アカムシユスリカの分類学的検討
スポンサーリンク
概要
- 論文の詳細を見る
A new genus, Tokunagayusurika, is created in the subfamily Orthocladiinae, with Orthocladius akamusi (Tokunaga, 1938) as a monotypic member. This species is quite unique both in morphology and biology as a chironomid. The body size is much larger than other members of the subfamily, and is almost as large as the giant midge, Chironomus plumosus (L.). The larvae are blood red in color, and are found in the bottom mud of eutrophicated lakes. The adults emerge once a year in late autumn. The structure of male genitalia, especially the shape of the style, is highly complicated and does not fit to any of the known genera. The adults are also unusual in that they lack in the comb on the apex of hind tibia. Morphological characters of pupae and larvae are newly described. This species is considered as to be playing a significant role in fixing and removing organic nutrients from eutrophicated lakes, but causes a serious nuisance during the season of its emergence.
- 1978-06-15
論文 | ランダム
- 21-7 VTR再生出力変動要因の一測定法
- 219 二次元超音速インテーク内の流れ構造に関する研究
- Olech - types lemma and Visintin - types theorem inPettis integration and L^{1}_{E'}[E]
- 動作と筋電図からみたスキ-における不整地直滑降の習熟過程の研究
- ラケットヘッドの軌跡と筋電図からみた上級者のフォアハンドストロークとバックハンドストローク