125 
going, differs from it by the pale spots at the base of 
the abdominal segments. It is known from Spain, France, 
Belgium, Austria, Hungary, Italy, Corfu, Asia minor etc. 
I possess the species from Spain, Hungary and Asia minor. 
Morter. 
Navas, Mem. Real Acad. Cienc. Barcelona, p. 466, 1915. 
This genus is nearly related to the foregoing. The main 
difference is found in the absence of crossveins in the 
apical area of the hindwings. 
Morter hyalinus (Pl. IX, fig. 27). 
Myrmeleon hyalinum Olivier, Encycl. VIII, p. 126. 
Myrmeleon cinereus Klug, Symb. Phys. IV, tab. 36, fig. 3. 
Myrmeleon distinguendus Rambur, Hist. nat. Ins., Névro- 
pteres, p. 407, 1842. 
This insect is known from the Mediterranean Region, 
and from Caucasus and Arabia. I possess the species 
from Spain, Poros and Caucasus. 
Navas (Revista Real Acad. Cienc. Madrid, p. 613, 1915) 
is undoubtedly right in placing Myrmeleon cinereus Klug 
as a synonym. M. hyalinus agrees very well with the de- 
scription and the figure, given by Klug. 
Euroleon n. g. 
In the forewing Rs arises further out than the level 
of the fork of Cuz. The angle between Cura and Culp 
very acute and enclosing two rows of cells; the second 
branch from Cuwza arises a little before the end of Cuzp. 
Cuip almost parallel with Cu2; its apical part strongly 
curved just before emitting the last crossvein to Cw 2. 
Posterior Banksian line present. The angle between M 2a 
and M 2p in the hindwing very acute and enclosing two 
rows of cells. The second branch from M™ 2a arises ap- 
proximately at the level of the end of M2p. M 2p almost 
