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Ophonus (Hesperophonus) subquadratus (Dejean, 1829) - Carabide
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Autore:  T_18 [ 07/01/2014, 14:46 ]
Oggetto del messaggio:  Ophonus (Hesperophonus) subquadratus (Dejean, 1829) - Carabide
Hi,

Is this indeed Ophonus azureus (Fabricius, 1775)? Collected in Sardegna on Light. size: ~8/9mm

Allegati:
IMG_4150verkleint.jpg
IMG_4126verkleint.jpg
Autore:  Notoxus59 [ 07/01/2014, 17:18 ]
Oggetto del messaggio:  Re: Ophonus azureus (Fabricius, 1775)? From Sardegna
Hi Thijmen,
But it has blue reflections, or is without reflections?.

Because it seems to me more a Ophonus rotundatus
Autore:  T_18 [ 07/01/2014, 19:41 ]
Oggetto del messaggio:  Re: Ophonus azureus (Fabricius, 1775)? From Sardegna
Hi Augusto!

The blue reflections are absent or (very) slightly visible. Is the blue reflection in azureus always clearly visible? Do you think this is O. rotundatus instead?
Autore:  Notoxus59 [ 07/01/2014, 20:37 ]
Oggetto del messaggio:  Re: Ophonus azureus (Fabricius, 1775)? From Sardegna
Generally yes, there may be some exceptions (but I have not yet seen, you have to hear other colleagues).

However, the base of the prothorax, your specimen is decidedly rounded and narrow.

There is also another species very similar to rotundatus, and is the subquadratus.

The difference for two species, from the upper tarsus, the rotundatus them hairless

Non so se hai capito il mio pessimo inglese :oooner: .
Autore:  ricdoc57 [ 07/01/2014, 23:24 ]
Oggetto del messaggio:  Re: Ophonus azureus (Fabricius, 1775)? From Sardegna
E se fosse un Ophonus pumilio? :? :? :?
Autore:  Notoxus59 [ 08/01/2014, 16:53 ]
Oggetto del messaggio:  Re: Ophonus azureus (Fabricius, 1775)? From Sardegna
ricdoc57 ha scritto:
E se fosse un Ophonus pumilio? :? :? :?


Ciao Riccardo,
avevo escluso il pumilio per le dimensioni, Thijmen scrive 8-9 mm ed io il più grande che possiedo arriva a malapena a 7,2 mm.
Autore:  T_18 [ 08/01/2014, 18:40 ]
Oggetto del messaggio:  Re: Ophonus azureus (Fabricius, 1775)? From Sardegna
Ciao Riccardo e Augusto!

Yes offcourse I understand you. So, if I'm correct I have to check the upper side of the tarsus: if it show hairs it is subquadratus, tarsus without hairs is rotundatus.

It is 8.5 mm, so this excludes pumilio.
Autore:  Notoxus59 [ 08/01/2014, 19:46 ]
Oggetto del messaggio:  Re: Ophonus azureus (Fabricius, 1775)? From Sardegna
T_18 ha scritto:
Ciao Riccardo e Augusto!

Yes offcourse I understand you. So, if I'm correct I have to check the upper side of the tarsus: if it show hairs it is subquadratus, tarsus without hairs is rotundatus.

It is 8.5 mm, so this excludes pumilio.


:ok: :ok:
Autore:  T_18 [ 08/01/2014, 22:53 ]
Oggetto del messaggio:  Re: Ophonus azureus (Fabricius, 1775)? From Sardegna
Will lett you know!
Autore:  gomphus [ 08/01/2014, 23:38 ]
Oggetto del messaggio:  Re: Ophonus azureus (Fabricius, 1775)? From Sardegna
waiting for the answer... for me :oops: it looks more like subquadratus :oops: :oops: :oops: ...
Autore:  T_18 [ 09/01/2014, 19:50 ]
Oggetto del messaggio:  Re: Ophonus azureus (Fabricius, 1775)? From Sardegna
The specimen does show hairs on the upperside of the tarsi so it is O. subquadratus!

Thanks a lot for your help! :ok:
Autore:  Notoxus59 [ 09/01/2014, 20:09 ]
Oggetto del messaggio:  Re: Ophonus azureus (Fabricius, 1775)? From Sardegna
T_18 ha scritto:
The specimen does show hairs on the upperside of the tarsi so it is O. subquadratus!

Thanks a lot for your help! :ok:


So, if you do not have hair is O. rotundatus
Autore:  T_18 [ 11/01/2014, 18:58 ]
Oggetto del messaggio:  Re: Ophonus azureus (Fabricius, 1775)? From Sardegna
Yes, but this one DOES HAVE hairs on its tarsi so: O. subquadratus

:hi:
Autore:  Notoxus59 [ 11/01/2014, 21:11 ]
Oggetto del messaggio:  Re: Ophonus azureus (Fabricius, 1775)? From Sardegna
T_18 ha scritto:
Yes, but this one DOES HAVE hairs on its tarsi so: O. subquadratus

:hi:


I can not understand then why did you write this :roll: :

The specimen does show hairs on the upperside of the tarsi so it is O. subquadratus!

I understood that they had not. :?
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