COMPENDIUM OF GENERIC DISTINCTIONS. 



793 



Ger.us. ICHNEUMON. Abdomen long and egg-shaped, 

 *irst segment rough. Ovipositor not protruding. Antennae 

 simple. Outer cell of front wings complete. 



Genus. RHYSSA. Abdomen loi;g, convex, and shining. 

 Faint wrinkles across thorax. Ovipositor very long. 



Genus. MiCROdASTER. Abdomen very small. Eyes 

 hairy. Antennae eigh teen-jointed. 



Tribe. TUBULIFERA. Abdomen telescopic and re- 

 tractile at tip. Antennae elbowed. 



Family. CHRYSIDID.E. As Tribe. 



Section. AC U L EATA. Ovipositor modified into 

 sting, with poison-glands. Sting defended by two-bladed 

 sheath. 



Sub-section. IN SECT IVOR A. Front wings not folded. 

 Larva solitary. 



Family. CBABRONID.. Head long and squared. Man- 

 dibles narrow. No elongated beak. Front tibiae with a 

 combed spur. 



Genus. CRABRO. Face very wide. Antennae strongly 

 elbowed. Mandibles two, cleft at tip. Maxillary palpi with 

 six joints, labial with four. 



Genus. PHILANTHOS. Abdomen long and rather egg- 

 shaped. Cell on edge of front wings very narrow and 

 pointed. 



Family. BEMBECID.2E. Head transverse, eyes extend- 

 ing to hinder edge. Mandibles sharp, with one tooth 

 inside. End lobe of maxillae long. Tongue mostly long. 



Genus. MONEDULA. Body long, pointed at tip. An- 

 tennae set in middle of face. Tarsi with short spines. 

 Males with one or two spines in tubercles, on under surface 

 of abdomen. 



Family. SPHEGID51. Collar large, extending to base 

 of wings. Legs very long, and formed for digging. An- 

 tennae slender, often curled in females. 



Genus. POMPILUS. Thorax oblong. Antennae inserted 

 near mouth. Sting not protruding. 



Genus. CHLORION. Head as wide as thorax. Mandibles 

 toothed inside. Abdomen on footstalk. Third ring of 

 thorax transversely streaked. Hot countries, 



Family. SCOLIID.33. Collar extending to base of 

 wings. Legs short and stout. Antennae mostly short and 

 thick. Both sexes winged. 



Genus. SCOLIA. Antennae short and curled. Legs with 

 thick spines. Labium composed of three parts set in a 

 line. Hot countries. 



Family. MUTILLID/E. Females wingless. First and 

 third joints of antennae long. Mandibles notched. Sting 

 very long. 



Genus. MUTILLA. Antennae set above front edge of 

 shield. Thorax not divided. Hot countries. 



Svb-section. SO DALES. Front wings not folded. Larva 

 social. 



Family. FORMICID^!. Females much larger than males. 

 Both sexes winged ; neuters wingless. Basal joint of 

 antenna? long ; elbow sharp. Eyes not reaching to hinder 

 edge of head. 



Genus. FORMICA. Sting absent. Eyes distinct. 



Genus. PONERA. Sting large. Eyes of neuter wanting. 



Genus. MYRMECIA. Sting present. Basal joint ot' 

 antennae long. Footstalk of abdomen two-jointed. 



Sub-section. DIPLOPTERYGA. Front wings folded. 



Family. ETTMENIDJE. Solitary. No neuters. Mandibles 

 rather long. End joints of antennae often hooked in males. 

 Thorax short. Abdomen sometimes on footstalk. Legs not 

 spined. 



Genus. EUMENES. Basal segment of abdomen narrow, 

 and forming a footstalk. 



Genus. ODYNERUS. Basal segment of abdomen short, 

 rather bell-shaped. Abdomen rather conic. 



Family. VESPID.33. Shield of head nearly square. 

 Mandibles short, toothed at the tips. Antennae twelve- 

 jointed in females and neuters ; thirteen-jointed in males. 



Genus. VESPA. Abdomen egg-shaped. Mandibles 

 oblique at tip. 



Sub-section. MELLIFERA. Basal joint of last tarsi 

 formed into a spoon-like plate. Proboscis mostly present. 

 One spur on each of two front pairs of tibiae. 



Family. APID^;. Proboscis long, Bivsal joint of antennae 

 long. 



Genus. NOMADA. Body long. Marginal cell brood. 

 Maxillary palpi nix-jointed." 



Genus. CHRYSANTHEDA. Tongue long as body. No 

 pollen-basket on hind-legs. 



Genus. XYLOCOPA. Body broad, hairy. Mandibles of 

 female blunt. 



Genus. BOMBUS. Body thick, rounded, and hairy. 

 Spurs on hinder tibiae. 



Genus. APIS. Body moderately slender. No spurs on 

 hinder tibiae. 



Order. STREPSIPTERA. Front wings changed intc 

 two short twisted organs ; hinder wings very large, folded like 

 a fan. Mandibles slender. 



Order. UBPIDOPTERA. Wings four, membranous, 

 wide, covered on both sides by overlapping scales. Nerve? 

 branching. Mouth formed for suction. Tibiae spurred. 



Section. RHOPALOCERA. Antennas mostly 

 knobbed at tip. Proboscis long. 



Family. PAPILIONID^I. Legs for walking in both 

 sexes. 



Sub-family. Papilionides. Hinder inner edge of second 

 pair of wings concave or folded. Middle longitudinal nervure 

 of front wings giving out four nervures. Central cell of 

 wing closed. Club of antennae elongated. 



Genus. ORNITHOPTERA Hind-wings not tailed. Labial 

 palpi moderately short. Abdomen of male deeply grooved 

 on outer side. Indian Archipelago. 



Genus. PAPILIO. Hind-win^s tailed. Labial palpi very 

 short. 



Genus. LEPTOCIRCUS. Hinder wings folded longitudi- 

 nally, very long, slightly curved at extremity. Abdomen 

 short. Palpi very short. Java. 



Genus. THAIS. Inner edges of hinder wings deeply 

 scooped. East Indies. 



Sub-family. Pierides. Hind-wings forming a gutter for 

 the reception of the abdomen. 



Genus. PIERIS. Wings rounded, partly bare. Club of 

 antennae compressed. 



Family. HELICONIID^E. "Fore-legs small. Central 

 cell of hind-wings closed. Palpi short, and set far apart. 

 Club small. 



Genus. HELICONIA. Front wings long, narrow, entire ; 

 hinder wings narrow, receding from abdomen. All wings 

 nearly transparent. Palpi rising above head. Front tarsus 

 wide and slightly toothed. West Indies. 



Genus. LEPTALIS. Front wings curved and scooped, so 

 as to form a hook. 



Genus. MECHANITIS. Wings very long, entire. Hinder 

 wings narrow at base. Body slender. Hot countries. 



Genus. ITHONIA. Wings almost wholly transparent, 

 except round edges, and a short bar on front edge. Central 

 America. 



Genus. EUPLJBA. Front legs short and imperfect. An- 

 tennae set close together, club long and curved. Palpi short 

 thickly haired. Hot countries. 



Genus. DANAIS. Antennae very long. Palpi set apart. 

 Wings with triangular outline. Central cell of hind-wiugs 

 closed. Hot countries. 



Family. NYMPHALID^!. Fore-legs rudimentary ir. 

 both sexes, and thickly haired. Central cell of hinder wings 

 either open or closed, v/ith a very slender nerve. 



Genus. CYHESTIS. Hinder wings scooped from tip of 

 abdomen. Outer edge of front wings nearly straight. Hot 

 countries. 



_ Genus. CETHOSIA. Palpi set close, but diverging, and 

 tipped with slender extremity. Lower wings embracing 

 abdomen. Hot countries. 



Genus. AGRACJLIS. Wings scooped round hinder edges. 

 Hind- wings not tailed. Hot countries. 



Genus. MARPESIA. Front wings deeply scooped and 

 rather hooked ; hind-wings with two tails, outer three times 

 as long as inner. Hot countries. 



Genus. VANESSA. Club of antennae short. Eyes hairy. 

 Front wings angular. 



Genus. CATAGRAMMA. Wings large, rounded on hinder 

 edges. Under side of lower wings marked with rings, 

 mostly so as to form the figure 8. New World. 



Genus. NYMPHALIS. Palpi close, erect, hairy. Club 

 gradual. Hot countries. 



