Scorpions

^JP I IK 9 FAMILIES AND 1,400 species __ of the order Scorpioncs make up the most ancient group of all arachnids.

The ccphalothorax carries four pairs of walking legs and large pedipalps with a pincerlike claw. There is a main pair of eyes situated centrally on the head and a variable number of pairs on the sides. The last segment of the mobile "tail" (telson) bears the sting and its poison gland, used to paralyze prey and for defense. The sting of some scorpions can be fatal to humans. Reproduction starts with complex courtship. After this, males deposit sperm on the ground that is picked up by the females' genitalia. Females bear live young that are carried on the mother's back until their first molt. Scorpions favor warm areas and hunt at night, hiding under stones by day.

CKNTROMACHPTES POCOCKI is one of three very similar Chilean species. It preys on field crickets and will also eat caterpillars.

short, stout claws

slender céphalothorax dark brown body

0rder Scorpioni:s

Family BOTHRIIJRIDAK

Feeding habits

BOTHRIl JRIDS

1 hese scorpions have a narrow ccphalothorax. I nlikc the members of some other scorpion families, their tibiae do not have spurs.

• LlP I CYCLE Courtship can be lengthy and may involve stinging. As in all scorpions, eggs hatch out inside the females body. The young arc born live and climb on to their mother's back.

• occurrence South America, Australia, Africa, and the I limalayas. In dry and humid areas, often in burrows dug under stones and boulders.

CKNTROMACHPTES POCOCKI is one of three very similar Chilean species. It preys on field crickets and will also eat caterpillars.

short, stout claws slender céphalothorax dark brown body

No. of species t^O

rows of small, dark bumps along tad

BlJTHl S OCCITAN IJ S, common across the Mediterranean, is found on the ground, under rocks and logs.

with dark teeth

0rder Scorpion ks

Family BlJTHIDAK

No. of species t^O

0 0

Post a comment