TECHNICAL SERIES. 21 
No. 12, Part II. Miscellaneous papers. Habits and life histories of some flies of the 
family Tabanide. By James S.Hine. pp. iv+19-38, figs. 1-12. August 29, 1906 
Price 10 cents. Postage 2 cents. 
No. 12, Part III. Miscellaneous papers. A contribution to our knowledge of the 
Thysanoptera of California. By Dudley Moulton. pp. vi+39-68, pls. I-VI. 
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No. 12, Part IV. (Supplement to Technical Series No. 1.) Miscellaneous papers. 
New genera and species of Aphelininz, with a revised table of genera. By L. O. 
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No. 12, Part V. Miscellaneous papers. The more important Aleyrodide infesting 
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orange. By A. L. Quaintance. pp. iv+89-94, figs. 23-24, pl. VII. Issued October 
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No. 12, Part VI. Miscellaneous papers. A record of results from rearings and dis- 
sections of Tachinide. By Charles H. T. Townsend. pp. iv-+95-118, figs. 25-30. 
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No. 12, Part VII. Miscellaneous papers. The orange thrips. By Dudley Moulton. 
pp. ii+119-122, pl. VIII. Issued February 11, 1909. Price 5 cents. Postage 1 
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No. 12, Part VIII. Miscellaneous papers. Biological studies on three species of 
Aphidide. By John June Davis. pp. ii+123-168, figs. 31-34. Issued February 
20, 1909. Price 10 cents. Postage 2 cents. ; 
No. 12, Part 1X. Miscellaneous papers. A new genus of Aleyrodide, with remarks 
on Aleyrodes nubifera Berger and Aleyrodes citri Riley and Howard. By A. L. 
Quaintance. pp. ii+169-174, figs. 35-36. Issued September 1, 1909. Price 5 
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No. 13. A revision of the Tyroglyphide of the United States. By Nathan Banks. 
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No. 14. The bacteria of the apiary, with special reference to bee diseases. By Ger- 
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No. 15. A revision of the Ixodoidea, or ticks, of the United States. By Nathan 
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No. 16, Part I. Papers on Coccide or scale insects. The National collection of Coc- 
cide. By C. L. Marlatt. pp. iii+1-10. Issued April 23, 1908. Price 5 cents. 
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No. 16, Part II. Papers on Coccide or scale insects. New species of Diaspine scale 
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No. 16, Part III. Papers on Coccide or scale insects. Catalogue of recently described 
Coccide. II.¢ By J. G. Sanders. pp. ii+33-60. Issued December 22, 1909. 
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No. 17, Part I. Contributions toward a monograph of the scolytid beetles. I. The 
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No. 18. (In preparation. ) 
No. 19, Part I. Technical results from the Gipsy Moth Parasite Laboratory. I. The 
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aCatalogue of recently described Coccide, 1, was published as Technical Series 12, 
Part I, 
FCir. 76] 
