Three Mosquito Pools Test 'Positive' for WNV; Frisco to Spray Saturday, Sunday Nights. (August 12, 2016) The City of Frisco will spray for mosquitoes August 13 and 14 after receiving confirmation three additional mosquito pools tested âpositiveâ for West Nile virus (WNV). Read on...
Grasshoppers have large compound eyes and and have a board field of vision. Mouthparts-Mouthparts have evolved for special needs for different insects. They can chew, suck, pierce, lap, and sponge-up their food. Grasshopper has the most primitive type of mouthparts for chewing.
They also have: 1  Pharyngeal slits, which help to filter out food particles. 2  An endostyle, which has small hairs and is used to gather food particles and move them along the digestive tract. 3  A post-anal tail, which is present during the lifetimes of some chordates and during the development of others.