Furthermore, the gut contents, wing structures, and mouthpart morphologies of fossilized beetles and flies suggest that they acted as early pollinators.    From Wordnik.com.  [Pollination] Reference

The new needle has an inner diameter of around 25 microns and an external diameter of 60 microns, which is about the same size as a mosquito's mouthpart.    From Wordnik.com.  [Boing Boing] Reference

Note here: what was present before Angiosperms was the basic conformation of the mouthpart classes, not the actual highly adapted, specialized apparatuses that are often currently found in existing species.    From Wordnik.com.  [Behe and bugs: Genesis of a Creationist canard? - The Panda's Thumb] Reference

The supposed “mystery” here is that a 1993 paper by Labandeira and Sepkoski showed that “by the middle Jurassic the earliest commonly accepted date for the origin of Angiosperms 65% (low estimate) to 88% (high estimate) of all modern insect mouthpart classes were present”.    From Wordnik.com.  [Behe and bugs: Genesis of a Creationist canard? - The Panda's Thumb] Reference

The mouthpart is adapted to pierce the skin of human and animals, since the flea is a external parasite.    From Wordnik.com.  [CreationWiki - Recent changes [en]] Reference

When the flea cuts the skin of animals of human, it uses laciniae which is attached to the flea's mouthpart.    From Wordnik.com.  [CreationWiki - Recent changes [en]] Reference

We review and analyse studies on morphological trait complementarity (e.g. floral tube length versus insect mouthpart length) at the population and species level.    From Wordnik.com.  [BioMed Central - Latest articles] Reference