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EXPLANATION OF PLATE XIII. 
Gennadas praecox, sp. nov. 
1.—Antennal scale, X 8. 
2.—Right-half of the petasma, folded naturally, X 16. 
3.—The same unfolded, x 16. 
4.—Second maxilla, 16. 
Gennadas alcocki, sp. nov. 
5.—Leit-half of the petasma, X 16. 
6.—The apex seen from the other side, X 30. 
7.—Antennal scale, X 8. 
8.—Thelycum, X 16. 
Gennadas scutatus, Bouvier. 
9g.—Part of the second maxilla, x 70. 
10.—Left-half of the petasma, X 30. 
