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DISPLAYING POSTS TAGGED: grasshopper (2)

Faces of the north

Author
by Patrick
Publish date
9 March 2012
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Live Exhibits staff visited Cairns and Cape Tribulation in North Queensland in December to augment our live animal collection with fresh genetic stock. We met many interesting animals along the way, so here are a few portraits of the critters that came back with us to Melbourne Museum.

The Giant Mantid is one of the largest mantid species in Australia. They feed on a range of insects but are large enough to overpower small frogs and lizards. Giant Mantids are currently on display in Bugs Alive!.

giant mantid Giant Mantid, Heirodula majuscula.
Image: Patrick Honan
Source: Museum Victoria
 

Raspy crickets derive their common name from the fact that all known species, both male and female, can produce a rasping sound at all stages of development. There are more than 200 species of raspy crickets in Australia and new species are regularly discovered. This very large adult female has powerful jaws and, like all raspy crickets, a bad temper. She ate her way out of several containers on the journey from North Queensland, causing havoc wherever she went.

Raspy Cricket Raspy Cricket, Chauliogryllacris species.
Image: Patrick Honan
Source: Museum Victoria

A male Golden Huntsman, probably the largest huntsman in Australia and generally considered the second largest in the world. This species sometimes causes panic when it enters houses, but like most huntsmans it is relatively harmless.

Golden Huntsman spider Golden Huntsman, Beregama aurea.
Image: Patrick Honan
Source: Museum Victoria

Net-casting Spiders are famous for their ability to spin perfectly rectangular silken nets, about the size of a postage stamp. These nets are thrown over passing prey as the spider sits suspended above an insect pathway. In honour of their enormous eyes, they are also known as Ogre-Faced Spiders.

Net-casting Spider Net-casting Spider, Deinopis bicornis.
Image: Patrick Honan
Source: Museum Victoria
 

French's Longicorn is one of Australia's larger beetle species. This one was found in a small mating aggregation on a strangler fig in the rainforest at night. Longicorns are characterised by kidney-shaped eyes which wrap around the base of the antennae.

French's Longicorn beetle French's Longicorn, Batocera frenchi.
Image: Patrick Honan
Source: Museum Victoria
 

The spiny legs of the Serrated Bush Katydid give it both its common and scientific name. Adults are always green, but nymphs may be red, brown or violet, depending on the colour of the leaves on which they feed. Males produce a short, loud call which is commonly heard in the rainforest at night. Another katydid, the Kuranda Spotted Katydid, is one of the larger and more robust of this group in Australia. The nymphs closely resemble ants, which may afford them some protection against predators. The eggs are glued to dead twigs by the female using a short, thick ovipositor.

katydids Left: Serrated Bush Katydid, Paracaedicia serrata. | Right: Kuranda Spotted Katydid, Ephippitytha kuranda.
Image: Patrick Honan
Source: Museum Victoria
 

These creatures, and many more, can be seen every day in Bugs Alive! at Melbourne Museum.

Live Exhibits’ trip to the Alps

Author
by Chloe
Publish date
13 April 2011
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This guest post is by Chloe, a Live Exhibits keeper at Melbourne Museum.

At Live Exhibits we like to keep a range of funnel-web species. This way we can represent not only the infamous Sydney Funnel-web spider, but the majority of Australian funnel-web species in our exhibits.

As it had been six years since Live Exhibits’ last trip to Nariel Valley, it was time for Jessie, Patrick and I to pack up the car and head off on a field trip in the to find some Alpine Funnel-webs (Hadronyche alpina).

Alpine Funnel-web Alpine Funnel-web, Hadronyche alpina.
Image: Chloe Miller
Source: Museum Victoria
 

Local resident Mrs Brown originally alerted the museum’s Discovery Centre to the presence of a population of Alpine Funnel-webs in the Nariel Valley and more particularly her front lawn. Young funnel-webs emerge from their mother’s burrow, find an attractive burrow site, and then burrow down, which makes for high density populations. For us, this leads to quick collection of multiple specimens.

After finding three funnel-webs around our campsite it was time to head off to Mrs Brown’s place, where she showed four large burrows. We started digging holes in the mud more than 30cm deep, a process much more lengthy than expected, using only a desert spoon to dig, trying not to destroy Mrs Brown’s lawn or injure the spiders. Finally we produced four plump female funnel-webs (which were less than happy about being disturbed) then we balanced them on a spoon to be transferred into their new glass homes.

Alpine Funnel-web Alpine Funnel-web, Hadronyche alpina
Image: Chloe Miller
Source: Museum Victoria
 

Soaking wet with seven funnel-webs under our belt and no sign of any more, it was time to head off to Omeo.

The following day drove up the windy, fog-covered hills to Mt Hotham, where we began our search for Alpine Thermocolour Grasshoppers (Kosciuscola tristis), Alpine Blistered Pyrgomorphs, (Monistria concinna), Mountain Katydids (Acripeza reticulata) and Alpine Katydids (Tinzeda albosignata).

Alpine Katydid & Alpine Thermocolour Grasshopper Left: Alpine Katydid, Tinzeda albosignata. Right: Alpine Thermocolour Grasshopper Kosciuscola tristis.
Image: Alan Henderson
Source: Museum Victoria
 

On warmer days these invertebrates would be sitting up on small bushes and grass clumps, enjoying the sun. However on cooler foggy days, like the day of our visit, many of the invertebrates sink lower into the foliage to protect themselves against the elements, making our search a little harder and much wetter. Thankfully I had donned plastic pants and a rain coat which made the perfect outfit, although they didn’t help the situation in my boots, which contained enough water to fill a small lake.

Foggy Mt Hotham Foggy conditions for collecting invertebrates at Mt Hotham.
Image: Patrick Honan
Source: Museum Victoria
 

During the morning of searching, Patrick’s alter ego Taxon Boy didn’t let us down, helping us bag 48 Thermocolour Grasshoppers, 7 Alpine Katydids, 1 Mountain Katydid, 12 Alpine Blistered Pyrgomorphs and a female Alpine Wolf Spider (Lycosa sp.).

Alpine Wolf Spider, Lycosa sp.. Alpine Wolf Spider, Lycosa sp.
Image: Chloe Miller
Source: Museum Victoria
 

We made one final stop on our long drive back to the museum to collect some eucalyptus for our stick insects; here Taxon Boy also stumbled across some large Garden Orb-weavers (Nephila edulis) which you can now see on display in the Orb wall in Bugs Alive! at Melbourne Museum.

Garden Orb-weaver Garden Orb-weaver, Nephila edulis.
Image: Alan Henderson
Source: Museum Victoria
 

Links:

Infosheet: Spiders of Victoria 

MV Blog: TV Crew in Bugs Alive

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Updates on what's happening at Melbourne Museum, the Immigration Museum, Scienceworks, the Royal Exhibition Building, and beyond.

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