14 
About midway on the wing M 3+4 in a characteristic way bends 
backwards and continues outwards in another line than that of the 
proximal part. M 3 under a very steep angle issues from M 4 but then 
turns sharply outwards parallel with the veins on both sides of it. 
The anal veins are only seen in fragments, and the anal area 
most probably folded over and found partly below the preserved part, 
the direction of some few veins indicates that these veins must belong 
to a hind series hidden in the stone below the other visible veins. 
The drawn veins are distinctly seen in the stone, but no such 
network of fine veins between them (nor f. inst. in the cells surrounded 
by the Rs-branches) as is found in the recent forms. We cannot 
completely deny the possibility that such an irregular accessory vein- 
reticulation may have been present, but when we observe the distinct¬ 
ness of the cross-veins between Sc and R, of those between R and Rs, 
and of those between Mi and Ms, whilst nothing whatever indicates 
the presence of more cross- or net-veins distally to them, it is by far 
the most probable that such accessory veins have not been present. 
The interpretation of the veins has been much facilitated through 
the use of Comstock’s figures, f. inst. that of a recent Scudderia nymph 
(Comstock: The Wings of Insects fig. 123). We here meet with the 
curious fact that the veins of this fossil wing are much more easily 
liomologized with the traclieation of a recent nymph, than are the 
wing veins of a recent imago belonging to the same type as the nymph. 
The length of the preserved piece of wing (measured from apex 
of wing to the basal lower corner) is 27 mm. 
1 specimen. Struer (poss. Min. Museum). 
Neuroptera Planipennia. 
Megalomus densistriatus n. sp. 
The Neuropterous wing, fig. 4, which has been found in cement- 
stone, distinctly appears to belong to a representative of the family 
Hemerobiidce (by the presence of more than 1 radial branches and by 
the rather few cross-veins arranged in series). Especially by the rich 
ramification of its veins it agrees with the Tertiary (Oligocène) genus 
Bothriomicromus Scudder, but as the 1st cross-vein of the costal area 
is bent backwards towards the base of the wing as a nervus recur¬ 
rens it cannot belong to this genus. By the broadness of its costal 
area it, however, agrees with the recent Hemerobiid genera Mega¬ 
lomus Ramb., Drepanopteryx Burm., and Drepanacra Tillyard which 
as to venation show the most primitive features within the family. 
