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Mothing Night at Whitchurch – 7th August 2010

We are grateful to Sandra Parkinson for welcoming the Society back to Chalkhills, Whitchurch on Thames, for a very successful mothing night on Saturday 7th August. The site consists of a superb steep south-facing hillside of high-quality chalk grassland (the Local Wildlife Site = LWS) and a grassy valley with woods on either side which runs up east of this from the road at the site of a former vineyard, starting northwards but curving round to the west. .Organiser Norman Hall arrived early and with Sandra’s help set up 4 lights, 2 at the LWS (SU64037785) and 2 half way up the valley, just below the woods on the east side. Lower down the valley, Jan Haseler set up a light over a sheet and a Skinner trap, also adjacent to the woods on the east side. Ricki Bull set up her trap just inside the southern end of the woods, above the vineyard field.

The commonest moth in the valley was, surprisingly, the Straw Underwing and the distinctive little Lime-speck Pug was also present in good numbers. Highlights of Jan’s trap included an August Thorn, a Magpie Moth and a number of Chalk Carpets. Oncocera semirubella, a distinctive pyralid moth and a relative newcomer to VC23, was seen at the Skinner trap, and ultimately 4 examples were recorded in all in the valley. Other visitors included a Dor Beetle and Pipistrelle bats. Hornets were less welcome, and Martin Sell was unfortunate to be stung on his bad ankle. He noted afterwards that he had not tucked his socks into his trousers – members will be advised to do this another time, especially as it also reduces the chances of picking up ticks or harvest mites. Ricki’s trap proved to be very sheltered and a good place for carpets, including Royal Mantle, Pretty Chalk Carpet and Chalk Carpet. Sitochroa palealis, another distinctive pyralid moth, was also recorded here. Norman’s lights in mid-valley produced fewer interesting species, but they were left running overnight and so picked up many more noctuids, including several characteristic autumnal species not seen elsewhere.

The lights at the LWS (also run overnight) were unexpectedly productive. Norman was astonished to find a total of 36 Chalk Carpets in the 2 Robinson traps in the morning. This is a Biodiversity Action Plan (BAP) species that is said to be uncommon!  There were also 45 Mecyna flavalis, a yellow pyralid moth that was seemingly very rare in Berkshire/Oxfordshire a few years ago, but is experiencing resurgence. Also, many more ‘prominents’ were seen here than in the valley, including Maple Prominent. However, despite the differences in the composition of the catches, the total number of species of macrolepidoptera recorded in the valley and at the LWS were virtually the same.

The evening was attended by 10 RDNHS members plus 5 from the Whitchurch-on-Thames Habitat Study Group. Another 4 came at 09:00 next morning to see selected specimens which had been kept to show them. It was a very enjoyable and interesting event.

Bradley

Species

English Name

Total

0015 Hepialus sylvina Orange Swift

2

0169 Zygaena filipendulae Six Spot Burnet

1

0366A Cameraria ohridella

1

0411 Argyresthia goedartella

1

0424 Yponomeuta evonymella Bird-cherry Ermine

1

0438 Swammerdamia pyrella

1

0455 Ypsolopha scabrella

1

0460 Ypsolopha parenthesella

1

0530 Coleophora lixella

1

0658 Carcina quercana

2

0698 Agonopterix kaekeritziana

1

0873 Blastobasis adustella

6

0874 Blastobasis lacticolella

1

0936 Cochylimorpha straminea

1

0937 Agapeta hamana

11

0938 Agapeta zoegana

5

0969 Pandemis corylana Chequered Fruit-tree Tortrix

2

0987 Ptycholomoides aeriferanus

1

1011 Pseudargyrotoza conwagana

1

1043 Acleris aspersana

1

1076 Celypha lacunana

3

1210 Rhyacionia buoliana Pine Shoot Moth

1

1219 Lathronympha strigana

3

1233 Pammene aurita

1

1259 Cydia fagiglandana

1

1260 Cydia splendana

1

1293 Chrysoteuchia culmella

2

1304 Agriphila straminella

39

1305 Agriphila tristella

15

1313 Catoptria pinella

1

1331 Acentria ephemerella Water Veneer

32

1344 Eudonia mercurella

1

1356 Evergestis forficalis Garden Pebble

4

1361 Pyrausta aurata Mint Moth

8

1366 Pyrausta nigrata

6

1370 Sitochroa palealis

1

1396 Mecyna flavalis

45

1405 Pleuroptya ruralis Mother of Pearl

20

1424 Endotricha flammealis

3

1439 Trachycera advenella

3

1441 Oncocera semirubella

5

1452 Phycita roborella

3

1524 Emmelina monodactyla

1

1648 Drepana falcataria Pebble Hook-tip

1

1680 Cyclophora punctaria Maidens Blush

1

1702 Idaea biselata Small Fan-footed Wave

1

1708 Idaea dimidiata Single-dotted Wave

3

1713 Idaea aversata Riband Wave

11

1724x Xanthorhoe spadicearia or ferrugata Twin-spot Carpet agg

1

1728 Xanthorhoe fluctuata Garden Carpet

3

1731 Scotopteryx bipunctaria Chalk Carpet

50

1732 Scotopteryx chenopodiata Shaded Broad-bar

3

1736 Catarhoe cuculata Royal Mantle

1

1738 Epirrhoe alternata Common Carpet

4

1742 Camptogramma bilineata Yellow Shell

2

1781 Horisme vitalbata Small Waved Umber

2

1784 Melanthia procellata Pretty Chalk Carpet

1

1825 Eupithecia centaureata Lime-speck Pug

17

1867 Aplocera plagiata Treble-bar

5

1884 Abraxas grossulariata The Magpie

1

1888 Ligdia adustata Scorched Carpet

1

1906 Opisthograptis luteolata Brimstone Moth

4

1912 Ennomos quercinaria August Thorn

3

1915 Ennomos erosaria September Thorn

1

1921 Crocallis elinguaria Scalloped Oak

4

1931 Biston betularia Peppered Moth

1

1937 Peribatodes rhomboidaria Willow Beauty

8

1981 Laothoe populi Poplar Hawk-moth

2

1997 Furcula furcula Sallow Kitten

1

2000 Notodonta dromedarius Iron Prominent

4

2003 Notodonta ziczac Pebble Prominent

3

2006 Pheosia gnoma Lesser Swallow Prominent

2

2007 Pheosia tremula Swallow Prominent

2

2009 Ptilodon cucullina Maple Prominent

1

2011 Pterostoma palpina Pale Prominent

1

2030 Euproctis similis Yellow-tail

2

2033 Lymantria monacha Black Arches

8

2044 Eilema griseola Dingy Footman

6

2047 Eilema complana Scarce Footman

2

2049 Eilema depressa Buff Footman

1

2050 Eilema lurideola Common Footman

2

2064 Phragmatobia fuliginosa Ruby Tiger

3

2087 Agrotis segetum Turnip Moth

7

2091 Agrotis ipsilon Dark Sword-grass

1

2092 Agrotis puta Shuttle-shaped Dart

15

2102 Ochropleura plecta Flame Shoulder

10

2107 Noctua pronuba Large Yellow Underwing

33

2109 Noctua comes Lesser Yellow Underwing

1

2110 Noctua fimbriata Broad-bordered Yellow Underwing

5

2111 Noctua janthe Lesser Broad-bordered Yellow Underwing

30

2126 Xestia c-nigrum Setaceous Hebrew Character

75

2128 Xestia triangulum Double Square Spot

0

2131 Xestia rhomboidea Square-spotted Clay

4

2133 Xestia sexstrigata Six-striped Rustic

1

2134 Xestia xanthographa Square-spot Rustic

2

2154 Mamestra brassicae Cabbage Moth

1

2194 Mythimna albipuncta White-point

3

2198 Mythimna impura Smoky Wainscot

1

2199 Mythimna pallens Common Wainscot

12

2297x Amphipyra pyramidea or berbera Copper Underwing agg

6

2299 Amphipyra tragopoginis Mouse Moth

2

2303 Thalpophila matura Straw Underwing

118

2316 Cosmia affinis Lesser-spotted Pinion

1

2318 Cosmia trapezina The Dun-bar

24

2321 Apamea monoglypha Dark Arches

24

2341 Mesoligia furuncula Cloaked Minor

13

2342 Mesoligia literosa Rosy Minor

1

2343x Mesapamea secalis or secalella Common Rustic agg

54

2360 Amphipoea oculea Ear Moth

2

2361 Hydraecia micacea Rosy Rustic

1

2382 Hoplodrina blanda The Rustic

5

2384 Hoplodrina ambigua Vines Rustic

11

2423 Nycteola revayana Oak Nycteoline

1

2425 Colocasia coryli Nut-tree Tussock

6

2441 Autographa gamma Silver Y

2

2450 Abrostola tripartita The Spectacle

2

2474 Rivula sericealis Straw Dot

2

List compiled by Norman Hall