Istelma

Istelma is a genus of moths in the family Geometridae. These moths are characterized by their intricate wing patterns, which often serve as camouflage against their natural environments. The genus is primarily found in the Palearctic and Indomalayan realms, with various species inhabiting a range of habitats from forests to grasslands.

The larval stage of Istelma moths, like other geometrids, often exhibits a "inchworm" or "looper" locomotion due to the absence of prolegs in the middle of their bodies. These larvae feed on a variety of plants, and their specific host plant preferences can vary significantly between species. Adult Istelma moths are typically nocturnal or crepuscular, meaning they are most active during the night or twilight hours. Their diet as adults generally consists of nectar from flowering plants.

Research on Istelma species often focuses on their ecological roles, including their interactions with host plants and their position within food webs. Due to their diverse geographical distribution, studies may also explore genetic variations and evolutionary relationships among different populations. The precise number of recognized Istelma species can fluctuate as new discoveries are made and taxonomic revisions occur.