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Show 1866.] ON F O R M O S A N L E P I D O P T E R A . 357 with diffused whitish stripes, and powdery yellowish marks between the nervures along the hinder margin. Beneath, differs from P. hippo in the under wings being white, with dusky nervures and band on outer margin, and a yellow edging at the base and the outer angle. This is a local modification of the Indian P. hippo. Expanse 2|-2f inches. Hab. Formosa. " Frequents banyan trees."-Swinhoe. 6. PONTIA NIOBE, n. s. Form and size of P. nina. Wings whiter ; the apical patch entirely absent; the discoidal spot very small, as in some specimens of P. nina. Beneath paler and less irrorated, and the transverse posterior band interrupted and less distinct than in the allied species. Extreme tip of the antennae orange. Expanse If inch. Hab. Formosa. " Found in the dark shade of groves and lanes. Flies low, with a slow dodging flight."-Swinhoe. 7. CALLIDRYAS PYRANTHE, L. " Abundant among rank overgrown herbage."-Swinhoe. There is one specimen of a very small form of this species (If inch expanse), which Mr. Swinhoe seems to consider distinct. It is, however, identical in form and marking with the larger specimens. 8. CALLIDRYAS ALCMEONE, Cramer. " Scarcer than the last, wilder flight."-Swinhoe. • 9. TERIAS HECABE, L. " Common among grass."-Swinhoe. A variety occurs much smaller than usual, and in which the black margin of the upper wings is hardly sinuated, indicating a transition to T. drona, Horsf. 10. TERIAS VAGANS, n. s. Wings with the anterior angle nearly square, but slightly rounded; hind wings subangular. Male : pure yellow, with a black border on the uppers, nearly as in T. larta, stopping abruptly before reaching the outer angle ; hind wings with a very faint mark at the outer angle; beneath yellow, with an indistinct dusky transverse band across the middle of the hind wings. Female: pale yellow, faintly powdered with dusky scales; dark border as in the male ; a very minute dark mark at the end of the discoidal cell of the uppers, a dusky patch at the outer angle of the lower wings, and the ends of the nervures between it and the anal angle each with a transverse black tnark ; beneath nearly as above in colour, but without markings, except the mark at the end of the cell of the uppers, a black |
