628 



INDEX. 



Cylas formicarius (Sweet Potato 



Weevil), intercepted on sweet 



potatoes in California, 100 ; legis- 

 lation against, in Florida, 40 ; 



bionomics and control of, in 



West Indies, 188 ; measures 



against, on sweet potatoes in 



Philippines, 261 ; bionomics and 



control of, in U.S.A., 254, 267, 



373, 414, 453. 

 Cylas tiireipennii^ , on sweet potatoes 



in U.S.A., 254. 

 cylindrica, Fhytoecia ; Sphaero- 



phoria. 

 Cylindrotoma splendens (Leaf-eating 



Crane-fly), on Trautvetteria gran- 



dis in A'^ancouver, 289. 

 Gyllene antennatus, in mesquite in 



California, 397. 

 Cyllene robiniae (Locust Borer), in 



Eobinia pseudacacia in Canada, 



62. 

 Cymatodera aethiops, in U.S.A., 



19. 

 Cynips gallae-tinctoriae, commercial 



uses of galls of, 244. 

 Cynips hiingarica, use of galls of, 



for tanning, 244. 

 Cynips insana, commercial uses of 



galls of, 244. 

 Cynips hollari, commercial uses of 



galls of, 244. 

 Cynips lignicola, use of galls of, 



for tanning, 244. 

 Cynips polycera, use of galls of, 



for medicine, 244. 

 Cynips quercus-calycis, commercial 



uses of galls of, 244. 

 Cynips quercus-folii, use of galls of, 



for medicine, 244. 

 Cynips quercus-petioli, use of galls 



of, for dyeing, 244. 

 Cynips quercus-ioza^, use of galls of, 



for medicine, 244. 

 Cynips theophrastae, use of galls of, 



as fuel for lamps by tlie ancient 



Greeks, 244. 

 Cynodon dactylon (Dub Grass), 



Pemphigus cynodonti on, in 



Lahore, 473. 

 cynodonti, Pemphigus. 

 Cynomeira cauliflora, pests of, in 



Java, 232, 233. 

 Cynomeira ramiflora, not attacked 



by Acrocercops cramerella in Java, 



232. 

 cyntJiia, Attacus. 



Cyperus iria, Chilo simplex hiber- 

 nating in, in Japan, 234. 

 Cyphus pudens; on limes in St. 



Lucia, 516. 

 Cypress, Megastigmus ivachtU in 



seeds of, in Austria, 407 ; Stic- 



tolobus trilineatus on, in Louisiana, 



298. 



Cyprus, campaign against Cydia 

 pomonella in, 383 ; control of 

 Dociosiaurus maroccanus in, 119. 



Cyrenaica, Dictyothrips aegyptiacus 

 on vines in, 438. . 



Cyrtacanthacris nigricornis, in Dutch. 

 E. Indies, 350, 378, 446; use of 

 Metarrhizium anisopliae against, 

 378, 446. 



Cyrtacanthacris septemfasciata (Mi- 

 gratory Red Locust), not present 

 in S. Africa in 1916-1917, 358. 



cyrtopeltis, Stethoconus (see S. mamil- 

 losus). 



Cyrtosperma senegalense, food-plant 

 of Helopeltis bergrothi in Belgian 

 Congo, 80. 



Cyrtotrachelus longipes, bionomics 

 of, on edible bamboos in Formosa, 

 402. 



Cytisits laburnum, Exapate congela- 

 tella on, in Sweden, 149. 



D. 



Daceton armigerum, on cacao, in Br. 

 Guiana, 386. 



dactyliperda, Coccotrypes. 



Dactylopius, on cacao in Belgian 

 Congo, 80. 



Dactylopius adonidum (see Pseudo- 

 coccus). 



Dactylopius obtasus, control of, on 

 citrus in Zanzibar, 128. 



Dacus brevistylus, in Cucurbitaceae 

 in Zanzibar, 128. 



Dacus cucurbitae (Melon Fly), inter- 

 cepted on cucumbers in Cali- 

 fornia, 137 ; infesting tomatoes in 

 Hawaii, 552 ; establishment of 

 parasites of, in Hawaii, 69, 127, 

 161, 225, 275, 357, 400, 476, 518, 

 542 ; not attracted by citronella 

 oil in India and Ceylon, 423 ; 

 legislation against, in Japan, 

 520 ; importance of preventing 

 introduction of, into U.S.A., 

 297. 



Dacus dicersus (Three-striped Fruit- 

 fly), experiments in trapping, 

 with oils in India, 423. 



Dacus ferrugineus (Mango Fruit - 

 fly), experiments in trapping, 

 with oils in India, 423. 



Dacus oleae (Olive Fly), on olives 

 in N. Africa, 39, 344 ; importation 

 of Opius concolor into Italy 

 against, 256; measures against, 

 on olives in Spain, 56, 272. 



Dacus passijlorae, on mandarin 

 oranges in Fiji, 237. 



Dacus punctatijrons, dn Cucurbi- 

 taceae in Zanzibar, 128. 



Dacus vertebratus, on Cucurbitaceae 

 in Zanzibar, 128. 



