Bug with blue blood?

Question

OK THIS IS WEIRD .... I was just going to turn my AC on and on the vent was a BIg but umm about and inch long and about half and inch wide and ways i didnt think twice but i squashed it and the SOB had blu blood! ... it was brown on the out side and what looked to be a horn ... at the nose . any suggestions????? thank you

Answer 1

Can't help with the I.D but blue blood is not unusual for insects and spiders. They have copper in their haemoglobin (or haemoglobin equivalent) which turns blue when combined with oxygen. Mammals and birds have iron based haemoglobin which produces the red colour.