8 4 
Psyche 
[March 
a complex of several branches; costal veinlets oblique, long, un- 
branched; Rs with two branches; MA anastomosed with Rs for a 
short distance; MP apparently unbranched. 
Holotype: No. 15594, Peabody Museum, Yale University. This 
specimen, when studied by Tilly ard, had not been completely cleaned; 
it was known to him only by the base of the wing. Removal of mat- 
rix has revealed the greater part of the rest of the wing, as shown 
in figure 18; some parts of the posterior margin of the wing are 
missing but they are not critical for the determination of the species. 
In his figure of the fossil, Tillyard omitted the weakly developed 
CuP, which arises from Cu basally and runs closely parallel to iA. 
It can be seen clearly in the specimen, however, with the aid of low- 
angle illumination. Tillyard’s assignment of Promartynovia to the 
Neuroptera (Sialoidea) was made with some doubt; actually he 
placed the genus in the family Martynoviidae, now included in the 
extinct order Diaphanopterodea. The similarity of the fore wing 
of venicosta to that of sojanense Sharov is really striking. They are 
of comparable size, have a similar venation and even possess the 
identical pigmentation of the pterostigmal area. 
Family Parelcanidae, new family 
Fore wing: more coriaceous than in Oedischiidae ; precostal area 
forming a prominant bulge; Sc apparently extending well beyond 
mid-wing; Rs (so far as known) arising slightly beyond mid-wing, 
anastomosed with a branch of M for a short distance; CuA and 
CuP as in Oedischiidae; iA nearly straight; cross veins about as 
numerous as in Oedischiidae. Hind wing and body unknown. 
This family, which is apparently more closely related to the 
Oedischiidae than to the Permelcanidae, is characterized mainly by 
the prominance of the precostal area and by the coriaceous nature of 
the fore wing. 
Genus Parelcana, new genus 
Fore wing: costa usually consisting of two distinct branches, the 
anterior one giving rise to a series of radiating veins, the posterior 
one forked; at the level of end of precostal area, the costal space is 
about as wide as the space between R and Sc; termination of iA 
close to end of 2A; cross veins close together, uniformly distributed; 
no reticulation formed (at least in basal half of wing). 
Type-species: Parelcana dilatata, n. sp. 
