Pr 
ILLUSTRATIONS. 
PLATES. 
Trees sprayed with crude petroleum and trees sprayed with lime, sul- 
phurvrand saltiwash 2-252. i526: tae ee eee ee eee ee 
Plum tree sprayed with heavy lime wash..-.-.-..---.----------- ee 
TEXT FIGURES. 
Melanoplis differentials. =. . .s eon coe Bee eee eee eee 
Melanoplus differentialis: ootheca or egg case..-...------------------- 
Grasshopper'eggs exposed by cultivation 3222-2 = 2222. 25222 = eee 
‘Patterson tarred sheet =! 252. eee aes e Ale ee oe eee 
Hopperdozer: fr. .20/0 oie eee eg Se ee ee 
Trombidium locustarum: female, newly hatched larva, egg, eggshells. - 
Trombidium locustarum: mature larva, pupa, male and female adult. - - 
Macrobasis unicolor: female, male antenna. :.- =... -----.-J5e22--S2e-- 
Sarcophaga sarracenex: larva, puparium, adult.........---.--.------- 
Sarcophaga assiduaz*larva, puparium,; adult? ..5:-2-- 522 Sseee- eee 
Euphorocera claripennis: adult, puparium......-..-.-- ----2--+------ 
Tacha cxsar 222030 AA SS ea ee 
Schnstocerca americana: aguilives= = ooo ss 266 2 as ee a ae ee 
Schistocerca ovscura:) aGUtze ee ae ee ee ee eee 
Scjistocerca,obscurasaitth: StgeC = ae ses ae ae ee 
Dichyjophorus reticulatus: adult: 28) se eee 
Musca. domestica: puparium, adult, Warva--- 222 2.225642 =2 eee 
Drosophila ampelophila: adult, puparium, larva..--....-------------- 
Homalomyia brevis: female, male, larva.....-.----------------------- 
Stomomys calcitrans: ‘adult Varva, pupariuims: 252225252255 eee 
Scatophaga furcatas maleteqs gocce Awe sees Oe ee 
Morelia means: adult, pupariumss=22 S222 seen eee 
Plathypena scabra: moth, wings expanded and wings folded, larva, e 
milion siniata: aaulty Wyma) se oes ea ae oe en re 
mila smnuata: developmentalistages© 22 2-. =24. 5-2 ua. ee ee 
Ophion antankaruss willis Of 2222222 eec sess eee eae = ee 
oS 
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