368 LEPIDOPTERA CHAP. 



KEY TO THE FAMILIES OP MOTHS l 



N.B. This table is not simply dichotomic ; three contrasted categories are used 

 in the case of the primary divisions, A, B, C, and the secondary divisions, 



I, II, III. 



A. Fore wing with nervule 5 coming from the middle of the discocellulars, 



or nearer 6 than 4 (Categories I, II, III = 1-18). 

 I. Frenulum rudimentary . . Fam. 38. Epicopeiidae, see p. 418 



II. Frenulum absent (Categories 1-8). 



1. Proboscis present, legs with spurs (Cat. 2-5). 



2. Hind wing with nervule 8 remote from 7 (Cat. 3 and 4). 



3. Fore wing with nervule 6 and 7 stalked 



Fam. 39. Uraniidae, see p. 419. 



4. Fore wing with nervules 6 and 7 not stalked 



Fam. 5. Ceratocampidae, see p. 375. 



5. Hind wing with nervule 8 nearly touching 7 beyond end of cell 



Fam. 4. Brahmaeidae, see p. 374. 

 6. Proboscis absent, legs without spurs (Cat. 7 and 8). 



7. Hind wing with one internal nervure 



Fam. 3. Saturniidae, see p. 372. 



8. Hind wing with two or three internal nervures 



Fam. 6. Bombycidae, see p. 375. 

 III. Frenulum present (Cat. 9-18). 



9. Antennae fusiform [spindle-shaped] Fam. 9. Sphingidae, seep. 380. 

 10. Antennae not fusiform (Cat. 11-18). 



11. Proboscis absent . . Fam. 7. Eupterotidae, see p. 376. 



12. Proboscis present (Cat. 13-18). 



13. Hind wing witli nervule 8 curved and almost touch- 

 ing 7 after end of cell ; nervure la reaching anal angle 



Fam. 12. Cymatophoridae, see p. 386. 



14. Hind wing with nervule 8 remote from 7 after end of 



cell (Cat, 15-18). 



1 5. Tarsi as short as tibia, hairy ; stoutly built moths 



Fam. 11. Notodontidae,' 2 see p. 383. 



16. Tarsi long and naked ; slightly built moths (Cat. 



17 and 18) 



17. Fore wing with nervule 7 remote from 8, and 

 generally stalked with 6 



Fam. 40. Epiplemidae, see p. 420. 



18. Fore wing with nervule 7 given olf from 8 ; hind 

 wing with nervure la short or absent 



Fam. 36. Geometridae, see p. 411. 



1 For explanatory diagram of the wings, see Fig. 161, I. When the nervuration 

 is obscured by the wing-scales, it may be rendered temporarily visible by the appli- 

 cation, with a camel's-hair brush, of a little benzine. The wings may be per- 

 manently denuded of their scales by being placed for a short time in Eau de Javelle 

 (hypochlorite of potash). 



2 The genus Cyphanta (one species from India) has nervule 5 of the fore wing 

 proceeding from the lower angle of the cell. 



