martedì 3 febbraio 2009

Araneidae, Nephilinae, Nephila clavipes

Esta preciosa araña muy comùn en casi todo el
continente americano, se encuentra principalmente
en lugares muy humedos y frescos, sobre todo
en las montañas. El dimorfismo  sexual es muy marcado,
las hembras alcanzan una longitud corporal de 35mm
y los machos solo 6-7mm.
Sus telas son muy amplias llegando a medir hasta un
metro de diametro. Sobre sus telas frecuentemente
se encuentran como huespedes otras arañas llamadas
cleptoparàsitas, se alimentan de los restos de sus
victimas sin ser detectadas. Estas oportunistas
pertenecen a la familia Theridiidae y su nombre es
Argyrodes nephilae, una de ellas es visible en la primera
imagen, es de color plateado.
During copulation...

Immature Female
Male

lunedì 2 febbraio 2009

Dipluridae, Ischnothele garcia

A beautiful specimen from the family Dipluridae.
They are difficult to find among the forest.
They are very fast and makes big funnel webs
at the base of trees or between rocks, in the dry south-west region.
Females reach 16mm and males 12mm.

Araneidae, Argiope species.

Widespread throughout the island, mostly near the coastal areas.
The web construction have a structure in the center
named Stabilimenta, the immatures makes it like a spiral,
while the adults make an X shaped and the A. trifasciata
make a vertical line.

Argiope florida
Female


Argiope argentata

Female

Argiope trifasciata
Female
Male
    



Theraphosidae, Cyrtopholis cursor

Theraphosidae
Subfamily: Theraphosinae

This is a burrowing tarantula, they can dig more than 30cm deep.
The size of the female is 50mm and the male 30mm.
Normally their are very aggressive and people believe
that they can kill. I have been bitten once, it was like a
bee sting and one hour later the venom effect disappear.

Male
Females
    

Tetragnathidae, Alcimosphenus licinus

This beautiful spider can be found among low bushes,
in shady areas with high humidity.
The female can reach 11 mm and the male 8.


This one have parasites.

domenica 1 febbraio 2009