NOTODONTIDAE 



301 



and tibiae densely hairy, spurs short. Forewings : Ib furcate. 

 Hindwinga : 3 and 4 closely approximated or connate, 5 weak, 

 imperfect, from middle of transverse vein, parallel to 4, 6 and 

 7 connate or stalked, 8 connected with cell towards middle, 

 diverging or approximated to end of cell. 



A rather moderate family of pretty general distribution 

 except in New Zealand. Imago with moderate or rather stout 

 bodies, fore wings rather elongate-triangular ; the species are all 

 strictly nocturnal in habit, and comparatively seldom met with 

 except in the larval stage. 



Ovum rounded or obtusely subconical above, flattish 

 beneath, surface smooth or minutely pitted. Larva moderately 

 stout, sometimes without prolegs on 13. Pupa usually sub- 

 terranean. 



PHYLOGENY OF NOTODONTIDAE. 



Pygaera 



TABULATION OF GENERA. 



1. Forewings with 10 rising separate, connected with 9 2. 



out of 9, not otherwise con- 



nected . . .6. 



2. Palpi very long ... 7. PTEROSTOMA. 



rather short . . . .3. 



3. Posterior tibiae without middle-spurs . 10. CERURA. 



,, with middle-spurs . . 4. 



4. Antennae in $ bipectinated . 9. HIEROPHANTA. 



not pectinated . . .5. 



5. Forewings with strong dorsal scale-tooth 8. ODONTOSIA. 



without dorsal scale-tooth . 11. PHALERA. 



6. Eyes hairy, at least in part . . .7. 



glabrous . . . . .8. 



