nightfly's picture

Confusing Caddis

Observed: 22nd September 2010 By: nightflynightfly’s reputation in Invertebratesnightfly’s reputation in Invertebratesnightfly’s reputation in Invertebratesnightfly’s reputation in Invertebratesnightfly’s reputation in Invertebrates
22 Sept 10 sedge from Trosk
22 Sept 10 na Trosk (4)
Description:
Identifications
  •  
    Likely ID
    A caddisfly (Limnephilus)
    Confidence: It's likely to be this, but I can't be certain.
    ID agreements (): 4 People
    • Joshua ParryJoshua Parry’s reputation in InvertebratesJoshua Parry’s reputation in Invertebrates
    • D.M.H.D.M.H.’s reputation in InvertebratesD.M.H.’s reputation in InvertebratesD.M.H.’s reputation in Invertebrates
    • inopinatusinopinatus’s reputation in Invertebratesinopinatus’s reputation in Invertebratesinopinatus’s reputation in Invertebrates
    • Ian WallaceInvertebrates expert
Species interactions

No interactions present.

Comments

D.M.H.'s picture

How about L.rhombicus or

How about L.rhombicus or L.flavicornis?

Www.facebook.com/Dorset.Mushroom.Hunters.

All given ID's are subject to error/ommissions. Please seek independent verification before acting on ANY advice given. BE SAFE =)

nightfly's picture

Hi Mark, I dont think its

Hi Mark, I dont think its rhombicus, I was studying it in a book earlier and it is distinctively marked, a bit larger too. Rhombicus has a diagnostic pale 'rhomboid' (diamond shape) in the centre of the forewing. Gonna check flavicornis now I think its much bolder marked and possibly larger?

Cathal.

nightfly's picture

I was very wrong about

I was very wrong about flavicornis being bolder marked, its actually a pale virtually unmarked Limnephilus. The size of my caddis would be right for the smaller end of the flavicornis range but I think the above insect is too richly marked, too brown.

Cathal.

inopinatus's picture

Variable venation

Looks quite like vittatus to me, and Barnard & Ross suggest that the venation can be variable when they say that fork 3 is "usually" stalked.

Sounds a bit big though, and patterning can also be variable in different species so its perhaps not one that be confirmed to species without a specimen.

nightfly's picture

Hi Inopinatus, I was looking

Hi Inopinatus,

I was looking at the diagram where fork 3 is depicted, I took from the text that the venation was diagnostic and seperated this Limnephilus from all others. I just dont know, as you say it certainly looks like a vittatus. The size wouldn't be that far out that I would disregard the species on that alone. What I mean is my measuring may not have been too exact. I have long since realised how careful caddis measuring needs to be. A millimetre can mean quite a lot. Thanks.

Cathal.