Not every species: no complete official list of Michigan insects exists, so this page covers the ones state and Extension sources name. How lists are built.
Which insects can hurt you
Official sources single out these insects in Michigan, in their own words:
Mosquitoes (vectors of eastern equine encephalitis and West Nile virus)
Stings when its nest is disturbed. “Because some people do have very serious allergic reactions to stings, those nests need to be removed.” Michigan Department of Natural Resources
“EEE is one of the most dangerous mosquito-borne diseases in the United States, with a 33% fatality rate in people who become ill”
“We urge Michiganders to take precautions such as using an EPA-registered insect repellent when outdoors, avoiding areas where mosquitoes are present if possible, and wearing clothing to cover arms and legs to prevent bites.”
Tick Borne Illnesses in Michigan (MSU Extension Bulletin E-2765). Michigan Department of Community Health; Michigan Department of Natural Resources; Michigan Department of Agriculture; Michigan State University Extension. Issued 2001; checked November 3, 2026.Quoted passages (1)
“…variabilis ticks (commonly called wood ticks or dog ticks) are most abundant in spring and early summer. Ixodes scapularis, (Black Legged ticks) are most abundant from spring through the summer, and into the warm months of the fall.”