All About Arthropods Posted March 8, 2016 Report Share Posted March 8, 2016 Hi Everyone! I wanted to know if anyone has heard about yellowish-white liquid coming out of grapevine beetles' back side? I have two females and they both do that, just wanted to know if something was wrong with them or if it is normal. Thanks! Quote Link to comment Share on other sites More sharing options...
Beetle-Experience Posted March 8, 2016 Report Share Posted March 8, 2016 Sounds like frass, Phileurus valgus will do that a lot when you handle them too... Quote Link to comment Share on other sites More sharing options...
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