Zorochros (Pronegastrius) humeralis yakuensis (Kishii, 1976)

Arimoto, Kôichi & Itô, Reo, 2018, Elateridae (Insecta, Coleoptera) from Tanegashima Island (Ryukyu Islands, Japan), Check List 14 (4), pp. 681-692 : 688

* Zorochros (Pronegastrius) humeralis yakuensis (Kishii, 1976)

Negastrius humeralis ( Candèze, 1873) ; Nakane and Kishii 1958: 36. Pronegastrius (Pronegastrius) humeralis yakuensis Kishii 1976a: 29 . Zorochros (Pronegastrius) humeralis yakuensis ; Kishii 1999: 105.

Material examined. 1♀, Site 8, spraying [18A266] ( Fig. 4K).

Species diagnosis. Kishii (1976a).

Remarks. Nakane and Kishii (1958) recorded Negastrius humeralis ( Candèze, 1873) from Yakushima Island for the first time. Kishii (1976a) described Pronegastrius (Pronegastrius) humeralis yakuensis based on specimens from Yakushima Island and assigned the Negastrius humeralis population from Yakushima Island to the subspecies name.

Bionomics. The specimen examined was found under a stone near the mouth of a river, together with Quasimus uguriensis heianus Kishii, 1970 .

Zorochros (Yamatostrius) osawai ( Ôhira, 1972) Negastrius osawai Ôhira 1972: 20 .

Monadicus (Yamatostrius) osawai ; Kishii 1976a: 27.

Zorochros (Yamatostrius) osawai ; Kishii 1999: 105.

Material examined. 3♂, 2♀, Site 13, looking and spray- ing [18A267–18A271] ( Fig. 4L).