Based on molecular phylogeny and morphological characteristics, Pieris shangrilla sp. nov. is described from North Yunnan. The new species resembles Sinopieris davidis (Oberthur 1876) and Sinopieris venata (Leech 1891), but is distinguished from them by the wing markings, androconia and the shape of the uncus and valva of the male genitalia.

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In Nagano City and Ueda City, Nagano Prefecture, a threatened lycaenid butterfly, Plebejus argyrognomon was observed to lay eggs on and feed on the non-native host plant, Melilotus officinalis alba, which was naturalized from Central Asia to Japan. Larvae reared on M. officinalis alba could be reared to adult stage by indoor breeding. The survival rate was 2.8% reared on M. officinalis alba and 83.3% on the native host, lndigofera pseudo-tinctoria. Furthermore, the developmental period from the early larval stage to the pupa was 61.5 days (n=2) reared on M. officinalis alba and 34.6±2.4 days (n=5) on I. pseudo-tinctoria. These results suggest that the invasion of M. officinalis alba might reduce the survival rate of P. argyrognomon.

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The Stathmopoda aprica species-group is newly proposed, characterized by a very narrow forewing, the absence of forewing veins R1 and CuA, coremata developing on the membranous eighth abdominal segment in the male, the caudal convexity near the base of the tegumen in the male genitalia and the bifurcate signum in the female genitalia. A new species, S. fusciumeraris n. sp., and a newly recorded species from Japan, S. aprica Meyrick, 1913, are included in the species-group. The adult external characteristics, wing venation, and male and female genitalia of these two species are illustrated and compared in detail. In addition, S. aprica is compared with S. astricta Meyrick, 1913, since Kasy (1973) implied that they were probably conspecific. S. fusciumeraris n. sp. is associated with three species of the genus Ficus. Although the host plant of S. aprica is unknown, all the known host plants of this group are Ficus species.

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The structures of Lepidopterous eggshells are usually significant for the study of taxonomy. Here, we describe the surface ultrastructure of the eggs of Zinaspa youngi with scanning electron microscopy (SEM) for the first time.

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Morophaga parabucephala Ponomarenko & Park, 1996 closely related to Morophaga bucephala (Snellen, 1884) is newly recorded from Japan and China. The adults of the two species are redescribed with figures of male and female genitalia. The morphological characteristics are compared with the related species M. bucephala (Snellen). The female genitalia of M. parabucephala are described for the first time.

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A new pteropholid species, Hellinsia muraseae, is described based on specimens from Honshu to Nansei islands, Japan. The larvae of the new species fed on Melanthera species (Compositae) along the seacoast. Field observation at Hidaka-cho, Wakayama Prefecture, Honshu, revealed that the species is multivoltine without a diapause stage and passed the winter in the 2nd to 4th instar larval stadia, continuing their feeding activities.

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