Portland Bird Observatory
and Field Centre


Wildlife Diary - July 2003


 
 
31st July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 25 Silver Y, 16 Nomophila noctuella, 3 Dark Sword Grass, 3 Straw Dot, 2 Plutella xylostella and 2 Small Mottled Willow.
28th July Red Admirals and Painted Ladies (locally bred or newly arrived?) have recently become very conspicuous all over the island, and smaller numbers of Hummingbird Hawk-moths are also being reported from many sites. Immigrant and dispersive moths in the Obs garden moth-traps this morning: 9 Silver Y, 5 Plutella xylostella, 3 Nomophila noctuella, 2 Dark Sword Grass and 1 Straw Dot

 

Vestal - 27th July 2003 Martin Cade

 

27th July At least 2 Clouded Yellows were at the Bill today. Immigrant and dispersive moths in the Obs garden moth-traps this morning: 18 Silver Y, 6 Dark Sword Grass, 2 Nomophila noctuella, 1 Plutella xylostella, 1 Udea ferrugalis and 1 Vestal
26th July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 8 Silver Y, 3 Nomophila noctuella, 2 Plutella xylostella, 2 Dark Sword Grass, 1 Dog's Tooth and 1 Small Rufous
25th July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 2 Plutella xylostella, 2 Silver Y and 1 Dark Sword Grass
24th July A single Clouded Yellow was at the Bill this afternoon. Immigrant and dispersive moths in the Obs garden moth-traps this morning: 13 Plutella xylostella, 8 Silver Y, 6 Nomophila noctuella and 2 Dark Sword Grass; also the first Flounced Rustic of the year and an Emperor dragonfly. 

 

 

Eulamprotes wilkella and Devonshire Wainscot - 23rd July 2003 Martin Cade

 

23rd July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 6 Silver Y, 2 Plutella xylostella, 1 Dark Sword Grass, 1 Southern Wainscot , 1 Scarce Bordered Straw, 1 Eulamprotes wilkella (the first island record away from Ferrybridge where this species breeds) and 1 Devonshire Wainscot (the ninth island record). 

 

The Wormwood - 22nd July 2003 Martin Cade

 

22nd July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 13 Plutella xylostella, 3 Nomophila noctuella, 3 Dark Sword Grass, 2 Silver Y and 1 Dark Spectacle; also the first record for the year of The Wormwood
21st July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 5 Plutella xylostella, 4 Nomophila noctuella, 2 Silver Y, 2 Dark Sword Grass, 1 Small Mottled Willow and 1 Eucosma conterminana; also the first record for the year of Oak Eggar

 

Orache Moth - 20th July 2003 Martin Cade

 

20th July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 29 Plutella xylostella, 2 Silver Y, 2 Nomophila noctuella, 1 White-line Dart, 1 Gold Spot and 1 Orache Moth; also the first record for the year of Rosy Rustic. Late news for yesterday was of a Lesser Emperor dragonfly reported at Yeolands Quarry in the afternoon - there was no sign of it there this morning.
19th July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 10 Silver Y, 9 Plutella xylostella, 3 Udea ferrugalis, 2 True Lovers Knot, 2 Nomophila noctuella, 1 Dark Sword Grass, 1 Evergestis extimalis and 1 Small Mottled Willow; also the first record for the year of Svensson's Copper Underwing.
18th July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 10 Plutella xylostella, 4 Silver Y, 2 Dark Sword Grass, 1 Udea ferrugalis, 1 True Lovers Knot, 1 Dark Spectacle and 1 Nomophila noctuella; also the first record for the year of Straw Underwing.
17th July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 14 Silver Y, 3 Plutella xylostella, 1 Dark Sword Grass and 1 Endothenia quadrimaculana.

 

Olive Crescent and Evergestis pallidata - 16th July 2003 Martin Cade

 

16th July The Obs garden moth-traps produced two more first records for the island this morning: Olive Crescent and Evergestis pallidata; Additional immigrant and dispersive moths in the traps were: 71 Plutella xylostella, 15 Silver Y, 5 Yponomeuta evonymella, 4 Nomophila noctuella, 3 Epiblema foenella, 2 Coleophora salicorniae, 2 Eucosma obumbratana, 2 Dark Sword Grass, 2 Udea ferrugalis, 1 Yponomeuta rorrella, 1 Clay Triple-lines, 1 Catoptria pinella, 1 Epiblema roborana, 1 Eudonia pallida, 1 Endothenia quadrimaculana, 1 Small Mottled Willow, 1 True Lovers Knot, 1 Ostrinia nubilalis, 1 Swallow Prominent and 1 Gold Spot; also the first records for the year of Barred Rivulet, Peach Blossom and Campion.
15th July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 52 Plutella xylostella, 12 Silver Y, 3 Dark Sword Grass, 1 Conobathra tumidana, 1 Ostrinia nubilalis, 1 Pempelia genistella, 1 Yponomeuta evonymella, 1 Evergestis extimalis and 1 Endothenia quadrimaculana; also the first records for the year of Udea olivalis, Mouse Moth and Square-spot Rustic.
14th July The first Gatekeepers of the year were on the wing near the Verne prison. Immigrant and dispersive moths in the Obs garden moth-traps this morning: 19 Plutella xylostella, 15 Silver Y, 2 Nomophila noctuella, 1 Udea ferrugalis, 1 Small Emerald and 1 Oak Nyteoline.

 

Scarce Silver-lines and Scaly Cricket - 13th July 2003 Martin Cade (top) and Andrew Raine/Martin Cade (bottom)

 

13th July Good numbers of Scaly Crickets were caught overnight in pitfall traps set above the high water line on the seaward side of Chesil Beach. The first Migrant Hawker dragonflies of the year were on the wing at the Bill, and the first Grayling of the year was at Tout Quarry. In the Obs garden moth-traps this morning the highlight was another new species for the island: a Scarce Silver-lines. Additional immigrant and dispersive moths in the traps: 6 Silver Y, 6 Plutella xylostella, 1 Nomophila noctuella and 1 Dark Sword Grass; also the first Blastobasis lignea, Hypsopygia costalis and Marbled Green of the year. .

 

Selania leplastriana - 12th July 2003 Martin Cade

 

12th July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 17 Silver Y, 13 Plutella xylostella, 6 Nomophila noctuella, 2 Udea ferrugalis, 1 Pine Hawk-moth and 1 True Lovers Knot; also the first Acleris forsskaleana and Acleris holmiana of the year. Additionally, a few Selania leplastriana were on the wing in evening sunshine around Wild Cabbage plants on the West Weares below Barleycrates Lane.
11th July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 21 Silver Y, 13 Plutella xylostella, 4 Nomophila noctuella, 1 Yponomeuta evonymella and 1 True Lovers Knot; also the first Acleris aspersana, Bordered Beauty and Dusky Sallow of the year. 
10th July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 12 Silver Y, 1 Plutella xylostella, 1 Nomophila noctuella, 1 Udea ferrugalis and 1 Sitochroa palealis
9th July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 27 Silver Y, 10 Plutella xylostella, 2 Nomophila noctuella, 1 Udea ferrugalis, 1 Yponomeuta evonymella, 1 True Lovers Knot, 1 Zeiraphera isertana, 1 Tawny-barred Angle and 1 Red Admiral butterfly; also the first Pammene aurantiana, Pleuroptya ruralis, July Highflyer and Ruby Tiger of the year. 
8th July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 9 Plutella xylostella, 9 Silver Y, 3 Nomophila noctuella, 2 Dark Sword Grass, 2 Udea ferrugalis, 2 Evergestis extimalis and 1 Bordered Straw; also the first Plain Pug and Saltern Ear of the year. 

 

Scarce Blue-tailed Damselflies - June/July 2003 Simon Woolley & Julia Casson (top) and Ken Dolbear (bottom)

 

7th July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 12 Plutella xylostella, 10 Silver Y, 6 Nomophila noctuella, 3 Dark Sword Grass, 1 Brussels Lace, 1 Dioryctria abietella, 1 Pearly Underwing and 1 Bordered Straw; also the first Shaded Broad-bar, The Fan-foot and Broad-barred White of the year. 

 

Lulworth Skipper - 6th July 2003 Simon Woolley & Julia Casson

 

6th July A Sunfish lingered off the Bill for a while in the morning. Scarce Blue-tailed Damselflies and Red-veined Darters continue to be seen at Yeolands Quarry, and the first Small Skippers of the year were on the wing at the Bill. Immigrant and dispersive moths in the Obs garden moth-traps this morning: 18 Silver Y, 15 Nomophila noctuella, 7 Plutella xylostella, 5 Brussels Lace, 5 Udea ferrugalis, 3 Small Mottled Willow, 2 Dark Sword Grass, 2 Yponomeuta evonymella, 1 Marbled White-spot, 1 Sandy Carpet, 1 White-speck, 1 Eudonia pallida, 1 Small Yellow Wave, 1 Rosy Footman, 1 Dark Spectacle, 1 Tawny-barred Angle, 1 Common White Wave and 1 Pempelia genistella; also the first Caloptilia leucapennella, Blastodacna hellerella, Aglossa pinguinalis, Dingy Footman and Uncertain of the year. 
5th July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 25 Nomophila noctuella, 22 Silver Y, 13 Plutella xylostella, 12 Dark Sword Grass, 8 Udea ferrugalis, 4 Small Mottled Willow, 1 True Lovers Knot and 1 Scarce Bordered Straw; also the first Eudonia mercurella f. portlandica and  Cochylis roseana of the year. Additionally, light-trapping overnight at Cheyne Weares produced 6 Bordered Straw, 2 Small Mottled Willows, 1 Spruce Carpet and 1 Ni Moth, as well as the first records for the year of Barred Yellow, Buff Arches and Small Purple-barred

 

Ethmia dodecea - 4th July 2003 Martin Cade

 

4th July A single Ethmia dodecea in the Obs garden moth-traps this morning was a first record for the island (taking the island lepidoptera list to at least 1133 species). Additional immigrant and dispersive moths in the traps: 19 Silver Y, 8 Plutella xylostella, 8 Nomophila noctuella, 3 Bordered Straw, 3 Small Mottled Willow, 2 Dark Sword Grass, 1 Udea ferrugalis, 1 Eudonia pallida, 1 Cosmopolitan, 1 White-speck and 1 Convolvulous Hawk-moth; also the first Least Yellow Underwing of the year.
3rd July Scarce Blue-tailed Damselflies continue to be seen at Yeolands Quarry, where there were also several Red-veined Darters today. Immigrant and dispersive moths in the Obs garden moth-traps this morning: 25 Plutella xylostella, 23 Nomophila noctuella, 18 Silver Y, 4 Udea ferrugalis, 4 Small Mottled Willow, 1 Dark Sword Grass, 1 Delicate, 1 White-speck, 1 Dark Spectacle, 1 Yponomeuta evonymella, 1 Clay Triple-lines and 1 Vestal; also the first Capperia britanniodactyla and Rosy Minor of the year.

 

Lacanobia splendens - 2nd July 2003 Martin Cade

 

2nd July Highlight in the Obs garden moth-traps this morning was a potential new moth for Britain: Lacanobia splendens (provisional identification courtesy of Martin Honey of The Natural History Museum, London, who further commented: 'In many countries where it occurs it is regarded as endangered on account of its isolated, fragmented populations. It does, however, occur almost throughout central and southern Europe. It was recorded new to Denmark in 1959 and Finland in 1996'). Additional immigrant and dispersive moths in the Obs garden traps this morning: 32 Plutella xylostella, 25 Nomophila noctuella, 16 Silver Y, 4 Small Mottled Willow, 3 Udea ferrugalis, 3 Bordered Straw, 2 Dark Spectacle, 1 Dark Sword Grass, 1 Eudonia pallida, 1 Delicate and 1 Evergestis extimalis; also the first Coronet of the year. Lulworth Skippers are now on the wing in good numbers at the Bill.
1st July Immigrant and dispersive moths in the Obs garden moth-traps this morning: 16 Nomophila noctuella, 15 Silver Y, 13 Plutella xylostella, 7 Udea ferrugalis, 5 Small Mottled Willow, 2 Dark Sword Grass, 2 Eudonia pallida, 2 Pearly Underwing, 1 Hummingbird Hawk-moth, 1 Bordered Straw, 1 Delicate, 1 Cosmopolitan, 1 White-speck and 1 Red Admiral butterfly; also the first Wormwood Pug of the year.