Moths: August 2017
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A couple of degrees cooler last night and the trap was quieter. 187 moths of49 species were recorded. There were two more Scarce Bordered Straws.
The cloud which delivered the rain before dawn kept the temperature a bit higher and there was more activity near the traps. Despite the south-east in the wind there was no obvious immigration of moths. The car park trap held 238 moths of 51 species. Setaceous Hebrew Character pulled level with Vine’s Rustic and there were 29 of each. There was yet another fresh Scarce Bordered Straw. An actinic trap in the Elms yielded Scorched Carpet and Lesser Treble Bar, both new for the year. The trap on the track by the observatory was busy as well. Hedge Rustic was new for the year and there was a second Palpita vitrealis.
On the non-moth front there was a Western Conifer Seed Bug in the car park Trap.
Eighty moths of 36 species included a Scalloped Oak and yet another Scarce Bordered Straw.
Moth activity has been much reduced by the cool, clear nights. Last night was a bit better and there were 32 White-points and 17 Rush Veneers between the two traps. Orange Swift was new for the year.
More of the same but there was a slight increase in numbers including a very freshly emerged Silver Y.
The bright moon adding to the cool night meant the car park trap yielded just 27 moths of 21 species. Interestingly the trap by the obs track (less than 50 metres from the car park) yielded twice as many moths and species. Beautiful Plume was new for the year.
Another calm and clear night with associated temperature below 10°C meant the catch was more like late autumn. There were only 37 moths of 23 species. Only three species had four moths- White-line Dart, Vine’s Rustic and Flounced Rustic.
A calm, clear night led to the temperature dropping to 7.6°C. Moth numbers plummeted accordingly. There were only 43 moths of 33 species.
More news from last night when the Whitehouse yielded our third record of Hoary Footman.
Two traps were run and a variety of moths have been saved to look at even if it rains again. The trap in front of the obs had most species (79) including our 5th record of Epermenia chaerophyllella and a Vestal. The car park trap yielded a Rest Harrow (which apparently is showing in good numbers along the sea-front) and a Birdswing.
A slight drop in the wind meant there were 195 moths of 52 species.This included seven Dark Swordgrasses and 19 White-points.
With the wind forecast to drop further tonight it looks good for another interesting catch in preparation for tomorrow nights checking of the trap contents. All welcome at 1800.
It would be nice to have an overcast night like last night on Friday night in advance of our next open examination of the traps on Saturday.
307 moths of 76 species were identified. Eleven Dark Swordgrass, four Silver Y’s, a Tree-lichen Beauty and a Crocidosema plebjana would have all been considered migrants a few years ago but with colonisation who knows?
Notables included Poplar Kittenn Wormwood, Star-wort and Marbled Green.
There seems to be a new emergence of Archer’s Dart with four examples all of the dark form.
The wind dropped at last but the sky cleared and so the temperature dropped to 9.5°C. There were 112 moths of 53 species. Bordered Straw was new for the year. Five species of wainscot included a Webb’s and a Brown-veined.
Although not many burnet moths have been seen recently pheremone lures had tempted 15 Six-spotted Burnets out by mid-afternoon.
Away from moths this sawfly caused mild palpitations when it flew from the trap. It is very like some Clearwing moths, showing how good their mimicry is.
Also of note was an Ant-Lion in a nice sunny, sandy, spot.