Key to female genitalia
A. Ductus bursae without a densely spiculate section and without a long sclerotised section of ductus bursae
The ductus bursae has a densely spiculate section and/or a long sclerotised section in all remaining species
The ductus bursae contains only a thorn-like signum in all remaining species
H. Ductus bursae with a spiculate section of medium length
(>4x its diameter, clearly <½ length of ductus bursae)
Many of these species also have a patch of diffuse spiculation midway along the ductus bursae
(>4x its diameter, clearly <½ length of ductus bursae)
Many of these species also have a patch of diffuse spiculation midway along the ductus bursae