1967] 
Carpenter — Carboniferous insects 
75 
noticeably convex; apex of wing posterior to the wing axis; Rs with 
three terminal branches; MP also with three but with one additional 
terminal twig on MP3 (probably an individual variation) ; CuP 
also with a terminal twig. There is a slight, subtle indication of the 
presence of two light bands across the wing, one just basal of the 
mid-wing and the other just beyond the mid-wing, these being in 
about the same position as the light areas in Brodia priscotincta. 
The details of the venational pattern of the cross veins are shown 
in plate 13. 
Holotype: In the collection of Mr. Walter Dabasinskas, Cicero, 
Illinois, collected at Pit No. 11, Peabody Coal Company, Section 
Four, Braidwood, Illinois. The type specimen consists of a virtually 
complete wing, lacking only the proximal part of the petiole. The 
preservation is better than that of any other specimen of Brodiidae 
that I have seen. The species is named for Mr. Dabasinskas in recog- 
nition of his efforts and success in collecting insects in the ironstone 
nodules. 
The similarity of the wing of E. dabasinskasi to that of B. pris- 
cotincta is very striking. The obvious differences are in the shape 
of the wings and in the nature of the cross veins. Additional com- 
ments about these and other characteristics of dabasinskasi follow. 
( 1 ) The wing shape. Comparison of the venational pattern of 
dabasinskasi and priscotincta indicates strongly that the wing of 
dabasinskasi was actually petiolate, the petiole being absent in the 
fossil. The position of iA and of the point of separation of CuA 
and CuP in dabasinskasi suggests that the wing extended for about 
the same length as the petiole does in priscotincta. Apart from the 
basal portion, the wing of dabasinskasi is noticeably broader distally 
than that of priscotincta. Its shape is very close to that of the sup- 
posed nymphal forms of Brodia which Bolton described (1921, fig. 
16 & 17). As a matter of fact, the shape of the wing of priscotincta 
as shown in Bolton’s drawing (figure 15) is much more like that 
of dabasinskasi than it is like the actual specimens of priscotincta . 5 
5 The nymphal wings which Handlirsch described as Lameereites curvipen- 
nis from the Mazon Creek nodules (1911, p. 375) resemble in general form 
the nymphal wings described by Bolton as belonging to Brodia. There is 
a good chance that the nymphal Lameereites belongs to the family Brodiidae 
but there is no certainty of it and even less probability that the nymph is 
the immature form of Eubrodia. 
Explanation of Plate 12 
Eubrodia dabasinskasi, n. sp. Photograph of holotype. Length of wing, 
as preserved, 48 mm. 
