Thanks for the help, Dangerousdan. It is tough to tell, but I'm pretty sure she is a lorteti. She is a lot more greenish brown than the yellow in the photos on that site. She seems to have a horizontal bar marking across the top of her head which is also apparent in the lorteti photo.
There does not appear to be any further accumulation of sludge on the glass today. I will continue monitoring it.
There does not appear to be any further accumulation of sludge on the glass today. I will continue monitoring it.