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(Springtails) of Michigan Number 6 Article 1 -- an Annotated List of the Collembola (Springtails) of Michigan

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(Springtails) of Michigan Number 6 Article 1 -- an Annotated List of the Collembola (Springtails) of Michigan The Great Lakes Entomologist Volume 1 Number 6 -- An Annotated List of the Collembola (Springtails) of Michigan Number 6 Article 1 -- An Annotated List of the Collembola (Springtails) of Michigan November 1967 An Annotated List of the Collembola (Springtails) of Michigan Richard J. Snider Michigan State University Follow this and additional works at: https://scholar.valpo.edu/tgle Part of the Entomology Commons Recommended Citation Snider, Richard J. 1967. "An Annotated List of the Collembola (Springtails) of Michigan," The Great Lakes Entomologist, vol 1 (6) Available at: https://scholar.valpo.edu/tgle/vol1/iss6/1 This Peer-Review Article is brought to you for free and open access by the Department of Biology at ValpoScholar. It has been accepted for inclusion in The Great Lakes Entomologist by an authorized administrator of ValpoScholar. For more information, please contact a ValpoScholar staff member at [email protected]. Snider: An Annotated List of the Collembola (Springtails) of Michigan 1967 THE MICHIGAN ENTOMOLOGIST 179 AN ANNOTATED LIST OF THE COLLEMBOLA (SPRINGTAILS) OF MICHIGAN Richard J. Snider Department of Entomology, Michigan State University East Lansing. Michigan 48823 When work began on the Michigan Collembolain 1959, the Entomology Museum at Michigan State University included only one specimen of the order in its catalog of insects. The University of Michigan had a few vials of specimens determined by Harlow B. Mills, and a modest num- ber was in the Robert R. Dreisbach collection at Midland, Michigan. At the beginning of my investigation very little was known about the order in Michigan, although monographs had been written on the collembolan faunae of the nearby states of Minnesota (Guthrie, 1903), Iowa (Mills, 1934) and New York (Maynard, 1951). I expected to find species that had been recorded from surrounding areas, and hoped to find a few new to science. Both aims have been fulfilled. In addition, some European species are recorded from North America for the first time. These include Ovchesella ivvegulavilineata Stach, Tetva- canthella montann Stach, Odontella lamellifeva (Axelson), Sminthuvi- nus bimaculatus Axelson, and Sminthvinus igniceps (Reuter). A new subspecific name is proposed for Sminthuvinus quudvimaculatus bi- macu.?atu~Maynard. The present paper lists 132 species and subspecies of 46 genera that occur in Michigan. New species will be described in the future. The present work follows a style similar to that of Sherman Moore's A Revised Annotated List of the Butterflies of Michigan (1960), except that keys to the genera and species have been included. The taxonomy follows that of Salmon (1964); thus instead of the usual two suborders, four are recognized. To record distribution, Moore divided the state into three zones; the southern lower peninsula (SLP), the northern lower peninsula (NLP) and the upper peninsula (UP). The scheme has been followed here, and is illustrated in Figure 1, which may be used in conjunction with the text and maps for greater clarity. Maps are provided for only the more common species. Zones are given under the species headings with reference to the maps; or, if distribution is represented by less than six locations, county names are provided. The range of dates indicates the earliest and latest known occurrence of each species during the year. *This study, which is respectfully dedicated to the memory of the late Robert R. Dreisbach, was supported by U.S. Public Health Service re- search grant CC 00 246, from the National Communicable Disease Cen- ter, Atlanta, Georgia, and by the Michigan State University Agricultural Experiment Station, for which this is journal article 4198. Published by ValpoScholar, 1967 1 The Great Lakes Entomologist, Vol. 1, No. 6 [1967], Art. 1 180 THE MICHIGAN ENTOMOLOGIST Vol. 1, No. 6 Certain areas of the state have been subject to intensive collection, and are frequently mentioned in the list. Baker Woodlot, on the campus of Michigan State University in Ingham County, is among these. The Kel- logg Forest, part of the Kellogg Biological Station at Gull Lake, Kala- mazoo County, was the site of an arthropod study conducted by H. 0. Schooley in 1963: much of the material he collected is discussed here for the first time. In 1965 Dr. James W. Butcher initiated a soil biology project in Monroe County that resulted in many records which are discussed below. James J. Shaddy's 1956 faunistic study of Wexford and Grand Traverse Counties contributed numerous new data. Figure 1. Map of Michigan, showing counties and zones. (After Moore, 1960.) https://scholar.valpo.edu/tgle/vol1/iss6/1 2 Snider: An Annotated List of the Collembola (Springtails) of Michigan 1967 THE MICHIGAN ENTOMOLOGIST 181 The collections discussed are housed at two institutions. The bulk of the material, including the Dreisbach collection, is at the Entomology Museum, Michigan State University, East Lansing. The remainder is in the Museum of Zoology, University of Michigan, Ann Arbor. Most of the specimens are preserved in alcohol, although almost one thousand slides have been examined. In studying collembolan taxonomy I have had constant access to three works which form the core of our American literature, the cited mono- graphs by Guthrie, Mills and Maynard. Useful in clarifying determina- tions were Folsom's study of the Isotomidae (1937), Folsom and Mills' revision of Sminthuvides (1938), and Christiansen's revisions of Tomo- cems (1964), Entomobvya (1958) and Avvhopalites (1966). Other help- ful studies are included in the Selected Bibliography below. It is hoped that the present paper will serve as a guide to investigators in the Great Lakes area, and form the foundation of a future monograph- ic study. ACKNOWLEDGMENTS I wish to thank Dr. Gordon Guyer, Chairman, and Dr. James W. Butcher, Professor, Department of Entomology, Michigan State Univer- sity, who gave continued support to this work and made facilities for study available. Research was performed under the Department of Entomology Soil Zoology Project. Thanks are also due to Dr. Roland L. Fischer, Curator of Insects, who encouraged and helped me to get started in Collembola taxonomy. Specialists in the study of Collembola who have been of immense aidinclude: Dr. Harlow B. Mills, Dr. Kenneth Christiansen, the late Dr. Hermann Gisin, Dr. David L. Wray, Dr. Peter Bellinger, Dr. John T. Salmon, and Mrs. Mary Quigley. Those who have contributed specimens to the collection and spent many hours in this specific endeavor deserve sincere thanks. The list of col- lectors includes: J. Aitkens, N.T. Baker, D.E. Bixler,R.C. Brock, D.B. Crockett, J.F. Donahue, L.C. Drew, R. R. Dreisbach, G.C. Eickwort, J.D. Fenstermacher, R.L. Fischer, F.E. Giles, J.H. Graffius, F.W. Grimm, K.L. Hays, T. Hlavac, R.W. Hodges, J.J. Jackson, G. Klee, R. W. Koss, R. Lazer, G.V. Manley, R.W. Matthews, M.C. Nielsen, H.D. Niemczyk, T.W. Porter, R. A. Scheibner, H.O. Schooley, R.T. Schuh, J. H. Shaddy, J. G. Truchan, W. T. VanVelzen, A. L. Wells, R. B. Willson, and B.A. Wilson. Similar thanks go to Kathy Toland, Carol Heney, Kathy Myers, Nancy Bishop Nilson, Donna Miller, Stephen Vore, Richard Hatch, and Mauricio Alegria. Without their many hours of sorting through samples, this work would never have reached its present proportions. MORPHOLOGY The members of the order Collembola are usually characterized by two basic body forms; the elongate (Figs. 2, 3) which includes the sub- orders Arthropleona, Metaxypleona, and Neoarthropleona, and the globular-shaped Symphypleona. (Figs. 4,5). Published by ValpoScholar, 1967 3 The Great Lakes Entomologist, Vol. 1, No. 6 [1967], Art. 1 182 THE MICHIGAN ENTOMOLOGIST Vol. 1, No. 6 anus 2 I manubriurn' anal papilla (anogenital segments) ' 'unguis rnuLro , I un9\uicu1us tenent hair Figures 2 and 3. Lateral and dorsal views of the elongate body form, indicating general morphology. Figures 4 and 5. Lateral and dorsal views of the globular body form, indicating general morphology. https://scholar.valpo.edu/tgle/vol1/iss6/1 4 Snider: An Annotated List of the Collembola (Springtails) of Michigan 1967 THE MICHIGAN ENTOMOLOGIST 183 The collembolan head is a most interesting structure (Fig. 6). One pair of four-segmented antennae, whose segments vary in length, can be easily seen. Occasionally subsegmentation takes place. In the case of the Orchesellini the antennae appear to be five- or six-segmented due to the subdivision of the first and second segments. Figures 7 to 11 illustrate various modifications of segmentation. At the tip of the fourth antenna1 segment there is sometimes a retractile knob (Fig. 14). In the genus Sminthuvinus, segment three may have a simple (Fig. 13) or divided (Fig. 12) sensory papilla. Other papillae, pegs, and organs can occur on the antennae. All of these structures are of significant taxonomic value; and the reader is referred to Mills (1934) and Maynard (1951) for further information. Relative lengths of the segments can also be important. A simple method of expressing this is in the form of a ratio from segment one to four, e.g., 2:3:4:6. Located posterior to the antennae are the ocellar patches (Fig. 6). The Collembola may have as many as eight ocelli on either side (Fig. 17), located on these pigmented areas. Reduction in number is common within families, and it is not surprising to find the number of ocelli per patch varying from eight to four or five within a genus (Figs. 15, 16). Some individuals are blind and lack ocellar patches altogether. Between the ocelli and bases of the antennae are located structures known as the post-antenna1 organs (PAO). They are depressions in the in t e g u m ent wh i c h may contain tubercles sensitive to heat, light and barometric pressure (Chang, 1966).
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