63 



F. W. Coding. — A synopsis of the subfamilies and genera of the Mem- 

 bracidse of North America. <Trans. Amer. Entom. Soc. , 1892, 

 pp. 253-260. 



PSYLLID^. 



Franz Low. — Zur Systematik der Ps} r lloden. <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 Aphididge of Florida, with descriptions of 

 new species. Family Psyllida3. <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 Psjdlidee. <Proc. Biolog. 

 Soc, Wash., Vol. II, 1881:, pp. 67-79. 



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

 short characteristics of the subfamilies, and descriptions of some new 

 genera and species. 



C. W. Mally. — Psyllidre 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. 



APHIDID.E. 



Benjamin D. Walsh. — On the genera of Aphidse 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. 



Cyrus Thomas. — A list of the species of the tribe Aphidini, family 

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

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

 111. 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 Pemphigina?; Monell, 

 descriptions, with occasional tables, of a number of Aphidina?. 



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 Aphidida? of the United States and is an 

 enlargement of the author's paper in the Trans. 111. Hortic. Soc, 1877. 



