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Nature

Harry’s advent calendar of insects, day 22: Libelloides coccajus

I’ve left this rather late today, with family christmas stuff to do and the Strictly Come Dancing final to watch, so here’s a quick one. This is Libelloides coccajus, and it’s the most startling insect I’ve seen in recent years.

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Startling because when I saw it in Provence I just had no idea what it was. I mean, it looked as much like a moth or a dragonfly as anything… but not really. I only considered those because I was completely stumped.

And it’s not that difficult to stump me — I’m no expert — but to see something as large and spectacular as this in Europe, and be unable to narrow it down beyond ‘insect’; it was exciting and frustrating.

I now know it’s an ascalaphid or owlfly. They are related to antlions, lacewings, and mantidflies — which makes as much sense as anything.

» ‘Ascalaphe soufré (Libelloides coccajus)’ is © Le No and used under a by-nc-sa licence.

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Nature

Harry’s advent calendar of insects, day 21: Giant Peacock Moth

This is a Giant Peacock Moth, Saturnia pyri:

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It’s Europe’s largest moth, but not quite as large as the photo makes it look; that is a child’s foot. But still, it can have a 6″ wingspan, which is pretty good.

I chose that picture because I think there’s something weirdly charming about the microgenre of ‘awkward photographs of people with large insects perched on part of their body’. But here’s a better picture of the moth:

Okáň hruškový (Saturnia pyri)

This is a passage from Social Life In The Insect World by the great French entomologist and writer Jean Henri Fabre (‘butterfly’ is a translation of the French ‘papillon’ which means both butterfly and moth):

On the morning of the 6th of May a female emerged from her cocoon in my presence on my laboratory table. I cloistered her immediately, all damp with the moisture of metamorphosis, in a cover of wire gauze. I had no particular intentions regarding her; I imprisoned her from mere habit; the habit of an observer always on the alert for what may happen.

I was richly rewarded. About nine o’clock that evening, when the household was going to bed, there was a sudden hubbub in the room next to mine. Little Paul, half undressed, was rushing to and fro, running, jumping, stamping, and overturning the chairs as if possessed. I heard him call me. “Come quick!” he shrieked; “come and see these butterflies! Big as birds! The room’s full of them!”

Okáň hruškový (Saturnia pyri)

This astonishing sight recalled the prisoner of the morning to my mind. “Put on your togs, kiddy!” I told my son; “put down your cage, and come with me. We shall see something worth seeing.”

We had to go downstairs to reach my study, which occupies the right wing of the house. In the kitchen we met the servant; she too was bewildered by the state of affairs. She was pursuing the huge butterflies with her apron, having taken them at first for bats.

It seemed as though the Great Peacock had taken possession of my whole house, more or less. What would it be upstairs, where the prisoner was, the cause of this invasion? Happily one of the two study windows had been left ajar; the road was open.

Okáň hruškový (Saturnia pyri)

Candle in hand, we entered the room. What we saw is unforgettable. With a soft flic-flac the great night-moths were flying round the wire-gauze cover, alighting, taking flight, returning, mounting to the ceiling, re-descending. They rushed at the candle and extinguished it with a flap of the wing; they fluttered on our shoulders, clung to our clothing, grazed our faces. My study had become a cave of a necromancer, the darkness alive with creatures of the night! Little Paul, to reassure himself, held my hand much tighter than usual.

How many were there? About twenty. To these add those which had strayed into the kitchen, the nursery, and other rooms in the house, and the total must have been nearly forty. It was a memorable sight—the Night of the Great Peacock! Come from all points of the compass, warned I know not how, here were forty lovers eager to do homage to the maiden princess that morning born in the sacred precincts of my study.

I actually remembered this story being about the Giant Peacock Moth’s slightly smaller relative, the Emperor Moth, probably because the Emperor Moth is found in Britain and the GPM isn’t (I’ve personally never seen either of them). Which is if anything even more beautifully marked.

Social Life in the Insect World is available on Project Gutenberg, long with several other books by Fabre. They are genuinely worth checking out.*

* despite the occasionally clunky translation; can ‘Put on your togs, kiddy!’ really have been good idiomatic English even in 1911?

» ‘Saturnia Pyri tximeleta erraldoia’ is © Marije, Peru eta Lili and used under a CC by-sa licence. The other three (1, 2, 3) are © Photo Nature and used under a by-nc-sa licence.

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Nature

Harry’s advent calendar of insects, day 20: honeybee

“we have rather chosen to fill our hives with honey and wax; thus furnishing mankind with the two noblest of things, which are sweetness and light.”

» ‘Honeybee Nest Removal – 07’ is © Max Westby and used under a CC by-nc-sa licence.

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Nature

Harry’s advent calendar of insects, day 19: Death-watch Beetle

Imagine, it is the early nineteenth century, on a still summer night in a creaky timber-framed cottage in the English countryside; and you are awake, sitting up with a sick child and a single flickering tallow candle for light.

And quiet but persistent, from somewhere in the darkness, you hear a noise.

It’s not surprising it might seem like a sinister omen.

Especially not surprising when you learn about some of other omens of death just in Oxfordshire:

local omens include crocks rattling, a spider making a ticking noise, two black crows on a line, a knock on the door with no-one there, crickets rapidly leaving a house, a dog howling, the clock striking 12 during the second sermon or hymn (Adderbury), fire burning with a bright hole in the middle (Stoke Row), a coffin shape formed in ironed linen or a loaf of bread, and a candle guttering and the grease spiralling to form a winding sheet.

It was taboo to wash clothes on Good Friday or New Year’s Day, to wash blankets in May, or to seat 13 at a table. People dreaded a picture falling from a wall for no apparent reason, scissors falling point downwards, or a glass ringing (indicating the death of a sailor). Dressmakers avoided accidentally stitching a hair into their work. It was bad luck if the eyes of a corpse remained open, or the corpse stayed in the house over a Sunday, or the funeral had to be postponed. People encountering a funeral procession would walk a little way with it to avert bad luck.

Plants associated with death include flowers with drooping heads such as snowdrops, dead flowers found outside and picked up, red and white flowers in a vase (especially in hospitals where they were described as ‘blood and bandages’), flowers blooming out of season, fruit trees blossoming twice in one year, or out of season, lilac brought in, parsley transplanted or given away, and red hot pokers blooming twice.

Many death omens were associated with birds: birds coming into the house, tapping on the window, flying into a closed window or flying down a chimney, cocks crowing at midnight, crows or owls perching near the house, and a robin perching on a chair.

They must have lived their lives surrounded by a constant swirl of portents, good or bad. Presumably most people, most of the time, shrugged it all off; but you can imagine if you were stressed, or depressed, or worried about someone’s health, you would find yourself seeing threatening signs everywhere.

That’s what the adult beetle looks like. 7mm long, mottled brown, slightly hairy. They make the ticking sound to attract mates by banging their heads against the timber.

And it might be an omen; not of death, but of some expensive renovation work. Because they are woodborers and if the adults are banging their heads against your beams, it probably means that their larvae are munching away, hollowing them out.

» The recording and the photo are both © Gilles San Martin and used under a CC by-sa licence.

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Nature

Harry’s advent calendar of insects, day 18: Mountain Katydid

This is an Australian species called the Mountain Katydid, Acripeza reticulata:

Male on the left, female on the right.

Obviously, they’re well camouflaged (the female is easily mistaken for a kangaroo turd, apparently); and they have funky-looking stripy legs. But that’s not why I picked them. No; it’s because when you get too close to them, they do this:

Boo!

Bright colours in insects are often a warning that they taste bad, but presumably it also distracts and disconcerts predators.

It reminds me of those fabulous grasshoppers you find in the Mediterranean, which are almost completely invisible until you nearly step on them and they fly off with a flash of blue or red wings.

» ‘Acripeza reticulata female and male’ is © Mark Santos and used under a CC by-nc licence. The photo of a katydid with its wings up is from the marvellous Brisbane Insects and Spiders Home Page and is © Peter Chew.

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Nature

Harry’s advent calendar of insects, day 17: magnetic termites

‘Magnetic termites’ sounds like a very disappointing toy to find at the bottom of your Christmas stocking. But no, they are a real species, Amitermes meridionalis. I don’t have a picture of the insect itself, but I assume it’s just your standard termite: a pallid little wriggly thing. Or thousands and thousands of pallid little wriggly things.

But anyway, with termites it’s all about the mounds. Which can be spectacular: check out this termite mound in Botswana (with giraffe for scale).

These are the mounds made by magnetic termites, in the Litchfield National Park in Australia:

They’re called ‘magnetic’ because the mounds are wide and flat, and they all align themselves north-south. Giving a distinct graveyard look to a group of them together.

I love how different they look depending on the season and lighting.

They aren’t actually magnetic, because they aren’t aligned along the earth’s magnetic field; instead they’re aligned according to where the sun rises and sets. Google doesn’t provide a consensus answer for why they build their mounds this way; it is something to do with minimising exposure to the heat of the sun, and therefore controlling the temperature, but there are plenty of termites living in very hot conditions, and most build round mounds.

The fact that the magnetic termites live in an area which is sometimes flooded is probably important, but again it’s not entirely clear why that makes a difference. Whatever the reason, the result is spectacular.

The closest relative of the termites are cockroaches. Termites are cockroaches who have built elaborate societies by working together for a higher cause. Admittedly most of them are anaemic stunted slaves, working themselves to death to further the interests of a feudal autocracy… but it’s still a remarkable example of the power of cooperation.

Enjoying insects is mainly about noticing the little things, having an eye for detail; not just appreciating the sweep of the landscape, but also the square meter of land directly in front of your feet. Occasionally, though, insects can construct a landscape on a massive scale.

» ‘Magnetic termite mounds’ is © Peter Nijenhuis. ‘Magnetic Termite Mounds – Litchfield National Park – Northern Territory – Australia’ is © Flight9774; both are used under CC by-nc-nd licences. ‘DSC07400’ is © Blake Chen and used under a by-nc-sa licence. ‘Magnetic Termite Mounds’ is © factoids and used under a by-nc licence.