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Carlo
Member Rosenbergia
Italy
1138 Posts |
 Posted - 21/03/2011 : 21:11:55
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Camerun, 12 mm,
Cordylomera |
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Francesco
Forum Admin
Luxembourg
9420 Posts |
Posted - 25/03/2011 : 08:44:16
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| Mi pare un maschio di Cordylomera laetitiae Téocchi, 1971, descritta dell'Africa Centrale, ma segnalata anche del Camerun e della Costa d'Avorio. |
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Littlebeetle23
Member Purpuricenus
France
296 Posts |
Posted - 25/03/2011 : 09:44:45
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I have this specimen from Tanzania and I identified it as C. vittata Jordan, 1903 with the help of Duffy's revision. It seems very close from C. laetitiae Teocchi, 1971.
I don't have the description of this last species so I don't know if Teocchi compared his new species with C. vittata.
So someone could tell me differences between these 2 species? |
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Francesco
Forum Admin
Luxembourg
9420 Posts |
Posted - 25/03/2011 : 11:56:30
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These specimens seem to be the same species!
I do not have the original description of C. laetitiae but I have seen a picture of a female in Adlbauer's paper concerning cerambycids from Ivory Coast. The picture was fairly small and my (or other's) identification is probably erroneous. I will attach it as soon as possible.
Your problems with attachments derive from the fact that your image had a space in the name (32 2324.jpg). This is a common problem in Web-sites. |
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Francesco
Forum Admin
Luxembourg
9420 Posts |
Posted - 25/03/2011 : 12:09:39
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Voilà.
Size: 11 mm.
Origin: Adlbauer K., 2000 - Bockkäfer aus dem Comoé-Nationalpark in der Elfenbeinküste (Coleoptera, Cerambycidae) - Mitteilungen aus dem Museum für Naturkunde in Berlin, Zoologische Reihe 76 (1): 101-112: p. 104, Fig. 5.
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Littlebeetle23
Member Purpuricenus
France
296 Posts |
Posted - 25/03/2011 : 12:51:41
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I have this paper of Karl Adlbauer, but it's a B&W copy and the pictures are very bad. I'll try to get the paper of Teocchi published in the "Cahiers de la Maboké" where he described this Cordylomera.
It'll take me to have it more than 2 weeks, but as soon as I'll have it I'll tell you if Teocchi talk about a differential diagnosis between these 2 close species. |
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Francesco
Forum Admin
Luxembourg
9420 Posts |
Posted - 25/03/2011 : 13:12:56
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The only character I have detected is that Carlo's specimen has elytra with metallic integuments, while yours has brown-black integuments (corresponding to the description of vittata).
If this is the only differential character, I do not know whether it can be considered as valid in order to separate two species... moreover, variable as Cordylomera are! |
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Littlebeetle23
Member Purpuricenus
France
296 Posts |
Posted - 24/05/2011 : 13:40:07
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J'ai enfin récupéré la description de Cordylomera laetitiae par Téocchi.
A la fin de la description il note ceci:
"Cordylomera laetitiae diffère de Cordylomera vittata Jordan par ses tubercules antennifères émoussés, ses antennes un peu moins longues, l'épine des articles III à VI plus courte, ses plaques pronotales glabres, ses bandes élytrales jaunes moins larges, et surtout par l'absence de dent apicale aux élytres.
Cette espèce est dédiée à mon épouse. Elle se place près de vittata Jordan dont elle ne constitue vraisemblablement, que la forme vicariante qui occupe le centre et le centre-ouest de l'Afrique..."
On peut distinguer les différences entre les 2 spécimens en photos dans ce topic, on voit bien que le spécimen camerounais est C. laetitiae et que le mien de Tanzanie est bien C. vittata.
Mais comme le disait déjà Pierre Téocchi à l'époque, il est fort probable que nous ayons affaire à une seule espèce ayant des formes différentes selon leur répartition en Afrique. |
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Francesco
Forum Admin
Luxembourg
9420 Posts |
Posted - 25/05/2011 : 20:46:46
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Merci beaucoup Mickael.
Ça marche tout, alors!  |
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Cordylomera: laetitiae vs vittata
