1. 15:01 23rd Jul 2014

    Notes: 141

    Reblogged from buggirl

    image: Download

    buggirl:

What a dorky looking insect!   Jumping Stick, Tiputini, Ecuador.

    buggirl:

    What a dorky looking insect!   Jumping Stick, Tiputini, Ecuador.

     
  2. 15:00 22nd Jul 2014

    Notes: 10

    Reblogged from fuckyeaharthropods

     
  3. 15:01 21st Jul 2014

    Notes: 616

    Reblogged from scientificillustration

    wapiti3:

    Biologia Centrali-Americana :zoology, botany and archaeology /edited by Frederick Ducane Godman and Osbert Salvin. on Flickr.

    Publication info [London :Published for the editors by R. H. Porter],1879-1915
    BHL Collections:
    Smithsonian Libraries

     
  4. 11:21

    Notes: 63

    Tags: buginsectdobsonfly

    Earlier this month in Sichuan, China, the Insect Museum of West China went on an expedition and found the largest dobsonfly of its kind…

    (Source: kotaku.com)

     
  5. 15:01 20th Jul 2014

    Notes: 54

    Reblogged from buggirl

    image: Download

    buggirl:

Another neat wasp-mimicking fly in the rainforest.
Tiputini, Ecuador

    buggirl:

    Another neat wasp-mimicking fly in the rainforest.

    Tiputini, Ecuador

     
  6. 10:29

    Notes: 11371

    Reblogged from darksilenceinsuburbia

    Tags: butterflybuginsectgynandromorph

    jtotheizzoe:

    staceythinx:

    These genetically unusual butterflies have one male and one female wing, proving that something doesn’t have to be symmetrical to be beautiful.

    Beautiful bilateral gynandromorphs!!

    (Source: thisiscolossal.com)

     
  7. 15:01 19th Jul 2014

    Notes: 269

    Reblogged from rhamphotheca

    image: Download

    libutron:

The feared and fascinating Jack Jumper Ant - the metazoan with the lowest possible number of chromosomes
The Australian Jack Jumper Ant, Myrmecia pilosula (Formicidae), with its 12 mm length, large eyes, and long mandibles with teeth, is an aggressive ant with a very potent sting. 
The sting is not severe (in terms of pain), but this ant is responsible for greater than 90% of Australian ant venom allergy. In Tasmania stings by M. pilosula (and possible the Inchman ant, M. forficate) caused 21–-25% of the 324 cases of anaphylaxis treated with adrenaline in the Royal Hobart Hospital Emergency Department between 1990 and 1998, compared with 13% caused by honeybee stings.
Moreover, what I personally find fascinating is the fact that ants of the Myrmecia pilosula species complex include some individuals with the lowest possible metazoan chromosome number of 2n = 2, although others in this cluster of sibling species have much higher numbers, the known maximum being 2n = 32.
If we also consider that males are haploid (they have a single set of chromosomes in the nucleus of their cells), as in other Hymenoptera, the somatic cells of males contain only a single chromosome.
Other common names: Jumper Ant, Hopper Ant, Jumping Jack, Bull Ant.
References: [1] - [2] - [3]
Photo: ©Arthur Chapman
Locality: Falcons Lookout Track, Werribee Gorge State Park, near Ballan, Victoria, Australia 

    libutron:

    The feared and fascinating Jack Jumper Ant - the metazoan with the lowest possible number of chromosomes

    The Australian Jack Jumper Ant, Myrmecia pilosula (Formicidae), with its 12 mm length, large eyes, and long mandibles with teeth, is an aggressive ant with a very potent sting. 

    The sting is not severe (in terms of pain), but this ant is responsible for greater than 90% of Australian ant venom allergy. In Tasmania stings by M. pilosula (and possible the Inchman ant, M. forficate) caused 21–-25% of the 324 cases of anaphylaxis treated with adrenaline in the Royal Hobart Hospital Emergency Department between 1990 and 1998, compared with 13% caused by honeybee stings.

    Moreover, what I personally find fascinating is the fact that ants of the Myrmecia pilosula species complex include some individuals with the lowest possible metazoan chromosome number of 2n = 2, although others in this cluster of sibling species have much higher numbers, the known maximum being 2n = 32.

    If we also consider that males are haploid (they have a single set of chromosomes in the nucleus of their cells), as in other Hymenoptera, the somatic cells of males contain only a single chromosome.

    Other common names: Jumper Ant, Hopper Ant, Jumping Jack, Bull Ant.

    References: [1] - [2] - [3]

    Photo: ©Arthur Chapman

    Locality: Falcons Lookout Track, Werribee Gorge State Park, near Ballan, Victoria, Australia 

     
  8. image: Download

    Respiratory system of insects

Insects have spiracles on their exoskeletons to allow air to enter the trachea. In insects, the tracheal tubes primarily deliver oxygen directly into the animals’ tissues. The spiracles can be opened and closed in an efficient manner to reduce water loss. This is done by contracting closer muscles surrounding the spiracle. In order to open, the muscle relaxes. The closer muscle is controlled by the central nervous system but can also react to localized chemical stimuli. Several aquatic insects have similar or alternative closing methods to prevent water from entering the trachea. Spiracles may also be surrounded by hairs to minimize bulk air movement around the opening, and thus minimize water loss.
Above: Indian moon moth(Actias selene) with some of the spiracles identified


And now for the topic of the human respiratory system….
Madelyne’s journey to a second transplant - please consider donating

    Respiratory system of insects

    Insects have spiracles on their exoskeletons to allow air to enter the tracheaIn insects, the tracheal tubes primarily deliver oxygen directly into the animals’ tissues. The spiracles can be opened and closed in an efficient manner to reduce water loss. This is done by contracting closer muscles surrounding the spiracle. In order to open, the muscle relaxes. The closer muscle is controlled by the central nervous system but can also react to localized chemical stimuli. Several aquatic insects have similar or alternative closing methods to prevent water from entering the trachea. Spiracles may also be surrounded by hairs to minimize bulk air movement around the opening, and thus minimize water loss.

    Above: Indian moon moth(Actias selene) with some of the spiracles identified

    And now for the topic of the human respiratory system….

    Madelyne’s journey to a second transplant - please consider donating

     
  9. 15:01 18th Jul 2014

    Notes: 276

    Reblogged from scientificillustration

     
  10. 15:00 17th Jul 2014

    Notes: 210

    Reblogged from coffeenuts

    Tags: buginsectweevilwhite weevil

    image: Download

    coffeenuts:

ronbeckdesigns:Black and White Weevil (by Andre de Kesel)

    coffeenuts:

    ronbeckdesigns:Black and White Weevil (by Andre de Kesel)

     
  11. image: Download

    tattoos:

grasshopper (by lyam)

    tattoos:

    grasshopper (by lyam)

     
  12. 15:01 15th Jul 2014

    Notes: 176

    Reblogged from sinobug

     
  13.  
  14. 15:01 13th Jul 2014

    Notes: 32

    Reblogged from buggirl

    image: Download

    buggirl:

Ant
Tiputini, Ecuador

    buggirl:

    Ant

    Tiputini, Ecuador

     
  15. 15:01 12th Jul 2014

    Notes: 127

    Reblogged from buggirl

    buggirl:

    Very cool wasp nest outside our cabin.  We had to walk by with caution- look at those girls guarding the entrance!

    Tiputini, Ecuador