Scorpion. Scorpions sting themselves.
Scorpions have an oil which is a remedy for their stings.
’Tis true the scorpion’s oil is said
To cure the wound the venom made.
S. Butler, Hudibras, iii. 2 (1678).
Spider. It is unlucky to kill a moneyspinner.
Small spiders, called “money-spinners,” prognosticate good luck, if they are not destroyed or removed from the person on whom they attach themselves.--Park.
The bite of a spider is venomous.
No spider will spin its web on an Irish oak.
Spiders will never set their webs on a cedar roof.--Caughey, Letters (1845).