Dolichoiulus ypsilon Enghoff 1992

Enghoff 1992. Dolichoiulus - a mostly Macaronesian multitude of millipedes. With the description of a related new genus from Tenerife, Canary Islands (Diplopoda, Julida, Julidae). Entomologica Scandinavica Supplement, No. 40 1992: 1-158