The main insect (a chironomid) resembles a mosquito in appearance but lacks a proboscis and was not blood sucking. However there seems to be an actual mosquito within the amber as well!
Geological studies have Dominican amber to be between 17 and 20 million years old!
The piece itself weighs 2.0 grams and has approximate dimensions of 2.3 cm length, 1.8 cm width, and 0.4 cm height. NOTE: 2.5 cm is approximately 1 inch. This polished piece is from rough amber originating from the Dominican Republic.