Gall-inducing insect Gall-inducing insect A gall-inducing insect is any insect that can cause the growth of galls within plants. The term gall fly is also used to cover these species, although most are not true flies. There are several groups of insects that meet this description. They include the gall wasps, scales, gall midges, aphids, psyllids and certain species of leafminer flies. Galls are growth deformities induced in certain plants by various insects which are mostly species-specific. The gall's form or type depends on what organism is attacking the plant and where the plant is being attacked. Based on the form, there
Velvet painting of Los Angeles, Calif. Velvet painting A velvet painting is a type of painting distinguished by the use of velvet (usually black velvet) as the support, in place of canvas, paper, or similar materials. The velvet provides an especially dark background against which colors stand out brightly. Velvet painting is an ancient technique, and took on a new popularity in the United States in the late 20th century. Black velvet paintings originated in Kashmir, the homeland of the fabric. These original paintings were generally religious and portrayed the icons of the Caucasus region which were painted by Russian Orthodox priests.