Luanda, Angola 1992

Share your notes and experiences in the field
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LeifKarlsson
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Luanda, Angola 1992

Post by LeifKarlsson »

As a new member this will be my first post and thread here.
Back in the 70's i spent most of my free time as a young teenager out chasing and collecting butterflies and moths here in Sweden and I always had a great interest in entomology.

1989 to 1992 I got the opportunity to work in Angola in southwest Africa.
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When I saw my first Papilio demodocus my desire to start collecting started again but I had no idea how I would be able to do it without net etc.
There were a civil war going on in the country a no ways to get my hands on any entomological equipment.
Back then we had no internet, one free phonecall back home per month and all communication with our company was by Telex...

In 1991 I had the chance to move to the Swedish compound in Miramar where we also had a small backyard.
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During my last months I decided to make my own net and destroyed my mosquito net to make a butterfly net with a 15 cm handle.
Next problem was how to kill the butterflies and moths. I never thought about using the freezer and got the not to bright idea to make use of my first aid kit and use a syringe to inject them with water saturated with salt.

It worked great to kill the butterflies but it was a really bad idea combined with the sewing pins (not stainless) a got my hands on to pin them.
After a while most thoraxes "exploded" with rust and the specimens I will show here are unfortunately in poor condition.

I am at the moment trying to respread and save as much as possible of what I collected.

The thread will be about the butterflies I collected mainly during april and may 1992 at the end of the wet season.
I was quite suprised by the number of species that appeared in a 700 squaremeters backyard in the middle of the capital with 1 600 000 habitants (present population 9 292 000).

I will try to ID them but would love to get confirmations or corrections from the experienced members on this forum.

/Leif Karlsson
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LeifKarlsson
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Papilio demodocus

Post by LeifKarlsson »

This is the species that made me start collecting in Angola.
One question: Is the color of the female at the bottom a normal color variation (I saw only this specimen) ?
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Chuck
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Re: Luanda, Angola 1992

Post by Chuck »

Welcome! Looking forward to your story.
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Re: Luanda, Angola 1992

Post by LeifKarlsson »

Thank you Chuck !
It will take some time to post everything (have only two spreading boards) and I know I have problems with ID on some Belenois and Colotis where I hope I can get some help :)
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Re: Luanda, Angola 1992

Post by Paul K »

LeifKarlsson wrote: Wed Aug 30, 2023 6:10 pm This is the species that made me start collecting in Angola.
One question: Is the color of the female at the bottom a normal color variation (I saw only this specimen) ?
demodocus.jpg
The lower specimen is an older normal variant.
When some yellow Papilio get older the yellow turns dark almost orange in some cases.
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Re: Luanda, Angola 1992

Post by Cabintom »

I'm looking forward to seeing some Angolan specimens!
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Re: Luanda, Angola 1992

Post by LeifKarlsson »

Paul K wrote: Thu Aug 31, 2023 1:25 am When some yellow Papilio get older the yellow turns dark almost orange in some cases.
Thats interesting. I am more used to the colors fading with age.
I am a curious guy and it raises new questions...
- Does it only happen in live specimens ?
- Whats the process behind the color alteration, internal or external influence ?

I tried to have a closer look at the hindwing where there is a transition from normal yellow to darker orange and it looks like this.
scales.jpg
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Maybe the darker scales are a tad darker where they have been more exposed to the sun or something else ...
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Re: Luanda, Angola 1992

Post by LeifKarlsson »

Cabintom wrote: Thu Aug 31, 2023 6:03 pm I'm looking forward to seeing some Angolan specimens!
Thanks ! I´m looking forward to get your opinion one a few Belenois I have drying on the board at the moment.
So much variation in both appearance and size makes them hard for me to ID ...
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The Angolan White Lady

Post by LeifKarlsson »

I only found one more Papilionidae species and that is the Angolan White Lady, Graphium angolanus angolanus.
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Eudocima

Post by LeifKarlsson »

Reading Vernons thread "Three favorite Eudocimas" this should be a female Eudocima materna.
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Re: Luanda, Angola 1992

Post by Chuck »

Paul K wrote: Thu Aug 31, 2023 1:25 am
When some yellow Papilio get older the yellow turns dark almost orange in some cases.
Perhaps analogous, perhaps not: Of the 100 or so Graphium hicetaon (Solomon Islands endemic) I've had, one has darker than normal yellow spots. The specimen appears to be no older (no more flight wear) than any other specimen. By comparison, Graphium codrus blue spots fade to a greenish with age.
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Sphingidae

Post by LeifKarlsson »

The next couple of posts will be the Sphingidae I encountered.

First Daphnis nerii
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Agrius convolvuli

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Hippotion celerio ?

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Hippotion eson ?

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LeifKarlsson
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Hippotion balsaminae ?

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Nephele comma ?

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Cephonodes hylas ?

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This is the last Sphingidae
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Re: Luanda, Angola 1992

Post by Paul K »

LeifKarlsson wrote: Fri Sep 01, 2023 7:46 am
Paul K wrote: Thu Aug 31, 2023 1:25 am When some yellow Papilio get older the yellow turns dark almost orange in some cases.
Thats interesting. I am more used to the colors fading with age.
I am a curious guy and it raises new questions...
- Does it only happen in live specimens ?
- Whats the process behind the color alteration, internal or external influence ?

I tried to have a closer look at the hindwing where there is a transition from normal yellow to darker orange and it looks like this.
scales.jpg

Maybe the darker scales are a tad darker where they have been more exposed to the sun or something else ...
I suppose it is effect of UV exposure.
The part of the yellow on the hidewings which is most of the time covered by forewing remains light yellow.
Note that the black also turns brown in older specimens.
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Re: Luanda, Angola 1992

Post by LeifKarlsson »

Paul K wrote: Fri Sep 01, 2023 5:27 pm I suppose it is effect of UV exposure.
The part of the yellow on the hidewings which is most of the time covered by forewing remains light yellow.
Sounds like a plausible explanation. Thank you Paul !
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