So we have some interesting looking insect. It’s got a very round body with some black on light brown, long legs, and wings with lots of black along the front. It’s on an oak leaf, so we can see that it’s fairly small but not a tiny insect.
Although there’s quite a few insects that look somewhat like this, I’m not about to go through them all. This is a Bee Fly in the family Bombyliidae. With about 800 species in North America, there’s a lot to filter through. Fortunately this one has a very distinct wing pattern. It’s the Greater Bee Fly (Bombylius major).
These happen to be extremely common in early spring around here. For more information, see bugguide.