CONTENT Ss 
Page 
_TEUUVEI/G TG) IO) is Ale RR A ae epee ee SP ee A ay er tare ee ee Pe 1 
[5 HED ES02 deed amine ear iree is Parc Fen Re eg eek Mae akpe Ra ole pa ch ee eR ue ea TAN l 
TES GITLIUTIT OO gO epee a Pe te oie elo eg Sey ane Pane LE Sr 2 
Biramerenot atie@ke 4320. son ws Se ae Oe en eee 2 
OREO Lanter ie ere ae eta ey MG ON eles, lh! hI Ben es ne Ly oe Ses eae 2 
DesenyriHoth ob tne diiferent stares. ie 4s... fs. jn Seaties tocet eg avid: Seed on: 3 
Dinas feted Ra Ae Mier Sas aan ers ee Seen Baa Orns ee 3 
PUR ORL eile viene Ort ey Cae Ae ee) etna AOL WE 2 ein bs ae ae oo be 3 
INN (OUP Sos ceneecesoce Se Tate OE ee eee ete ne ee ee 5 
“Snes 2 INU ie eS Sa Ne a 2 ee 2k ee ar Oa 6 
AE RrCmnict One ATMA Dis.) an 28 sre eee ao Mere ee oe a Poses Sab eae ee bet 6 
LSS GO IIe EAE Aa eb yer 1s SON Oe nee aed ee ae oR 6 
UNV E TET gs AR eG agli allel i OL a AE ee eg Re Pe 6 
ihe movements of the larva inethe stem: 225.222.4452 J. s.seaehe ss: 6 
The movements of the larva outside the stem.........-....-.----.---- 7 
Na eg MR [eer aos a Hn she a a yas ton hc Gre loth ie a 7 
‘fhe movements of the pupa. im the sfem.....--...-------:-22s-ss5-< 7 
The movements of the pupa outside the stem.................-..----- 8 
Piteerenenialite tae se edna ee Se Sc). Saat Se Lge s ha ne oe eee oe 8 
NTERE: (OSG LER Se on ee Re En ee eee, Sener tat. 9 8 
enetncotuibe several stigese sce... Sto. abd eS ee ace es 2s Maes 8 
Spore GLO Maree ea a et as oS A Ae es OS xian dates ES 8 
Berra NCTC MM CS) Mates = eR eget al. ws SG ae A Reo Se SS Pa oe eee 9 
2 ETT OG MPSS a ate IST oe a i ele OPS ae nn 9 
PAU Spine er OeN Ss: 
PLATE. 
Page. 
Puate I. The timothy stem-borer (Mordellistena ustulata): Larve and pupa 
NURS LC TINS eres apc pervet ene ik Bie lsh Caeenasla wie e Melee eee Ee toate 8 
TEXT FIGURES. 
Fic. 1. The timothy stem-borer (Mordellistena ustulata): Adult .......-..-.---- 2 
2. Thextimothy-stem-borer: Wee. 6254." de oe ae o= 6 aes eas se dees 3 
3. the timothy stem-borer: Larva and details: ...2.--: 22.2.5... ++. 5+ < 3 
4. The timothy stem-borer: Pupa and details..........-.-...------+----- 5 
75063°—11 Ill 
