ARTÍCULO

Colour of the gonapophyses in Cordulogaster boltonii (Golden-ringed Dragonfly) can help determine the stage of metamorphosis in female final instar larvae

Autores: Casanueva, P. (Autor de correspondencia); Sharifi, F.S.; Hernández Minguillón, María de los Ángeles; Campos, F.
Título de la revista: THE BRITISH DRAGONFLY SOCIETY. JOURNAL
ISSN: 1357-2342
Volumen: 35
Número: 1
Páginas: 33 - 38
Fecha de publicación: 2019
Resumen:
The degree of darkening of the gonopophyses in females final instar (F-0) larvae of Cordulogaster boltonii (Donovan) (Golden-ringed Dragonfly) is compared with the four stages (here referred to as 1 - 4) of metamorphosis described by Ferreras-Romero & Corbet (1999) in this species. There is a reasonable degree of correlation, with larvae showing no darkening of the gonopophyses falling mainly stages 1 and 2, whereas those with no more tan 25% of darkening fall almost exclusively into stages 3 and 4. The method described in the current study is a simple method for determining the stage of metamorphosis but it is suggested that, for maxium accuracy, both methods should be used.