Costantino Ribaga

Costantino Ribaga (14 June 1870 – 20 February 1945) was an Italian acarologist and entomologist. He worked on the systematics of mites and psocoptera and contributed to biological control techniques. He described an organ in the female bed bug which is known as the organ of ribaga. Ribaga's organ also known as the paragenital sinus is located on the underside of the fourth abdominal segment into which the male bedbug traumatically inseminates the female.