Revision of the American Notodontidte. 333 



COLAX. 



Colax, Hiibn., Verz. Schmett., 141, 1513 (1816). 



Antennae pectinated in both sexes on basal two-thirds. Palpi 

 hairy, hardly extending beyond frons. Head tufted at base of 

 antennas. Primaries : costal 'margin convex on outer half ; apex 

 acute ; outer margin straight from apex to vein 5, then oblique 

 slightly concave in £ to inner angle ; areole absent ; vein 5 from 

 middle of discocellular ; 6-10 stalked, 10 from before 7. Secondaries : 

 veins 3 and 4 apart ; 6 and 7 stalked ; 5 absent ; 8 diverging from 

 7 at middle of cell. 



Type. G. apuhcs, Cr. 

 Apulus, Cr. (Sphinx), Pap. Exot., i, t. 88, f. E. (1779). 

 Phocus, Sens. (Hapigia), P. Z. S., 1892, p. 340. 



Hemiceras. 



Hemiceras, Guen., sp. gen., Lep. Noct., ii, p. 379 (1852). 

 Ecregma, Walk., Cat. Lep. Het., B. M. xii, p. 966 (1857). 

 Comidava, Walk., 1. c, xxvi, p. 1695 (1862). 

 Epicoricty Walk., 1. c, xxxiii, p. 852 (1865). 

 Gadiana, Walk., 1. c, p. 854 (1865). 

 Salamhoria, Walk., 1. c, p. 855 (1865). 

 MdophopteryXy Moschl., Verb. Zool.-bot. Ges. Wein, xxvii, 

 p. 684 (1878). 



Antennas pectinated for half their length in male • simple or 

 fasciculate in female. Palpi extending beyond frons, smooth ; second 

 joint long ; third joint short. Primaries : vein 5 from near upper 

 angle of cell ; 6 from middle of areole ; 7, 8, 10 from end of areole. 

 Secondaries : vein 5 absent ; 6 and 7 stalked ; 8 diverging from 7 at 

 middle of cell. Male usually with glandular spot at end of vein 2. 



Type. H. pallidula, Guen. 

 Pallidula, Guen., 1. c, p. 381 (1852). 

 Linea, Guen., 1. c, p. 381 (1852). 

 TrinuMla, Guen., 1. c, p. 382 (1852). 

 Zotula, Guen., 1. c. (1852). 

 Pidvenda, Guen., 1. c. (1852). 

 Indistans, Guen., 1. c, p. 383 (1852). 

 Cadmia, Guen., 1. c. (1852) = obliqicili?iea, Walk. (Comi- 



dava), 1. c., xxvi, p. 1695 (1862). 

 Barina, Guen., 1. c, p. 383 (1852) = Illucens, Walk, 1. c, 



xxxiii, p. 852 (1865). 

 Sigula, Guen., 1. c, p. 384 (1852). 



