60 WILLIAM T. M. FORBES 



38. Tongue shorter than fore logs CEcophoridae (Ethmia) (p. 244) 



38. Tongue longer than fore legs 39 



39. Maxillary palpi large; labial palpi obsolete; ironto-clypeal suture complete; 



femora concealed A few Gelechiidae (p. 255) 



39. Maxillary palpi minute and fronto-clypeal suture interrupted; or maxillary 



palpi lost, or large in primitive species with fore femora exposed. 



Lavernidae (p. 318) 



40. Fronto-clypeal suture complete, maxillary palpi large, in contact with both 



fore and middle legs Gelechiidae (p. 255 ) 



40. Fronto-clypeal suture obsolete in middle 41 



41. Maxillary palpi large, no hooked setae on venter of ninth abdominal segment. 



CEcophoridae (p. 230) 



41. Maxillary palpi minute, distant from maxillae; with hooked setae on venter of 



ninth abdominal segment Xylorictidae (p. 250) 



42. Labial palpi exposed, lanceolate 43 



42. Labial palpi reduced to a minute area behind mouth, or lost 48 



43. Body with more or less dense secondary setae (sometimes very minute) not 



arranged around the larval warts Lasiocampidae (p. 679) 



43. Body with primaries only, or with setae arranged around the larval warts. . . .44 



44. Fore femora exposed 45 



44. Fore femora concealed 46 



45. A specialized cremaster or hooked cremastral setae present; or middle legs not 



reaching to maxillary palpus or eye; or a special ridge developed on fifth 

 segment of abdomen Noctuidae (p. 42) 



45. Abdomen ending in a group of pyramidal points, the setae obscure, middle legs 



touching maxillary palpi; no special ridge on fifth segment. 



Pyralididae (Diatrcea) (p. 590) 



46. Body setae not arranged in circles about the scars of the larval warts. 



Agaristidae (p. 42); Noctuidae (p. 42) 



46. Body setae arranged in circles about the scars of the warts 47 



47. Tongue less than half as long as fore wings Liparidae (p. 42) 



Arctiidae (Halysidota) (p. 42); Euchromiidae (p. 43) 



47. Tongue less than half as long as fore wings Liparidae (p. 42) 



48. Maxillary palpi preserved, close to antennae; a dorsal crest on thorax and base 



of abdomen; no specialized cremaster Pyralididae (Galleriinae) (p. 532) 



48. Maxillary palpi lost; rarely with a mid-dorsal keel; usually with a cre- 



master 49 



49. Antennae distinctly swollen toward tip; cremaster obsolete. 



Nymphalidae (CEneis) (p. 44) 



49. Antennae not swollen toward tip; often pectinate; or cremaster well devel- 



oped 50 



50. Setae arranged in circles around the larval warts. . . 51 



50. Setse not arranged in circles around the larval warts 53 



51. Antennae more than half as long as fore wings 52 



51. Antennae less than half as long as fore wings A few Liparidae (p. 42; 101) 



52. A long cremaster, as long as ninth and tenth segments of abdomen together, 



with hooked setae, abdomen without flanged plates. 



Noctuidae (Pantheinae) (p. 42) 



52. Cremaster rudimentary or without hooked setae, in the latter case with flanged 



plates on abdomen Arctiidae (p. 42) 



53. Body covered with rather coarse, short secondary setae, cremaster rudimen- 



tary Bombycidae (p. 679) 



53. Body covered with fine soft secondary setae; cremaster strong, with recurved 



hooks : Notodontidae (Melalopha) (p. 42 ; 678 ) 



53. Body with setae simple, obscure, or mostly lost 54 



