subimago การใช้

• The only stage ( instar ) between these two is the subimago.
• The subimago stage does not survive for long, rarely for more than 24 hours.
• A female subimago of a March Brown mayfly ( " Rhithrogena germanica " ).
• When the fully developed nymph rises to the surface to emerge as an adult, it first enters a subimago stage.
• In some species, the transformation of the nymph occurs underwater and the subimago swims to the surface and launches itself into the air.
• Members of the order Ephemeroptera ( mayflies ) do not have a pupal stage, but they briefly pass through an extra winged stage called the subimago.
• It emerges as a subimago at the end of winter, and can be distinguished from similar species by a dark spot on the femur of each leg.
• An interesting theory here is that the pupal stage is actually a strongly modified and extended stage of subimago, but so far it is nothing more than a theory.
• Depicted here is a female subimago of the March Brown, " Rhithrogena germanica ", which is a faunistic rarity and on the red list of endangered species.
• This book provides an up-to-date reference for Ephemeroptera identification, including last instar larvae ( nymphs ), subimago ( dun ), and male and female imagines.
• Modern mayflies have eliminated all the instars between imago and nymph, except the single instar called subimago, which is still not ( at least not in the males ) fully sexually mature.
• Subimago and adult mayflies do not have functioning mouthparts and do not eat; the nymphs are mainly detritivores, feeding on organic particles that are moved into their burrows by the current of water caused by their constantly beating gills.
• In more primitive fossil forms, the preadult individuals had not just one instar but numerous ones ( while the modern subimago do not eat, older and more primitive species with a subimagos were probably feeding in this phase of life too as the lines between the instars were much more diffuse and gradual than today ).
• Mayflies are the only insects to have two distinct adult stages : a subimago, which moults into the imago . " Rhithrogena germanica " has the longest lasting subimago stage of any mayfly, allowing up to four days before moulting into the imago, during which time the subimago rests in a tree near the river it emerged from.
• Mayflies are the only insects to have two distinct adult stages : a subimago, which moults into the imago . " Rhithrogena germanica " has the longest lasting subimago stage of any mayfly, allowing up to four days before moulting into the imago, during which time the subimago rests in a tree near the river it emerged from.
• Mayflies are the only insects to have two distinct adult stages : a subimago, which moults into the imago . " Rhithrogena germanica " has the longest lasting subimago stage of any mayfly, allowing up to four days before moulting into the imago, during which time the subimago rests in a tree near the river it emerged from.