sl7246's picture

Earwig

Observed: 17th March 2010 By: sl7246sl7246’s reputation in Invertebratessl7246’s reputation in Invertebrates
IMG 9225
IMG 9228
IMG 9229
Description:

The specimen is shiny brown, is 15 mm long excluding antennae on head (about 1 mm) and ‘forceps' at rere (about 5 mm). It has six legs growing in pairs from three segments behind the head and eight segments without legs. The ‘forceps' are straight and hairy.

Identifications
Species interactions

No interactions present.

Comments

Urophora's picture

This is not an earwig of any

This is not an earwig of any species, but a larval insect (possibly a beetle, but equally perhaps another order).

dshubble's picture

Not an earwig...

An earwig would have short wing cases - looks like two of us were typing at the same time...

Matt Smith's picture

Earwigs and beetles.

This is the second thread with analmost identical insect that has initially been identified as an Earwig, the other was http://ispot.org.uk/node/21472. In general terms I can see why these conclusion has been reached - the two "tails" at the end could appear to be the "pinchers" that are typical of an earwig.

The problem with experienced people producing keys or ID guides for beginners is that it is often quite difficult to put down clearly on paper what appears "obvious" to the "experienced" eye. I would guess that the ID material being used here may not describe the key features well enough for a beginner to understand the "real" differences separating earwigs from beetle larvae.

It would be interesting to know what ID tools or keys were used to get to the initial identity for both this beastie and the previous posting. I can tell it's not an earwig by looking, but that is purely down to experience. Finding out where a key goes "wrong", particualrly if it is aimed at novice users, is an important way of improving the reliability of such keys, particularly if both original posters used the same key.

Tachinid Recording Scheme

www.tachinidae.org.uk

TRS Facebook Page
http://www.facebook.com/#!/pages/Tachinid-Recording-Scheme/376652392364707

sl7246's picture

Earwigs and beetles

Oops! The baysian system produced a number of options of which earwig was closest, fossiking about on Google images suggested the option chosen. Being a novice is not easy.

Matt Smith's picture

Baysian system?

What is a "baysian system" - is it some sort of on-line key you are using for the course?. If so - do you have a link?

Tachinid Recording Scheme

www.tachinidae.org.uk

TRS Facebook Page
http://www.facebook.com/#!/pages/Tachinid-Recording-Scheme/376652392364707

sl7246's picture

Hi Matt, The bayesian key is

Hi Matt,
The bayesian key is part of the iSpot website. You will find it at the bottom of the Useful Links "Species Identification Keys". It was recommended by the Open University 'Neighbourhood Nature' course. The address is:
http://www.ispot.org.uk:8080/webkeys/keyintroduction.jsp?selectedKey=key...
You caught me on the wasp too. We can't go on meeting like this.
Stephen Lalor