Body length ~7 mm.
Yellow, elytra with a C-shaped black marking.
Only 3 legs visible; only one metatarse complete (seemingly 4-articulated).
Abdomen missing (displaced to the posterior part of the amber).
Thanks you for every suggestion.
Looks like Rhagiini Kirby, 1837: similar to recent Gaurotes in body form, similar to recent Brachyta in elytral pattern...
The shape of pronotum is different than in most Rhagiini. It more looks like some Lepturinae or Cerambycinae...
Thank you for your kind suggestions!
I add some other pictures of the only metatarsus.
Sorry for the quality, but it is very difficult for my to take better pictures.
The shape of the tarsomere II reminds me of Dorcasominae.
Do you think that this specimen could belong to other families?
It seems to me that Chrysomelidae show more separated antennal supports, smaller mandibles, antennomeres having the same length (here the 3rd article is clearly long and the pedicle very short).
But, might some tetramerous families (e.g. Aderidae) have similar tarsi?
Cerambycidae have 2 tibial spurs, Chrysomelidae - 1 or 0.
Aderidae should be excluded - they are lesser than 5 mm and penultimate tarsomere (3) is lesser than tarsomere 2. Usually...
There are some beetle groups of similar appearance. For complete comparison Oedemeridae, Allecilinae, Lagriinae could be mentioned at the first place. All these beetles have tarsal form 5-5-4, more or less long 11-segmented antennae with antennomere 2 usually shortest, somethat habitually similar (oblong, absence spines on pronotum, long antennae etc). But Cerambycidae will be better interpretation for this beetle, to my mind.
I do not longer think Cerambycidae since Lepturinae shows elongated head.
Species with short head might belong to Obriini, but no Lepturinae or Dorcasominae show a similar head.
Transverse head, nearly without temples, is typical of some Pyrochroidae such as Dendroides or Neopyrochroa (see e.g. http://www.americaninsects.net/b/neopyrochoa-femoralis.html). Tydessa is also very similar in general habitus.
I do not completely know this family, but the head of my fossil seems to exactly fit.
Not Aderidae in my opinion but some of obscure Pyrochroidae genera can be
It should be not Tydessa and other pyrochroid genera. It seems to be Cerambycidae, particularly Lepturinae, e.g. Dinoptera sp. or Lemula sp. Certainly Criocerinae is also fit it I think.
From the look of the mandibles it might be a predator at adult stage, which would rule out Cerambycidae and Chrysomelidae... But I really don't know what this interesting beetle is.
Thanks to everybody!
I add further pictures of the head of this specimen (dorsal and ventral view).
Unfortunately, there is a small piece of wood, which is too close to the dorsal part of head to be eliminated. Moreover, the ventral part is scarcely visible since the amber is curved and too close to the insect to be modified.
What do you think about Ischaliidae?
http://tolweb.org/Ischalia/66150
Detail of the palps.
Ovoid, apically subarticulate?
Very similar to those of this species: https://www.zin.ru/animalia/coleoptera/eng/iscbrakm.htm
After remodelling of the amber, lateral and front view.
There... I begin recognising a Chysomelid..
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