How do caddisflies contact with mates?

Answer:
The mating behavior of most caddisflies is unknown. The few caddisflies we have information about are day fliers, with complex courtship behaviors. There is evidence to suggest pheromones play a role. Cuticular hydrocarbons differ significantly between species so tactile sensation may play a role as well.

Any new information would be helpful to understanding this group, more than the nearly nothing we have now.
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