You guys have to look at the order of the type. Hawlucha is Fighting/Flying, so Type 1 is Fighting and Type 2 is Flying. There is one Pokemon for Fighting/Flying in the chart and there also are mutliple Pokemon for Normal/Flying, just not the other way around.
Except English is probably the only language to connect dragons and dragonflies, so it'd make as much sense to everyone else as Bug/Fire, etc. --- XY Battle Maison/Institute Trainer Dialogue editable spreadsheet: http://tiny.cc/i0ibbx