Friday, October 14, 2016

Small Jumping Spiders

 
Small Jumping Spider, Photo Credit - Bug Geek
 
 
 
In September, I had a client who has a windbreak within 20 feet from the house.  The client keeps the trees well hydrated and has created an environment that spiders love.  Of course, August into September is a time for spiders to mate.  The windbreak consisted of blue spruces.  On this year's candle growth, the females had made thick silken webs called "pup tents".  Some sources say they make their silken webs under the bark of various trees.  These tents are for protection and a "den" for sleeping at night.
 
These jumping spiders, Salticidae , are named this literally because they jump on their prey.  They can jump 30 times their length.  Their eating habits extend further than other insects.  Nectar seems to also be part of their diet.  Small jumping spiders are very active hunters or diurnal. 
 
These spiders have well-developed internal hydralic system according to Wikipedia.  This system extends their limbs by altering the pressure of body fluid or hemolymph within them. Pretty amazing arachnid. 
 
When this spider prepares to jump, they have a silken tether which they remain attached to if the jump does not go well.  This tether takes them back to their starting point.  According to Wikipedia, the silken tether is impregnated with pheromones and is used for navigation, social and reproductive communication.  So they do not have "wireless" communication. 
 
For further information go to the following links:
 
 


No comments:

Post a Comment