vi 
TABLE OF CONTENTS. 
Page 
Wetter of transmittal i:..)0a5 eS eee 0 ii 
Act to provide the entomologist with means, etc................+.. iii 
HMINANCIAl FEPOL tis ci. son. os 6 cea Se Ma's 3a ae eRe Tale alate. Geta lili 
Mable of CONGENS ::. cs cee. PSUR Se ale se erate © cas c vi 
Pnitroduction ois ose 6h... Sa wes ote in Ss Si. sD nee kd 1 
CGHINCH-DUGS dere. sisi. eS etek Ve Sie. a wold 5S Ly 3 
Vulnerable points: in theirhabits... ..2.°)- oom ae mes see 5 
Diseases of INSECTS. Fo... ae eh Ie ee ing 9 
The chinch-bug, dISCasey wir Heat. SOL ced Se er 15 
Production of spores.ona large scale. ..... 02.55 Soa weun oo eke oe 18 
Laboratory experiments and experiences................ 20000 -ee 20 
Distribution of Sporesw MI LBOSse rv. sek we vs ee oe ve ee ee 23 
Status of chinch-bugs at the present time.....................4. 25 
Map showing distribution of chinch-bugs....................... 26 
Different ways of spelling chinch-bug............ Hh sata petgek loa 27 
Bogus insecticides Aare herd'ss0 ate sole lass hee sivleaier » 1 ee 28 
Bark-beetle diseaseye iin Cosine eee ek eke oo. ee ee 31 
Bacterial disease of grasshoppers in Colorado.......... ........ 34 
Bacterial disease of cabbage-butterflies .............0.. cece eee 36 
Disease of -tent-caterpillarsaay testes tae Gh. bee eke tea ea onan eee 38 
Migratory locusts or grasshoppers. ..3.e eles. ceeres vee eek tt eee 39 
The lesser migratory locust.7Sige ye cid, Re eR We ete 42 
How the eggs. are Jaidssicns cicaw skis wasshats din arch cee ian nen 43 
‘The Pellucid locustic vances eee ee 48 
Grasshoppers near Taylor’s Falls and elsewhere................. 50 
Parasitic enemies of migratory locusts........ ede Oey ee ee 55 
The red Mites +... cc SR A fe Io eee 55 
Tachina-fliesiwi& ite DOT Boies date cette. ete Bee een 57 
Bee-f1ies . «st Ae ae Sea ee we ee 58 
Blister-beetles*ses Sei. Ha aaa ee CTE SA Pe eee 59 
Other enemies of locusts «stevie ees Jeu. BOCES nt Se eee 61 
Potato-beetles..<.. cs. aes Pe a! AE eS Ee 61 
The Colorado Potato-beetle............ 000. cee eees YALE: 23 61 
Paris-green ... Tua PEt ot eres iene eke 65 
Dry applications ...ce.e.- BS, PT ih St AR Die See 66 
Wet. application +. 2 sab deendece s occcd Jo's eee ee 66 
London-purple o:.4. 40 Poa ee enh. ie ee 67 
White arsenionssiis. tar ais ee. a ee 67 
Blister-beetles i. 04 At EN ap elies ore tite ee et. ches Geen Jaa 68 
Cabbage insect6is-5a seek se ve ewe eRa ak Se ee hes oo 6c ee 70 
Imported Cabbage-butterfiyovyr. tS ie eso CP a ee 71 
Native Cabbage-butterfly............ Misti eee, Se ee ee 71 
RemMediés hs ovis vs Cee ie EL Pe eee 74 
Wnemiess cise ve. ce. Uses ee eee cess’ keen pe ane 76 
