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Beetle blog

2 Posts tagged with the the_coleopterist tag
2

A fishy (work) experience

Posted by Blaps May 31, 2013

Hello Beetlers,

 

The end of  another busy week and the comings and goings of the Coleoptera section. This week we hear from Jordan Rainey, who was lucky enough to spend a week with us on work experience from school. Here's Jordan enjoying a tour of the collections:

 

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These Dynastine beetles have such large horns that they have to live in a deepened drawer!

 

This week I have been lucky enough to do my work experience placement at the Natural History Museum, in the Coleoptera (beetle) section! I have been performing a variety of tasks overseen by one of the coleoptera curators, including preparatory work (mounting beetles on pins or on cards) and attaching accession labels to specimens so they can be put into the main collection or sent out to a specialist of that family/genus. I have also been sorting beetles into continents, and the recently collected material from Borneo, in alcohol, into families.

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Pinning beetles into position ready for labelling and identifying

 

 

I was the very lucky person that got to sort the carrion trap material that Beulah talked about in a previous blog update. It smelt awful, of the rotting fish guts that were used as bait to attract to beetles! I was sorting the scarabs, non-scarabs and the Hydrophilidae into separate pots of alcohol. The Hydrophilids went into molecular strength alcohol so that the DNA could be preserved.

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Jordan puts on a brave face - those beetles may look clean but they sure are smelly!

 

I was also sorting the Passalidae (Bess beetles) into countries and then continents. Most of them were unidentified and the localities were all mixed up, so I had to look at each individual locality label on every specimen and determine where it was collected. Some of the Passalids dated back to the 1800’s and a few may have been from Alfred Russell Wallace’s collection! I ended up with nine drawers full of hundreds of beetles all sorted to continents.

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The hundreds of unidentified Passalids...

 

I would like to say a big thank you to the entire Coleoptera section, especially Max Barclay, Michael Geiser and Beulah Garner for making this an amazing and unforgettable week!

Thanks Jordan!

 

 

Some interesting results came from this exercise, in particular the repatriation of some specimens with their original data. When curating a collection with 250 years of history behind it, it is no surprise that some detective work must be employed on occasion. Take the specimen below, one of the Passalids that Jordan has been sorting. He came across it and noticed that there was very little data and no discernible 'BM' number (the number that all specimens must have once they are accessioned into the Museum collection). What he found was the small brown disk and nothing else. From this we assumed that '39' may well be the year the specimen entered the Museum and 432 be the accession number (the consecutive number assigned to an individual specimen or any number of specimens in a discreet collection in any given year).

 

Before the advent of computers of course all records were hand written, and our accession registers go back to the beginnings of the Museum around 1881! They are big leather-bound heavy tomes with entries written by quill and ink and are a portal into the history of the Museum!  One thing leads to another and we were soon delving into the history of a certain Mr. J.G. Children which can be read below. We can see this beetle was collected a good few years before there was even a Museum in which to deposit it!

 

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Though George Children was what one might say, unlucky in love, he certainly enjoyed an illustrous career in the natural sciences; here is his obituary from The Coleopterist

 

CHILDREN, John George (18 May (July?) 1777 - 1 January 1852)

 

The only son of George Children, a banker and wealthy landed property owner.Educated at Tonbridge Grammar School, Eton and Queen's College, Cambridge. He intended to join the church, but after marrying at the age of 21, Anna Holroyd who died shortly after, he abandoned this career, and travelled to Portugal and then to Canada and the United States of America. He returned to become a Captain in the West Kent Militia, but gave this up in 1805 as a result of ill health.Having studied mechanics, mineralogy and electricity at Cambridge, he then took up scientific pursuits becoming FRS in 1807. In 1808-09 he married for a second time but lost his wife a few months later. It was at about this time that he made a second visit to Spain.

 

In 1816, two year's before his father's death, the family lost all their properties as a result of the failure of the Tonbridge Bank. Through the kindness of Lord Camden he received an appointment as Assistant Librarian at the British Museum, first in the Department of Antiquities and subsequently in 1823, as a result of the intervention of Sir Humphry Davy, in Natural History. When the Zoological Department was created in 1837 he was appointed the first Keeper, a post which he held until 1839-40, when, as a result of failing health and the death of his third wife, he was obliged to retire.

 

Although not primarily an entomologist, Children did collect insects and was one of the founder members and first President of the Entomlogical Society. The meeting at which it was decided to found the Society took place in his house, and Children contributed the Introduction to the Society's first volume of Transactions (see Neave & Griffin (1933), for an account of Children and his involvement with the Society).

 

Children's collection of insects certainly included beetles and appears to have been large. His obituary in the Proc.LSL, 1852, p.137, described the collection as 'one of the most extensive in England' and noted that he had purchased the collection of Count Bilberg. He certainly gave specimens to the Entomological Society and, in 1839, to the British Museum. When the collection was sold by Stevens between 30 March and 4 April 1840 it amounted to 950 lots, many of which were bought by the British Museum. (These are listed in the NHM Entomology Department's Register. Entomology, 2 , 12 October 1839-2 April 1840 which records many thousands of specimens including 4,490 Coleoptera. Catalogues of this sale, and of his library at Sothebys between 6 and 8 March 1840, are preserved in the NHM. The insects have been amalgamated into the general collections. There are also specimens collected by Children in the Bracy Clarke collection at the NHM found by Dr Easton in an antique shop.

 

Davis & Brewer (1986) note that a collection of worldwide insects is in the Hancock Museum donated in 1830 by 'George Children' which is presumably this Children.

 

Letters to Thomas Hope, 1834, 1837, are in the HDO (Smith (1986) p.71)

 

Jonathan Cooter tells me that Sandra Children, who married the last survivor of J.G. Children's line, has exhibited at Hereford Museum.

 

FLS from 1807. Secretary of the RSL 1820-27 and 1830-37.

 

Gilbert (1977) p.67, lists further references in E. Miller, That Noble Cabinet, 1973, pp. 227-231, and in A.E. Gunther, A Century of Zoology at the British Museum 1815-1915, 1975, pp.56-62. (MD 3/02)

 

Lydia Oliva, a photographic historian from Barcelona, informs me that Children's only daughter, Anna Atkins, (on whom she has been working) published a book of photographs in 1843 (i.e. before Fox Talbot’s Pencil of Nature) and that she was introduced to photography by her father. Children went to live with his daughter in Halstead Place, London, after he retired. (MD 10/03)

0

Hello beetlers,

 

Now that spring has passed and summer is truly upon us, the field season begins. This is when entomologists get very excited about the prospect of going out in to the countryside (well, just ‘out’ really) with their sweep nets and collecting gear in pursuit of insects! Here in the coleoptera section, we are no exception, and when Max suggested a fieldwork day to Bookham Common, we literally jumped at the chance!

Here we are, literally jumping!

 

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From left to right Alex Sadek, Max Barclay, Malcolm Kerley, Libby Livermore, Beulah Garner, Laurence Livermore. Image courtesy of Libby livermore.

 

So what does field work mean to us? Well, we don’t just go out and collect insects - we go out looking for insects. We may have an idea of what we might expect to find, especially at any given time of the year, habitat or host plant. And when we find them, we record them. This information can then be fed in to local as well as national databases which record distribution of species across the UK. This is vital information to inform those that are involved in habitat and species protection / conservation, as well as climatologists (insects are very good indicators of climate change) and politicians!
Here is the link to the National Biodiversity Network http://www.nbn.org.uk/

 

Thereby much of what we find, we record and set free. However, should we be looking for a specific species, especially if it is not commonly found in the habitat in which we are collecting, we will retain the specimen for confirmation of identification and to provide what we call a voucher specimen. A ‘voucher’ provides tangible proof that the species exists and was found in a certain location. This voucher is then deposited in the Museum collection to act as a permanent record for the future.

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Here is the striking wasp mimic Clytus arietis (Cerambycidae), which we did set free! Image courtesy of David Oram.

 

So off we set to Bookham Common. Why Bookham Common, well it is a very important area for wildlife and has species records dating back over fifty years meaning it is one of the best and most comprehensively recorded sights in Britain. The various habitats include wet grassland, low lying meadows, scrub, ponds and (ancient) woodland. So here, not only can the past inform the future by for example, the analysis of species distribution trends or species ecology, such as time of insect emergence correlated with weather, but we can continue to build on this data by regular recording of what wildlife is present.
The commons are managed by the National Trust and principally recorded by members of the London Natural History Society; follow the link to find out more about the LNHS.
http://www.lnhs.org.uk/

 

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Here is Roger Booth demonstrating his 'pootering' technique to some fascinated passers-by! For those of you that don't know, he is holding a 'beating tray'. This is placed underneath a selected tree, the tree is beaten with a big stick, and hopefully some interesting insects fall out!

 

 

The coleoptera section has got some shiny new collecting equipment that we couldn’t wait to try out - seriously!
These new traps are called Lindgren funnel traps and are a series of black funnels connected together with a collecting trap at the bottom and a bait trap in the centre.

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Lingren funnel trap in the tree canopy. Image courtesy of David Oram.  Here is Malcolm Kerley (right) demonstrating the addictive properties of the bait trap!

 

The idea is that insects are attracted to the pheromone bait and fly into the funnels – the funnels are so shaped that the insects cannot fly out, but rather end up in the bottom of the trap which contains a collecting fluid such as ethanol with a drop of washing-up liquid to break the surface tension. These traps are commonly used in the USA to collect forest pests such as bark beetles (Scolytidae). The traps are hoisted into the canopy of the tree and secured by a long rope.

Imagine the logistics of first selecting a suitable tree, and then working out just how to get the trap into the canopy of said tree. This part of the fieldwork took some time, and involved much throwing of rope:
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Throwing the rope!

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Standing around thinking about throwing the rope!

 

 

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Letting go of the end of the rope so that it landed completely over the other side of said tree and not actually in the tree…

And so it went on until eventually there was success!

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Question: how many entomologists does it take to throw a rope?

From left to right Malcolm Kerley, Alex Sadek, Max Barclay, Max Barclay (stuck in a tree?) Roger Booth, David Oram.

 

 

But the major event of the day was the finding of the Scarlett Malachite Beetle, Malachius aeneus (Malachiidae - Soft-winged flower beetles).
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© Chris Gibson


This beetle, whose range has declined to such an extent that it is listed as 'rare' on the UK’s Biodiversity Action Plan, http://jncc.defra.gov.uk/default.aspx?page=5155 is currently only known from eight sites throughout the UK.

 

 

For more information on this beautiful beetle, and especially if you would like to attempt to see it in the wild, go to Buglife, who are currently running a Scarlet Malachite Beetle Survey to help monitor this beetles’ populations.
http://www.buglife.org.uk/

 

 

OPAL (Open Air Laboratories), who have just launched their fantastic Bug Hunt Survey, will also help you to get outside and go collecting – more details here:
http://www.opalexplorenature.org/


Our Plymouth University intern Lucia Chmurova was sweeping a verge in the early afternoon consisting of mixed vegetation of rough grasses, buttercups, cow parsley and dock, when this beetle was caught in her net. This was truly an amazing find as this beetle hasn’t been recorded in Surrey for more than 50 years (Denton, 2005) and is a first record for Bookham! So well done Lucia, perhaps we are all ‘scarlet’ with envy, rather than green, at this find!
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Here is Lucia investigating the undergrowth!

 

Lucia’s note will be published in the next edition of the Coleopterist.
http://www.coleopterist.org.uk/

 

 

For some excellent cinematic photos of the day follow Libby Livermore’s (our official capturer of entomologists in action) link here:
http://www.flickr.com/photos/evilibby/sets/72157626652914393/with/5748748470/



Blaps

Blaps

Member since: Sep 15, 2009

I'm Beulah Garner, one of the curators of Coleoptera in the Entomology department. The Museum's collection of beetles is housed in 22,000 drawers, holding approximately 9,000,000 specimens. This little collection keeps us quite busy!

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