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Post by africaone on May 28, 2020 7:34:02 GMT
Just to be clear, it's not my photo.
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Post by africaone on May 27, 2020 8:18:23 GMT
very nice and congrats to have detected in natura such not obvious thing ...
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Post by africaone on May 22, 2020 7:58:24 GMT
which sex ? is it possible to see the photos ? the most obvious charaxter is the subapical black band incomplete in evagore male or dividing orange patch in female.
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Post by africaone on May 2, 2020 7:41:15 GMT
1- nobilis 2- = xiphares (which locality lokks a malawian or Tanzanian one) 5- cithaeron female
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Post by africaone on Apr 30, 2020 8:46:21 GMT
nor gynandro, no morph, none male of ione have this kind of color (as far as I have seen and I have seen a lot being collector of Colotis). I know this strange specimen and found no obvious answer (it is necessar to examine it directly). Two ain thing must be considered. the asymetry of the colored pattern (some patches are bigger on the mauve side, this is not exceptionnal in such variable butterflies)) and the "discolored" area seems to be derived from the mauve of the male (shining) not the orange female one. The only explanation I can find is an accident of colororation of the male mauve apical on one wing. Discolored by sun exposure in the pupa (that can explain the bilateral asymetry) or may be genetic during imaginal disc genese (the fact that it is asymetric is twice exceptional). The other problem with this late is that this color doesn't exist in ione male and if it is a mutation, this had been occured somtimes in the past (as it is one the most common and collected colotis in Africa, it is strange to not find any other). Another artefact remains possible. I have yet had such artefact in papered specimens in which a part of the paper was in contact with a chemical and discolored only the part of the lepido that was in contact (can also be discolored by water during relaxing). Again, necessar to examine the specimen closely. Africans often used such agressive chemical to preserve their collectings as they don't have other way to do it.
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Post by africaone on Apr 13, 2020 8:46:06 GMT
here are 2 specimens of Graphium biokoensis from Tshopo (Kisangani area)
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Post by africaone on Apr 13, 2020 8:36:48 GMT
Yes, I have a scanned copy of the revision. Libert says the species was only known thanks to 2 female specimens. Do you know if that is still the case? there are so few collectings in this area. I don't know any made there recently. but you locality fit with the type locality area.
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Post by africaone on Apr 12, 2020 13:03:53 GMT
I suppose .... you can describe it into Ent afr. you are welcome Do you have the 2004 revision of the genus syrmoptera ?
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Post by africaone on Apr 12, 2020 12:43:10 GMT
I intended to put specimen of biokoensis from congo but I had a message that forum exeeded his volume
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Post by africaone on Apr 12, 2020 12:12:39 GMT
looks like S. mixtura, the male seems not yet known .... the HT female is in Berger (pl 200, fig. 9). decsribed from North East Congo (Sassa)
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Post by africaone on Apr 9, 2020 12:17:20 GMT
some precision Danny's specimens is from Jacques Hecq's collection not Fontaine's one. Overlaet was a colonial territorial administrator based in Kafakumba (western Katanga = actual Lualaba province). He was the firt collector at large scale in Katanga, also in Congo (before the WWII) and a lot of his material have been used for types. He has the famous and unbelievable Eupheadra overlaeti named after him. Also the extraordinary Charaxes overlaeti that is known only by two specimens and that seems to be an hybrid. He specialised in Nymphalidae (including Cymothoe with many unpublished datas). Some of his material seem to have been in hand of Le Moult and have been dispatched in many big collections (but the root is housed in Belgium). Maurice Fontaine was Psychiatre during the colonial Belgian era. He collected intensively in Uele (paulis) and in Kasai and the collection of MRAC is mainly based on his collection. He is also known to have played the main role in the Colias question of hyale / alfacariensis problem (in fact Berger pumped his work). He was prisoner during the WWIII and collected during this time of captivity. He was a first hand breeder and discovered many first instars. Many last records of the Belgium fauna are due to him and his Belgium collection is real treasure housed today in Brussel's museum after an agreement between Lambillionea, the last owner of the plaertic collection, and the Museum. I collected in the past both taboranus and schaffgotschi in Katanga, the last being quite uncommon. I first believed they were only forms of the same species (may be subspecies as they occured in different part of Katanga, the first in the Eastern part more dry and the second in the western part more wet). I was then intrigued when reading Graphium's revision some years ago. May be barcode will help to clarify the real status of both. Thierry
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Post by africaone on Apr 8, 2020 7:57:50 GMT
Thank you so much for the information Chuck, I didn't know you had written about it on insect net, I already read you a year ago here collector-secret.proboards.com/thread/2891/question-colorsHopefully all cases will be solved in the same way with isopropyl, I tell about my tests for whoever is worth the information. Tierra de Sommieres This powder is a powerful degreaser for butterflies as you can see in a post on this forum that I can't find. You cover the butterfly with the dust and it absorbs all the grease without spoiling the specimen, someone commented that it also worked for dynastes, I don't know if it was you, according to my tests it doesn't work in Mecynorhinas, or lucanidos. One week with the coleopteran in the powder and there are no changes. I used terre de sommières for 30 years to degrease butterflies and moths. I let specimens in specimen in a bath of benzene or tetrachlorure or cloth degreaser (time depending of how big is abdomen and quantity of gease) After that I remove the specimen and cover it immediately with powder and remove it carfully after "drying". The advantage is that it sucks all the degreaser and the grease diluted in from the specimen. That needs experience to do correctly and unfortunetely I noted that some specimens wings becamed more fragile (but not so much and not all). The results are spectacular even with blue lycaenid (such as Iolaus) and saturniid or sphingid.
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Post by africaone on Mar 24, 2020 8:34:15 GMT
many yet papered (not easy to access) but at Least Pateka (Kivu) and in Tshopo around Kis. In Katanga it was from Lualaba river between Luena and Bukama.
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Post by africaone on Mar 23, 2020 9:50:30 GMT
africaone You have G. biokoensis from north-eastern DRC? yes, because of confusion with policenes it is not spotted. It is a more indeep forest species than policenes that is found everywhere. This species has a strange story and inland population was confused in many names before being correctly named (nigrescens, policenoides, liponesco). I bred it in Cameroon. I first believed I bred policenes and released nearly all my specimens (including the females ) in nature except a voucher pair. When Collins visited me in Cameroun in 1992, he didn't recognise the pattern of policenes caterpillar but didn't relied it to "biokensis". As he told me it was interesting, I kept then a few pairs but it was at the end of my sejour. I realised what it was when reading Darge's paper (under the name nigrescens). Then liponesco came on the table and after, it was fixed as biokensis. The nomenclatural situation was cleared by Larsen in 1994. But the story for me is earlier. When being very young (18 y at the beginning of the 80s), I put apart of the very common policenes from my region Katanga, some specimens that I suspected "being new" (what I hoped ) and I submitted directly to Berger. He was not convinced (as usual with him) and told me that it was nigrescens (one of the ancient name). The systematic at this time was very unclear but I kept a doubt (regarding some specimen of the true nigrescens, quite different) it was new. I sent then many specimens everywhere to many "specialist" and collectors including BM (< Dick V-W) and SCC (not yet ABRI) and others I don't remember (some are probably reading this post ). Total disappointment that nobody was interested to study the case but everyone wants somme specimens for their collection . It helped me understand how the system works ... That recalls me to publish first instars .
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Post by africaone on Mar 20, 2020 15:10:10 GMT
also missing Graphium biokensis that occurs there (I have in collection)
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