The European species of this subfamily were originally referred to the genus Blennocampa . Konow in 1886 removed one of the species from Blennocampa under the generic name of Entodecta and in 1890 the remaining species under the name of Scolioneura . These genera, he has associated with Blennocampa and its allies under the tribal name of Blennocampides1 in his last analysis of the group. The first American species was described by Norton in 1867 as Selandria capitalis , later, 1895, referred to Scolioneura by Marlatt2 and two new species described. S. A. Forbes3 in 1885 described Metallus rubi from two male specimens bred from larvae mining in the leaves of cultivated blackberries. This species was referred to the genus Fenusa by Cresson4 in 1887 as a possible variety of Fenusa curta Nort. Konow in the Genera Insectorum, evidently on the authority of Cresson, makes Metallus a synonym of Fenusa and adopts rubi as a good species. An examination of Forbes’s type proves it to belong to the Scolioneurinae. Since Metallus antedates both Entodecta and Scolioncura , if it should be found later that only two generic names can be retained in this subfamily, Metallus will have to be used for one of them. A fifth species was added by Kincaid5 in 1900 from Alaska under the name of Fenusa alaskana , a species of Entodecta . Finally a sixth species was described by Konow6, Entodecta humilis , from Alaska in 1908. The present writer in 19067 separated Scolioneura and Entodecta from the Blennocampides as a distinct subfamily, based on the divergent condition of the medio-cubital cross-vein and the free part of M3+4 in the front wings and from the Fenusinae, another small group of genera included in the Blennocampides by Konow, by the form of the cell R1+2 of the hind wings. The cell R1+2 being closed throughout and appendiculate at apex and with vein R3 reaching the margin of the wing distinctly before the apex in the Scolioneurinae and the cell R1+2 rounded at apex and open and the vein R3 reaching the margin of the wing at or beyond the apex in the Fenusinae.