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 Key to Rhytidodera White, 1853
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Francesco
Forum Admin

Luxembourg
9093 Posts

Posted - 26/08/2013 :  20:27:38  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
Following Gerard's suggestion and thanks to the numerous pictures of this Forum, I provide a key to the genus Rhytidodera.

Like other keys, the possibility to insert new pictures or to improve the already written key with distribution and biology will allow having a more and more complete guide... thank to your help!
So, I suggest you to periodically check this guide, since new updates could have been added.


Generality

Rhytidodera White, 1853 is an Asian genus belonging to the tribe Cerambycini Latreille, 1804.

This genus is characterised by:
interantennal furrow;
cylindrical body;
posterior legs short;
antennae more or less flattened, shorter than body.

Francesco
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Luxembourg
9093 Posts

Posted - 26/08/2013 :  20:31:22  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
1. Pronotum with longitudinal ridges .......... 2
-. Pronotum irregularly wrinkled ................ 7
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Francesco
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Luxembourg
9093 Posts

Posted - 26/08/2013 :  20:35:21  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
2. Elytra with a post-median transverse dark band ................. 3
-. Elytra with many spots of grey and/or yellow pubescence .... 4

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Francesco
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Luxembourg
9093 Posts

Posted - 26/08/2013 :  20:38:39  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
3. Elytra with 2 long acute spines at each apex; body pubescence dark brown (Borneo) ........ cristata Pascoe, 1866

Photo Gérard Chemin

-. Elytra truncated, nearly unarmed at the apex; body pubescence light brown (Thailand)..... mutabilis Holzschuh, 1993

Photo Gérard Chemin

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Francesco
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Luxembourg
9093 Posts

Posted - 26/08/2013 :  20:44:07  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
4. Elytra rounded at the outer apex (ne-India, Nepal) ... consona Holzschuh, 1995
-. Elytra obliquely truncated at the outer apex ....................... 5
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Francesco
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Luxembourg
9093 Posts

Posted - 26/08/2013 :  21:27:53  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
5. Pronotum with irregular dorsal ridges (Indonesia: Celebes) ...integrifrons Heller, 1897

Photo Andreas Weigel

-. Pronotum with regular dorsal ridges (Asian species) ....................... 6
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Francesco
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Luxembourg
9093 Posts

Posted - 26/08/2013 :  21:32:06  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
6. Body medially smaller (25-35 mm); elytra with yellow pattern and grey pubescence (Nepal, Myanmar, n-Thailand, Laos, Vietnam, China)... bowringii White, 1853

Photo Pierre Haller

-. Body medially larger (30-45 mm); elytra with only grey pubescence (China, n-Vietnam) ... griseofasciata Pic, 1912

Photo Pierre Haller
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Francesco
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Luxembourg
9093 Posts

Posted - 26/08/2013 :  21:42:36  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
7. Antennae flabellate (Laos, Thailand, Borneo) .... grandis Thomson, 1865

Photo Gérard Chemin


-.
Antennae not flabellate .........8

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Francesco
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Luxembourg
9093 Posts

Posted - 26/08/2013 :  21:48:49  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
8. Elytra rounded at the outer apex .............. 9
-. Elytra toothed at the outer apex ............. 12
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Francesco
Forum Admin

Luxembourg
9093 Posts

Posted - 26/08/2013 :  21:50:32  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
9. Body more robust; elytra with longitudinal yellow lines (India) .... robusta Gahan, 1891

Muséum National d'Histoire Naturelle, Paris

-. Body more elongated; elytra with spots of grey and yellow pubescence ............ 10
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Francesco
Forum Admin

Luxembourg
9093 Posts

Posted - 26/08/2013 :  22:02:08  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
10. Clypeus forming a transparent brown field over the mandibles (Borneo) .... clypealis Holzschuh, 2007

Photo Francesco Vitali

-. Clypeus normal ... 11.
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Francesco
Forum Admin

Luxembourg
9093 Posts

Posted - 26/08/2013 :  22:06:10  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
11. Body with spotted pubescence (Korea, China, Taiwan, Vietnam, Laos) ... integra Kolbe, 1886

Photo Gérard Chemin

-. Body with nearly uniform pubescence (Sumatra) ... concolor Nonfried, 1895

Note: I do not know really the difference since, apparently, Nonfried did not know R. integra.
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Francesco
Forum Admin

Luxembourg
9093 Posts

Posted - 26/08/2013 :  22:16:16  Show Profile  Email Poster  Visit Francesco's Homepage  Reply with Quote
12. (Described from Myanmar: Tenasserim. Widespread in Nepal, Thailand, Malaysia and Borneo) ... simulans (White, 1853)

Photo Gérard Chemin

-. (Thailand) ... siamica Nonfried, 1892

Note
: I do not know the difference since, apparently, Nonfried did not know R. simulans either (here, p. 378).
In fact, he confronted his new species to R. cristata! Moreover, all other cerambycids described in that paper are actually synonyms.
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Larry Bezark
Member Rosenbergia

USA
1840 Posts

Posted - 27/08/2013 :  03:48:01  Show Profile  Email Poster  Reply with Quote
Awesome, Francesco (and everyone who posted pics).

Very Helpful.

Larry B.
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Xavier
Scientific Collaborator

France
11303 Posts

Posted - 29/08/2013 :  11:13:39  Show Profile  Email Poster  Reply with Quote
Wonderfull
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Pierre
Member Rosenbergia

Switzerland
1494 Posts

Posted - 30/08/2013 :  11:36:00  Show Profile  Email Poster  Reply with Quote
Ce genre de petite clé illustrée, très pragmatique, ça fait des outils introuvables.
Bravo Francesco, et merci aux contributions de tous!
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