Gnats and Mosquitos

Question 1

• Gnat
• Eggs require swiftly flowing water
• Scissor-like mouthparts lacerate tissue to form blood pool for feeding–> painful bites, annoyance–> decreased production

Answer 1

Simulium spp

• Black flies
• Buffalo gnats

Question 2

• Gnat
• Painful bites–> annoyance
• Sweet itch = allergic dermatitis in horses(seasonal with midges): papules, allopecia, pruritis–> scratching and rolling–> may lead to secondary infection
• Transmits bluetongue virus

Answer 2

Culicoides spp

-No-see-ums

Question 3

• Mosquito

- Transmit eastern and western equine encephalitis virus, west nile virus

Answer 3

Anopheles spp, Aedes spp, Culex spp

-Mosquitos