6o 
Psyche 
[March 
It is far removed from the family Brodiidae, within which it was 
placed by Copeland ; it lacks the extreme petiolation characteristic of 
the Brodiidae, and more significantly, lacks the strikingly serrate costal 
margin, which is the outstanding feature of the brodiids. In the 
sphecopterids the subcosta terminates on the radius, the radial sector 
(at least in the fore wing) is anastomosed for a short distance with 
MA, and the cross veins are very regularly arranged, forming definite 
rows. In the corydaloidids the subcosta terminates in the costal area 
without definitely ending on either the costa or R 1 ; and there is a 
brief anastomosis of MA with Rs and of CuA with M. 
Brodioptera Copeland, 1957 
Brodioptera Copeland 1957, Geological Survey of Canada, Mem. 286:53. 
Wing venation: Sc terminating about two-thirds of the wing 
length from the base; Rs with several branches, MA, MP (appar- 
ently), CuA and CuP unbranched. 
Type species: Brodioptera cumberlandensis Copeland. 
Brodioptera cumberlandensis Copeland, 1957 
Figure 1 
Brodioptera cumberlandensis Copeland, 1957, Geol. Surv. Canada, Mem. 
286: 53. 
Length of wing, 17 mm; maximum width, 4.5 mm. 1 Apex of wing 
rounded; Rs branched to form R2a, R2b, R3, R4 + 5; MA arising 
slightly distad of the origin of Rs ; CuA arising much nearer the base 
of the wing. The arrangement of cross veins is shown in figure 1. 
Type: no. 10390 (obverse and reverse), Geological Survey of 
Canada. This consists of a fairly well-preserved wing, lacking only 
the very base and a few small areas near the middle of the wing. 
Whether the wing is a fore or hind wing cannot be determined. The 
convexities and concavities of the veins are clearly indicated. The 
specimen was collected by Henry M. Ami, in 1899, in deposits at 
West Bay, Plarrsboro, Cumberland County, Nova Scotia. The 
deposit is stated by Dr. Copeland to belong to the Riversdale group 
and more specifically by Ami as probably of Joggins coalfield, of the 
Coal Measures. 
This specimen is generalized so far as the absence of fusion of main 
veins is concerned but it is highly specialized in the reduction of 
branches on all veins accepting Rs, in the close proximity of Sc and 
R 1 to the costal margin, and in the small number of cross veins. It is 
surprising to find a megasecopteron as specialized as this in the Rivers- 
lr The dimensions are incorrectly indicated on p. 101 of Copeland’s paper 
(1957). 
