''Eurema simulatrix'', the changeable grass yellow, is a

butterfly Butterflies are insects in the macrolepidopteran clade Rhopalocera from the Order (biology), order Lepidoptera, which also includes moths. Adult butterflies have large, often brightly coloured wings, and conspicuous, fluttering flight. The ...

in the family

Pieridae The Pieridae are a large family of butterflies with about 76 genera containing about 1,100 species, mostly from tropical Africa and tropical Asia with some varieties in the more northern regions of North America and Eurasia.DeVries P. J. in Levi ...

. It is found from

Burma Myanmar, ; UK pronunciations: US pronunciations incl. . Note: Wikipedia's IPA conventions require indicating /r/ even in British English although only some British English speakers pronounce r at the end of syllables. As John Wells explai ...

Sundaland Sundaland (also called Sundaica or the Sundaic region) is a biogeographical region of South-eastern Asia corresponding to a larger landmass that was exposed throughout the last 2.6 million years during periods when sea levels were lower. It ...

Cambodia Cambodia (; also Kampuchea ; km, កម្ពុជា, UNGEGN: ), officially the Kingdom of Cambodia, is a country located in the southern portion of the Indochinese Peninsula in Southeast Asia, spanning an area of , bordered by Thailand t ...

and the

Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...

.The butterflies of Sulawesi: annotated checklist for a critical island fauna
/ref> The habitat consists of secondary or disturbed habitats including forest clearings, roadsides and riverbanks, parks and gardens.
/ref> The length of the forewings is for males and for females. Adults have two cell spots on the underside of the forewings and a large, almost cleft, reddish-brown apical spot on the forewing.

Subspecies

The following

subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...

are recognised: *''E. s. simulatrix'' (Philippines: Mindanao) *''E. s. princessae'' Morishita, 1973 (Palawan) *''E. s. tecmessa'' (de Nicéville & Martin,

896 __NOTOC__ Year 896 ( DCCCXCVI) was a leap year starting on Thursday (link will display the full calendar) of the Julian calendar. Events By place Europe * February – King Arnulf of Carinthia invades Italy at the head of an East F ...

(southern Burma, Peninsular Malaya, southern Thailand, Singapore, Sumatra, Java, Borneo) – de Nicéville's grass yellow *''E. s. sarinoides'' (Fruhstorfer, 1910) (Sikkim to Burma, northern Thailand, Laos) – scarce changeable grass yellow *''E. s. littorea'' Morishita, 1968 (Langkawi) *''E. s. inouei'' Shirôzu & Yata, 1973 (Thailand, Cambodia, Indo-China) *''E. s. tiomanica'' Okubo, 1983 (Tioman) ''

Eurema irena ''Eurema irena'' is a butterfly in the family Pieridae. It is endemic to Sulawesi. Taxonomy ''Eurema irena'' was treated as a subspecies of ''Eurema simulatrix'', but formally raised to full species status by Yata in 1994. References iren ...

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

References

simulatrix Butterflies described in 1891 Butterflies of Singapore Butterflies of Indochina Butterflies of Borneo Butterflies of Java {{Pieridae-stub