474 THE AMERICAN NATURALIST.  [Vor. XXXIV. 
lose its connection with R., and become attached to the first 
branch (Figs. 4 a, 4 b). 
This arrangement is abnormal in the genus and probably in 
the subfamily, and occurs but once in the fifty-seven speci- 
Ri 
mens; but in this case the irregularity is present in both teg- 
mina. In a single instance, also, the third branch in one 
tegmen forks. Finally, in three specimens, two males and one 
female, R., leaves R., and becomes attached to M.: (Figs. 5 % 
5 4). 
