Eurema simulatrix

The Changeable Grass Yellow (Eurema simulatrix) is a butterfly in the Pieridae family. It is found from Burma to Sundaland and the Philippines.^[2] The habitat consists of secondary or disturbed habitats including forest clearings, roadsides and riverbanks, parks and gardens.^[3]

The length of the forewings is 21–26 mm (0.83–1.0 in) for males and 19–25 mm (0.75–0.98 in) for females^[4]. Adults have two cell spots on the underside of the forewings and a large, almost cleft, reddish brown apical spot on the forewing.^[5]

Subspecies

The following subspecies are recognised:^[1]

• Eurema simulatrix simulatrix (Philippines: Mindanao)
• Eurema simulatrix princessae Morishita, 1973 (Palawan)
• Eurema simulatrix tecmessa (de Nicéville & Martin, [1896]) (southern Burma, Peninsular Malaya, southern Thailand, Singapore, Sumatra, Java, Borneo) – de Nicéville's Grass Yellow
• Eurema simulatrix sarinoides (Fruhstorfer, 1910) (Sikkim to Burma, northern Thailand, Laos) – Scarce Changeable Grass Yellow
• Eurema simulatrix littorea Morishita, 1968 (Langkawi)
• Eurema simulatrix inouei Shirôzu & Yata, 1973 (Thailand, Indo-China)
• Eurema simulatrix tiomanica Okubo, 1983 (Tioman)

Eurema irena is sometimes treated as a subspecies of Eurema simulatrix.

References