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sangamesh
Member Purpuricenus
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India
426 Posts |
Posted - 16/03/2015 : 15:05:10
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![](/public/imgforum/sangamesh/201531615339_st.jpg) ![](/public/imgforum/sangamesh/201531615352_stt.jpg)
I went through the keys but I find difference among the two females posted here (22 mm and 19 mm): the elytral apices, median spot at suture, basal pattern on elytra, pronotum are little different from s. grisator (18 mm male and female, below).
![](/public/imgforum/sangamesh/201531615310_s..jpg) ![](/public/imgforum/sangamesh/201531615327_sttt.jpg)
Are these diff or the same S. grisator? |
Edited by - Xavier on 28/01/2016 15:33:42 |
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Xavier
Scientific Collaborator
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France
12095 Posts |
Posted - 16/03/2015 : 18:18:19
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Here a link to a picture of S. grisator Fab., but not the type. It seems the same species than your pictures 3 and 4. Pattern of 1 & 2 look a little bit different, but the problem is "what is S. grisator Fab. ?? " |
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Francesco
Forum Admin
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Luxembourg
9420 Posts |
Posted - 16/03/2015 : 19:29:15
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In my opinion, beetles imitating barks show a morphological variability of body structures much greater than ones imitating other insects (e.g. Clytini) or having aposematic (=warning) coloration (e.g. Trachyderini, Pyresthini). In other words, the same species may show different structures, while different species might have converging coloration. |
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Xaurus
Member Rosenbergia
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Germany
1907 Posts |
Posted - 17/03/2015 : 00:00:11
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Actually, these spms are known under S. grisator indeed. I believe that nobody has already seen the type in Copenhagen. A picture is very welcome.
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