Related for Shabbat 242:6
תני תנא קמיה דרבא בר רב הונא ההורג נחשים ועקרבים בשבת אין רוח חסידים נוחה הימנו א"ל ואותן חסידים אין רוח חכמים נוחה מהם ופליגא דרב הונא דרב הונא חזייה לההוא גברא דקא קטיל זיבורא א"ל שלימתינהו לכולהו
AND OVER A SCORPION, THAT IT SHOULD NOT BITE. R. Joshua b. Levi said: All [animals, etc.] that cause injury<span class="x" onmousemove="('comment',' Rashi: that kill. ');"><sup>15</sup></span> may be killed on the Sabbath. R. Joseph objected: Five may be killed on the Sabbath, and these are they: the Egyptian fly, the hornet of Nineweh, the scorpion of Adiabene,<span class="x" onmousemove="('comment',' A district of Assyria between the rivers Lycus and Caprus. ');"><sup>16</sup></span> the snake in Palestine, and a mad dog anywhere. Now, who [is the authority?] Shall we say, R. Judah? Surely he maintains, One is guilty on account of a labour not required for itself?<span class="x" onmousemove="('comment',' Supra 12a, 31b; the present killing falls within the same category. ');"><sup>17</sup></span>