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New Records of Coccinellidae (Coleoptera) from Wyoming, USAAuthor(s): Louis S. Hesler, John E. Losey, Leslie L. Allee and Rebecca Rice SmythSource: The Coleopterists Bulletin, 68(1):128-130. 2014.Published By: The Coleopterists SocietyDOI: http://dx.doi.org/10.1649/0010-065X-68.1.128URL: http://www.bioone.org/doi/full/10.1649/0010-065X-68.1.128

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SCIENTIFIC NOTE

NEW RECORDS OF COCCINELLIDAE (COLEOPTERA)FROM WYOMING, USA

LOUIS S. HESLER

USDA-ARS, North Central Agricultural Research Laboratory, 2923 Medary Avenue, BrookingsSD 57006-9401, U.S.A.louis.hesler@ars.usda.gov

JOHN E. LOSEY, LESLIE L. ALLEE, AND REBECCA RICE SMYTH

The Lost Ladybug Project, Department of Entomology, Cornell UniversityIthaca, NY 14853, U.S.A.

Faunal distributions are dynamic, and the faunaassociated with a particular area may change dueto accidental or intentional introductions of newspecies, extinctions, and natural geographic rangeexpansions or contractions of species (Brodmanet al. 2002; McCorquodale and Bondrup-Nielsen 2004). Thus, periodic field surveys andcollections of fauna are necessary to maintain acurrent species inventory. Accordingly, ongoingcuration of new material deposited into the zoo-logical collections of museums and the peri-odic review of these collections is neededfor generating accurate, up-to-date faunal lists(McCorquodale and Bondrup-Nielsen 2004; Heslerand Kieckhefer 2008).A comprehensive overview of the lady beetle

(Coleoptera: Coccinellidae) fauna of North Americanorth of Mexico was provided by Gordon (1985).Several updates to the fauna have been published,including those for particular states within theUSA and provinces of Canada. For instance,Michels (1987) provided a checklist of coccinellidsand reported 16 new species records of coccinellidsfrom Wyoming, USA.Hesler and Kieckhefer (2008) suggested

that examination of undetermined material inbeetle collections may yield additional speciesrecords of coccinellids. Recently, undeterminedbeetles within the University of Wyoming InsectMuseum, Laramie, Wyoming were examined.Keys in Gordon (1985) and known geographicdistributions presented in Gordon (1985) andMichels (1987) were used to determine newrecords for four species of coccinellids fromWyoming among the undetermined material.This paper summarizes those new records. Arevised classification of the Coccinellidae (Seagoet al. 2011) is used.

Scymnus (Pullus) calaveras Casey, 1899(Coccinellinae: Coccidulini)

WYOMING: Fremont County, 5 July 1968,Fred A. Lawson. New state record. This malespecimen was collected in west-central Wyoming.Scymnus calaveras is distributed in the westernUnited States and Canada, with a generalized dis-tribution projected into extreme southwesternWyoming and a disjunct collection record fromnorthwestern Colorado (Gordon 1985).

Exochomus townsendi Casey, 1908(Coccinellinae: Chilocorini)

WYOMING: Albany County, Laramie, 5 mi. N,1984, Tim Christiansen. New state record.Exochomus townsendi is recorded from four localesin Colorado and from Chihuahua, Mexico (Gordon1974). Thus, this record represents the north-ernmost collection of E. townsendi. Records ofE. townsendi in Colorado and now southeasternWyoming are sympatric with the southeasterndistribution of Exochomus aethiops (Bland), amorphologically similar species (Gordon 1985).The specimen of E. townsendi from Wyomingdiffers morphologically from E. aethiops in havingthe epipleuron less strongly descending, lateralelytral margin less explanate, and lateral marginsof the pronotum and elytra appearing continuous(Gordon 1974).

Hippodamia moesta bowditchi Johnson, 1910(Coccinellinae: Coccinellini)

WYOMING: [Albany County] Centennial, 24 July1966, A. C. Scoggan; Crook County, 12 June 1985,T. Christiansen; Fremont County, Squaw Creekdrainage, 18 July 1984, R. Lavigne, collected on

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The Coleopterists Bulletin, 68(1): 128–130. 2014.

leafy spurge blossoms. New state records. Thissubspecies of Hippodamia moesta LeConte isrecorded from California, British Columbia, Idaho,Montana and Colorado (Gordon 1985). Thus, therecords from Wyoming are not surprising, andthey bridge a gap in the known geographic distri-bution of H. moesta bowditchi.

Coccinella septempunctata L., 1758(Coccinellinae: Coccinellini)

WYOMING: Albany County, Medicine BowNational Forest, 19 January 1991, M. Pomerinke;Albany County, Medicine Bow National Forest,19 March 1991, M. Pomerinke; Albany County:Medicine Bow National Forest, 3 miles up road707A, 11 September 2007, A. Townsend. New staterecords. In addition, several digital images ofC. septempunctata from Wyoming have beensubmitted to the Lost Ladybug Project (LLP,Losey et al. 2012), subsequently identified byexperts, and entered into a database. The follow-ing records of adult C. septempunctata fromWyoming were found in the LLP database as vir-tually vouchered specimens (LLP 2013): LaramieCounty, Cheyenne, Crystal Reservoir Road, CountyRd 210, 41.1525173°N, −105.18059°W, 16 June2010, Leslie Allee, 3 adults; Teton County, Alta,Grand Targhee, 43.787113°N, −110.95929°W,21 August 2010, James Kopco, 26 adults; Big HornCounty, Basin, city walking path, 44.3799574°N,−108.03898°W, 13 September 2010, Leanna Morton,3 adults; Laramie County, Cheyenne, back alley/fieldnear drainage ditch, 41.1399814°N, −104.82024°W,1 May 2012, Damon Baker, 6 adults; SweetwaterCounty, Rawlins, 41.7910697°N, –107.23866°W,18 May 2012, Kent Fothergill, 1 adult; LaramieCounty, Cheyenne, 41.1399814°N, –104.82024°W,17 June 2012, Harriet Moore, 2 adults; LaramieCounty, Cheyenne, 41.1399814°N, –104.82024°W,20 June 2012, Harriet Moore, 1 adult.Coccinella septempunctata is an invasive species

that is widely distributed throughout North America(Shaefer et al. 1987). This native European speciesis considered invasive as it has spread rapidly overthe continent (Snyder and Evans 2006), and becauseit consumes non-target non-pest prey, such as anative aphid, an endangered butterfly, and nativeaphidophagous lady beetles (Schellhorn et al.2005; Rand and Louda 2006; Evans et al. 2011).Coccinella septempunctata has been found in statesbordering Wyoming since the late 1980s and 1990(Rice 1992; Hesler and Kieckhefer 2008; Hesleret al. 2009). Thus, the first two collection recordsfrom 1991 were consistent with the advent ofC. septempunctata in the intermountain region ofwestern North America. Moreover, the first recordfrom January 1991 suggests collection of an over-

wintering adult, and thus C. septempunctata waslikely present in Wyoming as early as 1990. Sev-eral of the additional, more recent records fromthe LLP database indicate that this non-native spe-cies is now distributed throughout Wyoming.

The new records of coccinellids presented heresupport the contention that periodic examinationof undetermined material may yield new knowl-edge about the geographic distribution of beetlespecies (McCorquodale and Bondrup-Nielsen2004; Hesler and Kieckhefer 2008). The addi-tional records of C. septempunctata provided inthe LLP database demonstrated its utility as areference source for studying the geographic dis-tribution of coccinellids (Fothergill et al. 2010;Losey et al. 2012). The new records in this papermay also facilitate larger works on the regionalcoccinellid fauna and in tracking and understand-ing the geographic spread of invasive coccinellidssuch as C. septempunctata. Further study is neededto determine particular habitat and prey associa-tions of these four, newly recorded coccinellidspecies in Wyoming.

Pinned specimens of beetles that represent theprimary state records in this paper were depositedas voucher specimens in the University of WyomingInsect Museum, Laramie.

ACKNOWLEDGMENTS

Scott Shawgraciously provided access to coccinellidspecimens in the University of Wyoming InsectMuseum. Jedidiah Nixon assisted in sorting andidentifying specimens. Kent Fothergill and LaurenHesler graciously reviewed drafts of this paper.

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(Received 27 September 2013; accepted 10 December 2013.Publication date 20 March 2014.)

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