Concerning the Eratigena atrica group - which stage is shown and which filaments are produced by the different spinnerets?

Image 1 and 2 show the juvenile spider from a dorsal and ventral view. What is the stage? Is it sub-sub-adult? length 7mm. Image 3 shows the the 3x2 different spinnerets. What are the functions...

15 March 2018 3,624 1 View