and AR of about 2.5.
Male (Figs 1–3). As in Sasa and Hirabayashi (1991: 117) with the following corrections and additions:
AR 2.51. Brachiolum with 2 setae, R with 21 setae, R 1 with 20 setae, R 4+5 with 22 setae. Midleg without sensilla chaetica. Tergite IX with 34 setae. Laterosternite IX with 5 setae. Anal tergite bands V-shaped. Phallapodeme 118 µm long. Transverse sternapodeme 82 µm long. Inferior volsella sheet-shaped, covered with microtrichia. Gonocoxite 128 µm long, inner margin with 7 strong setae. Gonostylus 193 µm long, swollen midially, tapering towards apex, inner margin with 20 setae. HR 0.66; HV 2.45.
Distribution. The species is recorded from Japan.
Notes
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Linked records
Additional details
Identifiers
Related works
- Is part of
- Journal article: http://publication.plazi.org/id/7616CE0B1447CD30FFED544DFF9EFFA3 (URL)
- Is source of
- https://sibils.text-analytics.ch/search/collections/plazi/8A2FB6731443CD35FF7A55C8FC8FFEF1 (URL)
Biodiversity
- Collection code
- NSM
- Event date
- 1990-05-17
- Family
- Chironomidae
- Genus
- Demicryptochironomus
- Kingdom
- Animalia
- Order
- Diptera
- Phylum
- Arthropoda
- Scientific name authorship
- Sasa et Hirabayashi
- Species
- asamaprimus
- Taxon rank
- species
- Type status
- holotype
- Verbatim event date
- 1990-05-17
References
- Sasa, M. & Hirabayashi, K. (1991) Studies on the chironomid midges (Diptera, Chironomidae) collected at Kamikochi and Asama-Onsen, Nagano Prefecture. Japanese Journal of Sanitary Zoology, 42 (2), 109 - 128.
- Sasa, M. & Okazawa, T. (1991 a) The chironomids of the Joganji River and other places. Part 1: Studies on the chironomids of the Joganji River, Toyama. In: Some characteristics of Nature Conservation within the Chief Rivers in Toyama Prefecture (The Upper Reach of Jyoganji River, Hayatsuki River and Katakai River). Research Report from Toyama Prefectural Environmental Pollution Research Centre, 1991, 52 - 67, 124, 128 - 134.
- Sasa, M. & Okazawa, T. (1991 b) The chironomids of the Joganji River and other places. Part 7: Studies on the subfamily Chironomidae collected in Toga-Mura, Toyama-Ken. In: Some characteristics of Nature Conservation within the Chief Rivers in Toyama Prefecture (The Upper Reach of Jyoganji River, Hayatsuki River and Katakai River). Research Report from Toyama Prefectural Environmental Pollution Research Centre, 1991, 105 - 124, 126 - 127, 150 - 155.
- Sasa, M. (1993) Studies on the chironomid midges (Yusurika) collected in Toyama and other areas of Japan. Part 5: The chironomids collected from lakes in the Aizu District (Fukushima). In: Some characteristics of water quality and aquatic organisms in the chief lakes in Toyama Prefecture (Lake Nawagaike). Research Report from Toyama Prefectural Environmental Pollution Research Centre, 1993, 69 - 95.