1964] 
Carpenter — Carboniferous insects 
21 
Homaloneura , being the first of this series to be described, will 
remain valid. It is distinguished from the other genera of the 
Spilapteridae in having the concavity of the front margin of both 
fore and hind wings very slight and in having the anal region of 
the hind wing much less extensively developed than in the other 
genera in which the hind wing is known. Homaloneura elegans 
Brongniart was designated the type-species of the genus Homaloneura 
by Handlirsch in 1922; a photograph of the type specimen of elegans 
is given on plate 17 of the present paper. 
Homaloneura dabasinskasi, n. sp. 
Plates 15 and 16 
Fore wing: length, 55 mm.; maximum width, 15 mm. Costal 
margin very slightly concave, apex of wing rounded, hind margin 
with two slight indentations, one near the posterior branch of MA 
and the other near the anterior termination of MP. Costal space 
broad in the basal half of the wing but narrowing abruptly towards 
the middle of the wing and continuing of uniform width for the 
rest of the wing until the termination of Sc, just before the apex; 
R and Ri nearly parallel to Sc; Rs arising about a quarter of the 
wing length from the base, dividing to form five main branches, 
about half of which fork once again; the branches of Rs tending 
to arise more dichotomously than pectinately; M arising from the 
base of the wing as an independent vein, forming MA and MP 
slightly distally of the origin of Rs; MA with three terminal 
branches; MP with four; Cu apparently arising independently 
from the wing base, forking very shortly into CuA (with four 
branches) and CuP (forked). The basal connections of the anal 
veins are not clearly preserved ; the first of these terminates in 
three branches, the next three are forked. Cross veins distinct, 
arranged as shown in plate 16. The wing is distinctly marked with 
transverse bands and spots. 
Hind wing: length, 50 mm.; maximum width, 18 mm. This is 
shaped like the fore wing except that the concavity of the costal 
margin is slightly more pronounced and the anal area is somewhat 
more rounded. The number of anal veins appears to be the same 
Explanation of Plate 17 
Homaloneura elegans Brongniart, U. Carboniferous, Commentry, France. 
Photograph of type in Laboratoire de Paleontologie, Paris. (Original). 
X 4. Note the prothoracic lobes and the similarity of the wing venation 
to that of H. dabasinskasi. The posterior margin of the hind wing is in- 
completely preserved. 
