Tech, Series 12, Part V, Bureau of Errtomology, U. S. Dept. of Agriculture. 



Plate VII. 



Economic Aleyrodid/e. 



Fig. ]. — Aleyrodes howardi, on orange. Fig. 'i.—Aln/ro'Ics anonx. Fig. 3. — Alcyrodcs vaponirioriiiii. 



on tobacco. 



