Male palp

Number of embolus coils:

Bishopi and variolus: 2

Mactans: 3

Geometricus: 4

Hesperus: varies

Character of embolus in males:

Levi found, that to some extent at least, the character of the embolus could be used to separate species. In L. variolas it is wider than, and about three-fourths as long as, in L. mactans. It makes two coils in L. variolus, but three in L. mactans. Moreover, the coils are tighter and less open in L. variolus than in L. mactans. In the type male of L. hesperus, the embolus shows two coils (as in the "curacaviensis group") though it appears longer than in L. variolus, as the coils are more open. However, the coils are tighter and less open than in L. mactans. But there is much variation among the many specimens of L. hesperus that have been studied.

Male palp of L. hesperus:

Opening of the embolus tip. Opening has a maximum diameter of approximately 6mm:

Broken embolus (emboli are broken off many times when insertion into female):

Then, when they break off, you can see them in the female's epigynum!:

Oftentimes, males will reload their palps with a fresh batch of sperm after mating with a female. Here are a few pictures showing that: