Question

The left phallomere, a part of the external genitalia of male Periplaneta consists of which of the following sets of structures? 

(a) Titillator, phallic gland 

(b) Phallic gland, mushroom gland 

(c) Vasa deferentia, an ejaculatory duct 

(d) Titillator, pseudopenis

Answer 1

Answer is (d) Titillator, pseudopenis

The three phallomeres that constitute the external genitalia of Periplaneta are right, left and ventral phallomeres. The left phallomere consists of a curved hook called titillator, pseudopenis, aspirate lobe and inner acculobolus.