HOME | DD

Description
Another new discovery on Oct 2006. The initial shot of a male Eurema sp. shot on 7 Oct 06 at an open wasteland are in the northern part of Singapore, proved to be something different after all.

After a voucher specimen was taken for further scrutiny. It was found to be a re-discovered Eurema brigitta senna, a species which had been missing from the Singapore Checklist as it was not sighted until now.

"The underside forewings are without cell spots. Upperside forewing black apical border serrated, but not more deeply excavated in spaces 2 and 3" - source: Corbet & Pendlebury Edn 4 page 98.

Females are slightly more unique in that the yellow colour of the hindwings are lighter than the forewings on the undersides, as can be seen in one of the sample photos. The males' undersides are unicolourous as with the other species of this genus.

It's host plant, Cassia mimosoides, is described as a "An exceedingly variable, prostrate to erect legume up to 1.5 m high, usually annual, sometimes with stems becoming woody above ground level and enabling the plant to perenniate. Stems variable, usually puberulent with short curved hairs, sometimes more or less densely clothed with longer spreading hairs. Inflorescence supra-axillary or sometimes axillary, one- to three-flowered. Pedicels 0.3 to 2.5 (3.0) cm long, usually shortly puberulent, sometimes spreading hairy. Petals yellow, obovate 4 to 13 mm long, 2 to 9 mm wide. "The host plant has also been described in "Keng, H. (1990) Concise Flora of Singapore"

Description
Another new discovery on Oct 2006. The initial shot of a male Eurema sp. shot on 7 Oct 06 at an open wasteland are in the northern part of Singapore, proved to be something different after all.

After a voucher specimen was taken for further scrutiny. It was found to be a re-discovered Eurema brigitta senna, a species which had been missing from the Singapore Checklist as it was not sighted until now.

"The underside forewings are without cell spots. Upperside forewing black apical border serrated, but not more deeply excavated in spaces 2 and 3" - source: Corbet & Pendlebury Edn 4 page 98.

Females are slightly more unique in that the yellow colour of the hindwings are lighter than the forewings on the undersides, as can be seen in one of the sample photos. The males' undersides are unicolourous as with the other species of this genus.

It's host plant, Cassia mimosoides, is described as a "An exceedingly variable, prostrate to erect legume up to 1.5 m high, usually annual, sometimes with stems becoming woody above ground level and enabling the plant to perenniate. Stems variable, usually puberulent with short curved hairs, sometimes more or less densely clothed with longer spreading hairs. Inflorescence supra-axillary or sometimes axillary, one- to three-flowered. Pedicels 0.3 to 2.5 (3.0) cm long, usually shortly puberulent, sometimes spreading hairy. Petals yellow, obovate 4 to 13 mm long, 2 to 9 mm wide. "The host plant has also been described in "Keng, H. (1990) Concise Flora of Singapore"