Quantcast

Latest Hymenoptera Stories

Cunning Super-parasitic Wasps Sniff Out Protected Aphids And Overwhelm Their Defenses
2012-02-23 18:00:20

In the war between parasite and host, the parasitic wasp, Aphidius ervi, and the pea aphid, Acyrthosiphon pisum, are locked in a battle for survival. New research published in BioMed Central's open access journal BMC Biology shows that this cunning parasite sniffs out differences between protected and unprotected aphids, and alters its egg-laying strategy, in order to overwhelm aphid defenses and ensure survival of wasp offspring. The wasp, A. ervi, lays an egg inside the pea aphid, where...

Ants Remember Their Rivals' Scent
2012-02-22 05:49:02

Researchers from the University of Melbourne report they have found that ant colonies share a collective memory for the odor of ants in rival nests. According to the new research, the ants use the information to identify the rival ants and compete, similar to how sports fans know each other by wearing their teams' colors. Study leader Professor Mark Elgar from the University's Department of Zoology said the ant colony's collective memory helps give an edge in a competitive world by...

2012-02-13 08:00:00

The Physiology and Zoology Sciences are two new key categories covered by the Sciences Social Network ScienceIndex.com. The users of the website monitor nearly 160 scientific Physiology and Zoology journals and submit the most significant scientific results of these journals for inclusion in ScienceIndex.com. ScienceIndex.com was established in 1998 to index the very latest news, headlines, references and resources from science journals, books and websites worldwide. The site covers news in...

Image 1 - Wasp Found In New York Shows Up In Southern California
2012-01-25 04:00:42

UC Riverside entomologist discovered Gonatocerus ater in Irvine; wasp arrived in the United States from Europe In August 2010, an entomologist at the University of California, Riverside discovered a tiny fairyfly wasp in upstate New York that had never been seen in the United States until then. Nearly exactly a year later, he discovered the wasp in Irvine, Calif., strongly suggesting that the wasp is well established in the country. Called Gonatocerus ater, the wasp is about 1...

Scientists Discover Key to Creating 'Supersoldier' Ants
2012-01-06 13:55:10

According to a new report published in the journal Science, an international team of researchers has found a way to program ants to become so-called “supersoldiers”. And what´s even more exciting, say researchers, the hidden switch for unlocking the trait in ants might also be present in a number of other species. All ant colonies, like those of their fellow Hymenoptera wasps and bees, are organized into various classes known as ℠castes´, which include,...

2011-12-15 11:22:08

Worker ants from a particular species of African ants have potent venom that can paralyze and kill termites from a distance, according to a study published Dec. 14 in the online journal PLoS ONE. The research, conducted using a species called Crematogaster striatula, showed that chemicals the worker ants emit from their stinger have three functions: they attract nearby nestmates; repel alien ants; and paralyze and kill termites. While the first two effects require the ants to come into...

2011-12-12 21:32:55

No laggards, those bees and plants. As warm temperatures due to climate change encroach winter, bees and plants keep pace. An analysis of bee collection data over the past 130 years shows that spring arrives about 10 days earlier than in the 1880s, and bees and flowering plants have kept pace by arriving earlier in lock-step. The study also found that most of this shift has occurred since 1970, when the change in mean annual temperature has increased most rapidly, according to Bryan...

2011-12-01 19:06:40

Researchers have confirmed a unique behavior within the male population of tiny fig wasps that pollinate fig trees — they team up to help pregnant females, even if they have not mated themselves. Published online in the Royal Society journal Biology Letters, the study confirms that placid male pollinator fig wasps work together to chew an escape tunnel for their females, before crawling back into the fig to die - the non-pollinating variety are too busy fighting each other to help....

2011-12-01 18:45:56

A co-evolutionary arms race exists between social insects and their parasites. Army ants (Leptogenys distinguenda) share their nests with several parasites such as beetles, snails and spiders. They also share their food with the kleptoparasitic silverfish (Malayatelura ponerophila). New research published in BioMed Central's open access journal BMC Ecology shows that the silverfish manage to hide amongst the ants by covering themselves in the ant's chemical scent. Myrmecophilous...

Communal Living Of The Insect Kind
2011-11-17 04:20:02

The social lives of ants, wasps and bees have long been a puzzle to scientists. How did complex insect societies – colonies ruled by a queen and many workers – come to be? A new model adds to discontent with old ideas. Social insect society is divided into specialized castes that take on different roles within the nest. Most of the members of a colony — the workers — forego their own chance for reproduction and instead spend their lives raising offspring that aren't...


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...

0_1b176b063c37655d81f4ab248352d3de
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...

40_7105f67ef0ac80eaa97446c6b40c0af0
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...

0_883369ca3027116bc769a5aa2feb2314
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...

More Articles (16 articles) »
Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.