Did they give birth?

Last night was a little different from other nights we've spent here in Thailand.  Something crazy happened:  there were suddenly hundreds, if not thousands, of moth-like insects swarming lights everywhere.  As Leah and I were buying smoothies last night at the park, we were shocked to see so many insects flocking around each booth.  We wondered where they came from, their appearance was so sudden.  Did they give birth?  We considered that a possibility.

But the situation worsened when we went back home and flipped the switch for the lights.  The same insects came alive in the house!  It was a great terror for us to realize these mysterious insects were in our house!! We devised a plan for them to leave the house by leaving the main hall light on, it seemed to work for the most part.  But how did they get in our house??  That's the question.  As we were sweeping up the remains, which remind me of cicadas because they leave a weird shell-like or wing-like substance behind, we noticed most were near our windows.  We'll have to keep our windows more sealed.  I hope this doesn't happen again.  But then again, don't I realize I'm in Thailand where the bugs are extra large and overpopulated?  I should by now!