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Gwas neidr gymharol fawr o deulu'r Aeshnidae ('Yr Ymerawdwyr') yw'r Gynacantha dravida. Fel llawer o weision neidr, ei gynefin yw pyllau o ddŵr, llynnoedd, nentydd neu afonydd.
Gwas neidr gymharol fawr o deulu'r Aeshnidae ('Yr Ymerawdwyr') yw'r Gynacantha dravida. Fel llawer o weision neidr, ei gynefin yw pyllau o ddŵr, llynnoedd, nentydd neu afonydd.
Gynacantha dravida,[3][4][1] also known as Indian duskhawker[5] or brown darner,[6] is a species of dragonfly in the family Aeshnidae. It is found in India and Sri Lanka.[7][1][6]
It is a large dragonfly characterized by its homogeneous colouring of dull browns and greens, by its long and thin anal appendages, and by its crepuscular habits. Its principal food appears to be mosquitoes and microlepidoptera. During the day it rests in dark thickets. Fully matured specimens have bright colours; blues and greens developing very late in life. Young specimens have brown color with some dark shades. Females are exactly similar to the males in colors and markings.[8][9][6][10]
It is very closely related to Gynacantha subinterrupta and it is difficult to distinguish them. But the relative lengths of the superior and inferior anal appendages are different. The inferior being more than one-third the length of superiors in G. dravida and less than one-third in G. subinterrupta.[8]
Male
Female
Mating pair
Exuvia
Gynacantha dravida, also known as Indian duskhawker or brown darner, is a species of dragonfly in the family Aeshnidae. It is found in India and Sri Lanka.
Gynacantha dravida is een libellensoort uit de familie van de glazenmakers (Aeshnidae), onderorde echte libellen (Anisoptera).[2]
De soort staat op de Rode Lijst van de IUCN als onzeker, beoordelingsjaar 2009.[1]
De wetenschappelijke naam van de soort is voor het eerst geldig gepubliceerd in 1960 door Lieftinck.
Bronnen, noten en/of referenties
Gynacantha dravida – gatunek ważki z rodzaju Gynacantha należącego do rodziny żagnicowatych.
Gynacantha dravida – gatunek ważki z rodzaju Gynacantha należącego do rodziny żagnicowatych.
Gynacantha dravida là loài chuồn chuồn trong họ Aeshnidae. Loài này được Lieftinck mô tả khoa học đầu tiên năm 1960.[1]
Bài viết về họ chuồn chuồn ngô Aeshnidae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn.
Gynacantha dravida là loài chuồn chuồn trong họ Aeshnidae. Loài này được Lieftinck mô tả khoa học đầu tiên năm 1960.
