<< Previous Next >>

Thomisus onustus


Thomisus onustus
Photo Information
Copyright: Nikos Roditakis (NikosR) Gold Star Critiquer/Gold Note Writer [C: 76 W: 3 N: 447] (3436)
Genre: Animals
Medium: Color
Date Taken: 2014-08-03
Categories: Spiders
Camera: Olympus mini E-PM1, 60mm Olympus Zuiko
Exposure: f/6.3, 1/160 seconds
Details: (Fill) Flash: Yes
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2014-09-03 1:50
Viewed: 999
Points: 10
[Note Guidelines] Photographer's Note
Thomisus onustus Walckenaer, 1805
Arachnida: Thomisidae

Thomisus onustus is a very common Crab spider of cretan fauna. It shows an extreme sexual dimorphism both in size and coloration, also in comparison with othe crab spiders. Here it is a female (6mm long). Males are much more small about half in size (2-4mm).Its the basic colour of the prosoma varies from yellow brown to dark brown, the opisthosoma may be yellow and green or brown. Also females are very variable in colour, their basic colour can be white, yellow or pink.

As a matter of fact these crab-spiders hide themselves adapting the colour of their body to the colour of the flowers on which they are waiting for preys, a behaviour that conceal them from predators and from the pollinating insects.

Like other species of the family Thomisidae these crab spiders do not make a web, but actively pursue their preys. They usually wait for preys positioned for hunting on flowers. The spiders are disguised by assuming the same colour as the flower, fooling both insect and bird predators. The prey consists of flower-visiting insects of all species, such as hover flies, bees, wasps, butterflies or beetles, which are often several times larger than the spider. They take their preys with two powerful and highly enlarged front leg pairs and usually kill them by biting on the back of their neck. Emerging spiderlings of Thomisus onustus may feed on pollen or nectar when insect preys are lacking. (Source Wikipedia).

Hotelcalifornia has marked this note useful
Only registered TrekNature members may rate photo notes.
Add Critique [Critiquing Guidelines] 
Only registered TrekNature members may write critiques.
Discussions
ThreadThread Starter Messages Updated
To nanreh: Thanks for commentsNikosR 1 09-03 07:35
To Hotelcalifornia: Thanks for comments and suggestionsNikosR 1 09-03 07:33
You must be logged in to start a discussion.

Critiques [Translate]

Hello Nikos-Useful NOTE on a species of Crab(Please 'C' in place of 'g')spider.Very well captured with splendid colour and details.Nice light too.Regards and thanks for sharing-Srikumar

Bellísima composición, gran macro, amigo Nikos.

Hernán

Ciao Nikos, great capture of fantastic crab spider, splendid sharpness, fine details and wonderful colors, very well done, my friend, ciao Silvio

hallo Nikos
beautiful crabspider with nice painting on his body and beautiful colours
thanks gr lou

  • Great 
  • anel Gold Star Critiquer/Gold Note Writer [C: 3053 W: 3 N: 8715] (40574)
  • [2014-09-05 10:21]

Hello Nikos,
Very colorful and impressive pose of this crab-spider, the picture almost looks like a painting.
Well done.
Anne

Calibration Check
















0123456789ABCDEF