82 PSYCHE [April 



oblique converging posteriorly; a smaller spot on each side of dorsum of metathorax 

 posteriorly; a transverse spot on dorsum of abdomen just anterior to variform orifice; and a 

 border along the posterior margin of the operculum. In addition to these clearly defined 

 markings, there may be slight tinges of black elsewhere, seen soon after emergence from 

 pupa case but later hidden by the flour-like w^ax secretion. When mounted in balsam the 

 thorax appears of a deep orange yellow color with brownish markings, and the abdomen 

 pale yellow in color with brownish markings. 



In the Can, ent. vol. 31, p. 1-4, Professor Quaintance described A. moH horn 

 Tampa, Fla., on mulberry, and from Lake City, Fla., on Tt/m amen'cana, Callicarpa 

 america?ia, Liquidafnber styraciflua, Ilex opaca and less frequently on Persia caroH- 

 nensis. The pupae and adults of A. mori maculata agree with Professor Quaint- 

 ance's description of A. mori except for the color of the bodies of the adults which 

 in the latter is bright yellow. Hundreds of adults of the former have been bred 

 and the blackish markings described above have been found to be constant. 



This subspecies seems to have a wide range of food plants and to be gener- 

 ally distributed in this vicinity. It has been found on Cornus fiorida, C. sanguifieus, 

 ash, birch, and mulberry, but was not found on Tilia americana or Liquidamber 

 styraciflua although these trees grew in the neighborhood of the species of Cornus 

 upon whose leaves this insect was quite abundant. Cornus seems to be the favor- 

 ite food plant, although even on that plant rarely more than one half dozen pupae 

 are found on a single leaf. 



Types of pupae and adults have been deposited at the Massachusetts agricul- 

 tural college. 



2. Aleyrodes forbesii Ashmead. 



A. aceris Forbes, 14th rept. 111. state ent., p. no. (1884.) 



A, forbesii Ashmead, Bull. 45 U. S. nat. mus., p. 294. (1893.) 



A. forbesii Quaintance, U. S. dept. agric. Div. ent. Bull. Tech. ser. 8, p. 15, 



27. (1900.) 



A single specimen of the pupa of this species was found on maple, Acer dasy- 



carpiDti, and a few very large adult Aleyrodes which I took to be of this species 



were seen on near-by leaves. 



3. Aleyrodes vaporariorum Westw. 



Gardener's Chronicle, 1856, p. 852. Signoret, Ann. soc. ent. France, Dec. 

 1868, p. 387. Quaintance, U. S. dept. agric. Div. ent. Bull. Tech. ser. 8, p. 16, 39 

 (1900). Britton, Bull. 140 Conn. exp. station (1902). Morrill, Can. ent. vol. 35, 

 p. 25, 26 (1903). 



This species is found rarely out of doors in this locality. It was observed last 

 summer on butternut, nasturtiums, maple, tomato, and tobacco. It has a wide 

 range of food plants in the green house, more than fifty being recorded by Britton. 



