CONTENTS. 
Page. 
The timothy stem-borer, a new timothy insect ( Mordellistena ustulata Lec.) 
W. J. Phillips... 1 
PreRTVOIReEtNOME ce St cos 5 Seen aa CORES 22! 22s SN RE are Ue coe ageE 1 
CLTSVPOIN Tc og eh ae ee le een | Se ee a: a Sr oe Pe 1 
PRM RALT AOD eo oes CR aeieee ae a es Sot tei a eh teens 2 2 
aracucn Olaitackc--~. . 5 eee cee cg oe ad es ae ees ee 2 
TEL SSL TE ENNIS ORE Oe ic AERO ER ST aes See ee Eres CL 2 
Wesetiptionrof the diiierent stages: 225)... . =. 4.442550 2 4 eis ee Seek: 3 
Hie vurSLObysama gaits: -seteer st ee 2 he Boe a ek ea So ad 6 
SCR sects < SS 2 eee as = oo saa iS asin rine oe eh ame 6 
Bes ais aise ai eee CES 2 Slut hou etn atin conta ae! 6 
ite pias ase sree eg ee. Sone kaw ead sss. ts oe Le 7 
tad bt are tas eee cat are Se 2 pods Sot Tab NY Oe See 8 
ibe NGL CP a eee oe ee hs cee ae Sonn eo ale a c's HY AYRES oe 8 
Spe ta Ot see . Seer Sonn Soe ae, he ahah een Ben olan 8 
Rpeeiaatd ICRC AEC TMI re eats rte AYES OE Smee e ek | A Eze orn apis ae Ate GANS cle 9 
A ERIRoR EMI CASUILCS Pat eee res oe, cede sa pe SS oye) ais een OAS isIE 9 
The maize billbug (Sphenophorus maidis Chttn.)......-.------ E.O.G. Kelly. . 1G 
armOre (hotles oot een 2 A Pe MoS aden oa ns Se OHO 11 
History, of the species: 2.222... 2. . 5.222 -: AEDS Bea She Selita. Neon, cave ese 12 
eiiien mca NBG. ese eas REN soho atinnce beh <n Nace e ae 14 
DAS tecate ener an Rene re. ey mets Pee SL LT Se ccs Gana ee 15 
EereHay InenEN emery eu bes ee oat ae UR ot ak Saks Mehici etal del oe, ays Soe 15 
MeSeripUOR ANG lie: WISTOEVSs4 .< ~~. sens Ss aes oh Foe a ieee Se 16 
DM erOmPCUPEAMOn essa tes a 3 = SR Pe ee a ee ed es ee Sea ears 22 
ECeOra ni Gm@ ered miONs een sas a Ska tee se a ts 2 oe 42 yt ee cd bo Seen 22 
SUetMC Ciel eases Ss Mn set ee hy eo sey. = Lk esas oy oe OR OSE 22 
Chinch-bug investigations west of the Mississippi River. 
E. 0. G. Kelly and T. H. Parks.. 23 
Rig COU emea ee note ciate s kone a ee eMer mR wer L I das he 5 ates 23 
[LSS DITO, Sens 2 eR = eR a ae a 23 
Mesempiuon and mumiber of peneratong.: . 22.22.2224. 52-- =. 220 se he deeen 24 
nL SIE GRBUDISL 2 cade pee pa gn ie ec OS PR Eee 24 
Status of the chinch-bug problem in Kansas, Missouri, and Oklahoma . . -. 26 
Southern Kansas and northern Oklahoma, 1910..............-------- 29 
ATI SAS ae LOI eee» De Nn eres 8 oe, SS eR nl 22 t Seay aoe 30 
UTE GTET TS Cis Agog = oe pen Rd eS aS pe Se OR 32 
Rreveniivermeasures recommended ==. 22. =. 254. - 2242525 Se ee ase 36 
LE Spore.) SERVED FSV GE Si sy Toul ae ee OO epee we a Ae Benes OP 2 38 
Unmanisiicteny remedial measimees: .5- 25/52 22k 2 Sen. oes Pet a ee Gas fee 39 
Plo wan LOM AP we RIIO REG GLOU se. ej 2 sa yea a Uta acces See 39 
[RR ME RISKS UWENet cee est bee Oca a ee <x ae nea ey easton Mes xe eee = pe ee 40 
pe a SCE ON Aces onesie a Fete os ac Sens Se Ee ies SEATS ge 40 
Opserytioncby the writers. oss ose. 2 ee Ue see see's ess oe ee 4] 
PaIRUEA CRE Rees aera as < oe See oe I has 2 5. ete eae ee ac Ne site oe 50 

1 The seven papers constituting this bulletin were issued in separate form on March 31, April 22, and 
December 14, 1911, and April 10, April 22, May 31, and October 16, 1912, respectively. 
VII 
