Forum Entomologi Italiani

I found today this cerambycidae larva under the bark of a coniferous tree (I am almost sure it is fir)
The lenght of the specimen is ~ 1 cm

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alexandrupintilioaie(AT)gmail.com

Hi,
Yes, this is cerambycidae larva.
About the species .... i think it could be Arophalus sp. (rusticus ?).
Wait for more other opinions.
Has this larva legs?
Gianfranco what do you think about it? Sure it isn't Rhagium sp.

(Gianfranco cosa ne pensi? Sicuramente non è Rhagium. )

bye

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According to the larval feeding I think it is Tetropium rather than Arhopalus. Alexandru, could you post a crop of the last tergite, showing urogomphi ?

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Gianfranco Sama

"Benedetto colui che ti aiuta a correggere i tuoi errori invece di scagliarteli contro"
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Gershom Sholem

I hope this image will help ....I am curious how long I must wait for the adult

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alexandrupintilioaie(AT)gmail.com

According to Svacha & Danilevsky (1987) - Host plants : Picea, Abies, Pinus, according to CHEREPANOV (1979) also Larlx, Larvae make flat irregular galleries filled with moderately coarse granular frass under bark of dead often relatively fresh trees, standing or fallen, occasionally in roots, mostly in stem. Pupation usually in the wood, in eliptical flat pupal cell at the end of a longer or shorter curved gallery filled with wood particles, but without a distinct »stopper« in the elliptical entrance hole. More rarelv pupation occurs under bark. Usually two-year life-cycle, but the development pattern rathe variable, like in apparently all Tetropium-specics. Larvae overwinter. Adults abundant in May to June.

I think it is Tetropium castaneum. You will have adults (maybe ) next spring (May-June)

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Gianfranco Sama

"Benedetto colui che ti aiuta a correggere i tuoi errori invece di scagliarteli contro"
___________________________________
Gershom Sholem

Thanks you very much for your help

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alexandrupintilioaie(AT)gmail.com

Yesterday I found another larva, but this is bigger, the lenght is about 4 cm.....is the same species

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alexandrupintilioaie(AT)gmail.com

No Alexander, this is Lamiinae; if you found it in the same trunk, then, very likely Monochamus

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Gianfranco Sama

"Benedetto colui che ti aiuta a correggere i tuoi errori invece di scagliarteli contro"
___________________________________
Gershom Sholem

Thank you and yes, I found it in the same wood...whould be great to get this species, i never found it here where I live

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alexandrupintilioaie(AT)gmail.com

If possible, better to leave the larvae in the forest and go there next year.

_________________
Gianfranco Sama

"Benedetto colui che ti aiuta a correggere i tuoi errori invece di scagliarteli contro"
___________________________________
Gershom Sholem

Thank for your advice

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alexandrupintilioaie(AT)gmail.com