Distoleon perjurus (Walker)

Banks, Nathan, 1942, Neuropteroid Insects from Guam, Insects of Guam I, Honolulu, Hawaii: Bernice P. Bishop Museum, pp. 25-30 : 29-30

1. Distoleon perjurus (Walker) .

Mynneleon perjurus Walker , Cat. Neuropt. Ins. British. Mus., 340, 1853.

Piti , Yona , two specimens .

I identify these with this species of Walker, since they are closely related to his striola (bistrigatus Rambur)), but differ in having the last tarsal joint marked with black, as I noted on the type in 1912. They show the spot at the rhegma more plainly than in bistrigatus, and these two specimens show a fainter mark where the anal connects with the cubital fork; the mark near stigma is distinct, and the last radial cross vein is also dark; the radius in these specimens has several moderately long dark streaks (not in bistrigatus) and at these places the radial cross vein is also dark. The wings are more slender than in bistrigatus. M. torvus \i\Talker appears to be the same, and its description fits one of the specimens better in that the streak in the hindwing is broken; the type also has the last tarsal joint partly dark.

I noted in 1912 that M. violentus Walker was also the same species, except that the streak in the hindwing was not distinct; this, however, varies in many species. D. perjurus and D. violentus were described from the "Sandwich Islands"; D. torvus without locality.

Petersen (1918) puts perjurus as a synonym of bistrigatus for which he makes a new genus, Eidoleon , based on the fact that bistrigatus in the hindwing has a "third anal vein", or rather a cross vein from the second anal to the wing margin. These specimens I have identified as perjurus do not possess that vein, so go in Distoleon ; however, I am doubtful of the value of this vein as a generic character.