The ectospermalege (inverted V-shape) is an extragenital cuticular structure only on the right side of female. By channelling the male paramere to this part of the abdomen it limits the damage done. Ventral view. Horizontal bar is 5 mm. Internally the female has a mesospermalege that receives sperm and has a presumed function in the immune responses of the female.
Haynes et al. BMC Biology 2010 8:117 doi:10.1186/1741-7007-8-117