You have to evolve a FEMALE burmy. Male Burmy will evolve into Mothim instead
Wormadon. Wormadon Is the number 46 on Pokemon diamon
You may need to find a trainer with a Wormadon to complete your Pokedex. You can find someone who uses them on Route 214.
20
If its a girl it will evolve at level 20 into a wormadon
It is wormadon evolve burmy to get it (it has three different formes)
A female trainer on the route south of veilstone city have three wormadam's from all cloaks.
Find Burmy first and hope its a female if so train it until it evolves it will become Wormadam.
you have to get a bu my first you have to get him by put ting honey on trees you will get him eventually and you have to wait until the tree starts to wiggle
Go to route 214,then go down where all of those other trainers are.Look for the beauty girl that's close to the physic guy.
Here's a whole list of the sinnoh pokedex: 1.turtwig 2.grotle 3.toterra 4.chimchar 5.moferno 6.infernape 7.piplup 8.prinplup 9.empoleon 10.starly 11.staravia 12.staraptor 13.bidoof 14.bibarel 15.kricketot 16.kricketune 17.shinx 18.luxio 19.luxray 20.abra 21.kadabra 22.alakazam 23.magikarp 24.gyarados 25.budew 26.roselia 27.roserade 28.zubat 29.golbat 30.crobat 31.geodude 32.graveler 33.golem 34.onix 35.steelix 36.cranidos 37.rampardos 38.shieldon 39.bastiodon 40.machop 41.machoke 42.machamp 43.psyduck 44.golduck 45.burmy 46.wormadon 47.mothim 48.wurmple 49.silcoon 50.beautifly 51.cascoon 52.dustox