Showing posts with label Orthosia incerta. Show all posts
Showing posts with label Orthosia incerta. Show all posts

Sunday, 6 March 2011

Elementary, my dear reader

Moth identification is a dark art, and last night a famous quotation from Sherlock Holmes came to mind: "When you have eliminated the impossible, whatever remains, however improbable, must be the truth." 

My version, adapted to Moth identification, is as follows: "In March, when you have eliminated all other possible identifications, then the moth is Clouded Drab, no matter how unlike the specimen is to the usual illustrations."

Clouded Drab - Orthosia incerta

I showed my first Clouded Drab last year in April (Click here to see it), and I'm sure you'll agree there is little superficial similarity between the images. Clouded Drab feeds on many broadleaf plants as a larva.

Another timely moth is the March Moth - Alsophila aescularia, which think is a rather delicate little beast:

March Moth (male)
Yet again, the females of the March Moth are wingless. It seems that there's some correlation between the cold-weather moths and flightless females (although it's not exclusive to them). There must be some advantage  in that system, but I can't quite work it out.

My first Beetle for the year is one of the Chrysomelids, or Leaf Beetles - Chrysolina staphylea. I'm seeing more of these each year since I first recorded it 3 years ago.

The Chrysomelid beetle Chrysolina staphylea

It's about the same size as a 7-spot Ladybird, and they can often be found in the same locations.

Sunday, 11 April 2010

Hot Spot

I went to a spot that's usually very good at this time of year (south-west facing vertical banking below a hawthorn hedge) . It proved to be a good choice.

As soon as I saw this little (12mm) hoverfly, I knew she was new to me. She appears to be a female Melangyna, and a couple of microscopic features suggest Melangyna lasiopthalma. Since this would be a first Irish record, I need to go back and get some more solid evidence.


This Small Tortoiseshell was basking and feeding on the Lesser Celandines. It seems in pretty good condition, considering it has overwintered in those freezing conditions:


Common Fumitory - Fumaria officinalis - adds a splash of pink to the predominantly yellow verge:


A couple of weeks ago, I mentioned the tight threads that pull the Coltsfoot head into a downward-facing position. Here's a shot that shows the process:

Primroses were visible in a more sheltered part of the bank:


The queen bumblebees are getting very heavy already, and this B. cryptarum was clumsily crashing from flower to flower. Some appeared unable to fly at all and simply crawled from one flower to the next. I presume her nest is within walking distance!

The fungal rusts don't waste any time. The leaves are quite fresh and already the yellow spots of Uromyces dactylidis are clearly visible on Celandine leaves:


Yet another new member of the Orthosia family, the Clouded Drab - Orthosia incerta - came to light last night. Guess which pollen it eats....