32 MICHIGAN ACADEMY OF SCIENCE. 



THE LEPIDOPTERA OF MICHIGAN. 



R. H. WOIX'OTT, M. D., GRAND RAPIDS. 

 (Read before the Academy, Dec. 27, 1894.) 



[Abstract.] 



I. Introduction: 



1. Situation of state. 



2. Divisions of state. 



3. Configuration of surface— Lower Peninsula. 



4. Configuration of surface— Upper Peninsula. 



5. Geological strata. 



6. Climate. 



7. Flora. 



II. Distribution of animal life in state: 



1. Relation to great faunal provinces. 



2. Division of the state into faunal regions. 



3. Causes changing these divisions. 



III. The Insect Fauna with especial reference to Lepidoptera: 



1. General remarks on Insect Fauna. 



2. Classification of Insecta. 



3. Lepidoptera. 



4. Classification of Lepidoptera. 



5. List of families and superfamilies. 



IV. Review of Lepidoptera of state: 



1. Rhopalocera— 110 species. 



2. Sphinges — 47 species. 



3. Sesias — 12 known species, probably 50 altogether. 



4. Bombyces — 150 species. 



5. Noctuae— 550 species, estimated. 



6. Geometrae— 200 species. 



7. Microlepidoptera— Pyralites, 150 species, estimated. 

 S. Tortrices— 100 species, estimated. 



9. Tineina — 250 species, estimated. 

 10. General Survey— 1600 species total. 



V. Suggestions as to work: 



1. Gathering of facts— Methods of collecting. 



2. Collecting immature stages. 



3. Labeling. 



4. Identification. 



5. Works of reference. 



VI. Conclusion. 



TENDENCIES IN MICHIGAN HORTICULTURE. 



ARTHUR A. CROZIER. 



("Read before the Academy, December 27, 1894.) 



Recognition of the peculiar advantages of Michigan as a fruit growing 

 state may be said to date from the publication in 1866 by Alexander Win- 

 chell of his researches upon the climatology of the region of the Great 

 Lakes. He then demonstrated the previously unsuspected fact that 

 these inland bodies of water exert upon the climate of the surrounding 



