Tuesday, 25 July 2017

A migrant plume at Merthyr Mawr

Paul and I trapped at Merthyr Mawr last night, hoping for an early Portland Moth (no luck on that front). I did a bit of dusking while waiting for darkness to fall, and netted a small plume that I almost dismissed as Adaina microdactyla before I'd had a proper look at it. Luckily I potted it and Colin Hart has now confirmed it as Crombrugghia laetus, a scarce migrant and the first record for Glamorgan.

There was a mini influx of these back in 2011 and I was lucky enough to see one in North Wales. Barry thought he had one at Nitten around the same time, but was without a pot when he saw it and so it was never confirmed. It's nice to get it on the county list at last!

Sunday, 23 July 2017

Cardiff docklands

I drove around a few sites near Cardiff Docks before the rain this morning. The Purple Toadflax plants at Tremorfa Industrial Estate, which held two Toadflax Brocade larvae in 2015, had five larvae on them today.
At Pengam Moors, a very large (for a micro) larva of Depressaria radiella was on Wild Parsnip flowers.
Nearby on the Rhymney saltmarsh I found an occupied mine of Chrysoesthia sexguttella on orache (Atriplex sp) - the 4th VC record and first for Cardiff.

Dunraven dusking.

                          Rush veneer

                        Grapholita janthinana

                        Argyresthia albistria.
                        Rusty dot pearl also netted.

Saturday, 22 July 2017

Creigiau last week

Had two quite good boxes in the garden last week, 49 species on Friday (14 July) and 56 species on Tuesday (18 July) - across the two nights 18 species made their first visit of the year. Highlights included the first ever visits by Anania crocealis, Clay and Narrow-winged Pug.




Always some queries ... is this one a faded Gypsonoma dealbana?


and these two are causing me some grief. The first (from Friday) I thought may be Common Rustic but then I had, what looked like, a definite Common Rustic on Tuesday. They are both very similar in size at approx 15m - so what is the first one? I thought it could possibly be Small Clouded Brindle, but I'm not convinced bby that either. Assistance gratefully received.




Friday, 21 July 2017

Alun valley last night with George and Chris.

                          MV light

                          Leopard moth

                        Dark umber

                       Four-spotted footman

                       Barred rivulet

                       Celypha rivulana

                       Elachista sp, spec retained if you want it Dave?

                        Elachista biatomella, netted by the road at dusk.
                        63 sp in total to my traps inc Brown tail, Slender brindle,
                        Dotted clay, Garden tiger, Aethes rubigana, Euzophera
                        pinguis and Ringed china mark.

Cadoxton Ponds

I trapped at the Dow Corning site that we manage (Cadoxton Ponds) on tuesday night despite the forecast of thunderstorms and I'm glad we did as I had a few moths that were new to me and at least a couple that are uncommon in Glamorgan I believe. Over 340 moths of 100 species in total with over 30 newly recorded for the site (it's only the 8th time I've trapped).
Highlights for me were dusky sallow, Monochroa palustrellus, Epiblema foenella, the crescent, Coleophora trifolii (about 8mm in length and noticeably bigger than another metallic Coleophora caught), vapourer, ghost moth (female), garden tiger and diamond-back moth amongst many other lovely moths. Most frequent were smoky wainscot (35) and lackey (18). Apologies for the quality of all the photographs - my excuse(s) are very poor light, strong wind and tiredness...
Dusky sallow
Monochroa palustrellus


A few I would like help with please:
1. Batia lunaris?

2. Blastobasis lacticolella?

3. Elachista sp.

4. Gypsonoma dealbana?

5. square-spot rustic?

6. Not sure

7. faded wormwood pug?

Thursday, 20 July 2017

Rhymney Estuary

I left two battery-powered traps out on the saltmarsh at Pengam Moors on Tuesday night - the last warm night before the weather cooled off. The traps were tucked out of sight of roads and footpaths - the kind of trapping Ian Morgan specialises in (see Carms blog).


There was nothing massively exciting among the macro-moths, though Round-winged Muslin is new for the Glamorgan bit of ST27 I think.

The micros did include some saltmarsh specialists - there were 9 Gynnidomorpha vectisana in one trap, as well as 30+ Coleophora and a few Scrobipalpa (the latter two will need dissecting to confirm ID).
Gynnidomorpha vectisana