Ky-11 Fossil Insect Faunal List ----------------------------------------------------------------------- World Data Center for Paleoclimatology, Boulder and NOAA Paleoclimatology Program ----------------------------------------------------------------------- NOTE: PLEASE CITE CONTRIBUTORS WHEN USING THIS DATA!!!!! NAME OF DATA SET: Ky-11 Fossil Insect Faunal List LAST UPDATE: 7/2004 (Original receipt by WDC Paleo) CONTRIBUTOR: Scott Elias, University of London IGBP PAGES/WDCA CONTRIBUTION SERIES NUMBER: 2004-034 SUGGESTED DATA CITATION: Elias, S.A.. 2004. Alaska Fossil Insect Faunal Data. IGBP PAGES/World Data Center for Paleoclimatology Data Contribution Series # 2004-034. NOAA/NGDC Paleoclimatology Program, Boulder CO, USA. ORIGINAL REFERENCE: Elias, S. A., 1994. Quaternary Insects and Their Environments. Smithsonian Institution Press, Washington, D. C. FUNDING SOURCE: National Science Foundation grant OPP-0002362 (USA) GEOGRAPHIC REGION: Alaska, USA PERIOD OF RECORD: MIS 5e, ~140 KYrBP DESCRIPTION: Ky-11 Fossil Insect Faunal List Latitude: 66º32'N, Longitude: 152º 05'W, Bathymetry/elevation: 300 m asl Variable names: Insect taxon Variable unit: Minimum number of individuals (MNI) per assemblage Data precision: N/A Data format: Faunal list table, showing MNI per taxon per sample MNI was calculated on the basis of the maximum number of any single body part (e.g., head capsule, pronotum, left or right elytron) of a given taxon Methods including references: Seventeen samples were taken for insect fossil analysis. The samples came from two exposures at the Ky-11 bluff. Nine of the samples came from the upper bluff exposure, and eight samples came from Hamilton and Schweger’s 1991 sampling site. The samples were taken from 5 cm depth intervals, or less (in the case of thin organic stringers exposed in the deposits). The samples were wet-screened over a 300-µm sieve to isolate organic residues. Extraction of insect fossils from organic detritus followed standard kerosene flotation methods (Elias, 1994). Specimens were sorted in 95% ethanol under low-power stereobinocular microscope. Most insect fossil specimens were stored in vials of 95% ethanol. Some were mounted on micropaleontological cards with gum tragacanth, a water soluble glue. Identification of specimens was made by comparison with identified fossil and modern material in Elias’s Alaskan collection, and by comparison with modern specimens in the Canadian National Collection, Agriculture Canada, Ottawa. Chronostratigraphic information: The TL age estimate from silts mixed with the OCT at the Ky-11 site is 140,000 + 20,000 yr BP. DATA: TAXON Upper Peat Samples 1991 Section Samples 1 2 3 4 5 6 7 8 9 24 18 19 20 21 22a 13 14 15a 10 Coleoptera Carabidae Dyschirius nigricornis Mots. 2 Bembidion mckinleyi Fall 1 Bembidion scopulinum Kby. 1 Bembidion spp. 1 1 1 1 1 Pterostichus arcticola Chaud. 1 Pterostichus cf. gerstlensis Ball 1 Pterostichus empetricolla Dej. 1 1 1 Pterostichus caribou Ball 1 Pterostichus (Cryobius) sp. 2 2 1 1 2 Stereocerus haematopus (Dej.) 1 1 Agonum sp. 1 1 Amara bokori Csiki 1 Dytiscidae Hydroporus sp. 1 1 1 1 1 1 1 Agabus arcticus Payk. 1 2 Agabus sp. 1 1 1 Colymbetes dolobratus (Payk.) 1 1 Colymbetes sculptillis Harris 1 Colymbetes sp. 1 1 1 1 1 Gyrinidae Gyrinus sp. 1 2 2 3 2 Hydrophilidae Helophorus sempervarians Angus 1 Helophorus sp. 1 Hydrobius fuscipes L. 1 Cercyon marinus Thoms. 1 1 1 17 Cercyon sp. 1 1 1 Limnebiidae Hydraena angulicollis Notm. 1 1 1 Staphylinidae Olophrum consimile (Gyll.) 3 Olophrum latum Mäkl. Olophrum sp. 1 2 Geodromicus sp. 1 Arpedium brachypterum Grav. 1 1 1 Stenus sp. 3 1 1 1 1 1 Lathrobium sp. 7 1 Tachyporus rulomus 1 Aleocharinae genus & sp. indet. 1 1 Scarabaeidae Aegialia lacustris Lec. 1 Aphodius sp. 1 1 1 Serica sp. 1 Byrrhidae Morychus sp. 1 Simplocaria sp. 1 Elateridae Ctenicera sp. 1 1 1 Cucujidae Laemophloeus sp. 1 Curculionidae Apion sp. 1 1 1 1 Lepidophorus lineaticollis Kby. 4 7 Genus et spp. indet. 3 Scolytidae Orthotomicus caelatus (Eich.) 1 Pityophthorus sp. 2 1 Hymenoptera Formicidae Myrmica alaskensis Whlr. 9 24 7 Formica neorufibarbis Emery 1 1 Camponotus herculeanus L. 1 Trichoptera Limnephilidae Homophylax sp. 1 1 1 9 2 4 36 8 Homoptera Cicadellidae Cicadella sp. 2