LITERATURE REFERRED TO. 93 



XXXIV, fig. 4). Dorsum armed with four pairs of very long spines, 

 one pair on cephalic portion, one pair inserted before the vasiform 

 orifice, and two pairs near the caudal margin. Vasiform orifice 

 elliptical and transvei^e. Operculum of the shape indicated in Plate 

 XXXIV, figure 3, its greatest width being 0.03 mm. The exposed 

 portion of the lingula is short, setose, and armed with two pairs of 

 spines. 



Adult male. — The type slides of this species are dissections and of 

 the adults only the wings and claspers are represented. The fore- 

 wing (PL XXXIV, fig. 6) is 0.68 mm. long and 0.24 mm. wide, and 

 is of almost an equal width throughout. The radial sector only is 

 present, and it is irregularly thickened. Maskell figures another vein 

 in the wing, but in the types it does not exi^t and the wing is also of 

 a different foi-m from other species in Aleyrodes. The costal margin 

 is armed with curved teeth on which are small hairs (PI. XXXIV, 

 fig. 7), The claspers (PI. XXXIV, fig. 8) are imique. They are 

 short, thick, hairy, and psyllid-like. The penis is almost equal in 

 length to the claspers and slightly curved. 



LITERATURE REFERRED TO IN TEXT. 



1. Plant Louse Aleyrodes. Bui. 96, Maine Agi-. Exp. Sta., pp. 127 (1903). 



2. Mcmoires des Insects, vol. 2, p. 307 (1736). 



3. The white fly or plant louse Aleyrodes. Bui. 140. Conn. Agr. Exp. Sta. 



(1902). 



4. The woolly white fly, Bui. 64, Part VIII, Bur. Ent, U. S. Dept. Agr. (1910). 



5. Mededelingen van het Proefstation Oost. .Java, New Series, No. 37 (1897). 



6. White flies injurious to citrus in Florida. Bui. 92, Bur. Ent., U. S. Dept. 



Agi-.. pp. 57 (1911). 



7. Notes on some Aleyrodes from Massachusetts, with description of new 



species, (a) Psyche, April, 1903. (&) Tech. Bui. No. 1, Mass. Agr. Exp. 

 Sta., pp. 31-33 (1903). 



8. Proc. U. S. Nat. Mus.. vol. 27, p. 475 (1904). 



9. Proc. Ent Soc. Wash., vol. 3. p. 247 (1895). 



10. Kans. Univ. Sci. Bui., vol. 5, No. 9, p. 133 (1910). 



11. Gardeners' Chronicle, p. 852 (1856). 



12. The function of the vasiform orifice of the Aleurodidse. Journal of the 



Asiatic Society of Bengal, vol. 72, part 2, pp. 6-7 (1903). 



13. Arkiv. f. Zoologi, Bd. 3, No. 26, p. 3 (1907). 



14. Homologies of the wing veins of the AphididfB, Psyllidse, Aleurodida?, and 



Coccida?. Ann. Ent. Soc. Amer., vol. 2. p. 101 (1909). 



15. Essai monographique sur les Aleurodes. Ann. Soc. Ent. France (4) vol. 8, 



p. 383 (1.867). 



16. Tideskrift for Landbrugets Planteval, p. 288 (1909). 



17. Note on the Respiration of Alcyiodcs dtri. Can. Ent., vol. 33, pp. 173-176 



(1901). 



18. Udamoselis elne neue Aleurodiden Gattung. Zool. Anzeiger, Bd. .34, N. 7/8. 



pp. 230-233 (1909). 



19. Ann. & Mag. Nat. Hist., ser. 7. vol. 8, p. 387 (1901). 



20. Ent. Mo. Mag. (2) vol. 3, p. 32 (1892). 



21. Tech. Ser. 8, Bur. Ent., U. S. Dept. Agr. (1900). 



O 



