Can you please identify this mosquito-like insect?
It is most certainly a fly from Chironomidae, which belongs to the same suborder (Nematocera) as Mosquitoes (Culicidae). They have an overall resemblance to mosquitoes, but lack the large sucking mouthparts, and often have the large feathery antenna that are seen in your pictures. Some species are found in large swarms in early spring (but also later in the summer). Larvae can be found in most freshwater, and are called bloodworms due to red colour (high in hemoglobin, adapted to live in oxygen-poor sediment environments)
I doubt that the exact species can be determined from these pictures though.