| The male palpi are long, with large tarsi and palpal organs and a long hook on the outer side of the tarsus. |
| In successful matings, the time of the first palpal insertion and which palp was inserted were noted. |
| The number of maxillary palpal joints usually is five but varies between two and six. |
| The palpal organs and male palpi are of great variety and distinguish the males of all species without much difficulty. |
| And if you're more interested in how arachnids do it with palpal specializations than molluscan harpoons, I've got an article on how spiders mate. |
| The palpal organ has two appendages at the end, one hard and roughened and the other soft. |
