38 CIRCULAR 16 8, U. S. DEPARTMENT OP AGRICULTURE 



List of citrus insects — Continued 





Distribution 





Distribution 



he mipteb a — continued 





hepmiptera— continued 





Cicadellidae: 





Coccidae— Continued. 





Chlorita ftarescens Fab 



J. K. F. C. 0. 



Prontaspis yanonensis Kuw 



J. C. 



Idiocerus clypealis 



F. 



Pseudaonidia duplex Ckll 



J. 



Idiocerus nireosparsus 



F. 



Pseudococcus citri Risso 



J. F. C. 



Motschulskia citri Mats 



J. 



Pseudococcus spp 



J.F. 



Tartessus ferrugineus Wlk 



J. F. C. 



Puhinaria aurantii Ckll 



J. 



Tettigoniella ferruginea apicalis 





Saissetia hemisphaerica Targ 



J.F. C. 



Wlk 



J. K. F. C. 



Saissetia oleae Bern 



J. F. 



Tettigoniella riridis L 



J. F. C. 0. 



Takahashia citricola Kuw 



J. 



Fulgoridae: 





Takahashia japonica Ckll 



J. K. F. 



Geisha distinctissima Wlk 



J. F. C. 0. 



Aphiidae: 





Mesepora onukii Mats 



F. 



Aphis citricidis Kirk 



J. K. F. 



Chermidae: 





Aphis gossypii Glov 



J. K. F. C. 



Diaphorina citri Kuway 



F. C. 



Aphis somei E. and K 



J. 



Psylla coccinea Kuway 



J. 



Aphis tavaresi Del Guercio 



F. 



Coccidae: 





Omyzus persicae Sulz 



J. K. F. 



Aspidiotus perniciosus Comst.. 



J. K. C. 



Toxoptera aurantii Boyer 



J.F. 



Ceroplastes ceriferus And 



J. F. C. 



Toxoptera cilrifolia Maki 



F. 



Ceroplastes floridensis Com.st.-_ 



J. F. 



Aleyrodidae: 





Ceroplastes rubens Mask 



J. F. C. 



Aleurocanthus spiniferus Q 



J. C. 



Chrysomphalus aonidum L 



J. F. 0. 



Aleurocanthus sp 



J. 



Chrysomphalus aurantii Mask., 



J. F. C. 0. 



Aleurodes giffardi Kotinsky 



J. 



Chrysomphalus aurantii citrinus 





Aleurolobus marlatti Q 



J. F. 



Coq. 



J. 



Dialeurodes citri Ashm 



J.F. 



Coccus elongatus Sign 



F C 







Coccus hesperidum L 



J. F. C. 



ISOPTERA 





Coccus pseudomagnoliarum 









Kuw 



J. 0. 



Termitidae: 





Hemichionaspis aspidistrae 





Termes formosanus Shir. -. 



F. C. 0. 



Sign 



J. 







Icerya aegyptiacum Doug 



F. 



ORTHOPTERA 





Icerya purchasi Mask 



J. F. C. 0. 







Icerya seychellarum "ft estvr 



J. F. C. 



Gryllidae: 





Lepidosaphes beckii Xewin 



J.F. 



Brachytrypes portentosus Licht. 



K. F. C. 



Lepidosaphes gloverii Pack 



J. F. C. 







Lepidosaphes pallida Green 



J.F. 



ACABIN'A 





Leucaspis japonica Ckll 



J. 







Parlatoria pergandii Comst 



J. F. C. 



' Eriophyidae: 





Parlatoria theae Ckll 



J 



Paratetranychus citri MacG 



Phyllocoptes oleivorus Ashm 



J. 



Parlatoria zizyphus Lucas 



J. F. C. 0. 



J.F. C. 



THE PRINCIPAL CITRUS INSECTS 



In addition to the three noctuid moths recorded in the previous 

 paper as attacking citrus fruits, one other is added in the foregoing 

 list. Calpe (Oraesia) excavata and C. capucina are recorded from 

 Honshu, Shikoku. and Kyushu in Japan proper and from Chosen 

 and China, pluderes tyrannus from all of the islands of Japan and 

 from Chosen, China, and India, while Othreis fullonica is recorded 

 from southern Japan, Chosen, Taiwan, China, and India. In India 

 the last-named species is a most serious pest in all of the citrus-pro- 

 ducing sections, the annual loss ranging from 20 to 40 per cent. 



The above species of Xoctuidae are injurious primarily through 

 the feeding of the adults upon the fruit causing it to drop prema- 

 turely, whereas the three remaining species, Dermdleipa juno, Tira- 

 cola plagiata, and Prodenia Jitura. feed in the larval stage upon the 

 foliage, preferring the young shoots and newly developed leaves. 



The Lymantriidae cited in the list are all from Taiwan and nor- 

 mally are of little consequence as citrus pests. Occasionally in the 

 case of orchards adjoining uncultivated areas a species will become 

 numerous, but this attack is of short duration, and the injury not 

 great. The most common one is Eu proof is fav'tnata, which occurs 

 also in China. There are several generations of this species each 

 year. The eggs are laid en masse upon the foliage, and pupation 



