Butterflies’ tidy drinking tricks
The long tube of the insects' mouthparts is fluid friendly only at the tip
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2013/06/sm_proboscis_feat.jpg?fit=860%2C460&ssl=1)
SIPPY WHEN WET The magnified tip of a Limenitis archippus butterfly mouthpart shows bowling-pin-shaped sensory structures that help the insect sip.
Matthew S. Lehnert and Catherine P. Mulvane