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Psyche 
[Vol. 94 
are very large and bulging; and the antennae are long, multiseg- 
mented, and relatively thick; the prothorax carried two large pro- 
thoracic wings, which were previously noted by (Carpenter 1938).” 
The head and thoracic area of the insect can be seen in the accom- 
panying photographs (Figs. 4 and 6) at different magnifications. As 
shown in these figures, there seems to be a small prothoracic lobe (a) 
on the left side of the prothorax, noted in my original account of the 
specimen. This is only 2 mm wide. Anterior to it, on the same side, 
Kukalova-Peck has drawn a large, bulging eye. I had assumed in 
my account that the prothoracic lobe included that area, making the 
lobe about 5 mm long. I do not see anything on either side of the 
head resembling the two large eyes she has drawn. She has also 
included in her figure a pair of “pleisiomorphic” antennae, with 
numerous segments, arising from the head. I did not refer to those 
structures in my 1938 paper because I was convinced they were of 
plant origin. I recently brought the fossil to Professor Andrew H. 
Knoll, Curator of the Paleobotanical Collection at the Harvard 
University Herbaria, for his examination. He subsequently reported 
to me that the structures were without question the shoots of vascu- 
lar plants (Fig. 6). The numerous segments, shown in Kukalova- 
Peck’s figure, are not present in the fossil [See figures 4 and 6]. Also, 
I am unable to see any indication of the segmented piece of the 
antenna shown in her figure as arising from the right side of the 
head. There is one “joint” on a shoot near the front margin of the 
right wing, but this is typical of the “joints” that occur on shoots of 
many Carboniferous plants, especially among the Arthrophyta and 
other articulates. We do not yet know the nature of the antennae of 
Lithoneura. 
In 1944 I described Lithoneura mirifica, a second species of the 
genus, based on a well-preserved, though wrinkled, hind wing (Fig. 
7), the only complete wing so far known in the family. The holotype, 
no. 14880ab, is in the Langford collection of the Illinois State 
Museum, at Springfield. The wing is 85 mm long, about twice the 
size of lameerei. It is differently shaped from the hind wing of 
lameerei, being more nearly oval, and having a convex anterior 
margin and a broader anal area. The venation is close to that of 
lameerei, so far as the latter is known. 
A third species of the genus, carpenteri, was named by Richard- 
son in 1956 (Fig. 8). The holotype, no. 45248 AB in the Walker 
