Aigronne Valley Wildlife pages

Showing posts with label lichens. Show all posts
Showing posts with label lichens. Show all posts

Saturday, 30 March 2019

I like Lichens

But I don't lick lichen!
It is all in the pronunciation....
anyway.... no matter how you say it...
lichens, and mosses for that matter...are a lovely macro photography subject.
These are just a few from here.... and there....

 Physcia leptalea Lichen.... with thanks to Susan Walter for the ID


Lichens are first colonisers... the mix of fungus and algae allow them to get a foothold on bare rock....


This is one of the so called "Stag's Horn" lichens... along with a yellow Xanthoria species or similar.


Physcia leptalea Lichen.... along with another type of Xanthoria species or similar



Also, lichens look different in dry or wet conditions.... this, and the following one are one and the same....
a Lecanora species... this is when it was wet


... and this after it had dried out!


These are more "Stag's Horn" lichen... taken looking up a tree in the Brenne


And this is perhaps one of the best known types.... "Pixies' Caps"... a Cladonia species..
but, when you start looking....
you will realise that the Cladonia group has more than one species that can be called "Pixies' Caps"
Here it is growing amongst a Polytricum species moss

This is another Xanthoria species or similar lichen, growing with moss... possibly a Hypnum species.
Where lichens lead, mosses follow!
And, if it is damp enough.... along with the mosses, come Liverworts...
this is a Marchantia species... often called Birds Nest Liverwort

And in 2016, it was discovered that lichens are not the symbiotic relationship between an algae and a fungi.... no, indeedy....
it is a relationship between two different groups of fungi... and an algae! See here.




Monday, 26 December 2016

Moth Mondays - The Red-necked Footman

MOTH MONDAYS


The Red-necked Footman
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Arctiidae
Subfamily: Lithosiinae
Genus: Atolmis
Species: Atolmis rubricollis


A chorister for Boxing Day... albeit dressed in black with a red ruff...
all these pictures are of the same small moth... we've only seen it the once!!
[Early July 2014]
It is a woodland species and may well have arrived by accident?

This little moth, another footman, is the Red-necked Footman [Atolmis rubricollis] la Veuve, and is normally found in the forested regions of Europe and Northern Asia during the summer.
As mentioned, this is a black thorax with a collar of red, as on most pictures...
but you can clearly see red near the BACK of the thorax...
this is visible on other pictures on other sites.
We do have large woods very close to us, though, and the amount of woodland on our patch is increasing year on year.

Not the best photograph, but it also shows the red near the back of the thorax.


The caterpillars are found on Oak and Beech trees.. and feed on lichens...
here, they are equally likely to be found on Hornbeam... or probably any other broadleaf tree with tasty lichens!

From Wiki... [with reservations in red]:
The red-necked footman is a small moth that is mostly charcoal grey or deep dark brown (fresh specimens almost black), but has a conspicuous orange thorax, part of which is visible behind the black head as an orange-red collar. [I haven't found ONE picture that shows this... they all show a black thorax with a red or orange collar] The hindwings are a brownish-grey colour. The antennae and legs are black and the end of the abdomen is yellowish-orange or golden yellow. The wings are tightly folded together around the body and have pleated, squared-off ends.[again I haven't found ONE picture that shows this] The wingspan is 25 to 35 mm (1.0 to 1.4 in) and the length of the forewings is 15 to 18 mm (0.6 to 0.7 in).

The white eggs of the red-necked footman are laid in small groups in crevices in the branches of trees, especially those of old firs.[not according to all the other references]. They grow to a length of about 27 mm (1.1 in). Their head is black with a bold diagonal white stripe on either side. Their main colour is dark greenish-grey marbled with cream. Each segment bears six tiny reddish yellow warts which bear black hairs. [in fact, they are so lichen-like, that in one photograph on lepidoptera.eu... the caterpillar mid picture is almost invisible!] The caterpillars feed on lichens growing on the trunks and branches of trees, and can be found between August and October. They pupate before winter sets in and overwinter as glossy brownish red pupae, in a loose cocoon buried among moss and leaf litter. The moths fly between May and July depending on their location. They are mostly nocturnal, being attracted to lights, but also sometimes fly by day. Sometimes the moths feed at Scabious and other flowers in the sunshine, but usually rest in day-time on the long branches of firs [read trees] overhanging paths in woods, where they maybe obtained by beating.
Shown here on the first part of my index finger, this shows how small it is.
The red-necked footman is found in Europe South to the Mediterranean and East across the Palearctic to temperate Asia, including Siberia as far east as the Amur River and China. It is found in parts of Ireland, and in the United Kingdom is present in the south-westerly counties of England and Wales. Records from other parts of the United Kingdom probably represent accidentals and not breeding populations. It is a woodland species found in deciduous and coniferous woodland, especially on spruce trees, but also on pine, oak and beech. It likes to be near streams in cool wooded valleys in upland regions.

For interest... on the German site, a Red-necked Footman is pictured mating with an Orange Footman [Eilema sorocula]... whether or not anything came of this relationship in 2015 we are not told????

From UK Moths:

Red-necked Footman Atolmis rubricollis
(Linnaeus, 1758)
Wingspan 25-35 mm.

A primarily woodland species, which is distributed locally in the south and west of England and Wales, and parts of Ireland. Occasional records from elsewhere [in the UK] are considered to be probable migrants.

The single generation flies in June and July, when it can sometimes be found flying in the daytime. It is also nocturnal, coming to light.

Feeding on lichens and algae growing on tree-trunks, the larvae live in autumn, and the species overwinters as a pupa.

Next Monday... The Orange Footman....



________________________________________________________
Sources
Other than Wikipedia.... and personal observations!
Moths and Butterflies of Europe and North Africa [ also known as Leps.it]
A superbly illustrated site.... marvellous on the Micromoths...
but difficult to use on a tablet/iPad.... an awful lot of scrolling needed.

Lepidoptera.eu   An excellent resource... with distribution maps

UK Moths This is quite a simple site... but nicely put together...
and if you wait for them to come up... UK distribution maps

The German site Lepiforum.de - For really good samples of photos...
including museum specimens: to use....
Enter the Latin name and then select the Latin name from the list of pages found.
There is probably a lot more on this site... but I don't read [or speak] German!!

Monday, 19 December 2016

Moth Mondays - The Rosy Footman

MOTH MONDAYS


The Rosy Footman
Kingdom: Animalia
Phylum: Arthropoda
Class: Insecta
Order: Lepidoptera
Superfamily: Noctuoidea
Family: Arctidae
Genus: Miltochrista
Species: Miltochrista miniata

Perhaps the prettiest of the Footmen is...
The Rosy Footman [Miltochrista miniata] la Rosette

They are a very distinctive moth....
pale flesh- yellow forewings with a rosy pink blush towards the outer edge
with a black squiggly line... like a sine wave... with black oval dots towards the hind edge.
There is also an angled black line at the thorax end of the forewing....
and pale yellow hindwings with a yellow to grey abdomen.
It is Footman sized, but holds its wings more like the Tiger Moths.


It is cold in the early mornings... you can see the dew on this.



The caterpillars are still known as woolly bears, but look more like a shoe polishing brush, certainly not woolly!!
"lepiforum.de" has good pictures....
this one and this one in particular show the shoebrush.



The Rosy Footman is a moth of the family Arctiidae. It is found in the temperate parts of the Palearctic ecozone Europe, through to Japan, but may be replaced by Miltochrista rosaria in the East Palearctic. (Looks the same in pattern.... but is yellow)

The wingspan is 23–27 mm.
Flesh-coloured ground colour, rose-red margin to the forewing, and on this wing a black dentate line beyond the middle, and black, elongate spots before the margin. In the male the costa is curved upwards beyond the apex of the cell.
((In ab. rosaria (now full species Miltochrista rosaria), which is commoner in the east of the area of distribution than in the west, and is perhaps a distinct species, the ground colour is more yellow; and in ab. crogea the wings are quite pale yellow, the forewing being edged with bright yellow.))

The moth flies from June to September depending on the location
[July and August in the UK].
Often occurs singly, in broadleaf and mixed forests, on moors, at road-side ditches, on umbellifers or scabious.

Egg oval, yellow. Larva grey, with brownish head, with long and dense hairs, hibernating, until June on lichens on walls and fences. The caterpillars feed on lichen. Pupa black-brown, abdomen with yellow incisions, in a cocoon densely intermixed with hairs.

This one is lit more from underneath...
but the three pictures here show only slight variation.


Next Monday... Another less ordinary footman....



________________________________________________________
Sources
Other than Wikipedia.... and personal observations!
Moths and Butterflies of Europe and North Africa [ also known as Leps.it]
A superbly illustrated site.... marvellous on the Micromoths...
but difficult to use on a tablet/iPad.... an awful lot of scrolling needed.

Lepidoptera.eu   An excellent resource... with distribution maps

UK Moths This is quite a simple site... but nicely put together.

The German site Lepiforum.de - For really good samples of photos...
including museum specimens: to use....
Enter the Latin name and then select the Latin name from the list of pages found.
There is probably a lot more on this site... but I don't read [or speak] German!!