238 JOURNAL OF ECONOMIC ENTOMOLOGY [Vol. & 



satisfactory results. It is largely a question of apportioning effort 

 and here local conditions have an important bearing. The answer 

 in no two cases will be exactly the same and the amount of time 

 given to each line of effort must vary with the season and change 

 more or less from year to year. 



The training of the economic entomologist has received considerable 

 attention at the hands of both teachers and workers. There is no 

 question but that a liberal training with all that it impUes is a most 

 excellent foundation for a professional career. There are a number 

 of related, special sciences of value to the entomologist and they 

 likewise I'equire close application for their mastery; not to mention 

 the exacting requirements of entomology itself — a science deaUng 

 with an immense number of insects presenting extraordinarily wide 

 variations in biology, ecology and adaptability. The well equipped 

 entomologist should have several years of practical experience in 

 both field and laboratory work, using the latter adjective in a some- 

 what general sense. This all takes time and it is doubtful if the best 

 university undergraduate and graduate courses combined can cover 

 all this ground in an entirely satisfactory manner. Furthermore, not 

 every man can afford to devote the necessary time to cover the ground 

 indicated above. In the ultimate analysis there must be more or 

 less compromising on both sides of the hnc and, generally speaking^ 

 we beheve that it is possible to cover only the broader, more fun- 

 damental phases in the university, leaving much of learning and most 

 of the so essential practical experience with both insects and men 

 (the latter by no means unimportant) to be gained by practise^ 

 preferably under the direction of one intimately acquainted with the 

 many duties and privileges of the economic entomologist. 



Tetranychus mytilaspidis Riley in New York: During the summer of 1915 a 

 species of red spider was very abundant on apples and pears, growing on the grounds 

 of the New York Experiment Station at Geneva. Specimens of the spiders were 

 sent by Dr. H. Glasgow of this Department to Prof. II. E. Ewing of the Iowa Agri- 

 cultural College for identification, who replied that the species was the Citrus Red 

 Spider {Tetranychus mytilaspidis). This spider, according to Quayle (Cal. Bui. 

 234:487), occurs in P'lorida and California as a pest of citrus fruits. In Oregon it 

 was observed by Ewing on plum, prune and other deciduous trees. As far as is 

 known this is the first record of the occurrence of the pest in the eastern United 

 States. 



P. J. Parrott, Department of Entomology, 

 New York Agricultural Experiment Station, Geneva, N. Y. 



