Onc. Twinkle and Gold Dust not flowering

[estación seca]

Your threats outside probably won't be bugs, rather birds and squirrels. Spider mites are everywhere but typically attack during times of warmth, sun and low humidity. That occurs occasionally in Seattle.

Edit: Another thought. It makes sense to grow plants suited to our environment. There are lots of orchids that enjoy maximum temperatures of 70 F. Have a look at Miltoniopsis, Zygopetalum, Odontoglossum (now lumped into Oncidium but still often sold under the old name), Masdevallia, Dracula, and various species in the Pleurothallid tribe, like Pleurothallis, Stelis, Lepanthes. Many very large and widespread genera have high elevation species that like cooler temperatures. Look at Den. cuthbertsonii and its hybrids. Intergeneric Oncidium hybrids do well at those temperatures, especially those with cool growing ancestors like Wilsonara and Vuylstekeara. Many Oncidium species should do well for you.

You've mastered growing Phals. at quite low temperatures. That means you've learned not to water too much. Most cool growing orchids will need more water than your Phals. need.

Join your local orchid society. They can help a lot.