COMPENDIUM OF .GENERIC DISTINCTIONS. 



791 



Family. RUTELIDJE. Antennae ten-jointed ; club three- 

 joinU'd. Mandibles short, horny, notched on outer edge 

 near tip. Maxillae short, with several teeth. Elytra not 

 reaching to end of abdomen. 



Genus. CHRYSOPHORA. Hind legs of male with broad 

 thighs, and tibia}. armed with long triangular spur, turned 

 inwards. Peru. 



Family. DYNASTID.E. Head or thorax, or both, 

 horned or tuberculated in males. Clypeus small and tri- 

 angular, pointed or toothed in front. Jaws strong, horny, 

 toothed. Antennae ten-jointed, club three-jointed. 



Genus. CHELORHINA. Thorax not horned. Head three- 

 horned, the centre horn projecting, curved upwards, and 

 two-cleft at tip. Tropics. 



Section. PRIOCERATA. Antennae serrated. 

 Stirps. MA CROSTERXL Thorax large and long. 



Family. BUPRESTID.ZE. Body long; tips of elytra 

 often toothed. Head very short ; antennae serrated. Tarsi 

 short. 



Genus. CHRYSOCHROA. Thorax very broad in middle, 

 narrowing to neck. Eyes large. Elytra narrowing behind. 

 Colours always brilliant. India. 



Family. ELATERIDJE. Body hard; antennae short and 

 serrated ; head sunk in thorax as far as eyes. Thorax with 

 Hinder angles lengthened at spines. Limbs very short. 



Genus. PYHOPHORUS. Antennas rather stout ; elytra 

 sharply pointed. Light-emitting spot near each hinder 

 angle of thorax, and two more under elytra. Brazil. 



Stirps. APROSTERNI. Thorax moderate; body 

 mostly soft. 



Family. LAMPYRIDJE. Body long and flat ; 

 small ; thorax extending over head ; antennas often toothed 

 or serrated. 



Genus. LAMPYRIS. No beak to head, which is covered 

 by thorax. Female wingless. 



Family. TELEPHORIDJE. Both sexes winged ; head 

 projecting. Last joint but one of the tarsi with two lobes. 



Family. PTINID1E. Body oval or cylindric. Head 

 sunk into thorax as far as eyes ; antennae longish ; thorax 

 broad in front. 



Genus. MEZIUM. Elytra globular ; thorax farrowed ; 

 wings none. 



Genvj. PTILINUS. Body cylindric. Antennae of male 

 comb- like. 



Genus. ANOBIUM. Antennae with three last joints 

 largest, last joint egg-shaped. Body longish and egg- 

 shaped. 



Section. HETEROM ERA. Four front tarsi five- 

 jointed, last pair four-jointed. 



Family. PYROCHROIDJE. Body flattened ; neck dis- 

 tinct ; front part of body narrow. Abdomen broader than 

 thorax, rounded at tip. Antennae of males serrated. 



Genus. PYROCHROA. Antennas larger than head and 

 thorax ; comb-like in male. 



Family. MORDELLID2E. Body elevated and arched; 

 head very low. 



Genus. RIPIPHOBUS. Scutellum concealed ; antennae 

 of male comb-like. 



Family. CANTHAKID.ZE. Head wide behind eyes, then 

 narrowed to short neck. Supplementary claws to tarsi. 

 Abdomen soft ; thorax narrow behind. 



Genus. CANTHARIS. Narrow, two wings ; elytra long. 



Genus. SITARIS. Elytra nan-owed, not overlapping ; 

 wings two. Antennae simple. 



Genus. MELOE. Elytra short, overlapping. Whigs none. 

 Antennae various. 



Section. ATRACHELIA. Hinder part of head very 

 wice, sunk into thorax as fur as eyes. Elytra firm ; joint* 

 of tarsi not widened. 



Famili,. TENEBRIONIDJE. Elytra free, wings for 

 flight. Thorax as wide behind as base of elytra. 



Genus. TENEBRIO. Narrow, long ; thorax squared ; 

 antennae thread-like. 



Section. PSEUDOTETRAMERA. Fourth joint 

 of tarsi very minute. 



Stirps. RHYNCHOPORA.Hend produced into long 

 beak. Antennae short and mostly elbowed. 



Family. BRTJCHIDJE. Beak short, broad, flat. 



Genus. BRUCHUS. Antennae often toothed, slender, 

 sometimes thicker towards tips. Elytra squared and oblong. 



Family. ATTELABID.ZE. Antennae not elbowed ; beak 

 mostly curved and cylindrical. 



Genus. RHYNCHITES. Antennae straight, eleven-jointed. 

 Neck thick ; beak wide at tip. 



Family. CURCTTLIONID.2E. Antennae elbowed ; basal 

 joint long, club at tip. Jaws at end of beak. 



Genus. BALANINUS. Body triangular. Beak nearly or 

 quite as long as body ; antennae set behind middle of beak. 



Genus. CALANDRA. Antennae nine-jointed, faniculus 

 six-jointed. 



Genus. EUPHOLUS. Antennae moderate. Beak short, 

 thick, nearly straight. Eyes round. Elytra nearly cylin- 

 drical. Tarsi large. New Guinea. 



Family. SCOLYTID2E. Beak short, third joint of tar- 

 sus two-lobed. Body cylindric or oblong, rounded above. 

 Antennas with basal-joint long, end-joints forming a kind of 

 solid mass. 



Genus. SCOLYTUS. Body truncated behind. Funicul.is 

 of antennas six-jointed. 



Section. LONG IGOR NES- Antennae very lonp, 

 sometimes serrated or tufted. Body long, rather flattened ; 

 elytra broader than thorax. Head short, not beaked. Legs- 

 long. 



Family. PRIONID^B. Head not narrowed into neck. 

 Mandibles very large and strong. Antennae inserted be- 

 tween base of mandibles and eyes. 



Genus. XENOCERUS. Antennae enormously long. Beak 

 short, wide and bent. Eyes scooped. Thorax rather long, or 

 transverse ; stripe before base. Elytra rather cylindrical. 



Family. CERAMBYCID5!. Eyes semilunar or kidney- 

 shaped. Antennae inserted close to eyes, not serrated. 

 Body long. 



Genus. CERAMBYX. Body rather rounded, no spines on 

 antennae. Cross wrinkles on thorax. 



Genus. CLYTUS. Thorax globular, not armed. Antennas 

 homed ; elytra entire at tip. 



Genus. DISAULAX. Thorax rounded, wide in middle. 

 Antennas densely tufted in middle. 



Section. PHYTOPHAGA. Body thick, oval, round, 

 or squared. Head short, sunk to eyes in abdomen. An- 

 tennas short. 



Family. CASSIDID.S3. Body flattened and broad. 

 Mouth under head ; body oval or round. 



Genus. CASSIDA. Rounded, flat beneath ; mouth con- 

 cealed by part of thorax ; head covered by thorax. 



Genus. ASPIDOMORPHA. Thorax wide and shield-like. 

 Elytra rounded over body, then spread flatly. Heart-shaped 

 when united. 



Family. CHRYSOMELIDJE Antennas set widely apart. 

 Body hemispherical ; legs equal-sizod. Mandibles notched 

 at tips. 



