63 



F. W. GoDiNG. —A synopsis of the subfamilies an i^ genera of the Mem- 

 braddae of North America. <Tran8. Amer. Entom. Soc, 1892, 

 pp. 253-260. 



PSTLLID^. 



Franz LOw. — Zur Systematik der Psylloden. <Verh. d. k. k. zool.- 

 bot. Ges. in Wien, 1878, pp. 585-610. 



Characteristics and tables of the European subfamilies and genera. Super- 

 sedes all previous classifications. 



W. H. AsHMEAD. — On the Aphididse of Florida, with descriptions of 

 new species. Family Psyllidse. <Can. Entom., Vol. XIII, 1881, 

 pp. 220-225. 



Gives a list of the North American species, with descriptions of several new 

 ones. 



C. V. Riley. — Notes on North American Psyllidse. <Proc. Biolog. 

 Soc. Wash., Vol. II, 1884, pp. 67-79. 



A classified list of the North American Psyllidse hitherto described, with 

 short characteristics of the subfamilies, and descriptions of some new 

 genera and species. 



C. W. Mally. — ^Psyllidse found at Ames. <Proc. Iowa Acad. Sci., 

 Vol. II (1894), pp. 152-171, 3 pis. 



A list of the described species, with a few additions. 



APHIDIDJE. 



Benjamin D. Walbh. — On the genera of Aphidae found in the United 

 States. <Proc. Entom. Soc. Phila., Vol. I, 1861-1863, pp. 294- 

 310. 

 Cyrus Thomas. — Notes of the Plant-lice found in the United States. 

 <Trans. 111. Hortic. Soc, 1877, pp. 137-212. 



A review of the family, including the Psyllidse; reproduces the descriptions 

 of earlier authors, and adds descriptions of new species. 



Gyrus Thomas. ^A list of the species of the tribe Aphidini, family 

 Aphidse, found in the United States, which have been heretofore 

 named, with descriptions of some new species. <Bul. No. 2, 

 III. St. Labor, Nat. Hist., 1878, pp., 3-16. 



C. V. Riley and J. Monell. — Notes on the Aphididse of the United 

 States, with descriptions of species occurring west of the Missis- 

 sippi. <Bul. U. S. Geolog. and Geogr. Survey of the Territo- 

 ries, Vol. V, No. 1, 1879, pp. 1-32, 2 pis. 



Riley gives the biology and description of several Pemphiginse; Monell, 

 descriptions, with occasional tables, of a number of Aphidinse. 



Cyrus Thomas. — Eighth Report of the State Entomologist on the 

 noxious and beneficial insects of the State of Illinois. <Third 

 Annual Report,' by Cyrus Thomas, Springfield, 1879. 



The report treats wholly on the Aphididse of the United States and is an 

 enlai^ement of the author's paper ia the Tvms, 111. Hortic. Soc, 1877. 



