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Curator of Lepidoptera

2 Posts tagged with the wasps tag
2

Not only Leps!

Posted by Alessandro Giusti Sep 3, 2013

In previous posts I described how I have been lucky enough to travel to Borneo on fieldwork for the Museum. I explained how moths are collected using light traps, and we also got to meet some of the moths I found during this trip.

 

The four light traps at our camp were obviously very popular with many different species of moths, but when you put up a light trap in areas which are biologically rich - and this is particularly true in tropical regions - a whole range of other insects show up too.

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Enthralled by the many exotic species of moths attracted to one of our light traps.

 

Many species of beetles, attracted by the bright ultraviolet light of our traps, kept the coleopterists on the trip, Beulah, Max and Howard, busy collecting their favourite invertebrates.

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Collecting our favourite species at the light traps.

 

Some interesting and rare species were sampled in this way, including the magnificent Chalcosoma, a dynastine beetle.

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The striking dynastine beetle Chalcosoma moellenkampi (female on the left and male on the right) was one of the many interesting and rare insects visiting the light trap.

 

Other frequent visitors to the light traps were mantises and crickets which, true to their predatory habit, invariably found a tasty prey to feed upon. Hefty cicadas and large bees and wasps were also numerous; their blatant cries and unpredictable flight paths were a source of constant distraction for us, as we tried to concentrate on less vociferous and placid species. Many flies, stink-bugs, frog- and leaf-hoppers, parasitic wasps and flying ants and termites were also regular visitors at our light traps.

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A great variety of other species of insects are commonly attracted by light traps.

 

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…and even a terrestrial crab!

 

At times, it seemed that the arthropod fauna of the entire neighbourhood was paying a visit to our light traps and every night we were pleasantly surprised to find a new species of moth or beetle appearing at the trap for the first time. The number of insects visiting the traps only decreased during a few nights at the end of the trip; this is because the moon was full and clearly visible from early evening to late night. However we were still up late, trying to collect the few interesting species which, untouched by the resplendent show in the sky, were still paying a visit to our comparatively dingy traps.

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There is no way a light trap can compete with such a large and incredibly luminous celestial body!

 

During the mornings, while my colleagues were checking the Flight Interception and Malaise traps we put up in the forest, or collecting beetles using other methods, I was busy pinning the moths collected the night before. 

 

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Setting micro- and macromoths in the field.

 

This has definitely been an amazing field working experience and judging by the number of specimens we have brought back a very successful one too. We’ve collected in the region of 13,000 specimens, which, after having gone through the freezing process, will soon be ready to be sorted and identified, mounted and labelled, electronically recorded and finally incorporated in our ever growing collections.

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My recent field work

Posted by Alessandro Giusti Jun 20, 2013

So let me tell you about my last bit of work experience - if you've already been enjoying Beulah Garner's Beetle blog, you'll know that recently she and her fellow coleopterists went on a trip to Borneo. For the sake of completeness, I should point out that the Borneo team for the trip also had a lepidopterist on board. And that was me! Hence, in the company of three beetle zealots that go by the name of Beulah the blaps, Max the Macrodonta and Howard the Temerarious, I thought I’d be up for a challenging field work experience.

 

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Alessandro, Max, Howard, and Beulah socializing and relaxing in Kota Kinabalu, before the hard work begins.

 

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Despite being a moth curator, I can’t resist showing a picture portraying myself with a beautiful newly emerged Troides amphrysus, a papilionid butterfly.


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And here I am again, this time face to face with a handsome hawkmoth (Daphnis hypothous).

 

Once in the field the four of us did a great deal of sniffing, inspecting and probing, trying to ascertain each others’ intentions; and after our exigencies and flaws had been determined we recognized where each of us stood and accepted our echelons.

 

And so began our fieldwork experience which, apart from the rare squabbles caused by blunt episodes of trespassing in our private boundaries, turned out to be a rather successful one. After all we were there with a common aim that could have only been achieved with a team effort and we certainly had the enthusiasm to go with it.

 

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Our first supper at the camp. Little did we know that from that day onwards, rice was to be the fundamental ingredient of all our meals, breakfast included…not to mention the questionable rice wine.

 

The aim of this trip was to collect insects from an area near the western edge of the Crocker Range, in the Sabah region of Borneo, an area not well represented in our Museum collections; all in order to expand our knowledge of the world’s biodiversity.

 

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Our base was at ca. 1,200 metres above sea level and we had amazing views of the surrounding valleys and mountains.

 

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Further in the distance the impressive 4,095 metre high Mount Kinabalu seemed to keep a constant vigil on our camp.

 

Different sampling methods are used to collect different groups of insects, and during this trip we employed a good range of them. We set up 7 malaise traps and 7 flight interceptor traps (FIT) in selected sites of the forest around the camp, to collect flying insects such as beetles, flies and Hymenoptera (bees and wasps).

 

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Putting up flight interceptor and malaise traps, and digging for victory (or was it for dung traps?).

 

We gathered leaf litter, dead wood and other organic material, such as figs, Asplenium ferns and bracket fungi, and sampled them separately in Winkler bags or by hand; we filled buckets with rotting fish, fermented fruits and dung (I won't tell you whose it was) to attract beetles and other unfussy insects. We regularly went for long walks in nearby areas to collect insects by sweeping with nets.

 

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On one of our long walks collecting insects by netting. We were often also sampling for insects in different types of organic material.

 

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Some days the field work was so exhausting that even the experienced and indefatigable amongst us had to take a nap.

 

And as if that wasn’t enough, every day after having being mesmerized by yet another magnificent and unique sunset, we would turn on our light traps (4 of them to be precise) and spend hours checking each of them in turn, collecting whatever we thought was worth recording.

 

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Every evening the sky and landscape around the camp would become the backdrop to breathtaking and exclusive sunsets.

 

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Can photographing sunsets every evening, have disturbing consequences on people’s size? 

 

Sorry if I haven’t talked much about lepidopterans in this post, but I thought it was important to give a little introduction before getting down to business. So if you enjoyed reading this make sure you don’t miss my next entry where I will actually feature some lepidopterans and talk about catching moths in Borneo.

 

But ... just to wet your appetite...

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Large - and beautiful - Atlas moths were regular visitors at our moth traps. This is Archaeoattacus staudingeri, a relative of the more common Attacus atlas, found in Borneo and other areas of the Sundaland region.