Insects have moth pros and cons

code/modules/clothing/clothing.dm

@@ -75,6 +75,7 @@
 	desc = "If you're reading this it means I messed up. This is related to moths eating clothes and I didn't know a better way to do it than making a new food object."
 	list_reagents = list("nutriment" = 1)
 	tastes = list("dust" = 1, "lint" = 1)
+	foodtype = CLOTH
 
 /obj/item/clothing/attack(mob/M, mob/user, def_zone)
 	if(user.a_intent != INTENT_HARM && ismoth(M))

code/modules/mob/living/carbon/human/species.dm

@@ -1179,7 +1179,10 @@ GLOBAL_LIST_EMPTY(roundstart_races)
 /datum/species/proc/check_weakness(obj/item, mob/living/attacker)
 	return FALSE
 
-////////
+/datum/species/proc/check_species_weakness(obj/item, mob/living/attacker)
+	return 0 //This is not a boolean, it's the multiplier for the damage that the user takes from the item.It is added onto the check_weakness value of the mob, and then the force of the item is multiplied by this value
+
+	////////
 	//LIFE//
 	////////
 

code/modules/mob/living/carbon/human/species_types/mothmen.dm

@@ -11,7 +11,7 @@
 	attack_sound = 'sound/weapons/slash.ogg'
 	miss_sound = 'sound/weapons/slashmiss.ogg'
 	meat = /obj/item/reagent_containers/food/snacks/meat/slab/human/mutant/moth
-	liked_food = VEGETABLES | DAIRY
+	liked_food = VEGETABLES | DAIRY| CLOTH
 	disliked_food = FRUIT | GROSS
 	toxic_food = MEAT | RAW
 
@@ -43,18 +43,19 @@
 
 /datum/species/moth/handle_chemicals(datum/reagent/chem, mob/living/carbon/human/H)
 	. = ..()
-	if(chem.id == "pestkiller")
+	if(chem.type == /datum/reagent/toxin/pestkiller)
 		H.adjustToxLoss(3)
-		H.reagents.remove_reagent(chem.id, REAGENTS_METABOLISM)
+		H.reagents.remove_reagent(chem.type, REAGENTS_METABOLISM)
 
-/datum/species/moth/check_weakness(obj/item/weapon, mob/living/attacker)
+/datum/species/moth/check_species_weakness(obj/item/weapon, mob/living/attacker)
 	if(istype(weapon, /obj/item/melee/flyswatter))
 		return 9 //flyswatters deal 10x damage to moths
 	return 0
 
+
 /datum/species/moth/space_move(mob/living/carbon/human/H)
 	. = ..()
 	if(H.loc && !isspaceturf(H.loc) && H.dna.features["moth_wings"] != "Burnt Off")
 		var/datum/gas_mixture/current = H.loc.return_air()
 		if(current && (current.return_pressure() >= ONE_ATMOSPHERE*0.85)) //as long as there's reasonable pressure and no gravity, flight is possible
-			return TRUE
+			return TRUE