There are many “firsts” this time of the year! Here are the first flies of the year as well –
The first picture shows a Flesh fly (Sarcophagidae) sunbathing on a staircase. Flesh flies look a lot like house flies, but are generally larger. They are gray, have a checkerboard pattern on the top of their abdomen, three black stripes running along the top surface of their thorax just behind the head, while house flies have four, and sometimes a reddish-brown tip at the end of the abdomen.
The second picture shows a Yellow dung fly (Scathophaga stercoraria), or – if you want to make the name sound a bit nicer, which could be a challenge for a dung fly – also known as Golden dung fly. I think it’s a female as she has a more of a green tone to her rather than yellow. These flies are very important in the scientific world due to their short life cycles and susceptibility to experimental manipulations, thus have contributed significant knowledge about animal behavior.