#Arachtober 26: sometimes on a whim you look inside a hole in a railing…
#ArthroBeauty #DailySpiderPic #spiders #Araneae #Clubionidae
found another pair of mating leaf-curling sac spiders (family Clubionidae)!
The bubble-like thing in the first picture is the haematodocha, a sac in the male's palpal bulb that inflates to change the orientation/shape of the pedipalp to allow it to lock in to the female's convoluted genital opening.
#DailySpiderPic #SpiderSunday #spiders #SpiderSex #Araneae #Clubionidae
Here's a short clip of the haematodocha deflating and inflating, using the hydraulic pressure of haemolymph (arthropod "blood"). Uh, NSFW unless you're an arachnologist I guess
#DailySpiderVid #SpidersOfMastodon #SpiderSex #spiders #Araneae #Clubionidae
A pair of mating leaf-curling sac spiders (_Clubiona_) from last night!
The male is reaching his left pedipalp underneath the female to transfer sperm to the corresponding reproductive opening (she has one on each side). The pale balloon-like structure visible in the last photo is one of the haematodochae on the pedipalp. The haematodocha is an inflatable sac or membrane that rotates various bits of the palpal bulb so it can kind of lock in. Video in next post.
#DailySpiderPic #SpidersOfMastodon #SpiderSex #spiders #Araneae #Clubionidae
#Arachtober 27: have I done a _Clubiona_ yet this month? These sleek, stealthy spiders, about a centimetre long, can be found prowling around after dark. The ones I see range in colour from fawn to dark red-brown, and the chelicerae are always dark.
#DailySpiderPic #SpidersOfMastodon #spiders • #Araneae #Clubionidae
Der Fundort dieser Sackspinne deutet auf die Sumpfsackspinne (Clubiona cf. stagnatilis) hin wobei es eine Reihe ähnlicher Arten gibt, die ich nicht auseinanderhalten kann.
#Spinnen #spiders #arachnidae #spider #Araneidae #Sackspinnen #Clubionidae #nature #artenvielfalt #natur
#DailySpiderPic × #bloomscrolling: when night falls, the spiders come out. A silky-looking leaf-curling sac spider (family Clubionidae) prowls stealthily across a pink petunia in a decorative planter.
neville park
Axel Steiner