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Travel Notes As we travel widely during the summer looking for insects to photograph, Roger and I have decided to put a record of our more interesting finds on this website. So please scroll down to check out any changes or go to 'What's new' on the header. On a trip north to Aberdeen, my partner Carolyn and I took a detour through Glenshee south of Braemar. We arrived at dusk and immediately set up the mercury vapour trap. The road through Glenshee is one of the higher roads in Scotland and with a bit of a climb the trap was set up at a height of about 670m. It became misty during the evening, but cleared later. The most common species attracted to the light was Antler followed by Dark Arches. About two hundred Antler visited the trap and about eighty Dark Arches. This meant that the other moths visiting were constantly disturbed as these two species both take a long time to settle after their arrival. The other species included, Neglected Rustic, Red Carpet, Suspected, Udea uliginosalis and Northern Arches Apamea zeta. The latter moth has two subspecies in Britain, the mainland form, which is Northern Arches Apamea zeta ssp. assimilis and the Exile Apamea zeta ssp. marmorata, which is slightly larger and found in Britain only on the Shetland Islands. The Northern Arches flies in July and August on moorland, especially high moorland. The larvae are thought to feed on moorland grasses. The specimen in the picture below had a forewing length of about 19mm. Several came into the trap and all except one dark specimen stood out from the other large noctuids because of the heavy body, broad wing and pinkish markings.
Northern Arches Apamea zeta assimilis - Glenshee, Aberdeenshire Ayres NNR, Isle of Man. There are a number of insect species that are widespread, but rarely recorded. This is because although they are common they live in specialist habitats. The bee-fly Villa modesta is an example of this, as although present on most major coastal sand dunes in England, Jersey, south Wales, eastern Scotland and south-east Ireland, it is rarely seen inland. Although Roger and I have seen it at several other dunes, this is the first time I have managed to get a decent picture, as the fly basks on the sand, but quickly disappears when approached with a camera. There is a similar, but rarer fly known as Villa venusta, that can be distinguished by the presence of a broader band of shading on the leading edge of the forewing and its preference for a heathland habitat. The larvae of bee-flies are parasites. It is not known which species are the hosts of the Villa spp., as the few reports are contradictory. It is thought that the british host species may be moths. The specimen in the picture is a female (eyes slightly further apart than the male and abdomen slightly more banded). It was approximately 12 or 13mm long.
Villa modesta Ayres Dunes, Isle of Man To view other bee-flies on this site visit here, and look at the entry for Surrey heaths here. While searching for moths on the mountain tops near Glenshee in the east Highlands, Roger and I came across a strange fly. It was resting on a stone beside a small peaty pool. Before I could open my net the fly flew off. Roger went around the other side of the pool and found either the same fly or another of the same species and he managed to net it. The fly was about 16mm total length and very broad and bumblebee like. In fact it was the best mimic of a bumblebee we have seen as it had extremely long and dense hair, even on the face. It was at a height of about 950m (almost 3120 feet). I would like to thank Ian Mclean for identifying the fly, which is pictured below with his reply to my email asking for help in identification. We saw herds of up to two hundred Red Deer in the area where we found the fly. "This is a member of the family Oestridae and is the species Cephenemyia auribarbis (Meigen, 1824). This is a Deer Botfly whose larvae live in the nostrils and pharyngeal cavity of deer. It is widespread in the Highlands of Scotland, though not so frequently seen as an adult."
Deer Botfly Cephenemyia auribarbis - face
Deer Botfly Cephenemyia auribarbis - side view
Deer Botfly Cephenemyia auribarbis - dorsal view While on yet another visit to the Highlands of Scotland, Roger and I visited a woodland on the lower slopes of a mountain near Braemar. As is usual in Scotland there were plenty of day-flying moths and we disturbed a large number from birch trunks and the lichen covered rocks. The main species seen were Grey Mountain Carpet, Common Marbled Carpet, Twin-spot Carpet and Scoparia ambigualis, but there were also some more unusual species including Udea uliginosalis, Heath Rivulet and Chestnut-coloured Carpet. The latter moth should not have been a surprise, as we were surrounded by its larval food plant, which is Juniper. The adult moth is not large at around 13mm forewing length and as its name suggests is chestnut in colour and only likely to be mistaken for the larger Grey Pine Carpet, or Spruce and Juniper Carpets which fly later in the season. Chestnut-coloured Carpet Thera cognata is a Notable (Nb) species and widespread where Juniper grows in Scotland, but only local in England and Wales.
Chestnut-coloured Carpet Thera cognata - Braemar On leaving Skye we travelled back through Glen Moriston where we decided to set up the moth trap. Apart from the thousands of biting midges (it is not an exaggeration that the worst place for midges is on Skye and the near mainland) we did have some interesting moths, including Scotch Annulet and a couple of Great Brocade Eurois occulta. The moth shown below is of the dark form of Great Brocade that is native to the Highlands and central Scotland. It flies during July and early August. There is also a paler immigrant form that has been recorded in low numbers across most of Britain with a few records from northern Ireland. It appears later, usually from late August through September. The larvae feed mainly on Bog Myrtle, but also herbaceous plants, sallows and birch. It is a large moth. The one in the picture had a forewing length of 25mm.
Great Brocade Eurois occulta - Glen Moriston 12th July 2010 afternoon It is very noticeable that the further north you travel in Britain, the more moths you can find during the day. Why this is the case I do not know, but it could be due to the short summer nights which may not give enough time for the moths to feed and mate etc. Many species such as the Common Carpet that would be classed as 'easily disturbed' during the day in southern England, fly freely across the moors of Scotland, and sometimes in large numbers. We had heard that this was the case with the Magpie Moth Abraxas grossulariata, but while in Skye, Roger and I were amazed at just how many we saw flying at once. While walking the hills to the south-west of Portree we came across an area of heather where we estimated that there were a couple of thousand moths, either flying over, or resting on top of the heather. Although common, the numbers we saw made us take a fresh look at the moth and realise how attractive it is. The larvae feed on a wide variety of shrubs including Hawthorn, Blackthorn, Currant, Gooseberry and Privet. A favourite garden food plant is the Evergreen Spindle Euonymous japonica. This used to be popular as a hedging plant. On the Scottish moors the food plant is Heather. We found a clue to this, as amongst the heather we found a number of empty pupal cases. These are distinctive, as they are ringed with yellow.
Magpie Moth - Portree, Skye.
Empty Magpie pupa case - Portree, Skye Having recently searched for (and found) the Hornet Clearwing in Gloucester, we decided to search for the Lunar Hornet Clearwing while at Studland in Dorset. We had already looked at known sites nearer Bristol where others had already found them, but with no luck. Unfortunately after getting up early and searching probably a few thousand Grey and Crack Willows we decided that either we were incredibly unlucky, or that the recent heat wave had meant an early emergence this season. Despite our disappointment we made the best of it and found other moth species including Argyresthia retinella, several Brown China-mark and a beautiful specimen of Acleris hastiana. The latter tortricoid is one of the most variable of British moths. They can have a diagonal band running from the costa, a lengthways stripe down the wing, or as in this case a stripe and a diagonal band from the costa. The larvae feed on Grey Willow Salix cinerea and other Salix species. They are most common in southern and eastern England, especially near the coast, but they are widespread and there are a few records even in the north of Scotland.
Acleris hastiana Studland When travelling around Britain it is surprising how often that Roger and I find a species that is new to us, yet apparently common in the part of the country we are in. This is usually because the habitat is unusual. In this case the habitat was the Suffolk and Norfolk Brecks which often have very thin soils of sand and dust. In the remaining unfarmed and wild areas, there is an abundance of wild flowers, because the poor soils mean the plants do not have to compete with the coarse grass species normally found on the heavier clay soils. These areas also support an abundance of insect species including moths such as Oblique Striped, Forester, Small Elephant Hawk-moth, Reddish Light Arches and Four-dotted Footman, all of which we saw on our trip. An unusual grass bug that we found was Chorosoma shillingi, which looks more like a stick insect than a bug. It is found mainly on the thinner soils of south east England, and the coasts of south Wales, north Wales and north-west England. The one we found was about 16mm long and difficult to see when sitting lengthways on a dry grass stem.
Chorosoma shillingi Suffolk Brecks A visit to woodland north of Southampton produced several interesting sightings. Included amongst these were White Admiral, Silver-washed Fritillary, Dusky Cockroach, the red and black click beetle Ampedus pomorum and a many specimens of the leaf beetle Gonioctena viminalis. Although Gonioctena viminalis usually looks like a 6mm long red ladybird, this species is variable in colour and pattern. The background colour varies from red to yellow, but the spots may also vary to form streaks, or even cover the background so that the beetle is black. Both the adult and larvae feed on willows, but have also been recorded from other deciduous trees including poplars, alder and apple.
Gonioctena viminalis - woodland near Southampton. While travelling across Aberdeenshire on the A944 towards Alford, my partner Carolyn and I came across what looked like dozens of trees and shrubs sprayed with artificial snow. On investigation we found it to be a very large infestation of Bird Cherry Ermine Yponomeuta evonymella. The main trees to be cloaked in silk were Alders Alnus glutinosa, but a wild plum Prunus sp. was also being eaten. The silk totally covered the branches, twigs and trunks and most of the trees had no remaining leaves, despite thousands of caterpillars still being present. The surrounding ground flora was also covered in silk, including Stinging Nettles, False Oat-grass and Nipple-wort, although I could not be sure that these were actually being eaten.
Snow in summer - shrubs clothed in silk
River Don from the bridge at Kirkton of Forbes - larger trees were also covered
A cluster of larvae, probably consisting of thousands
A couple of the culprits on grasses A visit to Orlestone Forest in Kent ended in a session of moth trapping. Unfortunately the evening was not very warm despite the hot day preceding it, so we only caught about 30 species of moths. Amongst these were several Peacock Moth Macaria notata. This is a species that is frequent in the south-east of England, but scarce in our home area around Bristol. The Sharp-angled Peacock Macaria alternata is frequent in the right habitat around Bristol and as they look similar are often confused. There are several features that can separate them, but most of these are variable. Only the width of the bands through the centre of the forewing appear to be consistent.
Peacock Moth Macaria notata
Sharp-angled Peacock Macaria alternata As already stated most of the features in the table are variable. You may find Peacock Moths with dotted lines around the wing or less distinct 'paw prints'. You may also come across Sharp-angled Peacocks with an almost rectangular blotch on the costa or a large, clear 'paw print'. Although we did not trap many moths that evening, we were rewarded with an evening of Nightingale song, with at least a dozen males encountered while walking around the woods. We also heard the continuous "churr" of a Nightjar not far from the trap and saw a Woodcock 'roding' at dusk.
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