Banisteria, Number 41, pages 71-79 © 2013 Virginia Natural History Society Leaf Beetles (Coleoptera: Bruchidae, Chrysomelidae, Orsodacnidae) from the George Washington Memorial Parkway, Fairfax County, Virginia Joseph F. Cavey U.S. Department of Agriculture, APHIS, PPQ 4700 River Road, Unit 52 Riverdale, Maryland 20737 Brent W. Steury and Erik T. Oberg U.S. National Park Service 700 George Washington Memorial Parkway Turkey Run Park Headquarters McLean, Virginia 22101 ABSTRACT One-hundred and seven species in 60 genera of bruchid, chrysomelid, and orsodacnid leaf beetles were documented from the George Washington Memorial Parkway in Fairfax County, Virginia. Three species (Chaetocnema irregularis, Crepidodera bella, and Longitarsus altematus) are documented for the first time from the Commonwealth. The study increases the number of chrysomelid leaf beetles known from the Potomac River Gorge to 187 species. New host plant associations are noted for some species. Malaise traps and sweeping or beating vegetation with a hand net proved to be the most successful capture methods. Periods of adult activity based on dates of capture are given for each species. Key words'. Bruchidae, Chrysomelidae, Coleoptera, Fairfax County, leaf beetles, national park, new state records, Orsodacnidae, Virginia. INTRODUCTION highest species richness and abundance in open areas having a diverse flora (Greatorex-Davies et al., 1994; The Chrysomelidae, or leaf beetles, are the second Masashi & Nagaike, 2006). largest family of phytophagous beetles, with estimates The Bruchidae, considered by some a subfamily of ranging from 37,000 to 50,000 species worldwide, the Chrysomelidae, were given familial status by including approximately 1,700 species represented in Kingsolver (1995) based on a number of morphological North America (Lopatin, 1977; Jolivet, 1988; Riley et characters and their unique adaptations for ovipositing al., 2002). Larvae and adults feed primarily on leaves of on seeds or fruits and pods containing seeds. They are aquatic and terresfrial host plants, but some species also known for feigning death by falling from their specialize on roots, stems, seeds, flowers, pollen, or perch with legs and antennae appressed to the body and detritus. Largely because of their feeding habits, but head lowered. Approximately 1350 species are known also through the transmission of plant viruses, members worldwide, with 149 species documented from the of this group include a number of agricultural and United States (Kingsolver, 2002). horticultural pests. Some intentionally introduced The Orsodacnidae consists of 30 species that were species have become effective biological control agents formerly placed in two subfamilies of the on invasive non-native plants. While most adults are Chrysomelidae (Clark & Riley, 2002). Four species of small (1-10 mm) but boldly patterned and colored, the orsodacnids are recorded from the United States (Riley family also contains hundreds of cryptic species with et al., 2003). unknown biological habits. Leaf beetles reach their Although the leaf beetles are one of the most 72 BANISTERIA NO. 41, 2013 studied families of Coleoptera, and state level lists have been compiled by many authors (Balsbaugh & Hays, 1972; Downie & Arnett, 1996; Clark, 2000; Riley et al., 2003; Ciegler, 2007; Staines & Staines, 2009), no published systematic studies have been conducted in northern Virginia. This study sought to add to the knowledge of the leaf beetle fauna by compiling records, documented with a voucher specimen, from various studies conducted in the George Washington Memorial Parkway (GWMP), a national park in northern Virginia, and to determine whether any federally or state-listed rare, threatened or endangered leaf beetles occur within the study site. Currently, only one chrysomelid species (Calligrapha pnirsa Stal) is listed as rare in Virginia (Roble, 2013). This park includes areas along the Potomac River Gorge, an area noted for its biodiversity and regionally rare species (Evans, 2008). STUDY SITE The study site includes approximately 850 ha of lands managed by the National Park Service as units of the George Washington Memorial Parkway at Great Falls Park, Turkey Run Park, Dyke Marsh Wildlife Refuge, and Little Hunting Creek, Fairfax County, Virginia (Fig 1). Great Falls and Turkey Run parks fall within the Piedmont physiographic province while Dyke Marsh and Little Hunting Creek are on the Fig. 1. Location of study sites within the George Washington Coastal Plain. All sites are situated along the shore of Memorial Parkway, a unit of the National Park Service, in the Potomac River, and Great Falls and Turkey Run Fairfax County, Virginia. parks border the Potomac River Gorge. Most of the study sites are dominated by maturing, second growth, deciduous woodlands, but more open, herbaceous- the collections from GWMP, primarily as by-catch dominated habitats can be found in narrow bands along from studies targeting other arthropods. These include a the Potomac River and at Dyke Marsh. The vascular Bioblitz held on 23-25 June 2006 which documented 19 flora of the GWMP is diverse, with 1,313 taxa species (Evans, 2008); a bee inventory at Great Falls recorded, 1,020 from Great Falls Park alone (Steury et Park in 2007 and 2008 utilizing yellow, blue, and white al., 2008; Steury, 2011). pan traps (Steury et al., 2009); surveys of sawflies, caddisflies, shoreflies, and beetles utilizing six Malaise MATERIALS AND METHODS traps set in Great Falls and Turkey Run parks from 2006 through 2008 (Steiner & Erwin, 2007; Smith, The number of chrysomelid species documented 2009; Flint, 2011; Flint & Kjer, 2011; Mathis & from GWMP has grown since the first inventories Zatwarnicki, 2012); studies of alderflies, ants, fireflies, targeting this family occurred in Turkey Run Park on and scorpionflies collected at pitfall or Malaise traps two days in 1985 and 1986, when 14 species were run at Dyke Marsh from 1998 through 2003 (Kjar & recorded. This was followed by 14 days of chrysomelid Barrows, 2004; Barrows et al., 2005, 2008; Barrows & survey effort conducted in 2005 and 2006 in Great Falls Flint, 2009; Kjar, 2009) and studies targeting beetles and Turkey Run parks, which documented 70 species. captured by hand picking and in pitfall, Lindgren Survey methods for the 2005-2006 study consisted funnel, and blacklight traps set at Great Falls Park, entirely of sweeping beetles from foliage with a net and Turkey Run Park, Dyke Marsh Wildlife Refuge, and hand picking specimens from plants. Both subsequent along Little Hunting Creek in 2010 and 2011. and prior to the 2005-2006 inventory, a number of Occasional collections by hand picking were made at additional studies have added leaf beetle specimens to other locations within GWMP in Arlington or Fairfax CAVEY ET AL.: LEAF BEETLES 73 counties. Specimens were pinned and deposited in the Island were found in Great Falls or Turkey Run parks collections maintained at the George Washington located along the Potomac River Gorge within 6 km Memorial Parkway, Turkey Run Park Headquarters in north and south of Plummers Island, respectively. McLean, Virginia. Nomenclature follows Riley et al. These species bring the total number of chrysomelids (2003) and Kingsolver (2004). To determine new documented from the Potomac River Gorge to 187 Virginia records, we reviewed Riley et al. (2003) and species. A total of 36 species was found at Dyke Marsh Staines & Staines (2009) and conducted searches in (16 unique to this site), 82 at Great Falls Park (36 collections at the Virginia Museum of Natural History, unique), and 41 at Turkey Run Park (7 unique). No leaf Martinsville, Virginia (VMNH); National Museum of beetles were captured at Little Hunting Creek where Natural History, Smithsonian Institution, Washington, only Lindgren funnel and pitfall traps were used. One DC (NMNH); and collections at Shenandoah National species from GWMP was added from Arlington County Park, Luray, Virginia and Bull Run Mountains at Memorial Bridge. Sweeping or beating vegetation Conservancy, The Plains, Virginia, and the private with a hand net proved to be the most successful collection of Arthur V. Evans, Richmond, Virginia. method of capturing leaf beetles during this study, New host plant associations were determined through a yielding 77 species. Malaise traps captured 63 species, comparison of our records with those documented by pan traps and blacklight traps caught six species each, Clark et al. (2004). and pitfall traps collected three species, while Lindgren funnel traps failed to add any leaf beetles to the study. RESULTS Some of the most suitable leaf beetle habitat available at the study sites included two locations at A total of 107 species in 60 genera and three Great Falls Park that were especially productive. Near families was documented from GWMP. No species in coordinates N38° 59.680' W77° 15.060', the Central the family Megalopodidae (sometimes considered a Appalachian Riverside Outcrop Prairie (sensu Steury subfamily of the Chrysomelidae) were documented et al., 2008) adjacent to the Potomac River harbors from the study area. This represents 27.7% of the 386 a diverse flora from which 15 leaf beetle species chrysomelid taxa documented from Virginia (Staines & were taken. At the northern end of Great Falls Park Staines, 2009). At least eight species reported from (N39° 00.325' W77° 15.336'), a hillside seep creates a GWMP are not native to North America. Three native small open wet meadow just west of an adjacent trail species (Chaetocnema irregularis, Crepidodera bella, where 13 leaf beetle species were collected. and Longitarsus alternatus) were previously Most of the leaf beetle species known from GWMP undocumented from the Commonwealth. have wide north-south ranges within their eastern The 107 leaf beetle species collected from GWMP United States distributions. However, two species compares well with numbers listed for some of the most collected in Great Falls Park are uncommon in the Mid- productive sites in adjacent Maryland. These sites Atlantic area. Although recorded from a number of include Soldier’s Delight Natural Environment Area in West Virginia counties by Clark (2000), Capraita Baltimore County (115 species), Green Ridge State thyamoides was known from only a few specimens at Forest in Allegany County (82 species), Patuxent two locations in Maryland (Cavey & Staines, unpub. Research Refuge in Howard and Anne Arundel data) and was not listed for Virginia by Riley et al. counties (57 species), and Sideling Hill Wildlife (2003) or Staines & Staines (2009). Crepidodera bella Management Area in Washington County (54 species) was formerly known from coastal states between Texas (Cavey & Staines, unpub. data). Staines (2004, 2008) and South Carolina until it was recently recorded from reported 161 leaf beetle species from Plummers Island Maryland (Parry, 1986; Seago & Lingafelter, 2003) and in the Potomac River Gorge of Montgomery County, North Carolina (Staines & Staines, 2009). Taken on its Maryland, based on literature reviews, historical known Salix (willow) host during the survey, this collections, and an inventory in 1997 and 1998, which collection of C. bella represents the first record from added 15 species to the known fauna of the island. Virginia. Collection effort at these five Maryland sites is at least A species of Calligrapha, collected at Turkey Run equal to that at GWMP because all locations have been Park by shaking branches of Tilia americana L. surveyed repeatedly for one or more decades. Thirty- (basswood) in August 1985 and May 1986, is the most five species documented from GWMP are not known to interesting leaf beetle taken from the park to date. occur on Plummers Island, nine of which were found These specimens closely resemble Calligrapha scalaris only at Dyke Marsh, 33.5 km southeast of Plummers (LeConte), a species restricted to elm. Brown (1945) Island and in a different physiographic province. described several species similar to C. scalaris that However, 26 species not recorded from Plummers have basswood as host, including C. tiliae Brown, C. 74 BANISTERIA NO. 41, 2013 virginea Brown, and C. amator Brown, all recorded BRUCHIDAE (Bean Weevils) only from eastern Canada (Riley et al., 2003). The four biological species are quite difficult to separate, except Acanthoscelides alboscutellatus (Horn) - U; DM; 19 perhaps in series and with a known host (Brown, 1945). Apr-28 Aug; MT Given this difficulty, this record from Virginia and similar observations recorded from West Virginia and Althaeus hibisci (Olivier) - R; DM; 23 Jul-8 Aug; MT Ohio (Clark, 2000), it is likely that members of this species complex (other than C. sccilaris) occur in much Gibbobruchus mimus (Say) - R; GF; 16 Jul-3 Oct; BL, of the United States but were either not reported or HN, MT. Collected on Solidago bicolor L. confused with C. sccilaris. Repeated efforts to locate a population of this species during subsequent surveys at Megacerus discoideus (Say) - R; DM; 14 Jun-9 Aug; Turkey Run Park proved unsuccessful. MT The genus Longitarsus has been in dire need of revision for at least 40 years. We used Horn (1889), CHRYSOMELIDAE (Leaf Beetles) Duckett (1920), and comparisons with identified specimens to identify the species reported here. The Acallepitrix nitens (Horn) - R; GF, TR; 29 May-29 biology of the specimen reported as Faria n. sp. is Jul.; HN important to its yet unpublished description. Sumitrosis sp. near rosea differs from S. rosea by its variable Acalymma vittatum (F.) - R; GF, TR; 5 Sep-21 Oct; morphological characters and host plant preference. HN, MT The Psylliodes sp. $ (convexior LeConte or punctulatus Melsheimer) and ^ Donacia subtilis Altica chalybea Illiger - C; DM, GF, TR; 10 Apr-21 Kunze/D. fulgens LeConte complex can only be Oct; HN, MT. Collected on Vitis sp., a known host. definitively distinguished based on male characters. All specimens collected of the latter two taxa were Altica kalmiae Melsheimer - U; GF, TR; 14 Apr-20 females. Jul; HN, MT. Collected on Kalmia latifolia L. LIST OF SPECIES * Altica litigata Fall - R; GF, TR; 27 Apr-23 Aug; HN Nomenclature follows Riley et al. (2003) and Altica sp. ignita group - R; GF; 23 Jun; BL families and species are listed alphabetically. Twenty- six species previously unrecorded from the Potomac *Anisostena nigrita (Olivier) - R; GF; 6 Jun-16 Aug; River Gorge are marked with an asterisk (*). Eight HN. Collected on flowers of Pycnanthemum species non-native to North America are signified with tenuifolium Schrad., an association not noted by Clark an exclamation point (!). Species are designated as rare et al. (2004). Also swept from Andropogon sp., a (R) if 1-5 specimens were collected or observed, reported adult association (Clark et al., 2004). uncommon (U) for 6-12 specimens, and common (C) if more than 12 specimens were found. Sites where Baliosus nervosus (Panzer) - C; GF, TR; 10 May-16 specimens were collected are given as Dyke Marsh Aug; HN, MT. Locally numerous, feeding on and Wildlife Preserve (DM), Great Falls Park (GF), or mining (larvae) the leaves of Tilia americana L. Turkey Run Park (TR). Others sites are spelled out as needed. The earliest and latest dates of collection are Bassareus mammifer (Newman) - R; TR; 24 June; HN given for each species using three letter acronyms for the month. For trap sets over multiple weeks (rarely Brachypnoea clypealis (Horn) - C; GF, TR; 24 Jun-17 more than 14 days) the first day of the set is used as the Aug; HN, MT earliest date and the last day of the set for the latest date. Collection methods are listed using the following Brachypnoea tristis (Olivier) - R; GF; 15 Jul-29 Jul; abbreviations: black UV light (BL), sweep netting, HN beating sheets, and hand captures (HN), Malaise trap (MT), pan trap (PT), or pitfall trap (PF). Host plant Calligrapha sp. near scalaris (LeConte) - R; TR; 28 associations are given when known. Apr-12 May; HN, PF CAVEY ET AL.: LEAF BEETLES 75 Capraita obsidiana (F.) - R; DM, GF; 10 May-21 Oct; Colaspis brunnea (F.) - R; GF, TR; 12 Apr-20 Jul; HN, MT HN, MT Capraita sexmaculata (Illiger) - R; DM, GF, TR; 10 *Crepidodera bella Parry - R; GF; 16 Aug; HN. This May-29 Jul; HN, MT species has only been confirmed on Salix nigra Marshall (Clark et ah, 2004), but the common willow at * Capraita thyamoides Crotch - U; GF; 9 Apr-23 Jul; the site of this collection is S. caroliniana Michx., HN, MT, PT although S. humilus Marshall is also present. NEW STATE RECORD *\Cassida rubiginosa Muller - R; GF; 6 Jun; HN. Collected on Carduus sp., a known host. Crepidodera browni Parry — R; GF; 7 Jun-16 Aug; HN. Reported only on S. nigra and S. fragilis L. (Clark et Ceratoma trifurcata (Forster) - R; GF; 10-18 May; ah, 2004), but collected in an area where only S. HN. Swept from an unidentified wild bean vine caroliniana and S. humilus are present. displaying typical adult feeding damage; this species feeds on numerous members of the Fabaceae (Clark et Crepidodera nana (Say) - R; DM; 11-25 Apr; MT al., 2004). * Crepidodera violacea Melsheimer - R; DM, GF; 19 Chaetocnema confinis Crotch - R; GF; 12-27 Apr; HN Apr-21 Oct; MT Chaetocnema denticulata (Illiger) - R; GF, TR; 10 Cryptocephalus mutabilis Melsheimer - R; GF; 23 Jul; May-21 Oct; HN, MT. Handpicked from turf grass duff HN on 30 August. * Cryptocephalus quadruplex Newman - R; GF, TR; 18 * Chaetocnema irregularis LeConte - C; GF; 12 Apr- May-7 Jun; HN 15 Jul; HN. Clark et al. (2004) associated this species with Carex and, to a lesser extent, Scirpus and Juncus. Deloyala guttata (Olivier) - C; DM, GF; 23 May-8 One or more of these plant genera occur at the northern Aug; HN, MT portion of GF where this species was collected in numbers by sweeping. NEW STATE RECORD *\Demotina modesta Baly - U; GF; 16 Jun-21 Oct; HN, MT. In North America, this beetle has only been * Chaetocnema minuta Melsheimer - R; GF; 9 Apr-12 associated with Quercus nigra L. (Clark et ah, 2004), Jul; PT an oak not among the 13 Quercus species found in Great Falls Park (Steury et ah, 2008). Chaetocnema pulicaria Melsheimer - U; DM; 12 Apr- 5 Dec; MT Diabrotica undecimpunctata howardi Barber - U; DM, GF; 14 Jun-11 Oct; BL, MT Chaetocnema quadricollis Schwarz - R; DM; 11 Apr; MT Diabrotica virgifera Horn - R; DM; 23 Jul-4 Aug; MT *Chaetocnema truncata White - R; GF; 23 Jun; BL Dibolia borealis Chevrolat - R; GF, TR; 12 Apr-4 Aug; HN, MT Chalepus bicolor (Olivier) - U; GF; 1 May-16 Aug; HN, MT Disonycha admirabila Blatchley - R; Fairfax County, Collingwood Picnic Area; 16 Sep; HN. Collected in *Charidotella purpurata (Boheman) - C; DM, GF; 19 duff of turf grass. Apr-18 July; HN, MT Disonycha glabrata (F.) - R; GF, TR; 7 Jun-17 Aug; Charidotella sexpunctata bicolor (F.) - C; DM, GF, HN, MT. This species was collected in Turkey Run TR; 28 May-8 Aug; HN, MT Park on Amaranthus blitum L., which can be added to the long list of other Amaranthus species listed by Chiysochus auratus (F.) - R; GF; 8-9 Aug; HN. Netted Clark et ah (2004) as hosts for this beetle. on Apocynum sibiricum Jacq. 76 BANISTERIA NO. 41, 2013 Disonycha uniguttata (Say) - R; DM; 18 Jul-15 Aug; Pennellis is common at the site where this beetle was MT collected and is likely serving as its host plant. Disonycha xanthomelas (Dalman) - R; TR; 7-21 Jul; Kuschelina gibbitarsa (Say) - U; GF, TR; 10 Apr-21 MT Jul; HN, MT *Donacia biimpressa Melsheimer - R; GF; 27 Apr-10 Kuschelina vians (Illiger) - R; GF; 27 Apr; HN May; HN Labidomera clivicollis Kirby - R; Arlington County, *Donacia caerulea Olivier — C; DM, GF; 11 Apr-21 Memorial Bridge; 8 Jun; HN. Collected on Ilex opaca Nov; HN, MT Aiton (not feeding). Known hosts are in the Asclepiadaceae. Donacia fulgens LeConte - R; DM; 17-28 May; MT Lema trivittata Say - C; GF; 15 Jul-16 Aug; HN. Donacia piscatrix Lacordaire - U; DM; 10 May-12 Collected in numbers on Datura stramonium (L.), a Sep; HN, MT. Collected on Nuphar lutea (L.) Sm. ssp. known host. advena (Ait.) Kartesz & Gandhi. *Longitarsus alternatus Ziegler - C; GF, TR; 10 Apr- Donacia sp. subtilis Kunze / fulgens LeConte 17 Jul; HN, MT, PT. NEW STATE RECORD complex - R; DM; 12 Apr-18 July; MT *Longitarsus sp. near arenaceus Blatchley - R; GF; 12 Epitrix brevis Schwarz - C; GF, TR; 10 May-7 Jun; Apr; HN HN. Collected in numbers on Datura stramonium (L.), a known host. *Longitarsus testaceus Melsheimer - R; GF; 10 May; HN Epitrix juscula Crotch - R; GF; 10 May-7 Jun; HN *Longitarsus turbatus Horn - R; GF; 10 May; HN *Exema canadensis Pierce - R; GF; 9 Apr-16 Aug; HN, PT *Microrhopala vittata (F.) - R; GF, TR; 14-26 Jul; HN, MT Exema dispar (Lacordaire) - R; GF; 6 Jun; HN Neochlamisus bebbianae (Brown) - R; GF, TR; 14 Fidia longipes (Melsheimer) - C; DM, GF, TR; 19 Apr-6 Jun; HN Jun-1 Aug; HN, MT Neolema sexpunctata (Olivier) - R; GF; 31 Jun-17 Fidia viticida Walsh - C; DM, GF, TR; 24 Jun-8 Aug; Jul; MT. Collected sweeping Commelina, a known MT host. \Galerucella nymphaeae (L.) - C; DM; 7 July-15 Aug; Octotoma plicatula (F.) - R; GF; 7 Jun—15 Jul; HN. MT. This species entirely skeletonized patches of Adult collected on Campsis radicans (L.) Seem ex Nuphar lutea (L.) Sm. ssp. advena (Ait.) Kartesz & Bureau, the known larval host. Gandhi as large as 25 m x 25 m in Dyke Marsh in 2010. Odontota dorsalis (Thunberg) - U; GF, TR; 1 May-21 *\Graphops curtipennis (Melsheimer) - R; GF, TR; Jul; HN, MT 10-29 May; HN. Swept from Hypericum sp. Odontota mundula (Sanderson) - C; GF, TR; 10 May- fHornaltica atriventris (Melsheimer) - R; DM, GF; 12 21 Jul; HN, MT. Collected sweeping Amphicarpaea Apr-21 Oct; MT bracteata (L.) Femald, a known host. *Kuschelina fallax (Melsheimer) - R; GF; 6 Jun-23 Odontota scapularis (Olivier) - R; GF, TR; 10 May-24 Jul; HN. Clark et al. (2004) listed Agalinis fasciculata Jun; HN (S. Ell.) Raf. and A. strictifolia (Benth.) Penn as known hosts for this species. Neither of these species are \Oulema melanopus (Linnaeus) - U; DM, GF; 19 Apr- known from GWMP, however A. purpurea (L.) 7 Jul; HN, MT CAVEY ET AL.: LEAF BEETLES 77 *Oulema palustris (Blatchley) - R; GF; 10 May-6 Jun; Rhabdopterus picipes (Olivier) - U; DM, GF, TR; 19 HN Jun-23 July; HN, MT Oulema sayi (Crotch) - R; TR; 23 Jul; HN Rhabdopterus praetextus (Say) - C; DM, GF, TR, 28 May-9 Aug; HN, MT Pachybrachis femoratus (Olivier) - R; GF; 16 Aug; HN Saxinis omogera (Lacordaire) - R; GF; 22 May-7 Jun; Paria fragariae Wilcox - C; DM, GF, TR; 12 Apr-16 HN, PT Aug; BL, HN, MT Stenispa metallica (F.) - R; GF; 27 Apr-23 Sep; HN. Paria n. sp. - R; GF; 7 Jun; HN Swept from Scirpus and Carex sedges in wet areas. *Paria quadriguttata LeConte - R; TR; 1-20 May; MT Sumitrosis inaequalis (Weber) — C; GF, TR; 9 Apr-4 Aug; HN, MT, PT. Collected mating on Solidago sp., a Paria quadrinotata (Say) - U; DM, GF, TR; 10 Apr-9 known host. Aug; HN, PF, MT Sumitrosis rosea (Weber) - U; GF, TR; 10 May-21 Phyllobrotica limbata (F.) - R; GF; 3-17 Jun; HN, MT Oct; HN, MT Phyllotreta bipustulata (F.) - R; GF; 27 Apr-18 May; Sumitrosis sp. near rosea - R; TR; 18 May-4 Aug; HN, HN MT. A species similar to S. rosea (Weber), collected on Laportea sp. Phyllotreta liebecki Schaeffer - R; DM, GF; 27 Apr-2 Jul; HN, MT Systena elongata (F.) - R; DM, TR; 25 Apr-19 Aug; PT, MT \Phyllotreta striolata (F.) - R; DM, TR; 18 Mar-10 May; MT Tymnes tricolor (F.) - U; GF, TR; 15 May-21 Jul; BL, HN, MT \Phyllotreta zimmermani (Crotch) - R; DM; 19-28 Apr; MT ORSODACNIDAE (Ravenous Leaf Beetles) *\Plagiodera versicolor (Laicharting) - R; DM, GF; 8 Orsodacne atra (Ahrens) - R; GF; 18 Mar-9 Apr; MT May-7 Jun; HN, MT. Collected on Salix. Plagiometriona clavata (F.) - U; DM, GF, TR; 19 Jun- ACKNOWLEDGMENTS 8 Aug; MT We are gratefully indebted to Glenn Curtis, Mary Jo Plateumaris shoemakeri (Schaeffer) - U; DM; 12 Apr- Detweiler, Marilyn Greene, Julie Heminway, Melanie 20 Jun; MT LaForce, Alex Luxon, Erin Minnick, Mireya Pasa, Christine Camp-Price, Cheryl Rash-Jones, Jessica Plateumaris rufa (Say) - R; DM; 6-20 Jun; MT Roberts, Lynn Scholz, Suzanne Updike, and Jane Whitaker for diligently sorting beetle specimens from *Prasocuris vittata (Olivier) - R; GF; 12 Apr-10 May; Malaise trap samples. David Smith and Edd Barrows HN. Clark et al. (2004) reported Ranunculus acris L. collected numerous new park records in Malaise traps and possibly R. repens as hosts for this beetle, but run in Turkey Run and Great Falls parks and at Dyke neither of these two species occurs in Great Falls Park, Marsh, respectively. Steve Lingafelter, Deblyn Mead, thus P. vittata is likely using one of the other nine Chris Wirth, and Norm Woodley contributed specimens species of Ranunculus documented from the park by during the 2006 Potomac Gorge Bioblitz. Art Evans Steury et al. (2008). collected numerous leaf beetle specimens from GWMP that are cited in this paper and reviewed collections at Psylliodes sp. ^ (convexior LeConte or punctulatus VMNH, Shenandoah National Park, and Bull Run Melsheimer) - R; DM; 21 Nov-5 Dec; MT Mountains Conservancy. 78 BANISTERIA NO. 41, 2013 LITERATURE CITED Beetles, Volume 2, Polyphaga: Scarabaeoidea through Curculionoidea. CRC Press, Boca Raton, EL. Balsbaugh, E. U., & K. L. Hays. 1972. Leaf beetles of Alabama. Auburn University Agricultural Experiment Downie, N. M., & R. H. Arnett. 1996. The Beetles of Station Bulletin 441: 1-223. Northeastern North America, Volume II. The Sandhill Crane Press, Gainesville, FL. 1,721 pp. Barrows, E. M., S. B. Arsenault, & N. P. Grenier. 2008. 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