" Welcome to the florafaunauk site , hope you enjoy the pictures and posts giving a detailed insight into the Natural History of our Country throughout the seasons and year "All that the Sun Shines on is beautiful, so long as it is Wild" John Muir "

Monday, 9 September 2013

Autumn Approaching - 2117 Autumnal Rustic Eugnorisma glareosa 2232 Black Rustic Aporophyla nigra

Moth  trapping 125 MV Trap A cold Night following some mid week rain meant few moths

2117 Autumnal Rustic Eugnorisma glareosa

2117 Autumnal Rustic 22252

National Distribution Please Allow Time to Load .

VC 63 Distribution  Please Allow Time to Load

2232 Black Rustic Aporophyla nigra

2232 Black Rustic 22256

National Distribution Please Allow Time to Load .

VC 63 Distribution  Please Allow Time to Load

Why Do they Fly to Light ?

Phototaxis is an organism's automatic movement toward or away from light.Cockroaches are an example of a negatively phototactic organism.You've probably noticed how they scurry back into dark corners. Moths are Positively Phottactic   There is no definitive answer or combination of factors but some theories areA moth's up-down orientation might depend in part on the brightness of the sky relative to the ground.Moth Trapping also attracts Caddis Flies which look very similar to Moths

Are they attracted to anything else ?

Yes fruit odours or juices  in the form of "wine ropes"
What Kind of Light was the Trap  ?

Moths are more sensitive to some wavelengths of light -- ultraviolet, for example -- than they are to others. A white light will attract more moths than a yellow light. Yellow is a wavelength moths don't respond to. The MVL or Mercury Vapour Light emits a high proportion of UV or White Light it is worth noting that not all species are equally attracted to light and, with some, there is even a difference in attraction between the sexes too.

Do they stop Flying ?

In the main Moths can fly throughout the year but like all insects their movement is driven by Temperture , However The Winter moth and December Moth flies through the Winter and even has its own anti freezeeze to make this happen

What do they eat ?
What is more important is what do the caterpillars eat. Moths will avail of many nectar sources at hand from flowers but are very specific and like Butterflies many of the Caterpillar host plants have to be just right as the Moths ability to assimilate the host plant is geared to it

How do they see in the Dark ?

You might think a problem when breeding but moths have the ability to detect and follow chemicals called pheromones that females produce thereby making searching for a mate easier in the dark

Why study Moths ?

Because of the wide variety of species in Britain they are 2500 aprox Moths and their specificity to particular plants they are good Indicator Species of the state of the environment and ecology and reflect changes or problems in it if habitats are lost

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