---

All your photos are Chironomidae.

Chaoborus has more wing veins.

Females of the common species of Chironomidae have fewer segments in the flagellum (5-6 compared to more than 10). The last two photos are exceptions to the second rule --Ablabesmyia and Procladius in subfamily Tanypodinae.

Males can also be distinguished by antennae and genitalia. Males have distinct rings of hairs and longer genitalia with a slender dististyle.