72 



(A. J. Cook, 2d Ann. Rept. Mich. Expt. Sta., p. 153), while other 

 report.s have been made of destructive occurrences from three to live 

 years earlier at Bonaparte, Iowa; Westboro, Mass.; Batavia, Portland, 

 Cattaraugus, Clifton Springs, Syracuse, and Cayuga, N. Y., and State 

 College, Pa. In two of these localities injur}' of a similar nature had 

 been noticed as early as about 1865. 



It is highly prohal)le that the same species has been destructive for 

 generations in many other localities than those mentioned, but the 

 cause of the troul>le has without doubt Ijeen undetected, because 

 attributed to that more common and nearly universal cherry pest, the 

 plmii curculio. 



As this cherr}' fruit fly has not received notice in an}^ puljlication of 

 this office, an illustration of the different stages is presented, as also 

 one of the plum curculio [Conotracheliis nenuphm' — fig. 18) that the 



two species ma}^ not be 

 confused. 



DESCRIPTIVE. 



The adult. — The cherry 

 fruit liy is closely related 

 to the apple maggot {Rha- 

 (joletis jwrnonella)^ and 

 might readily be mistaken 

 for that species in all of its 

 known stages. It is, how- 



FiG. 18. — Conotrachelwivrnupliai-: n,\i\v\iv, h,\tQ{}X\e\ (\\m\>!\ — evCl' a little Smaller and 



all much enlargfil (original). . ' ' 



in the adult or ny stage 

 much paler in color, but the ^vings are similarly banded. The body is 

 piceous, the head and legs pale yellowish brown, the eyes dark greenish, 

 the thorax striped, with the sides marked with a liroad longitudinal 

 yellow band, and the a])domen is strongly segmented, due to transverse 

 pale brownish stripes. The wings are somewhat faintl}- banded with 

 dusky color arranged about as shown in fig. 17, <i. The body, includ- 

 ing the head, is about one-sixth inch in length, and the wing expanse 

 is three-eighths inch. 



The egg, as described by Lowe, measures 0.02 inch, is somewhat 

 broader toward one end, and about one-fourth as wide as long at the 

 widest point. "Beginning at the broad end and extending about one- 

 fourth the length of the Qgg the shell is roughened and somewhat 

 darker; color a dirty yellow." 



TJte maggot or "worm" is so nearl}^ an exact counterpart of the 

 apple maggot that a technical description is omitted. The color is 

 yellowish white, and the form is shown, lateral view at fig. 17, h. 

 Near the head there projects on each side a small pale brown some- 

 what fan-shaped organ, the anterior spiracles (fig. 17, (i) of which have 



