can't delete partition (disk0s2) - OSX seems to be in the wrong volume (disk1)

hi guys! hope y'all are doing fine these crazy times.

going straight to the point,

[...]

i CAN NOT DELETE a partition.

disk utility:

"only can combine this partition with one that comes before her"

(msg is something like it, sorry my OS is not in english)

IT SEEMS to me that

 dev/disk0s2 & dev/disk1

are in INVERTED PLACES...

i leave the terminal description:

Muris-MacBook-Air:~ cunha$ diskutil list

/dev/disk0

  #:            TYPE NAME          SIZE    IDENTIFIER

  0:   GUID_partition_scheme            *121.3 GB  disk0

  1:            EFI EFI           314.6 MB  disk0s1

  2:         Apple_HFS DELETE         63.6 GB  disk0s2 (What i see as the partition i want to delete)

  3:     Apple_CoreStorage             56.1 GB  disk0s3

  4:         Apple_Boot Recovery HD       650.0 MB  disk0s4

/dev/disk1

  #:            TYPE NAME          SIZE    IDENTIFIER

  0:         Apple_HFS Yosimite        *55.7 GB  disk1(what i see as my system partition)

                 Logical Volume on disk0s3

                 A41BB8CF-5FAE-4388-B986-C47FE08F8612

                 Unencrypted

hope i find a kind person that can help me here, i'm in hurry with this Houston.

i thank u in advance,

murimorello