- resin gnat
- noun
or resin midge
: any of various small two-winged flies (genus Retinodiplosis) with larvae that injure pine trees by causing an exudation of resin in which they live
* * *
resin gnat,a small dipterous insect whose larvae live in exuding masses of resin on pine trees and feed on the abraded bark.
Useful english dictionary. 2012.