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Latest Hymenoptera Stories

2011-08-30 06:27:56

Flight attacks of small parasitoid wasps (no larger than 2.0 mm in size) on ant workers have been filmed by José María Gómez Durán from Madrid. The four species of wasps show amazing adaptations and enormous differences in the tactics they use. Two of the four filmed species are new to science and are described by Dr Kees van Achterberg from NCB Naturalis Leiden. The study was published in the open access journal ZooKeys. Ants are a very...

2011-08-19 06:48:00

ATLANTA, Aug. 19, 2011 /PRNewswire/ -- As Americans gear up for the final days of summer with last-minute vacations and Labor Day barbeques, one tradition remains as constant as back-to-school sales - pest activity. In a recent Omnibus survey conducted by Atlanta-based pest control leader Orkin, flies (45 percent), flying and stinging insects (40 percent) and mosquitoes (39 percent) were most frequently seen in and around homes within the past month. In addition, 30 of 31 Orkin region...

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2011-06-14 09:57:28

Bees use their eyes to tell them how best to streamline their bodies for rapid flight, a world first study shows. Scientists at The Vision Centre have fooled the honeybee into revealing its flying secrets by tethering the creature and running background images past its eyes. This tricks the bee into thinking it is "Ëœflying' and it moves its body into a posture for rapid flight "“ even though both it and the air are still. The research indicates that vision is an important...

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2011-06-08 11:08:52

By Louis Bergeron, Stanford University Stanford sophomores studying ants in a summer course discovered that the local ants were using poison to kill invading Argentine ants. The discovery provides new insight into the war between the local "winter ants" and the South American invaders who have shown up everywhere from California to South Africa. Argentine ants are taking over the world "“ or at least the nice temperate parts. They've spread into Mediterranean and subtropical climates...

2011-05-27 15:00:00

WINSTON-SALEM, N.C., May 27, 2011 /PRNewswire-USNewswire/ -- As the nation's electrical power grid becomes more interconnected through the Internet -- from the nuclear power plant in California to transmission lines in Texas to the microwave in your kitchen -- the chances of cyber attacks increase as well. Errin Fulp, a professor of computer science at Wake Forest University, is training an army of "digital ants" to turn loose into the power grid to seek out computer viruses trying to...

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2011-05-23 09:41:51

By Shelley Littin, University of Arizona University of Arizona researchers have uncovered evidence in ant colonies that suggests that social networks may function differently than previously assumed Be it through the Internet, Facebook, the local grapevine or the spread of disease, interaction networks influence nearly every part of our lives. Scientists previously assumed that interaction networks without central control, known as self-directed networks, have universal properties that make...

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2011-05-13 03:36:37

Study increases understanding of 'coevolved mutualism' between ants and trees Survival in the depths of the tropical rainforest not only depends on a species' ability to defend itself, but can be reliant on the type of cooperation researchers discovered between ants and tropical trees. The research, published in Biotropica, reveals how the ants use chemical signals on their host tree to distinguish them from competing plant species. Once a competing plant is recognized the ants prune them to...

2011-05-09 14:42:44

Tropical carpenter ants (Camponotus leonardi) live high up in the rainforest canopy. When infected by a parasitic fungus (Ophiocordyceps unilateralis) the behaviour of the ants is dramatically changed. They become erratic and zombie-like, and are manipulated by the fungus into dying at a spot that provides optimal conditions for fungal reproduction. New research, published in BioMed Central's open access journal BMC Ecology, looks at altered behaviour patterns in Zombie ants in Thailand and...

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2011-04-26 10:18:02

A plant's sugary offering betrays caterpillars to predatory ants Trichomes, hair-like projections on leaves, are part of a plant's defense against herbivores: they can be obstacles, traps, or reservoirs for toxic substances. The hairs of wild tobacco Nicotiana attenuata contain primarily acyl sugars, which are composed of the common sugar, sucrose, bound to branched chain aliphatic acids, compounds that give baby vomit its distinctive odor. Tiny, freshly hatched caterpillars consume these...

2011-03-10 15:14:17

In mathematics, you need at most only four different colors to produce a map in which no two adjacent regions have the same color. Utah and Arizona are considered adjacent, but Utah and New Mexico, which only share a point, are not. The four-color theorem proves this conjecture for generic maps of countries, but actually of more use in solving scheduling problems, scheduling, register allocation in computing and frequency assignment in mobile communications and broadcasting. Researchers in...


Latest Hymenoptera Reference Libraries

Jack Jumper Ant, Myrmecia pilosula
2013-07-10 13:00:54

The jack jumper ant (Myrmecia pilosula), known by other names including the jumping jack or hopper ant, is a species of bull ant that can be found in Australia. Its range includes Tasmania, New South Wales, and rural areas of Victoria. This species is unique in that its genome only holds on set of chromosomes, which is the lowest number of chromosomes that any animal can hold. Like other bull ants, this species can build nests under rocks or under dirt mounds. The jack jumper reaches an...

Inchman, Myrmecia forficate
2013-07-10 12:28:46

The inchman (Myrmecia forficate) is a species of bull ant that can be found in Australia, in a range that includes Tasmania and possibly southeastern areas of Australia. This species is gregarious, living in colonies like most other ant species, but it forages for food alone. Nests often go unseen and are typically found under rocks.  It reaches an average body length of up to one inch long, the trait from which it received its common name. The inchman is both a scavenger and a...

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2005-09-12 11:56:41

A wasp is any insect of the order Hymenoptera and suborder Apocrita that is not a bee, sawfly, or an ant. The less familiar suborder Symphyta includes the sawflies and wood wasps, which differ from the Apocrita by having a broad connection between the thorax and abdomen. Also, Symphyta larvae are mostly herbivorous and "caterpillarlike", whereas those of Apocrita are largely predatory or parasitic. Most familiar wasps belong to the Aculeata, a division of the Apocrita whose ovipositors are...

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2005-09-09 09:51:50

The Bombyliids are a large family of flies with hundreds of genera. Their life cycles are not well known. Adults generally feed on nectar and pollen, thus are pollinators of flowers. They superficially resemble bees, thus are commonly called bee flies, and this may offer the adults some protection from predators. The larval stage are predators or parasitoids of other insect eggs and larvae. The adult females usually deposit eggs in the vicinity of possible hosts, quite often in the burrows...

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2005-09-09 09:43:40

The bumblebee is a flying insect of the genus Bombus in the family Apidae and a relative of the common honeybee. The bumblebee feeds on nectar and gathers pollen to feed its young. They are beneficial to humans and the plant world alike, and tend to be larger than other members of the bee family. Most bumblebee species are gentle. From this comes their original name: "Humblebee". Bumblebees are social insects that are known for their black and yellow striped bodies, a commonality among the...

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Word of the Day
siliqua
  • A Roman unit of weight, 1⁄1728 of a pound.
  • A weight of four grains used in weighing gold and precious stones; a carat.
  • In anatomy, a formation suggesting a husk or pod.
  • The lowest unit in the Roman coinage, the twenty-fourth part of a solidus.
  • A coin of base silver of the Gothic and Lombard kings of Italy.
'Siliqua' comes from a Latin word meaning 'a pod.'
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