Moths: October 2019
Another windy night gave a catch of nine moths of eight species. There was a nice comparison of Chestnut and Dark Chestnut.
The wind kept blowing but there was cloud and so the temperature hovered around 9°C. There were 15 moths of nine species. This included two more Delicates and the first Yellow-line Quaker of the autumn.
A clear night with little wind led to the temperature dropping to 0.8°C. It was no surprise that there were only two moths. One was a Lunar Underwing and the other was our first record this year of Oak Rustic.
A similar temperature but a clear sky led to a catch of 50 moths of 21 species. This included a Small Mottled Willow, a Vestal, three Delicates, four Diamondbacks and a Rush Veneer.
An overcast night kept the temperature above 9.9°C and 162 moths of 37 species were identified plus a Peacock butterfly. Grey Shoulder-knot was new for the year and only about the ninth record. Two November Moth aggs were knew for the autumn. Of note were three each of Diamondback, C. plebjana and Delicate. There were nine Rusty-dot Pearls, two Rush Veneers, a Silver Y and a Palpita vitrealis.
After two unsuitable days the rain and wind stopped and the sky cleared. This led to the temperature dropping to 3.8°C and a very quiet trap. There were just six moths – three Green-brindled Crescents, two Large Wainscots and an Angle Shades.
A more autumnal minimum of 5.4°C but the catch went up a bit to 59 moths of 22 species. This included three Satellites, six Large Wainscots and singles of Rush Veneer, Turnip and Delicate. The first of the November Moth group of species was actually identifiable as Autumnal Moth due to his distinctive genitals!
A quiet night with only 25 moths but this did include a Pearly Underwing and a Delicate.
With drizzly rain around at times the cloud kept the temperature above 9.7°C and there was more moth activity. One hundred and twenty seven moths of 32 species were identified. Local highlights included 16 Black Rustics, five Brown-spot Pinions and a Dusky-lemon Sallow. There were the first Feathered Thorns (two) and Red-green Carpet of the autumn. Moths linked to migration included two Delicates, five Silver Ys and single Scarce Bordered Straw, Pearly Underwing and Vestal.
The night started with a clear sky and a very bright moon so a catch of 55 moths of 21 species was not unexpected. Delicates continued their amazing run with another example. There were also two Rush Veneers and Large Wainscots seem to be emerging with four last night.
After the thunderstorms and squalls which bashed through last night it was a relief to find the trap in one piece and a surprise to find the moths not lined up two by two.
There were 55 moths of 22 species including the first Dark Chestnut of the autumn and yet another Delicate.
It clouded up over night and 96 moths of 26 species were caught. A Convolvulus Hawk-moth was so fresh it was difficult to imagine it having flown far. However a Scarce Bordered Straw was so worn it appeared as if it had swum the Channel. There was also a Delicate, seven Diamondbacks and the first Cypress Carpet of the autumn.
Despite the strong, gusty, wind it was a good haul helped by the cloud cover which kept the temperature above 14.8°C.
There were 133 moths of 20 species. This included another Clancy’s Rustic and five Delicates. The biggest surprise was two Diamondbacks and two Gold Triangles. They must have been very determined to be out in such conditions.
The trap was back in action last night and it was worth it. Local species included seven Deep-brown Darts, two Brown-spot Pinions and the first Pale-lemon Sallow of the autumn. Delicates continued their impressive showing with six and there was a Clancy’s Rustic and a Pearly Underwing amongst 143 moths of 29 species.
With the cloud keeping the temperature above 10°C and the wind dropping away there was a good catch of 366 moths, even if 120 were Lunar Underwings. Eight Deep-brown Darts was a good count and there was another Blair’s Shoulder-knot plus a Diamondback.
The most interesting record was our second ever Southern Oak Bush-cricket.
Whilst the regulars were away a visitor kept the lamp burning. Despite some squally showers another Golden Twin-spot and Scarce Bordered Straw showed up. They also had the first Blair’s Shoulder-knots and Green-brindled Crescents of the year.
The wind dropped, the sky cleared and by morning there was a ground frost despite the thermometer only dropping to 4°C. The catch dropped to 159 moths of 19 species. There was a Convolvulus Hawk and four Delicates plus 16 Black Rustics and the first Bulrush Wainscot of the autumn.
After a strong, gusty, wind swept in from the north carrying heavy showers it was pleasing to find the moth trap in one piece this morning. It was even more pleasing to have a catch of 304 moths even if the species count was down to 20.
Lunar Underwing led the way with 111 and Delicates hung on with another three. Deep-brown Dart (4) and Brown-spot Pinion (2) were examples of regular autumn species which seem to be having a good year. An L-album Wainscot of the form o-album briefly raised hopes of something rarer.
A complete covering of cloud kept the temperature up and resulted in a good catch of 532 moths of 35 species.
Three species, Large Yellow Underwing (131), Lunar Underwing (116) and Setaceous Hebrew Character (152) made up the majority but there was a good supporting cast. This included eleven Delicates, 13 Black Rustics, a Clancy’s Rustic and a Vestal.