1929] 
Jurassic Neuropteran of Bavaria 
191 
only after a study of the type specimens. It is quite obvious, 
however, that insects related to the recent Hemerobiidae 
and Myrmeliontidae are present, as well as others more 
remote from these families. One of the genera, Nymphites 
Hasse (1890,) seems to be closely related to the recent 
Australian genus Nymphes, as observed by Hasse. The 
Jurassic genus differs from Nymphes by the possession of 
a branched media in the fore wing and a much smaller 
number of cross-veins. A second genus, Sialium Westwood 
(1854), was based upon a species apparently somewhat 
similar to Nymphites, but the type specimen is so poorly 
preserved that its exact affinities cannot be determined. 1 
Hagen’s “Nymphes fossilis”, although undoubtedly belong- 
ing to a new genus, is so closely related to Nymphites that I 
can see no reason to exclude it from the family Nymphitidae. 
Family Nymphitidae. 
Mesonymphes, new genus. 
Allied to Nymphes and Nymphites. Wings slender, 
pointed, with a number of cross-veins in the costal space 
and in the subcostal area, between R1 and Sc. Sc close to 
R1 ; R1 bent downward distally ; Rs with 13 branches in the 
fore wing, and 11 in the hind wing; media joined to the 
stem of the radius a little basad of the origin of Rs; M 
branched in the fore wing, the branches diverging close to 
the base of the wing; M unbranched in the hind wing; 
Cul without a basal branch; Cu2 a well-developed vein, 
sending a large series of short terminal branches to the 
hind margin of the wing; 3 anal veins in the fore wing. 
The hind wing has a narrower costal space, a smaller anal 
area, and is somewhat shorter than the fore wing. Cross- 
veins much less numerous than in Nymphes. 
Genotype: Mesonymphes hageni, n. sp. 
(Figure 1.) 
Length of fore wing (estimated), 4.0 cm.; hind wing, 3.6 
cm. Width of fore wing, 1.0 cm.; hind wing, 9 cm. Anterior 
1 Scudder even placed it within the Blattidae (Mem. Bost. Soc. N. 
H. 3:472, 1886). 
