Does the degree of the victim's sentience correlate with the kamma associated with killing it?

> "One should not kill a living being, nor cause it to be killed, nor should one incite another to kill. Do not injure any being, either strong or weak, in the world. > Sutta Nipāta 2.396" Is there more negative kamma associated with killing a biting insect than with killing a more sentient animal like a sparrow or mole? For instance, do I incur more negative kamma by swatting a mosquito that is sucking my blood than if I kill a more sentient and less troublesome squirrel that is raiding my garden?