Roaches, definately roaches.
Saltboy,
I live on the west side of Houston (Katy, actually). Nice neighborhood, house is only 4 1/2 years old, have an exterminator over every three months and I still found a tree roach in the entry way to my house this morning. For those who don't know, tree roaches are the biggest in North America, I believe. 3-4 inches long, an inch or two wide and they can FLY!:Q