Common Tiger + skipper ID.

[Psyche]

Yup. It is T. colon, with those oddly-shaped spot 4 & 5.

TL Seow

[MinuteMaid]

thanks brian and Dr. Seow.

Here's an open wing shot of the dart.

[MinuteMaid]

more tigers. tigers everywhere.

form genutia, at least 9 of them.





form intermedius, only 2.

[MinuteMaid]

so friendly!



on a side note, Dr. Seow, why are some of the tigers showing some white on the hindwing? i also notice some of them are not as orange for the normal ones. are there intermediate forms between the two distinct orange/white variants?

[Psyche]

I am the wrong guy to be explaining this since my knowledge of genetics is rudimentary.

Generally named forms are well-defined varieties without intermediates.

Throughout its extensive range from India to Australia D. genutia have the hindwing orange but sometimes with a variable amount of white shading.

Form intermedius appeared to originate from Sundaland. A gene or supergene (a set of genes acting in concert as one & inherited together) probably confers the white patch on the hindwing.

Some of the shot individuals appeared to be intermediates because form-genutia itself is very variable.

It is easier to see when forms are drastically different. In Papilio polytes the presence or absence of a supergene determines whether the female is f-cyrus or f-polytes.
It is all or none. There is no intermediate, unless there is a breakdown of the supergene or a gene in the set becomes translocated.

TL Seow

[MinuteMaid]

I am the wrong guy to be explaining this since my knowledge of genetics is rudimentary.

Generally named forms are well-defined varieties without intermediates.

Throughout its extensive range from India to Australia D. genutia have the hindwing orange but sometimes with a variable amount of white shading.

Form intermedius appeared to originate from Sundaland. A gene or supergene (a set of genes acting in concert as one & inherited together) probably confers the white patch on the hindwing.

Some of the shot individuals appeared to be intermediates because form-genutia itself is very variable.

It is easier to see when forms are drastically different. In Papilio polytes the presence or absence of a supergene determines whether the female is f-cyrus or f-polytes.
It is all or none. There is no intermediate, unless there is a breakdown of the supergene or a gene in the set becomes translocated.

TL Seow

thanks Seow!

my knowledge of genetics is too, very limited, but well enough to understand what you posted. thanks again.

[Commander]

Nice shots, Lemon. Your photography is certainly improving significantly!