254 ENTOMOLOGICAL NEWS [xxxii, '21 



PI. DVI, ff. 4232, 4233. Psamatodcs nicctaria Gn., described from 

 Haiti, is likewise unknown to us. 



PI. DVII, ff. 4237, 4238. Ypsipctcs phiviata Gn. This species stands 

 in the "Check List" as a synonym of Hydriomcna coenilata Fab. Our 

 series compares very well with fig. 4238 but we are unable to find any 

 specimens in the collection which match fig. 4237 well. 



PI. DVII, fig. 4240. Corcima dcfcnsaria Gn. This figure does not 

 compare well with any specimens in our series of Xanthorhoc conval- 

 laria form defcnsaria, but since the species is extremely variable and the 

 figure is not conspicuously different, we prefer to retain the name for 

 the present as it has recently been used. 



In conclusion we wish to thank M. Oberthtir sincerely for his con- 

 tinued generosity to North American Lepidopterists in publishing fig- 

 ures useful to them chiefly, if not exclusively. In this we feel that we 

 do not speak for ourselves alone, but for all of our colleagues on this 

 side of the Atlantic. Nor do we feel that our duty and privilege is 

 satisfied merely by an appreciation of the scientific value of these works, 

 for their aesthetic qualities and the high standard which they must set 

 for future publications may not lightly be passed over WM. BARNES, 

 M.D., and A. W. LINDSEY. Ph.D., Decatur, Illinois. 



EIGHTEENTH REPORT, STATE ENTOMOLOGIST OF MINNESOTA to the 

 Governor. By A. G. RUGGLES. Agricultural Experiment Station, Uni- 

 versity Farm, St. Paul, Minnesota. December 1, 1920. Mailed June 18, 

 1921. 210 pp., 43 text figs., 10 pis. In his general report, entitled "Insect 

 Notes for 1920," Mr. Ruggles mentions that "Some new insects, as the 

 apple maggot, Rhagoletcs pmnonclla Walsh, and the asparagus beetle. 

 Crinccris aspamgi Linn., have made their appearance in the state. These 

 have already caused considerable damage." R. pomondla had, indeed, 

 been found on Crataegus in Minnesota in 1898, but the first reports of 

 its injuring cultivated fruit came in 1918. C. asparayi "was found for 

 the first time in Minnesota in 1919." A wet June in 1920 and the use of 

 much poison bait prevented much grasshopper damage; there was a 

 notable absence of the common varieties of cutworms which work in 

 fields and gardens in the spring ; the army worm failed to form true 

 marching armies, due apparenlly to the wetness of late June and early 

 July "and many favorable places for egg laying could be found in any 

 field. This accounted for the smallness of the armies and their quite 

 uniform distribution over the section." An interesting account of the 

 relation of squirrels and insects to defoliation is given. The red squirrel 

 (Scinnts Intdsonius Erx.), seeking the basal leaf galls of the cotton- 

 woods, caused by the plant louse, I'ciuphiints popub'caulis Fitch, and eat- 

 ing them as it would a nut, the "leaf portion became free and dropped. 

 From thirty to forty seconds would suffice for one gall. He went from 

 leaf to leaf with great rapidity. The feasting was kept up for an hour 



