58 PARASITES OF THE COTTON BOLL WEEVIL. 
Page. 
Determinate growth, factor in control of boll weevil.............!-..-....--.-- : 3 
Dinotus'sp.; parasite of Magdalistenescens!: 3. Aer ee ol oe eee ee 43 
Dryness and sunlight favorable to parasitism of boll weevil! See ee 22 
Dryocetes autographus, host of Spathius canadensis............----.------+----- 44 
Empusa (Entomophthora) spherosperma, fungous disease of Phytonomus punc- 
LAEUS s DIRe ee SER aR SASS terete apse ee ole S sister wa ee ve )s wiewicke oe wiele ae ben seers 4] 
Entedon lithocolletidis, parasite of Anthonomus nigrinus......-....----+-+------ 43 
Entomophthora phytonomi, fungous enemy of Phytonomus punctatus..........-- 41 
sphxrosperma. (See Empusa [Entomophthora] sphxrosperma.) 
Epicerus imbricatus, host of Sporotrichum globuliferum.....-....-..-.-------+-- 41 
Eupelmus cyaniceps— Cerambycobius\eyaniceps: 2 3-22-25 cee eis se ee ee 11 
Bury ton ;localivationver’ co.cc cee roars 2 eee ee eet hee nee Oa eee ee 49 
magdalidis, parasite of Magdalis armicollis............------------- 42 
species parasitic on-bollweeval 22-4. oocth ee eee ee eee oe ee 11 
tylodermatis, accidental parasite of Bracon mellitor.........--- 28, 34, 35-36 
biological motests< 25 Aatee Se ee ee eee eee 34 
center of activity as boll weevil parasite............-- 9 
geographical and seasonal distribution...........-.-- . o1-32 
hosts, Waste s-seee Jers Se SE ee ee De ee ees 42 
hyperparasite of boll weevil..........-..-...---- 28, 34, 35-36 
localizations: tia seer esse Leese eee ee Cee ee 49 
@CCUETENCE as pe oe Boa ee Se Re ee 29, 30 
parasite of ‘Anthonomus disjunetis:.<.- 22 222 e sewer 46 
SGUGMLOSUSE = teen eee eee 46 
A pron scynipes ae Te ok, eae ee 42 
boll weewnle scl SIE B= See a ee eee 127 
bud, flower, pod, and stem weevils. ......- 48 
isGUSNSCrODUCOLLISe seer eee 25, 26, 27, 45 
Orthoris \Giotchtt. 6s 222 een 47 
Tyloderma foveolatumocs:. 229. 220s A a see 47 
rotation f+ hostesses Re Ee ah epee 49 
Examination work-on ‘parasites of boll’ weewil (25212 22 222.22 3.) ee ee 11-22 
Formica fusca subpolita perpilosa, enemy of boll weevil................------- 28 
Fungous enemies of boll weevil. (See Aspergillus sp. and Cordyceps sp.) 
Epicexrus imbricatus. (See Sporotrichum globuliferum.) 
Phytonomus punctatus. (See Empusa [Entomophthora] 
sphxrosperma and Entomophthora Reese x 
Galpinsia hartwegi, food plant of Auletes tenwipes........-..-.-.--------------- 47 
Geographical considerations governing parasitism of boll weevil........--.----- 18-19 
Glyptomorpha lai, parasite of Inxzus scrobicollis.........-....------------------ 44 
mavaritus, parasite of Kigus scrobicollis. 2232-52 s2-2- = 22 = 22 ee 44 
novitus, parasite iol Ligus musculis: sess. Poss se oe ee 44 
rugator, parasite of Lixus concavus and L. musculus......-..----- 44 
Grapevine, food plant of Ampeloglypter sésostris.........---..--+--------- ae 47 
Grindelia squarrosa, food plant of Anthonomus syuamosus.....-.--------------- 46 
nuda, food plant of Anthonomus squamosus.......--------- 34-39 
Heat and dryness, factor in ‘control of boll weevil. >2 - 220. -422 52222 52-2 eee 3 
Helianthus, occurrence with reference to that of Eurytoma tylodermatis.........- 49 
Heterotheca subaxillaris, food plant of Anthonomus disjunctus........-.------ 34, 37, 46 
occurrence with reference to that of Cerambycobius. - - 49 
Hibernation of boll weevil parasites in bolls...............------------------ 12 
Eickory, food plant. of ‘Conotrachelus ayinisai--co-2-)-s-- 2 22s a 40 
nut weevil. (See Conotrachelus affinis.) 
