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Bug-Eye to Produce Queens As Copies of Herself She Lays (Observations of Insects in the Field

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Bug-Eye to Produce Queens As Copies of Herself She Lays (Observations of Insects in the Field NEWSLETTER AUGUST 2005 WESTERN AUSTRALIAN INSECT STUDY SOCIETY INC. COMMITTEE OF MANAGEMENT 2005-2006 President: Otto Mueller (telephone 9312 1123) Secretary: Terry Houston (c/o Western Australian Museum, telephone 9427 2742) Treasurer: Ron Kennealy Councillors: Jan Taylor (telephone 9384 1475) Andrew Williams (c/o Dept of CALM, telephone 9405 5117) Eric McCrum (telephone 9295 3344) Peter Langlands Peter Ray (telephone 9298 8145) Membership: All enquiries regarding membership and any subscriptions should be forwarded to the Secretary. Newsletter: All contributions and enquiries should be directed to the Secretary during the temporary absence of Jan Taylor: (telephone 9427 2742; e-mail [email protected]). Web-site: http://agspsrv34.agric.wa.gov.au/ento/waiss/ *************************************************************************** Contributions to the Newsletter by members are welcome: tell us about your entomological activities, observations, or concerns. *************************************************************************** Cover illustration: Facial view of the Brazilian longicorn beetle, Acrocinus longimanus (Cerambycidae). This species is known as the Harlequin Beetle. More details are given in the summary of Peter Langlands’ talk of 8 June. Photo: Peter Langlands. WESTERN AUSTRALIAN INSECT STUDY SOCIETY INC. NEWSLETTER FOR AUGUST 2005 on the less-populated side of the island helping Coming Events some PhD students with fieldwork. The research station was only 100m from the beach NEXT MEETING and surrounded by hills with Atlantic Wednesday 10 August 2005 rainforest. The fieldwork wasn’t too onerous commencing 7.30 pm allowing Peter time to walk in the surrounding Kings Park Administration Centre area where he photographed a variety of insects. Among them was a beetle with the Main feature: elytra (wing cases) flanged at the edges and raised into hump in the middle (see below). “Ants of The South-West” Dr Brian Heterick from Curtin University will provide an illustrated introduction to the diversity of ants in south-western Australia. Focus: “Wonders of the Dragonfly World” Jan Taylor will demonstrate a CD-ROM produced in Serbia for a photographic exhibition of the world’s Odonata, compiled from photographs from all parts of the globe (including Australia). ______________________________________ A peculiar leaf beetle (Chrysomelidae) Photo: Peter Langlands Report on the June From the island, Peter returned to Rio and Meeting stayed in the hills further inland. A nearby stream provided a wealth of aquatic insects Main address: including a dragonfly only just starting to emerge from its nymph (see next page). Sitting “Peripateticus braziliensis in the water he managed to capture a sequence A snapshot of the fauna of Brazil” of shots of the dragonfly inflating its wings, drying them and flying off, all within less than WAISS member Peter Langlands spoke about 20 minutes! his recent travels through Brazil, focusing on the amazing plants and animals of the east Travelling north, Peter’s last location was a coast’s Atlantic rainforest. coastal town called Ilheus, famous in Brazil as the birthplace of the novelist Jorge Armado. Brazil is a very large country, even larger than Here Peter was exposed to the gigantic insects Australia, and contains vastly different of the tropics including a rhinoceros beetle regions, from the Amazon basin in the north to (Dynastes hercules) and a cerambycid beetle the Pantanal wetlands and the grass plains of (Macrodontia cervicornis), both of which were the south. Peter’s sojourn started in the city of ¾ the length of his hand (see next page). Rio de Janeiro (translating as ‘river of Although the cerambycid looked as though it January’) which is just above the Tropic of could chew off fingers, Peter assured us that it Capricorn. From there, he visited Ilha Grande didn’t. The larvae are strictly vegetarian and (big island) around 150 km away and a burrow in the stems of coconut palms. Among popular tourist destination. Peter was stationed the gigantic insects were a lantern bug and a 3 WESTERN AUSTRALIAN INSECT STUDY SOCIETY INC. NEWSLETTER FOR AUGUST 2005 cicada three times the size of Australian cicadas. A rhinoceros beetle, Dynastes hercules. The horns are used for duelling with other males. Photo: Peter Langlands Of course, not all tropical insects are huge and Peter showed photographs of a minute weevil and some tiny pseudoscorpions. The latter, which superficially resemble scorpions, had hitched a ride under the elytra of a Harlequin Beetle (Acrocinus longimanus). This strange habit of insect-riding is called phoresy and probably aids in dispersal and the location of mates. A dragonfly of the family Gomphidae just emerging from the larval skin (above) and fully expanded. Photos: Peter Langlands Two pseudoscorpions found hitch hiking under the wings of a Harlequin Beetle. Photo: Peter Langlands Other photos depicted a hawk moth with a proboscis nearly 20cm long, a large weevil with a very hairy nose, and a beautiful frog that was living in the bathroom. However, it seems it wasn’t all fun and games for Peter as The beetle Macrodontia cervicornis (family he collected more insects than he planned! Cerambycidae). Photo: Peter Langlands Towards the end of his time in Ilheus he 4 WESTERN AUSTRALIAN INSECT STUDY SOCIETY INC. NEWSLETTER FOR AUGUST 2005 noticed a small blister with a black spot on the Excursion: underside of his little toe. Assuming it to be a Two members of WAISS joined the Darling splinter, he was not alarmed and subsequently Range Branch of the WA Naturalists Club forgot about it. A couple of days later when he excursion to John Forest National Park. By all noticed it again he became suspicious, accounts it was a successful day. Some of the recalling stories told by fellow travellers. A insects seen included three species of butterfly: friend managed to cut out the lump which was a Meadow Argus, a Common Brown and a preserved and examined under the microscope. Wood White, also some fine bull ants and many It was then possible to see the culprit involved meat ants. - a flea called Tunga penetrans or, to Brazilians, Bicho do pé (bug of foot). Unlike Annual General Meeting most fleas that simply suck blood externally, The 2005 AGM followed the general meeting. the female of this species burrows beneath the Minutes are appended at the end of this skin of humans and other animals. Here it newsletter. swells with eggs to the size of a pea and _____________________________________ ultimately the eggs are released into the soil to start the cycle again. Fortunately, this particular species of flea doesn’t occur in News, Notes And Australia and it is not a major health risk anyway. The biggest risk is infection Announcements following their removal. New Members Ilheus is in the heart of cacao plantations, the Welcome to the following new members land of chocolate! A visit to the nearby cacao (location and interests are noted in parenthesis): research plantation led Peter into encounters with some of the local vertebrates. The centre Mark Brown (Canning Vale; general interests) houses injured animals and had an enclosure Kerry Ironside (Mt Lawley; invertebrate with two species of sloth. A reptile room also ecology, conservation and research) revealed an array of snakes and lizards and a Tom, Olivia and Jacob Watson (Bicton; aquatic very noisy rattlesnake. Peter finished by insects) talking about the perilous future of all of these wonderful plants and animals. The Atlantic Total Membership rainforest has been identified as one of the top WAISS membership now stands at 101 full 25 hotspots of biodiversity in the world, with members and 45 family members. over 2% of the world’s plant and vertebrate species. However, it is one of the most endangered ecosystems, with less than 5% of Do you want your WAISS Newsletter its original area remaining! Conserving this Electronically? habitat will be a big challenge as Brazilians Peter Langlands suggested at the July race to become part of the First World. Management Committee meeting that some members with internet access might prefer to ooOoo receive their WAISS Newsletters electronically instead of, or in addition to, the Insect in focus: regular paper copy. This option offers a couple Dr. Joseph Tomkins from Animal Biology at of advantages: (a) the Society would save the University of WA spoke about earwigs, money and effort on postage and reduce paper with special reference to the European Earwig usage; (b) the electronic version would have at We hope to have a summary of his presentation least some photos in full colour. The in the October Newsletter. committee would like to gauge the level of interest of members in receiving their 5 WESTERN AUSTRALIAN INSECT STUDY SOCIETY INC. NEWSLETTER FOR AUGUST 2005 newsletters this way. If you are interested, named Hyposmocoma molluscivora. Other please email the Secretary predatory moth larvae are known from the area, ([email protected]) particularly one with talon-like legs used to grab stating if you would like: insect prey. a) only an electronic newsletter, or b) an electronic version in addition to a paper There are of course many other insects that feed copy. on snails, particularly flies. The larvae of the colourful Australian subfamily Ameniinae Fire ants lead in the battle of the sexes (Calliphoridae) are parasitic on snails. An article published on-line 29 June in Nature Elsewhere the sciomyzid Sciomyza dryomyzina shows another twist in the road to social order in is known as a snail parasite. Beetles may also be Hymenoptera. Studies by Denis Fournier, of snail predators, such as the glow-worm in the Université Libre in Brussels, Belgium, on England and larvae of some members of the the Little Fire Ant (Wasmannia auropunctata), family Silphidae (Phosphuga atrata). in French Guiana found that all the females had – Jan Taylor. the same genetic makeup, being clones of the original queen. The male sperm was used to For more details see the website below: produce workers but the male role in producing queens had somehow been abolished.
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