这是什么虫吃的？

房子deck上，图2是靠近deck board 的 rail 背面被吃的虫眼，图1是被吃虫眼的排泄物。

所有跟帖： 

• not termite, maybe beetle? (天牛？） -Noahh- ♂ (0 bytes) () 07/02/2019 postreply 18:30:29

• 刚狗了，像是Carpenter bees? -小油菜- ♀ (0 bytes) () 07/02/2019 postreply 18:35:56

• seems you are right. -Noahh- ♂ (0 bytes) () 07/02/2019 postreply 18:40:48

• injection of some pesticide should kill it. -Noahh- ♂ (0 bytes) () 07/02/2019 postreply 18:36:07

• looks like carpenter bee -famer- ♂ (0 bytes) () 07/02/2019 postreply 18:37:22

• It the wood treated? Seems too delicious to the insects -bashfulx- ♂ (0 bytes) () 07/02/2019 postreply 20:54:39