It appears it may be a Nysius Raphanus (false chinch bug).
Quoting from [wikipedia](https://en.wikipedia.org/wiki/Nysius_raphanus):
> Nysius Raphanus (false chinch bug) are a small North American insect, no larger than 1/8th inch (3.175mm). They are often grey to brown in color, with largely transparent wings, and can release an offensive odor similar to stinkbugs. They have no larval stage, instead going through several nymph stages with the nymphs resembling adults but having no wings. In high numbers false chinch bugs can cause significant plant damage. 

[![https://inaturalist-open-data.s3.amazonaws.com/photos/2761915/original.jpg][1]][1]

[![enter image description here][2]][2]

source: https://entnemdept.ufl.edu/creatures/ORN/TURF/false_chinch_bug.html


  [1]: https://i.sstatic.net/VQfve.jpg
  [2]: https://i.sstatic.net/rMB23.jpg