The scrub house has roaches, too. The usual species of roaches, American cockroach, Oriental cockroach and wood roach are there, but there's another that is unique to this place.
It is the Sand Cockroach, a thin insect that can wedge itself easily among the sand grains. I saw one recently flying at dusk, perhaps in search of a female. Females are flightless, so must wait for gentlemen callers to reproduce.
The immatures look odd, spotted and wingless. Another adaptation for scrub life, perhaps.
