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[hianghao]

In lab, we rear our lab-strain Aedes mosquito by letting them oviposit on wet filter paper, and we have done it for more than 3 decades. However, when i collected a wild strain of Aedes albopictus from the field, i found that i just wont lay eggs on wet filter paper. Instead, they only lay eggs on wooden paddle soaked in water (Which is the conventional way to collect eggs from wild Aedes mosquito). I've reared this strain in lab for 8 generation, using the latter method, and its inconvenient compare with the conventional method.
I cant find any literature on this phenomenon.
Is there a way to change its ovipositing behaviour? And is there any experiment available to verify whether this behaviour is genetically-determined?