(i-.'s 



COMPENDIUM OF GENERIC DISTINCTIONS. 



Section. ATRACHELIA. Hinder part of head very 

 wide, sunk into thorax as far as eyes. Elytra firm; joints of 

 tarsi not widened. 



Family. TENEBRIONIDJE.— Klytra free, wings for flight. 

 Thorax as wide behind as base of elytra. 



(fenus. Tekebrio. — Narrow, long; thorax squared; antennae 

 thread-like. 



Section. PSEUDOTETRAM ERA. - Fourth joint <.f 

 tarsi very minute. 



Slii-ps. RHYXCHOPORA.—Hea.d produced int.. long beak. 

 Antennae short and mostly elbowed. 



Family. BBUCHIDJE. -Beak short, broad, flat. 

 licuiiy. Brcuhus.— Antennae often toothed, slender, some- 

 times thicker towards tips. Elytra squared and oblong. 



Family. ATTELABIDJE. -Antennae not elbowed; beak mostly 

 curved and cylindrical. 



Genua. Khvnciiitks. — Antennae straight, eleven- jointed. 

 Neck thick; beak wide at tip. 



Family. CURCULIONIDJE.— Antenna' elbowed; basal joint 

 long, club at tip. .laws 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, funiculus six- 

 jointed. 



Gnats. Eupholtjs. — Antennae moderate. Beak short, thick, 

 in arly straight. Eyes round. Elytra nearly cylindrical. Tar. i 

 large. New Guinea. 



Family. SCOLYTIDS..— Beak short, third joint of tarsus two- 

 lobed. Body cylindric or oblong, rounded above. Antennae 

 with basal-joint long, end-joints forming a kind of solid mass. 



Genus. Scolytus. — Body truncated behind. Funiculus of 

 antennae six-jointed. 



Section. LONG1CORNES. -Antennae very long, some- 

 times serrated or tufted. Body long, rather flattened; elytra 

 broader than thorax. Head short, not beaked. Legs long. 



Fa, niiy. PRI0NID2E.— Head not narrowed into neek, Man- 

 dibles very large and strong. Antenna; inserted between base 

 of mandibles and eyes. 



Genus. Xknocerus. — Antennae enormously long. Beakshort, 

 wide and bent. Eyes scooped. Thorax rather long, or trans- 

 verse; stripe before base. Elytra rather cylindrical. 



Family. CERAMBYCIDJE.— Eyes semilunar or kidney-shaped. 



Antenna* inserted close to eye's, not seriated. Body long. 



Goats. Cerambyx. — Body rather rounded, no spines on an- 

 tenna 1 . Cross wrinkles on thorax. 



Genus. Ci.rTrs. — Thorax globular, not armed. Antenna 1 

 homed; elytra entire at tip. 



Genu*. Disvri.vx. — Thorax rounded, wide in middle. Au- 

 tenine dnsely tufted in middle. 



Section. PHYTOPHACA. -Body thick, oval, round, or 

 squared. Head short, sunk to eyes in abdomen. Antenna? 

 short. 



Family. CASSIDIDiE.— Body flattened and broad. Mouth 

 under head; body oval or round. 



Genus. CeHin, — Rounded, flat beneath; mouth concealed 

 by part of tie, rax; head covered by thorax. 



Gemts. AsrnmMoRPUA.— Thorax wide and shield like. Ely- 

 tra rounded over body, then spread flatly. Heart shaped when 

 Minted. 



Family. CHRYSOMELIEiE.— Antennae set widely apart. 

 Body hemispherical; legs equal-sized. Mandibles notched at 



tips.' 



Genus. ClIRYSOMELA. — Winged; palpi hatchet-shaped. 

 Genus. Tim ikch v. —Wingless; elvtra soldered. 



Section. PS EU DOT RIM ERA.- Third joint of tarsi 

 minute, recurved between the two lobes of second joint. Elytra 

 covering abdomen. 



Family. COCCINELLID-E. Body convex and hemispherical. 

 Thorax short and transverse. Second joint of tarsi large. 

 Genus. Coccinklla.— Hinder angles of thorax sharp. 



Order. DERMA PT ERA. -Front wings leathery, small; suture 

 straight, partly covering large hinder wings. Forceps at end 

 of tail. Pupa resembling perfect insect, but without wings. 



Family.— As Order. 



Genus. Forficula. — Antennae fourteen joints; elvtra and 

 wings perfect. 



Order. ORTHOPTERA.— Front wings on elytra parchment 

 like, large, heavily veined, overlapping at tip. Hinder wings 

 large, folded longitudinally. Tail often spiked. 



Section. CURSOR I A.— Legs all for running. 



Family. BLATTIDJE.— Body oval and flat. Head small, 

 often bidden under thorax. Antenna' very long, hair-like; legs 

 spurred. Two short-jointed appendages to abdomen. 



Genus. BLATTA. —As family. 



Section. SALTATORIA.-Hind legs for leaping. 



Family. ACHETIDJE.— Antennae very long and slender. 

 Wings large, forming, when tilled, a pair of projecting spines; 

 wing-covers of male with talc-like spot at base. Both legs flat 

 on body, daws strong, with several sharp teeth. 



'ones. GryllotaLP A. —Fore-legs broad and palmed. No 

 external ovipositor. 



Genus. ACHETA. — Fore-legs not palmed. Ovipositor pro- 

 jecting. 



Family. GRYLLIDiE, — Wings and covers forming a slanting 

 roof. Ovipositor mostly flat and sabre-like. 



Genus. Phasgoxura. — Wings and covers long. Ovipositor 

 long and straight. Four short spines on end of abdomen. 



Family. LOCUSTTDiE. -No projecting ovipositor. Antennae 

 short. 



Genus. LoCUSTA. — Antenna? simple. Wings and covers 

 large. 



Section. AMBULATOR1A. -Body long and slender. 

 All legs alike. Front wings comparatively small, hinder wings 

 large. 



Family. PHASMID.E. -As section. 



Genus. PHYLLIUM. — Body flat, broad; front wings like 

 leaves; legs provided with leaf-like appendages. Antenna- of 

 male half length of body, those of female still shorter. Eart 



Indies. 



Genus. Bacteria. — Wingless. Antennae haired, larger than 

 head. Fast Indies. 



Section. RAPTOR1A. -Body long, narrow, nearly cylin- 

 drical. Abdomen broader than front of body. Head exposed. 

 Upper wings horizontal. Fore legs enormous, used for capture. 



Family. MANTIDJE. As Section. 



Order. THYSANOPTERA.— Wings four, similar, long, nar- 

 row, not folded, lying along back. Mandibles like bristles. 

 Tarsi two-jointed. 



Order. NEUROPTERA.— Wings four, large, equal. Mandi- 

 bles powerful. Ovipositor with several valves. 



Section. BIOMORPHOTICA. -Pupa active. 



Family. TERMITIDiE. -Both sexes winged. Neuters not 

 winged. Body oblong, flat. Antenna' short; mandibles flat- 

 tened, toothed, triangular. Wings nearly twice as long as 

 body. 



Genus. TerMES. — Labniin four-cleft; palpi three-jointed. 

 Tarsi four-joint,,!. Hot countries. 



Family. PERLID.E.— Hinder wings very large and folded. 

 Tarsi three-jointed. 



