Department of Entomology cxiii 



Anna Clegg Stryke. The Life-cycle of the Malarial Parasite. 

 Entomological News, Vol. 23, pp. 221-223, i plate. 



Anna Haven Morgan. Homologies in the Wing-veins of Mayflies. 

 Annals of The Entomological Society of America, Vol. 5, pp. 89-106, 

 5 plates. 



Charles P. Alexander. A Peculiar New Crane-fly from Porto Rico 

 {Tipulidae, Diptera). Psyche, Vol. 19, pp. 63-66, i plate. 



Charles P. Alexander and M. D. Leonard. \'enational Variation in 

 Cladura {Tipulidae, Diptera). Journal of the New York Entomological 

 Society, Vol. 20, pp. 36-39, i plate. 



P. E. Smith. Specific Characters Used in the Genus Pseudococciis. 

 Annals of The Entomological Society of America, \'ol. 4, pp. 309-327. 



Henry E. Ewing. The Origin and Significance of Parasitism in the 

 Acarina. Transactions of The Academy of Science of St. Louis, Vol. 

 21, pp. 1-70, 7 plates. 



Several pieces of investigation have been completed and the results are 

 ready for publication. Among these are the following: 



A revision of the genus Megastignius, being a continuation of the work 

 reported in Bulletin 265, " On Certain Seed-infesting Chalcis-flies," by 

 C. R. Crosby. 



A study of the apple maggot, by J, F. Illingworth. 



A study of a new pest of cherries, by J. F. Illingworth. 



The following are some of the subjects that are being investigated: 



Certain external parasites of domestic fowls, with methods of control, 

 by Glenn W. Herrick. 



The control of two elm-tree pests, by Glenn W. Herrick. 



The life history and control of certain clover pests, by Glenn W. 

 Herrick. 



The life history and control of the codling moth in western New York, 

 by R. W. Braucher. 



A study of the onion thrips, by J. C. Faure. 



Jointworms infesting grains and grasses, by C. R. Crosby. 



The tarnished plant-bug, by C. R. Crosby. 



EXTENSION 



The extension work of the Department has been largely in the field of 

 economic entomology. This has included attendance at fairs with ex- 

 hibits of insects of economic importance, lectures before agricultural 

 societies, visits to localities where outbreaks of insect pests have occurred, 

 an extensive correspondence with farmers and fruit-growers, and co- 

 operative experiments in the control of insect pests. 



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