measures its journey. The caterpillars are accordingly called "loopers", "spanworms", or "inchworms" after their characteristic looping gait. The cabbage...

Operophtera bruceata, the Bruce spanworm, hunter's moth, or native winter moth is a moth of the family Geometridae. The species was first described by...

Melanchroia chephise, the white-tipped black or snowbush spanworm, is a moth of the family Geometridae. It is found from Florida and Texas, south to Paraguay...

Ematurga amitaria, the cranberry spanworm moth, is a moth in the family Geometridae described by Achille Guenée in 1858. It is found in North America....

winter moth can be confused with the related native species, the Bruce spanworm (Operophtera bruceata). In fact, the two species hybridize. It is native...

Ennomos magnaria, the maple spanworm moth, notched wing moth, notched-wing geometer or notch-wing moth, is a moth of the family Geometridae. The species...

Ennomos subsignaria, the elm spanworm moth, is a moth of the family Geometridae. The species was first described by Jacob Hübner in 1823. It is found in...

Ametris nitocris, the seagrape spanworm moth, is a moth of the family Geometridae. The species was first described by Pieter Cramer in 1780. It is found...

Prochoerodes lineola, the large maple spanworm, is a moth of the family Geometridae. It is found from Nova Scotia to Florida, west to Texas and north to...

Lycia ursaria, the stout spanworm moth or bear, is a moth of the family Geometridae. The species was first described by Francis Walker in 1860. It is found...