Plate XLY. 
Venation of Seirodonia and Hetei'ocampa, 
Fig. 1. Seirodonia hUineata; la, hind wing; lb, subcostal cell enlarged. 
Fig. 2. Heierocampa manteo, fore 'vviug; 2rt, hind wing, normal; 2b, fore wing with cell absent and no subcostaT 
venule (Vein II 3 wanting); hind wing also with dififerent arrangement of the discal veins. 
Fig. 3. Heierocampa biundata. Specimen compared with Walker’s type. 3«, the same, hind wing. 
Fig. J. Heteroeampa guUiviiia: 4a, part of a wing showing the vestiges of the fourth subcostal venule (Vein 11^), 
382 
