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| 1 | 2 |  » Stats |
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30-10-2010, 05:47 PM
|  | Commander of the Wild Empire | | Join Date: Apr 2007 Location: SW London
Posts: 1,083
| | | Flea beetle
not vg picture as it was climbing near top of a wall at work. Only interested in ID because we are doing a species list of critters found in our grounds. About 2mm long.  |
30-10-2010, 06:29 PM
|  | Knight Grand Cross of the Wild Empire | | Join Date: Jul 2007 Location: London
Posts: 11,830
| | | Re: Flea beetle
Evening Toby,
Flea Beetles belong to the Alticini tribe of the Chrysomelidae sub-family Galerucinae. Classically and ideally it would need a specimen - and I would be rather cautious of going further without.
As this is for a survey, I suggest you put it foward as either 'A Flea Beetle' or an Alticin beetle. Still, someone who've seen more of these may be able to suggest something based on the rather dark hind femora...
I think the AIDGAP/FSC series have a book on this family - may include these.
Take care,
Jason
Last edited by Jason Green; 30-10-2010 at 06:31 PM.
|
30-10-2010, 07:47 PM
| | Officer of the Wild Empire | | Join Date: Dec 2008
Posts: 828
| | | Re: Flea beetle
Quote:
Originally Posted by Jason Green  Evening Toby,
Flea Beetles belong to the Alticini tribe of the Chrysomelidae sub-family Galerucinae. Classically and ideally it would need a specimen - and I would be rather cautious of going further without.
As this is for a survey, I suggest you put it foward as either 'A Flea Beetle' or an Alticin beetle. Still, someone who've seen more of these may be able to suggest something based on the rather dark hind femora...
I think the AIDGAP/FSC series have a book on this family - may include these.
Take care,
Jason |
Yes i agree...though it does look close to being Psylliodes affinis, but without having specimen to hand this would be just a guess. |
30-10-2010, 08:04 PM
| | Knight Grand Cross of the Wild Empire | | Join Date: Jul 2007 Location: London
Posts: 11,830
| | | Re: Flea beetle
Ah, nice group suggestion! The elytra have that 'Boiled-sweet' look to them, with the dark hind femora. |
02-11-2010, 09:33 AM
| | Officer of the Wild Empire | | Join Date: Oct 2007 Location: Nanjing, China
Posts: 907
| | | Re: Flea beetle
Looks more like a Longitarsus to me... but there are far too many species of that for comfort! |
02-11-2010, 04:31 PM
| | Officer of the Wild Empire | | Join Date: Dec 2008
Posts: 828
| | | Re: Flea beetle
Quote:
Originally Posted by Acutipuerilis Looks more like a Longitarsus to me... but there are far too many species of that for comfort! | Yes, i believe your right...also these seem to be very tricky to id. |
02-11-2010, 05:15 PM
| | Knight Grand Cross of the Wild Empire | | Join Date: Jul 2007 Location: London
Posts: 11,830
| | | Re: Flea beetle
...lots of ventral stuff. I tried following an online key to the palearctic ones which needed details of the pronotum/margins, hind tarsus' claws, ventral structures, etc.
After about 10 couplets I then realised it was only a key to the genera! I suppose I need to look into a British-based key and WF20X eyepieces for my 'scope... |
03-11-2010, 12:20 PM
|  | Officer of the Wild Empire | | Join Date: Sep 2010 Location: Westerngermany
Posts: 687
| | | Re: Flea beetle
It is Longitarsus spec. And as far as I know it is not sub-family Galerucinae, but sub-family Alticinae.
Regards
Klaas
__________________
Curiosity is the beginning of knowledge. |
03-11-2010, 12:48 PM
| | Knight Grand Cross of the Wild Empire | | Join Date: Jul 2007 Location: London
Posts: 11,830
| | | Re: Flea beetle
Afternoon Klass, welcome to WAB if we haven't spoken before! 
Sub-families... in the British FSC test-key we only seem to have Galerucinae - no mention of Alticinae.
Here, this group is divides between tribes Galerucini ( unwidened hind femora), and Alticini ( widened hind femora) to which the genus Longitarsus belongs.
Maybe a touch of recent splitting/clumping? 
Last edited by Jason Green; 03-11-2010 at 12:57 PM.
|
03-11-2010, 03:57 PM
| | Officer of the Wild Empire | | Join Date: Sep 2010 Location: Westerngermany
Posts: 687
| | | Re: Flea beetle
Hello Jason,
I guess the problem can be, that there are different points of view. The british nomenclature has got Nicrophorus whereas it is called Necrophorus in the german nomenclature. There might be just different points of view that make entomological work more difficult than it needs to be.
Regards
Klaas
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