Wiring member and method of manufacturing wiring member

A wiring member, comprising:

• a base member including a support surface;
• a first wire-like transmission member group including a plurality of first wire-like transmission members;
• and
• a second wire-like transmission member group including a plurality of second wire-like transmission members, wherein
• the first wire-like transmission member group includes a first parallel section in which the plurality of first wire-like transmission members are fused in a parallel state to the support surface,
• the second wire-like transmission member group includes a second parallel section in which the plurality of second wire-like transmission members are fused in a parallel state to the support surface in a position adjacent to the first parallel section,
• an interval between the first parallel section and the second parallel section is larger than an interval between the first wire-like transmission members in the first parallel section and an interval between the second wire-like transmission members in the second parallel section,
• a thickness of each of the first wire-like transmission members and a thickness of each of the second wire-like transmission members are different from each other, and
• the first wire-like transmission members have a uniformed thickness and the second wire-like transmission members have a uniformed thickness that is different from the uniformed thickness of the first wire-like transmission members.