79* 



COMPENDIUM OF GENERIC DISTINCTIONS. 



Genus. INO. Antennas straight, those of male doubly 

 combed. No spur on hinder tibia:. 



Family. JEGERIIDjE. Body long; wings naked and 

 often transparent. Antennas simple. Hinder legs spurred. 



Genus. ^EGBRIA. Proboscis and antennae short. Abdomen 

 not tufted. 



Genus. TKOCHILIUM. Proboscis and antennae long. Large 

 tuft on tip of abdomen. 



Family. URANIID^E. Wings with spring and socket. 

 Antenna; long, never prismatic nor tufted. All exotic. 



Genus. URANIA. Antennae slender, thread-like, gradually 

 tapering to tip. Hinder wings tailed. 



Genus. CASTNIA. Antennae club-like at tip. Proboscis 

 long. Hinder wings not tailed. 



Family. HEPIALID^E. Antennae short, gradually 

 pointed. Proboscis wanting, or very short. 



Genus. HEPIALUS. Antennae thread-like, much shorter 

 than thorax. 



Genus. Cossus. Antennae long as thorax, toothed to tip in 

 both sexes. 



Genus. ZBUZER A* Antennas of male doubly combed to 

 middle, those of female not combed. 



Family. BOMBYCIDjE. Proboscis and palpi very small, 

 or absent. Body thick and hairy. Wings large and broad. 



Genus. ATTACUS. Wings entire, eyed, sometimes with 

 transparent spot. Antennas deeply combed. Warm countries. 



Genus. BOMBYX. Antennas deeply combed, longer than 

 thorax. Abdomen extending beyond hind-wings. Asia. 



Genus. OIKETICUS. Female wingless. Male's body hairy. 

 Antennas combed at base, serrated at tip, no joints. Wings 

 hairy. Abdomen more than half its length beyond hind-wings. 

 Honduras. 



Family. ARCTIIDjE. Antennae of male deeply combed 

 or notched. Wings bent down in repose. Proboscis small, or 

 wanting. 



Genus. STAUROPUS. Front wings narrow, tufted on disc. 

 Antennas of male combed, except at tip. 



Genus. NOTODONTA. Front wings slightly toothed at tip, 

 tufted on inner edge. Thorax not crested. Antennae of male 

 combed. 



Genus. HYPOGYMNA. Proboscis wanting. Wings opaque. 

 Antennas combed in both sexes. Abdomen of male with 

 a brush at tip. 



Genus. HYPERCOMPA. Proboscis much longer than head. 

 Antennas simple in both sexes. 



Genus. DORATIFERA. Proboscis not visible. Antennas 

 more than half the length of body, combed in male half length, 

 rest serrated to tip. Abdomen as far as hind-wings. 



Family. LITHOSIID^E. Antennas mostly slender, some- 

 times combed or feathered in male. Proboscis developed. 

 Body slender. 



Genus. PERICOPIS. Body cylindrical. Palpi hairy in male. 

 Antennas slightly combed in male, serrated in female. Wings 

 long, partly transparent. Central America. 



Genus. HYBLOSIA. ?alpi nearly as long as head, third 

 joint very small. Antennas more than half length of body and 

 deeply combed in male; shorter and serrated in female. 



Genus. CALLIMORPHA. Fore-wings rather triangular. An- 

 tennas of male slightly feathered. Palpi three-jointed. 



Family. NOCTUID^. Body stout. Antenna; mostly 

 simple. Wings moderate, strongly nerved. Proboscis devel- 

 oped. 



Genus. CALOCAMPA. Fore-wings long and narrow. Palpi 

 short. Thorax slightly crested. Antennas short and stout. 



Genus. THYATIRA. Wings large, blunt, broad, rather 

 pointed at tip. Crest across thorax. Antennas short and hairy. 



Genus. CATOCALA. Front wings forming triangle when 

 bent down. Antennas slender. Slight crest on thorax. 



Family. GEOMETRID^E. Body slender and limbs fee- 

 ble. Proboscis short, weak, and membranous. Wings large. 

 Thorax not crested. 



Genus. BiSTON. Rather stout. Proboscis very short. 

 Antennas deeply doubled-combed. Wings thick, rather small, 

 in both sexes. 



Genus. OURAPTBRYX. Body moderate. Antenna* simple 



in both sexes. Front wings sharp at tip, hinder with small 

 tails. Both sexes winged. 



Genus. HALIA. Wings short, triangular, powdery, hinder 

 pair toothed. Antennae of male doubly combed. Proboscis 

 long. Both sexes winged. 



Genus. MELANIPPE. Proboscis long, antennas simple. 

 Both sexes winged ; wings wide and rounded. 



Genus. CHEIMATOBIA. Proboscis very short. Antennae 

 of male hairy. Female nearly wingless, wings of male broad 

 and thin. 



Genus. PLATYPTBRYX. Front wings curved at tip, with 

 hinder edges toothed. Proboscis scarcely visible. Antennas 

 doubly combed in both sexes. 



Family. TORTRICID/E. Small. Fore-wings broad, 

 forming triangle with body when at rest. Body slender. An- 

 tennas mostly simple. Labial palpi broad and flat. Maxillary 

 palpi very small. 



Genus. TORTRIX. Antennas very slightly haired in male. 

 Fore-wings rounded at shoulder, hind-wings large. 



Family. YPONOMEUTID^E. Labial palpi long and 

 slender, maxillary palpi generally wanting. Antennas long and 

 slender. Hinder wings fringed. 



Genus. ADELA. Palpi four. Antenna; very long. Eyes 

 very large. Wings metallic ; head thickly haired. 



Genus. YPONOMEUTA. Palpi two. Antenna? rather hairy. 

 Wings large and curled, front pair long and round. 



Family. TINEIDyE. Wings narrow. Labial palpi sel- 

 dom seen; maxillary palpi very large. Antennae moderate. 



Genus. GALLERIA. Thorax and abdomen stout. Front 

 wings of male scooped at tip, those of female blunt. 



Genus. GRACILLARIA. Wings very narrow. Labial palpi 

 very slender, long, and curved ; maxillary palpi short, slender, 

 and diverging. Fringe of hind-wing very long. 



Genus. TINEA. Head crested in front. Labial palpi 

 longer than proboscis. Fore-wings rather long, rounded 

 behind. 



Family. ALUCITID-iE. Body very slender; wings very 

 narrow, often deeply cleft and fringed. Proboscis long. 



Genus. PTEROPHORUS. Front-wings two-lobed, hinder 

 three-lobed. 



Genus. ALUCITA. Both pairs of wings six-lobed. 



Order. HOMOPTERA. Wings four, membranous ; front 

 pair larger than hinder, not overlapping. Tarsi not more than 

 three joints. Body convex. 



Section. TRIMERA . Tarsi with three joints. Antennas 

 very small. Wings with definite cells. 



Family. CICADID^E. Head short and broad ; eyes large 

 and prominent. Three ocelli, placed in a triangle on back of 

 head. Beak long and three-jointed. Legs not for leaping. 

 Males with drums at base of abdomen. Females with oviposi- 

 tor of two saw-edged blades. 



Genus. CICADA. Antennas seven-jointed. 



Family. FULGORID^E. Antennas three-jointed; ocelli 

 two, placed beneath eyes. Legs mostly for leaping. Males 

 without drums. 



Genus. HOTINUS. All wings variegated. Head elongated 

 into a long process, slightly curved upwards. Exotic. 



Genus. PCECILOPTBRA. Hinder wings not variegated. 

 Head not elongated. Ocelli wanting. 



Family. CERCOPID^E. Antennas three-jointed, last 

 joint forming a long bristle, set between eyes. Ocelli two. 

 Legs for leaping. No drum in male. 



Genus. CERCOPIS. Head small. Ocelli apart, set on upper 

 side of head. 



Genus. APHROPHORA. Head moderate. Ocelli close to- 

 gether, on crown of head. 



Genus. BOCYDIUM. Prothorax developed into a curious 

 arrangement, consisting of a footstalk, with a branch back- 

 wards and a cross-bar in front, bearing four knobs, two cen- 

 tral, on short footstalks. Brazil. 



Genus. TBTTIGONIA. Distance between ocelli and ocelli 

 and eyes equal. 



Section. DIMERA.Tzr&i two-jointed. Wing* partly 

 with cells. Antenna: moderate. 



