Gastrophysa viridula

Fondry des Chiens

comments (10)

Pudding4brains

Lion

Hi Pato, this is some Cryptocephalus, not Chrysolina. There are at least 3 candidates (maybe more) that I can think of and I'm not particularly fit with these ... do you have a good idea of the size maybe? Will try to look at this a bit better (no guarantees), but will remove the current ID/tags for now. Sorry, Arp Posted 5 years ago
1. Patomarazul
  
  Lion
  
  How can yo differentiate them? I think they may have been like 5 mm long but is long ago :-D Posted 5 years ago
2. 1. Pudding4brains
    
    Lion
    
    Here are a few images of Chrysolina varians for comparison:
    
    Ch. varians also comes in green (variable, as the name suggests) but look at the _shape_ of the beetles.
    Chrysolinas are flatter and wider and their head sticks out of the pronotum.
    Cryptocephalus are higher and narrower and have a conspicuously flattend head that is often pulled back into the pronotum. Posted 5 years ago
  2. 1. Patomarazul
      
      Lion
      
      I can't see much difference so I believe the expert :-D Posted 5 years ago
    2. 1. Pudding4brains
        
        Lion
        
        Well, I'm not that much of an expert for these, but I do think they are "obviously" different in shape, so maybe I've learned a little bit over the years after all ... ;o) Posted 5 years ago
      2. Patomarazul
        
        Lion
        
        I should have asked them to show me their ID but I did not want to interrupt :-D Posted 5 years ago
        
        Pudding4brains
        
        Lion
        
        Very considered of you :o) Posted 5 years ago
        
        Patomarazul
        
        Lion
        
        I would not disturb their chance to have babies :-D Posted 5 years ago

Pudding4brains

Lion

Hi Pato, I'm sorry - the external differences between the three candidates that I should reasonably consider for Belgium are too subtle for me to recognise on your images with any certainty. My (ever so slightly) preferred candidate would be Cryptocephalus aureolus, but I really can't rule out sericeus or hypochoerides :-/
I may still ask an expert what he thinks, but don't hold your breath. Posted 5 years ago
1. Patomarazul
  
  Lion
  
  It's Ok :-) Posted 5 years ago