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A day in the life …

… of an entomological consultant. Yesterday was a pretty typical day, surveying a site which is proposed for development. I’m not able to reveal the location but it is a site with a mix of unmanaged grassland and secondary woodland. I spent a little over 6 hours in the field, concentrating my efforts on sweeping and beating. It almost goes without saying that I wore full waterproofs throughout though there was sunshine between the showers.

I worked yesterday evening and from early this morning to finish all the identification work and I’ve listed 102 species for the site. It is always my aim to record over 100 species from a day’s survey but I only just scraped over the line yesterday. I would expect more and I’m tending to agree with others who are saying that this is a poor spring for insects.

The list includes one Red Data Book species and five Nationally Scarce species, though, as is so often the case, some of these statuses are in need of revision for species which have become commoner and more widespread. But they are still useful species for assessing the conservation importance of the site.

I was really pleased to find the RDB hoverfly Rhingia rostrata: only the second one I’ve seen after Dave Gibbs showed me one last year. And there were two species which I got the camera out for. They’re just superb beasts and I don’t think I will ever get tired of seeing them!

Centrotus cornutus, a treehopper

Attelabus nitens, the Oak Leaf-roller

Coproporus immigrans is a recent arrival in Britain, specialising in woodchip piles, and I’d only seen it on two previous occasions before yesterday. Here it was in quite an old woodchip pile with thistles growing out of it, though it favours fresh woodchip.

Coproporus immigrans, a distinctive tachyporine rove-beetle

It’s not my aim on survey work to look for species I’ve never seen before: it’s about playing to my strengths and giving the client best value for money, rather than trying to get ticks. But I usually manage a few new species and yesterday I cut open a currant gall on oak for the first time to see the larva of Neuroterus quercusbaccarum within. Also, the common mirid bug Dicyphus globulifer was a new one for me, from a group which I’m tackling more seriously since I acquired Suomen Luteet.

Species (scientific name) Species (English name) Conservation Status
Oniscus asellus Common Shiny Woodlouse None
Porcellio scaber Common Rough Woodlouse None
Nuctenea umbratica a spider None
Pisaura mirabilis a spider None
Glomeris marginata Pill Millipede None
Cylindroiulus punctatus Blunt-tailed Millipede None
Forficula auricularia Common Earwig None
Leptophyes punctatissima Speckled Bush-cricket None
Centrotus cornutus a treehopper None
Dicyphus globulifer a mirid bug None
Deraeocoris lutescens a mirid bug None
Liocoris tripustulatus a mirid bug None
Miris striatus a mirid bug None
Stenodema laevigata a mirid bug None
Harpocera thoracica a mirid bug None
Anthocoris confusus a flower bug None
Anthocoris nemorum a flower bug None
Kleidocerys resedae a ground-bug None
Pentatoma rufipes Red-legged Shieldbug None
Paradromius linearis a ground beetle None
Ptinella aptera a featherwing beetle None
Euplectus karstenii a pselaphine rove-beetle None
Tachyporus hypnorum a rove-beetle None
Coproporus immigrans a rove-beetle None
Stenus flavipes a rove-beetle None
Trixagus dermestoides a beetle None
Athous haemorrhoidalis a click-beetle None
Agriotes pallidulus a click-beetle None
Cantharis decipiens a soldier-beetle None
Rhagonycha lignosa a soldier-beetle None
Epuraea pallescens a beetle None
Meligethes carinulatus a pollen beetle None
Meligethes nigrescens a pollen beetle None
Byturus ochraceus a beetle None
Cerylon histeroides a beetle None
Rhyzobius litura a ladybird None
Exochomus quadripustulatus Pine Ladybird None
Propylea quattuordecimpunctata 14-spot Ladybird None
Coccinella septempunctata 7-spot Ladybird None
Cortinicara gibbosa a beetle None
Mycetophagus piceus a beetle Nationally Scarce (Nb)
Mordellochroa abdominalis a tumbling flower-beetle None
Nalassus laevioctostriatus a darkling beetle None
Ischnomera cyanea a beetle Nationally Scarce (Nb)
Oedemera lurida a beetle None
Pyrochroa coccinea Black-headed Cardinal Beetle Nationally Scarce (Nb)
Salpingus planirostris a beetle None
Anaspis frontalis a beetle None
Anaspis fasciata a beetle None
Anaspis maculata a beetle None
Bruchus rufimanus a seed-beetle None
Lochmaea crataegi Hawthorn Leaf-beetle None
Longitarsus luridus a flea-beetle None
Crepidodera aurea a flea-beetle None
Lasiorhynchites olivaceus a weevil Nationally Scarce (Na)
Tatianaerhynchites aequatus a weevil None
Attelabus nitens Oak Leaf-roller None
Aspidapion aeneum a weevil None
Protapion fulvipes White Clover Seed Weevil None
Protapion trifolii a weevil None
Perapion curtirostre a weevil None
Perapion hydrolapathi a weevil None
Apion frumentarium a weevil None
Ischnopterapion loti a weevil None
Phyllobius roboretanus Small Green Nettle Weevil None
Phyllobius pyri Common Leaf Weevil None
Sitona lepidus a weevil None
Magdalis armigera a weevil None
Rhinoncus pericarpius a weevil None
Ceutorhynchus typhae a weevil None
Ceutorhynchus obstrictus a weevil None
Trichosirocalus troglodytes a weevil None
Nedyus quadrimaculatus Small Nettle Weevil None
Anthonomus pedicularius a weevil None
Anthonomus rubi a weevil None
Curculio glandium Acorn Weevil None
Archarius pyrrhoceras a weevil None
Gymnetron pascuorum a weevil None
Neuroterus quercusbaccarum f. sexual Currant gall causer None
Biorhiza pallida f. sexual Oak-apple causer None
Lasius brunneus Brown Tree Ant Nationally Scarce (Na)
Lasius niger sens. str. an ant None
Myrmica rubra an ant None
Myrmica scabrinodis an ant None
Bombus hortorum Small Garden Bumblebee None
Bombus pascuorum Common Carder-bee None
Panorpa germanica a scorpion-fly None
Rhagio scolopaceus Downlooker Snipefly None
Beris chalybata Murky-legged Black Legionnaire None
Microchrysa polita Black-horned Gem None
Empis tessellata a dance fly None
Melanostoma mellinum a hoverfly None
Sphaerophoria scripta a hoverfly None
Rhingia campestris a hoverfly None
Rhingia rostrata a hoverfly RDB3
Neoascia podagrica a hoverfly None
Syritta pipiens a hoverfly None
Tephritis neesii a picture-winged fly None
Anthophila fabriciana Nettle-tap None
Pieris rapae Small White LC
Pararge aegeria Speckled Wood LC
Monacha cantiana Kentish Snail None

Clicks, ricks, bumbles, damsels, beauties and lovers

I returned home on Sunday night from a four-day entomological expedition to The Mullet, County Mayo. Thanks to Dave Allen for including me in the team for this trip and thanks to The Heritage Council (Ireland) for financial assistance. After a 5-hour drive from Belfast, we arrived on Thursday in a land of machair grassland, lakes and hay meadows. Relatively few entomologists have worked this part of the world but it is already known as the only area in Ireland for the click beetle Selatosomus melancholicus, and a stronghold for the sand wasp Ammophila sabulosa, otherwise known in Ireland only from The Raven, Co. Wexford. What else awaits discovery out there?

I have been to The Mullet once before, on a similar expedition in late June 2007. On that occasion, resident naturalist Dave Suddaby guided us to a couple of the best spots for the click beetle, only to find the dunes littered with their corpses. This is a beetle which emerges in considerable numbers but doesn’t live for very long. I was, quite frankly, gutted. Fingers were crossed that the earlier dates of this year’s trip (7 – 10 June) and the late spring would give us a better chance of seeing them alive.

The first one I found at Annagh dunes on 7th in pouring rain … was dead. But then Sudds found a live one, and there was rejoicing.

One of the survivors: a living Selatosomus melancholicus.

We eventually tallied 21 dead click beetles to 4 live ones. This beetle does not occur in Britain, and in France it is restricted to the Alps and Pyrenees. Whether the population on The Mullet is native, or an ancient introduction is unclear – but either explanation is pretty mind-boggling.

Despite the rain, sand wasps were still out and about, hunting caterpillars.

Sand wasp Ammophila sabulosa is fairly common in England but a Mullet speciality in Ireland.

Belted Beauty Lycia zonaria caterpillar. These are abundant in the dunes and provide the main prey for Ammophila sabulosa.

We endured some terrible weather for the first couple of days though it did blow in a summer plumaged Long-tailed Skua. The wind and rain eased on Friday evening and Saturday was a beautiful sunny day. Sudds found a Great Yellow Bumblebee Bombus distinguendus on Red Clover in the garden of our B&B (Léim Siar, highly recommended), which was to be the first of many. Though I never succeeded in photographing any of them!

We worked some meadows near Termoncarragh Lough, with more Bombus distinguendus, and a fly-past from a pair of Chough. A Marsh Pug here was probably the best macro-moth discovery of the trip. Roy Anderson decided to try sieving one of the hay-ricks which turned out to be seething with Atomaria, ptiliids and all manner of other beetles. Bells started ringing in my head about the hay-rick beetle fauna – there are several species which were seemingly common in the days before combine-harvesters and silage but are now extinct or vanishingly rare. Maybe they could survive out in west Mayo, where Corncrakes and Great Yellow Bumblebees also cling on? Well I filled my pooter with a lot of LBJs but it will need several winter days at the microscope before I know what I’ve caught!

Hay ricks full of beetles

We ended the day listening to Corncrakes after dusk in beautifully still conditions.

Sunday’s fieldwork plans were mucked up by a slow puncture on Dave’s truck but when we did collect the moth traps, there were still very few moths. I was pleased to see an adult Pod Lover Hadena perplexa capsophila and Red-shanked Carder Bee Bombus ruderarius before we set off back.

Pod Lover

A terrible photo of Bombus ruderarius but it does at least show the red hairs on the pollen basket.

Just after breakfast I grabbed some photos of a bumblebee in the garden of our B&B. At the time I thought it might be one of the cuckoos (formerly in genus Psithyrus) as it looked quite shiny. On examining the photos back home I thought it was probably a Shrill Carder Bee Bombus sylvarum, which would be a good find. However, Mike Edwards reckons it is just a worn individual of one of the brown carder bees (pascuorum or muscorum) and that the apparent black hair-band across the thorax is just a bald patch.

Bombus sylvarum lookalike

Bombus sylvarum lookalike

Last stop before I was dropped at the airport was Cullentra Lough, a beautiful little lough just off the main A4 road east of Fivemiletown at H 476 474. It’s a good spot for Irish Damselfly Coenagrion lunulatum (and the only place I’ve ever seen it). We found just the one on this visit after checking through loads of Common Blues Enallagma, Variables Coenagrion pulchellum and Azures C. puella.

Irish Damselfly Coenagrion lunulatum