Ryukyu Flycatcher

Species Information Scientific name: Ficedula owstoniJapanese name: リュウキュウキビタキChinese name: 琉球姬鶲English name: Ryukyu flycatcherOrigin: Ryukyu Islands (Osumi Islands in Kagoshima Prefecture ~ Yaeyama Islands in Okinawa Prefecture) Ecology and Description Previously considered a subspecies of the Narcissus flycatcher (Ficedula narcissina), it is now regarded as an independent species. Sightings on Okinawajima are rare and infrequent. Field… Continue reading Ryukyu Flycatcher

Okinawa Giant Silkworm

Species information Scientific name: Rinaca japonica ryukyuensisJapanese name: クスサンChinese name: 雙黑目天蠶蛾(琉球亞種)English name: Okinawa giant silkwormOrigin: Amami Oshima, Tokunoshima, Okinawajima Ecology and description The Rinaca japonica species is divided into three subspecies based on their distribution: The adults of the Ryukyu subspecies have a darker color than the mainland subspecies. Although the Japanese name クスサン (Camphor… Continue reading Okinawa Giant Silkworm

Okinawa Rail

Species information Scientific name: Hypotaenidia okinawaeJapanese name: ヤンバルクイナChinese name: 沖繩秧雞、山原秧雞English name: Okinawa railOrigin: Northern Okinawajima (endemic) Ecology and description 1. Appearance The Okinawa rail has a total length of approximately 35 cm and weighs about 450 g. The plumage from the crown to the tail is deep olive-green, the face is black, and a white line… Continue reading Okinawa Rail

Okinawa Skink

Plestiodon marginatus Japanese name: オキナワトカゲChinese name: 沖繩石龍子English name: Okinawa SkinkOrigin: Okinawa Islands, Yoronjima, Okinoerabujima The Okinawa Skink reaches a total length of about 15–19 cm and is distributed in the Okinawa Islands as well as on Yoronjima and Okinoerabujima in the Amami Islands. It mainly inhabits coastal forests and grasslands, in contrast to Barbour’s Skink… Continue reading Okinawa Skink

Okinawa Short-Legged Skink

Ateuchosaurus okinavensis Japanese name: オキナワヒメトカゲChinese name: 沖繩光蜥English name: Okinawa Short-Legged SkinkOrigin: Okinawa Islands The genus Ateuchosaurus is characterized by very short limbs and currently includes three species: The Okinawa Short-Legged Skink reaches a total length of about 10–13 cm and is often active under forest leaf litter, making it difficult to observe. On Okinawajima, it… Continue reading Okinawa Short-Legged Skink

Kawamura’s Rice Field Frog

Species information Scientific name: Fejervarya kawamuraiJapanese name: ヌマガエルChinese name: 川村氏澤蛙、川村陸蛙English name: Kawamura’s rice field frogOrigin: Western Honshu (central region and westward), Shikoku, Kyushu, and some nearby islands in Japan; several islands of the Amami Islands (except Yoronjima) and Okinawa Islands (some islands); parts of China Ecology and description Kawamura’s rice field frog is a Fejervarya… Continue reading Kawamura’s Rice Field Frog

Barbour’s Skink

Plestiodon barbouri Japanese name: バーバートカゲChinese name: 巴氏石龍子English name: Barbour’s SkinkOrigin: Okinawa Islands, Amami Islands The Barbour’s Skink is a medium-sized lizard found in the Okinawa and Amami Islands. Its specific name honors American herpetologist Thomas Barbour. Juveniles are dark brown with five golden longitudinal stripes along the sides of the body, and their tails are… Continue reading Barbour’s Skink

Okinawa Giant Stag Beetle

Species information Scientific name: Serrognathus titanus okinawanusJapanese name: オキナワヒラタクワガタChinese name: 沖繩扁鍬形蟲、沖繩扁鍬English name: Okinawa giant stag beetleOrigin: Okinawajima, Iheyajima, Iejima, Kourijima, Minnajima, Sesokojima, Hamahigajima, Tsukenjima, Tokashikijima, Zamamijima, Akajima, Gerumajima, Kumejima Ecology and description The Giant Stag Beetle Serrognathus titanus is widely distributed across Korea, Japan, Taiwan, China, and Southeast Asia, with 12 subspecies recorded in Japan.… Continue reading Okinawa Giant Stag Beetle

Okinawa Bredia

Bredia okinawensis Japanese name: コバノミヤマノボタンChinese name: 小葉深山野牡丹English name: Okinawa BrediaOrigin: Endemic to the northern part of Okinawajima This species is endemic to the Yambaru region in northern Okinawajima. It can be distinguished from the commonly seen Melastoma candidum, which has larger flowers with five petals. Okinawa Bredia typically has smaller flowers with four petals and… Continue reading Okinawa Bredia

Okinawa Geothelphusa Freshwater Crab

沖繩澤蟹

Geothelphusa grandiovata Japanese name: オキナワオオサワガニChinese name: 巨圓澤蟹English name: Okinawa Geothelphusa Freshwater CrabOrigin: Endemic to Okinawajima Geothelphusa grandiovata is the largest species of Geothelphusa freshwater crabs found in Japan. Its carapace is smooth and glossy, and coloration varies widely from reddish brown to yellowish brown and purplish brown. The species name grandiovata is a combination of “grandis”… Continue reading Okinawa Geothelphusa Freshwater Crab