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Isabelle Vea
Works at Nagoya University
Lives in Nagoya
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Isabelle Vea

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Isabelle Vea

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Wow, nice scan...
 
The new species, which has been named Invavita piratica (meaning "ancient intruder" and "piracy"), belongs to a group of parasites known as tongue worms. It is the ancient ancestor of 140 species of modern-day parasites that live within the respiratory system of their host.

"In fact, it's not a worm," said Prof Siveter. "It belongs to the broad group of animals we call arthropods."


Researchers discover the 425-million-year-old remains of a new species of parasite - still clamped to the host animal it invaded.
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Isabelle Vea

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#cicada   #okinawa   #japan   #iriomote   #macrophotography  

Found this small cicada in Okinawa. I wonder what species it is...
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Did you take this picture? Amazing..
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Isabelle Vea

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Drosicha corpulenta is back!

For my first encounter with the giant scale insect last year see this post: https://plus.google.com/101335089852823765984/posts/CgJVKMgzxBp

After spending the whole summer and winter under the ground, the eggs laid last spring hatched in January and by February juveniles were slowly crawling out of the ground.

They are now feeding on the trunks of their favorite trees and while growing will slowly ascend to higher parts of the trees.

Here are two photos from this morning in Nagoya University campus. Second instar juveniles are crawling on the trees. We can even see the host tree trying to secrete some resin as a defense mechanism, but they are just too many!

#scaleinsects #Japan #spring #insects
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Isabelle Vea

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I want to look at this picture all day long
 
A case of aerial mustelid transport by a picid resulting from alleged attempted picidivory by a mustelid 
Unfortunately, the weasel was attacking the bird. Fortunately, the bird escaped.
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Isabelle Vea

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A poll of Americans revealed the youngest yearn for the jazz age of the 1920s http://econ.st/18tFFw1 #econarchive
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Isabelle Vea

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Artifical Chemotaxis

Something that explains the attraction found in drops of food colouring.

“ The critical fact was that food colouring is a two-component fluid. In such fluids, two different chemical compounds coexist while retaining separate molecular identities.

The droplets in this experiment consisted of two molecular compounds found naturally in food colouring: water and propylene glycol. The researchers discovered how the dynamic interactions of these two molecular components enabled inanimate droplets to mimic some of the behaviours of living cells.

This complex behavior is something called artificial chemotaxis which Manu Prakash explains in layman’s terms in the video below: 

https://www.youtube.com/watch?v=ZMsaH6SY4CY

The physical properties of these fluids give rise to this immense complexity of behavior. For example, chasing and sensing each other, and very much what we call artificial chemotaxis.

Chemotaxis is the idea in biology that one single cell can sense where its enemy is, and it brings up all its machinery, and it chases that enemy to try to eat it.”

Source & credit: http://goo.gl/s2MbG1 #scienceeveryday   #sciencesunday  
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Isabelle Vea

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Latest insect photos from France and the UK.

#macrophotography #entomology #macro #insects
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Isabelle Vea

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A good resource to support PhDs that decide to leave academia
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Wow incredible photo of emerging cicada! Good job +Kurt Orionmystery G!
 
A newly emerged cicada. Selangor, Malaysia.

Up close with the mini wildlife of Malaysia: http://orionmystery.blogspot.com 

#upclosewithnature   #orionmystery   #macroaddict   #macrophotography  
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Nice shot
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Isabelle Vea

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My Darwin tree for scale insects! #sciart #madewithpaper  

From top to bottom
- male scale insect inclusion in amber
- Ortheziidae
- Monophlebidae
- Coccidae
- left Pseudococcidae
- right Diaspididae

NB: not phylogenetically accurate
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Isabelle's Collections
Story
Tagline
In a quest to discover the mystery of sexual dimorphism in scale insects
Introduction

"Suivant Lampride, Martial & Pline l'ancien, le mot coccus signifioit la couleur rouge que nous appelons écarlatte, & la graine felon eux dont on tiroit cette couleur " Thiery de Menonville, 1787.

Bragging rights
I used to be scared of bugs, now I am an entomologist
Places
Map of the places this user has livedMap of the places this user has livedMap of the places this user has lived
Currently
Nagoya
Previously
New York City - Paris - Limoges - Chartres - Beijing
Work
Occupation
why male and female scale insects look so different
Employment
  • Nagoya University
    JSPS Postdoctoral fellow, 2013 - present
    Hormonal regulation in scale insect metamorphosis and sexual dimorphism
  • American Museum of Natural History
    Ph.D. student, 2009 - 2013
    Reconciling neontology and paleontology in scale insect systematics : http://goo.gl/Nj3bvg
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