Author: More than a Dodo

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Well, oil be


Now is the time of year to look out for the Rugged Oil Beetle Meloe rugosus and Oxfordshire can boast being one of this species hotspots in the UK. BugLife, the invertebrate conservation organisation, has been collating distribution data and promoting the conservation of the British oil beetles, all of which are in decline.
meloe rugosus, beetle, insect, OUMNH, HEC, meloidae
A female Rugged Oil Beetle, Meloe rugosus (Family Meloidae)
This group of insects has benefitted greatly from increased public awareness and with the help of newly recruited recorders we now have a much better understanding of the groups distribution across the UK.
Out of eight species of Oil beetle that have been recorded in the UK, four are thought to be extinct*. Of the remaining four species, two are relatively common: the Black Oil Beetle, Meloe proscarabaeus and the Violet Oil Beetle, Meloe violaceus. The other two, the Short-Necked Oil Beetle Meloe brevicollis and the Rugged Oil Beetle Meloe rugosus however are very rare.
All four species are important idicators of solitary bee populations as they are dependant on the bees for their own reproduction. Their lifecycle is pretty exciting really but is a little complicated at first glance. Here’s a simplified version to explain how the bees come into it all:

  1. A female oil beetle digs a burrow and fills it with hundered of eggs.
  2. The eggs hatch and the larvae emerge. These are called triungulia** and exhibit unique co-operative behaviour.
  3. The larvae gather on flower heads, forming living pyramids so as to enable them to hitch a lift on solitary bees visiting the flowers.
  4. The bee unwittingly transports its passengers and ultimately with a little luck, they end up in a female bees burrow. At which point they hop off and make themselves at home.
  5. The larvae eat the eggs of the bee, along with any stores of pollen and nectar.
  6. The larvae develops in the burrow, eventually emerging as an adult ready to look for a mate.

The short story? The more adult Meloe that are seen then the more bees there are. 
Obviously it is more complicated than this and a whole wealth of further information can be found on the BugLife website, along with links to the recording scheme, identification guides and the Oil Beetle Conservation Project.
Staff at the HEC have been helping by identifying and providing data on specimens from Museums across the UK, as seen in this recent news article.
*within the UK; not worldwide.
** their name comes from the fact that they have three claws on each foot.

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Imaging the Lepidoptera Type collection

We have over 4,000 Lepidoptera (butterflies and moths) types in the HEC. For the past two and a half years we have been working on a project to database and image all of the specimens so as to make them accessible to everyone the world over.

type, butterfly, Lepidoptera, OUMNH, HEC

 All of these specimens are special because they are types. Most of them are of historical value as well. The specimen above is over 100 years old and still looks as good as it did the day that it was collected, thanks to the careful care and attention it has been given by past curators here at the museum.

Our photographer, Katherine Child, has been working tirelessly to produce plates of each specimen and its associated labels. The finished database, which will be going on-line sometime in the near future, will hold all the information that researchers need in order to study species morphology and distribution. More than this though, it will hold the thousands of photographs of these beautiful insects for anyone to browse through at their leisure.

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Welcome to our new Entomology department blog!

The Oxford University Museum of Natural History (OUMNH) will be closed to members of the public for a year from January 1st 2013 as work is undertaken to restore the glass roof to its former glory.

However, behind the scenes, life will be carrying on much as normal.

Members of staff from the entomology department will be blogging about what is going on behind closed doors, hopefully keeping people in touch and up to date on news, views and fun things to do with both the department and the wider worlds of museums and entomology as a whole.