Parachrostia kishidai is a moth

Moth

A moth is an insect closely related to the butterfly, both being of the order Lepidoptera. Moths form the majority of this order; there are thought to be 150,000 to 250,000 different species of moth , with thousands of species yet to be described...

 of the Micronoctuidae

Micronoctuidae

The Micronoctuidae are a family of moths that includes about 400 described species. The family was first described in 2005.Micronoctua karsholti is the smallest of all species in the Noctuoidea superfamily.-Taxonomic History:...

 family. It is known from Amami Ōshima

Amami Oshima

is a semi-tropical island in the Amami Islands, which is part of the larger Nansei Islands in Japan. Ōshima literally means big island, and it is the largest of the Amami Islands. It lies roughly halfway between the islands of Okinawa and Kyūshū. Briefly part of the Ryūkyū Kingdom, in 1624 it was...

.

Adults have been found in August and October, but probably occur in several generations.

The wingspan

Wingspan

The wingspan of an airplane or a bird, is the distance from one wingtip to the other wingtip. For example, the Boeing 777 has a wingspan of about ; and a Wandering Albatross caught in 1965 had a wingspan of , the official record for a living bird.The term wingspan, more technically extent, is...

is 11-12.5 mm. The forewing is relatively broad, with a bright, ovoid, yellow reniform stigma. The crosslines are all present, black and wawed. The terminal line is marked by tight black interveinal spots. The hindwing is grey, with an indistinct discal spot. The underside of the forewing is brownish and without a pattern. The underside of the hindwing is brownish, with a discal spot.