"Resin-gnat (Diplosis resinicola). a, adult female; b, wing of same; c, cross-section of antenna of female; d, same of male; e, section of pine twig showing work of larvae; f, same showing extruded pupa-cases; a, e, f, enlarged; b, c, d, still more enlarged." -Whitney, 1911

Resin Gnat

"Resin-gnat (Diplosis resinicola). a, adult female; b, wing of same; c, cross-section of antenna…