J E'JTO\IOL soc BRIT COU '\ IBIA 97. DECE.\IBER 2000

Early records of alien species of (: Prosorrhyncha) in Canada

D.I. BARNES, H.E.L. MAW

EASTERN CEREAL AND OILSEED RESEARCH CENTRE, AGRICULTURE AND AGRI-FOOD CANADA, OTTAWA, ON KI A OC6

G.G.E. SCUDDER

DEPARTMENT OF ZOOLOGY AND CENTRE FOR BIODIVERSITY RESEARCH, UNIVERSITY OF BRITISH COLUMBIA, VANCOUVER, BC V6T IZ4

ABSTRACT Early records for 45 ali en species of Heteroptera in the provinces ac ross Canada are reported. Ni ne of the records constitute ne w provincial records. with 69 others documenting published records of occurrence in detail for the first time . There are also 51 reported occurrences in provinces prior to published literature records.

INTRODUCTION Many alien Heteroptera have become important agricultural crop pests in Canada (Beirne 1972), and more can be expected . The potential invasion appears greatest for those bug species that either overwinter as adu lts, or oviposit in plant ti ssue (Lattin and Oman 1983). Research has thus been initiated on the origi ns, di stribution patterns, pathways of spread, and ecological impact of alien Heteroptera in Canada (Scudder and Foottit 2000). It is important to understand not on ly the history of alien species occurrence and impact in the past, but also to undertake future pest risk assessment and the potential effects of impending climate change. New evidence suggests that in vas ive species share traits that will allow them to capitalize on the various elements of the forthcoming global change (Dukes and Mooney 1999) Hence, over the past few years , most of the major collections of in sects across Canada have been visited, specimens of alien species of Heteroptera examined and named, the capture information databased and the locality data georeferenced . These data have been combined with published records to document the distribution of species in Canada , their probable place of introduction, and their subsequent dispersal. In the process, many new provincial records were discovered. Most of these have been tabulated by Maw et a/. (2000), but the voucher data for these records have not been published. For 45 of the total 79 alien Heteroptera in Canada, we thus document 9 new provincial records (indicated by an asterisk) that are not included in Maw el a/. (2000). plus 69 others that document published records of occurrence in detail for the first time. We cite only the earliest records for the provinces. Our research on collections also shows that so me of the alien species have been collected in provinces earlier than published records currently indicate. Since early records are important for tracing the spread of these species, we document also 51 reported occurrences prior to the Iiterature records. The order of species in the text follows Maw el al. (2000). Provinces (by acronym) are arranged in alphabetical order. 96 J. E:-JTOMOL. SOc. BRI T. COLUIBIA 97, DECE:VIBER 2000

Collection abbreviations are as follows : CNC: Canadian National Collection, Agriculture and Agri -Food , Ottawa, ON , FRNF: Department of Forest Resources and Lands, Corner Brook, NF, LEMQ: Lyman Entomological Museum, Macdonald College, McGill University, Ste-Anne­ de Bellevue, QC: MU: Department of Biology, Memorial University, St. John 's, NF . NSM: Nova Scotia Museum, Halifax, NS . ROM: Royal Ontario Museum, Toronto, ON, UBe: Spencer Entomological Museum, University of British Columbia, Vancouver, Be. UG: Department of Environmental Biology, University of Guelph, Gue lph , ON. USNM: National Museum of Natural History, Smithsonian Institution, Washington, De. Infraorder CIM ICOMORPHA Family ANTHOCORJDAE Anthocoris con{usus Reuter NS: Kentville, 15-17.vii.1966 (L.A. Kelton) [CNC]. Repol1ed from Nova Scotia without date by Kelton (1978),

Orius minutus (Linnaeus) BC: Abbotsford, 7,ix.1950 [CNC]. Previously reported from British Columbia in 1951 by Tonks ( 1953) and Downes (1957),

Family MIRJDAE Tribe MIRINI Adelphocoris lineolalus (Goeze) AB: Elkwater Park, 28,vii, 1952 (L.A, Konotopetz) [CNC], BC: no data, 1964 (J.R. Hill) [LEMQ], ON: Vineland Station, l.ix, 1942 ( W.L.Putman) [CNC], PE: Wood Island, 9.viii.1929 (R.P. Gorham) [CNC]. QC: Mont Royal , 26.viii.1944 [LEMQJ . Recorded from Alberta in 1968 (Craig 1971), Ontario in 1949 (Phillips 1951) and Quebec (Moore 1950; Larochelle 1984) without dates,

Camplozygum aequale (Villers) QC: Saint-Antoine-Abbe, 3,vi, 1983 (Larochelle & Lariviere) [LEMQ],

Caps us ater (Linnaeus) NB: Nashwaak Bridge, 22,vi,1934 (e.E. Atwood) [ROM] . PE: Woods Island, II .vii.1966 (L.A. Kelton) [CNC], Kelton collected this species at 9 localities throughout New Brunswick in late June to early July of 1966,

C/osterolomus norwegicus (Gmelin) BC: Royal Oak, 24.vii.1917 (W. Downes) [CNC], NB: Fredericton, 22,viii, 1940 (R,P, Gorham) [CNC]. PE: Brackley Beach, 24 .vii , 1940 (J . McDunnough) [CNC]. Recorded from British Co lumbia (Ke lton 1959) and Prince Edward Island (Kelton 1982a) without dates,

Phylocoris populi (Linnaeus) * MB: Bald Head Hills (20,9 km (13 mi) n ofGlenboro), 8. viii. 1958 (lG. Chillcott) [CN C]. NS: Halifax, 7-8,viii, 1966 (L.A, Kelton) [CNC] . *ON: Gull L. , 6. vi ii.1918 (H,S, Pari sh) [CNC]. .I EI\TOMOL SOL BRIT CO LL' \I BIA 97. DECEW,ER 2000 97

Phylocoris liliae (Fabricius) NS: Halifax , 7-8.vii i.1966 (LA Ke lton) [CNC] .

Slenolus binolalus (Fabricius) MB: Falcon Lake, 25 .vi.1972 (L.A. Kelton) [CNC]. NS: Kings Co, 15.vi i. 1948 (Ralph 1. Day) [NSM). ON: Trenton, 26. vi. 1911 (Evans) [CN C] . PE: Cavendi sh National Park , 9.vii.1966 (L.A. Kelton) [CNC]. QC: Aylmer, 27.vi.1924 (C. H. Curran) [CN C]. Recorded from Ontario by Gibson ( 191 2) without year, and Manitoba (Kelton 1980), Ontario and Quebec (Carvalho 1959) without dates.

Tribe STENODEMINI Leploplerna do/abrala (L inn aeus) *AB: Hi ghwood Ri ver Picnic Area, Hwy. 541, 24.vii.1994 (MD Schwartz) [CNe] MB Moose Lake, 25 .vi.1972 (L.A. Kelton) [CNC]. NS: Halifax, 1899 [CNC]. Osborn (19 18) and Parshl ey ( 1923) record ed spec im ens from Nova Scotia collected in 191 5; recorded from Manitoba (Kelton 1980) without dates.

Mega/oceroea recticornis (Geoffroy) *AB: Watel10n Park, 3.viii.1994 (M.D. Schwam) [CNC] . NB Fredericton, 23 .vi.1966 (L.A. Kelton) [CNC). NS: Bible Hill , 12.vii.1966 (L.A . Kelton) [CNC]. PE: Cavendish National Park, 9.vii.1966 (L.A. Kelton) [CNC]. QC: North Hatley, 25.vii.I929 (G.S. Walley) [CNC]. Recorded from Quebec by Larochelle (1984) without date, and Wheeler and Hellry (1992) recorded collections from Nova Scotia in 1971.

Pithanus maerkeli ((Herrich-Schaeffer) AB: Elkwater, 16.vii.1952 (A.R. Brooks) [CNC]. NB: Fundy National Park, 6.vii.1966 (LA Kelton) [CNC]. ON: Rondeau Park, 13 .v i.I929 (GS Walley) [CNC]. PE: Cavendish National Park, 9.vii.1966 (LA Kelton) [CNC]. QC: Lani el. 10-I1.vii.1963 (L.A. Kelton) [CNC]. Previously recorded [i'01ll Alberta, New Brunswick, Ontario, Prince Edward Island and Quebec, but without dates (Kelton 1966).

Subfamily ORTHOTYLINAE Tribe HAL TICINI Hallieus apterus (Linnaeus) NB: Fredericton, 192[9?] [CNC] . NF: Pasadena, 24 .viii-3.ix.1985 (B. 4820) [CNC ; FRNF]. PE: Rustico, 4.viii.1966 (L.A. Kelton) [CNC].

Orthocepha/us coriaceus (Fabricius) BC: Galiano Island (north end), I.vii.1976 (G.G.E. Scudder) [UBC]. NB: Woodstock, 22.vi.1966 (L.A. Kelton) [CNC]. NF: Baie D'Espoir, low vegetation in field , II.vii. I 985 (L.H. Hollett) [FRNF]. NS: Lockeport, 2.viii. 1958 (J.R. Vockeroth) [CNC]. ON: Niagara Falls, 7.vii.1955 (L.A. Kelton) [CNC]. PE: Cavendish National Park, 9.vii.1966 (L.A. Kelton) [CNC]. QC: Georgeville, 27.vi. 1936 (G.S. Walley) [CNC). Reported in 1973 fro lll Ontario (Reid el af. 1976). Kelton collected this species frolll 9 localiti es throughout New Brunswick in late June 1966. 98 .I. ENTOMOL. SOC BRIT COLtJ \IBIA 97. DECHII3ER 2000

Orlhocephalus sallalor (Hahn) NF: Carbon ear, 2.vi ii .I925 (1M. Swa in e) [CNC]. QC: L'Anse-Pleureuse, 29.v ii .1984 (Larochell e & Lariviere) [L EMQ].

Tribe ORTHOTYLI NI Blepharidoplerus angula/us (Fa ll en) NB: Sa int John (Rockwood Park), 4.viii .1954 (l .F. Brimley) [CNC] NF: Pasadena, 18.viii. 1984 (D. Langor) [FRNF]. P£: Cavendi sh Nat iona l Park, 3-5.vi i.1966 (L.A. Ke lton) [CNC]. Reported from Prince Edward Island without date (Kelt on 1982a).

Heleroloma planicornis (Pa ll as) BC: Victoria, 6.v iii .1923 (W. Downes) [CNC] . NS: Hali fax , I 0.viii.1980 (LA Kelton) [CNC]. Record ed from British Columbia in 1933 (Downes 195 7), and Nova Scotia without date (Ke lton 1982a).

Melanolrichus concolor (Ki rsc hbaum ) NS: Shelburne, 2.vi ii .1958 (l.R. Vockeroth) [CNC] .

Melanotriehus jlavosparsus (Sahlberg) AB: Manyberries (Experim ental Range), 4.vi ii .195 1 (D.F. Hard wick) [CNC]. BC: Vernon, 22. ix. 1923 (D.G. Gi ll esp ie)[CNC]. MB: Aweme, 19vi 1930 (R .M White) [CN C] . N B: Frederi cton (Experimental Stati on), 18 .v i.1925 [CNC] . N T: Fo rt Simpso n, 19.v i.1 950 (D.P. Whillans) [CNC]. ON: Trenton , 16.ix. 1903 (Evans) [CNC] . P£: Cavendi sh Nati onal Park. 9.v ii . 1966 (L.A. Kelton) [CNC]. SK: Estevan, 27. viii. 1929 (P.e. Brown) [CNC] . Prev iously reported from Ontario in 1914 (G ibson 1917), and A Ib erta, Manitoba and Saskatchewan (Kelton 1980) with out dates.

Melanolrichus virescens (Douglas & Scott) NS: Shelburne, 2.vi ii .1958 (l.R. Vockeroth) [CNC].

Orthotylus nassalus (Fabri cius) ON: Niagara, 25.vii. 1963 (L.A. Kelto n) [CNC].

Subfami ly Tribe PHYLIN I nasutus (Kirshbaum) BC: Saanich District, 6.v ii .1950 (B.P. Beirne) [CNC]. ON: Marmora, 13.vi.1952 (J .e. Mitchell) [CNC].

Asciodell1a obsoletum (Fieber) BC: Vancouver (U BC), 6.vi i. 1959 (G .G. E. Sc udder) [UBC] . Recorded from Br iti sh Columbia in 1963 (Waloff 1966).

Atractotomus lI1agnieornis (Fa ll en) NF: St. John 's, 2.x .1980 (D . Northcott) [M U] . NS: Halifax , 22.vi i.19 76 (LA Kelton) [CNC]. ON: Ald ershot, 6.vii .1955 (L.A. Kelton) [CN C]. J i::'JTO\ IOI. Soc BRIT COL L \IBIA 97. D ECE\'IBER 2000 99

A /r ae/olomus mali (Meyer-OUr) BC: Oli ver, 19. vii.1970 (L.A. Kelton) [CNC] . PE: Charlottetown, 7-1 0.v iii .1976 (L.A. Kelton) [CNC]. Reported from Prince Edward Island without date by Kelton ( 1982a).

Campy /omma verbasci (Meyer-OUr) NS: Kentville, 19.vii.1923 (R.P. Gorham) [CNC]. ON: Jord an, 27.v iii . 191 5 (WA Ross) rUG ]. PE: Dalvay House, 13.viii .1940 (G.S. Walley) [CNC]. Previously reported from Ontario in 1950 (P hillips 195 1) and Nova Scoti a in 193 1 by Gilli att ( 1935).

Compsid% n salice!!ul11 (( Herrich -Schaeffer ) ON: Presque Isle Provincial Park , l4.viii .1991 (M.D. Sc hwartz) [CNC]. PE: Burlington, 4.v iii .1966 (L.A. Kelton) [CNC]. Previously reco rd ed from Prince Edward Island in 1976 by Kelton (1982b).

Lepidargyrus aneori(er (F ieber) BC: Langley, 17.v ii .1959 (LA Kelton) [CNC]. ON: Rain y River Di strict, 30.vi.1924 (l.F. Bri mle y) [CNC].

Lopus dec% r (Fallen) BC: Saltspring Island, 30.v ii .1981 (G. G. E. Scudder) [UBC ]. NB: Fredericton, 192[9?] [CNC]. NF: Pasadena, 3.vii.1984 (D. Lango r) [FRNF). ON: Norway Point (Lake of Bays), 15.vii.I922 (l' McDunnough) [CNC] . PE: Brackley Beach, 29.vii.1940 (G .S. Wall ey) [CNC] . Recorded from Ontario (Carvelho 1958) without date.

Mega/oeo/eus l11 o!!icu/us (Fa ll en) NB: Grey Mills [?=Grey Hill s], 13.v ii .1921 (R.P. G[ orham)) (CNC]. NF: Sil ve rd ale. 3 1.v ii .1980 (L.A. Kelt on) (CNC]. NS: Parrsboro (Ottawa House), 9.viii .1943 (1. McDunnough) [CNC]. ON: Strathroy, 12 .v ii .1936 [CNC] . PE: Wood Island , ix. 1929 (CNC). QC: Forestvi ll e, 8.v iii.1 950 (R. de Ruette) [CNC]. Previously recorded from Ontari o in 1972 by Reid e/ af. ( 1976), Nova Scotia in 1967 by Whee ler and Hen ry ( 1992) and Quebec (Larochell e 1984) without date.

Parapsal/us vile!!inus (Sc holtz) *NS: Kentville, 3-6 .v ii .1976 (L.A. Kelton) (CNC]. ON: Sa int Catharines , 22.v i.1 96 1 (Kelton & Brumpton) (CNC]. Previously record ed from On tario in 1978 (Henry and Wheeler 1979).

P/agiognalhus arbus/orum (Fabricius) BC: Lulu Is., 23.viii.19S4 (W. Downes) [UBC]. NF: St. John 's, Pippy Park, 14.ix. 1982 [FRNF]. Previous ly recorded fro m British Co lumbia in 1959 (Ke lton 1982c) and 1963 (Wa loff 1966). 100 .I 1'1\ '10\101 SOC I3RJ'I C()IL~IniA 97. DECI"J3LR ~O()(l

P/agiognalhus chr,'sanlhemi (Wolff) *r1.B : Waterton Park, 3.v iii .1994 (M.D. Sc hwartz) [CNC] . BC: Creston, 7.viii.19-\8 (D.B. Waddell) [CNC]. NB: Fredericton, l. viii.1919 (R. P. Gorham) [CNC]. /\'F Carbonear, 2.v iii .192 5 (J .M. Swaine) [CNC]. *SK: Melville 5 km E, Rt. 16, 18 .vii .1990 (M.D. Schwartz) [CN C] . Previously reported from British Colu mbi a in 195 1 (Tonks 1953), Newfoundland in 1949 (Lindberg 1958), and New Brunswick (Kelton 1982a) without date.

Sihenarus rOlerlllllndi (Sc holtz) *QC: St-1ean-Baptiste[-de-JRouville, 22.v i.1 992 (1. F. Roch) [CNC].

Tribe PILOPHOR INI Pi/ophorlls perp/e:ws Douglas & Scott BC: Victoria, 3.viii.1927 (W. Downes) [UBC]. ON Guelph, 15.vii.1916 [CNC; UG] . PE: Cavendish, 13-19.viii.1976 (L.A. Kelton) [CNC]. Reported from Ontario by Knight (1941) and from Ontario and Prince Edward Island by Schuh and Schwartz ( 1988) without dates .

Family Diety/a eehii (Schrank) QC: Mont Ro ya l, ex. EchiuIII vulgare L. , 14. vii.1997 (IF.R.) [CNC: USNM].

Dictynota juliginosa Costa BC: Victoria, 29.vii .1957 (N.H Anderson) [CNC]. Previously reported from British Columbia in 1959 (Scudder 1960).

Stephanilis rhododendri Horvath N B: Saint John (Rockwood Park), 12.viii.1953 (J.F. Brimley) [CNC] . NF: Migue ls Lake, 28.ix.1983 (L. H. Hollett) [CNC]. ON: Vine land Station, 16.vii .1963 (W.L. Putnam) [CNC]. QC: Mount Lyall, 12.viii.1933 (W.1. Brown) [CNC] .

Family Empieoris pi/OSlIS (Fieber) NS: Halifax, 22.vii.1976 (L.A. Kelton) [CNC]. ON: DeGrass i Point, 14.viii.1915 (E.M. Walker) [ROM]. QC: Brome, 9.vi.1948 (G.S. Walley) [CNC].

Empieoris vagabundus (Linnaeus) NF: Crooked Lake, 19.viii.1984 (L.H. Hollett) [CNC]. NS: Halifax, 8.viii.1966 (LA Kelton) [CNC]. ON: Prince Edward County, l .v iii .1940 (1F. Brimley) [CNC]. PE: Rustico, 4.viii.1966 (L.A. Kelton) [CNC] . QC: Quebec. 24.viii .1959 (A.E. Strasby) [CNC].

Fam il y Be/)'tinlls minor « Herrich-Schaeffer) QC: Ste-Anne-de-Bellevue, 24.v.1947 (G .A. Moore) [LEMQ]. Previously reported in Quebec without date (Moore 1950).

Family Mega/onolus sabulico/a (Thomson) ON: Prince Edward County, 9.v.1965 (IF. Brimley) [CNC] . .I le'\ TO\IOL soc l3RIT COl.L \ 1I3J..\ 97. D I-Cf'II3E R "(JOO 10 1

Sf),gnocoris msfic/ls (Fallen) AB: Millet, II.viii.1993 (A.S. McClay) [CNC). *NB: Saint Andrews , 30.ix.1984 (G.G .E. Scudder) [CNC) . NF: St. John 's, Lo ng Pond, 12.vii i.1977 (D. La rson) [CNC) . QC: Mont Royal, 27.vii i.1907 [CNC). Prev iously reported from Quebec in 1916 (Criddle 1922).

Stygnocoris sabulos/ls (Schi lling) AB: Brocket, 19 km N, 49°43'N 113 °45'W, 14 10 Ill, pan trap. 10-14.vii i. 1998 (1<. White) [CNC]. NB: Fredericton, 30.viii. 1949 (DG Cameron) [CNCJ. ON: Guelph , 10.ix. 1971 (CD. Rollo) lUG]. PE: Charlottetown, 7-10.viii.1976 (LA Kelton) [CNC).

Family Picrolllerlis bidens (L inn ae us) NB: Ko uchibouguac Nati onal Park, 2 1.vii . 1977 (S .1 . Miller) [CNC). NS: Am herst Shore, Il.viii.1980 (J Gi lh en) [NS M). ON: York Co .. Whitchu rc h, 8.vi ii. 1974 (Antonu cc i) [ROM ]. PE: Charlott etown, 7- 10.viii .1976 (LA Kel ton) [CNC). Reported fr om New Brunswi ck, Nova Scoti a, Ontari o and Prin ce Edwa rd Island (Lari viere and Laroch ell e 1989) without dates, but record ed from Quebec in 1968 by Ke lton (1972).

ACKNOWLEDGEMENTS Research was supported by grants to G.G.E. Scudder from the Natural Sciences and Engi nee rin g Research Coun cil of Canada. We are ind ebted to D.C Curr ie, R.G. Foottit, R.C Froeschn er, 1. Heron, L. H. Holl ett, OJ. Larson, S.A. Marshal l, M.D. Schwart z and K. White fo r suppOt1, loa n of materi al or help with record s.

REFERENCES Beime, BP I 972 . Pest in sects of annual crop plants in Canada, IV , Hemiptera- !-I 0Jl1 0p lera; V, Onhop tera: VI.. Other gro up s. Me moirs of th e Ento Jl1 olog ical Society of Canada 85: I -73 . Carvalho , J.C.M 1958 . A catalogue of the orthe wo rl d Pa rt II. Su bfa mi ly Phylll1 ae . Arquiros do Museu Nac ional, Rio de Janeiro 45(2): 1-216. Carvalho, .I .e.M. 1959. A catalogue orthe Mindae of th e Wo rld . Pan IV. Subfamil y Mirin ae. Arqui ros do Muse u Nac ional , Rio de .l aneiro 48(4) 1-384 . Cra ig. c. !-I . 1971 Distrib ut ion of Ade/phacaris linea/a/us (Heteroptera Mi ri dae) in wes lern Ca nada . The Canadian Entomologist 103 :280-281 Criddle, N. 1922. The entomologic al record, 192 1 Annu al Report of th e Entomolog ical Soc iety of Ont ano 52( I 92 I ) 57-70. Downes , W. 1957. Notes on so me Hemiptera which have been introdu ced into Briti sh Colum bia. Proceedings of th e Entomological Society or British Columbia 5411 -1 3. Dukes, .I S. and H.A. Mooney. 1999. Does global ch ange inc rease th e success of bi ologica l i n va d e r s~ Trend s In Eco logy and Evo lu ti on 14 : 135 -139 . Gibson. A. 19 I 2. The entomological reco rd , 19 I I Annu al Repo n or the Entomolog ica l Society of Ont ari o 42( 191 1)89- 11 2. Gi bson , A. 19 17. The entolllological reco rd , 1916. Annual Repo rt of the Entomolog ical Society of Ontari o 47( 1916) 137- 171. Gill iatt, F.e. 1935 . Some predators of th e Euro pean red mite. Para/e/ranvchlls pilaslls C.&F . In Nova Sco ll a Canadian Journal of Resea rch 13(Dl(2): 19-38 . Henry, 1..1 . and A.G . Whee ler, .Ir. 1979. Pa learcti c Mi ridac in Nort h America. records ofn~\\' I \' disco\ ercd and little-known species (Ilemiptera Il elero pt era) Proceed in gs or lil ~ i:: ntllmo logical Society or Waslli nglO n 81257-268. 102 .I. ENTOMOL. SOC BR IT. COLUMBI A 9 7. D ECEM BER 2000

Kelton, LA 1959. Male genitalia as taxonomic characters in the Miridae (Hemiptera). Th e Canadian Entomologis t Supplement 11 .1-72 . Kelton, LA 1966. Pithanus maerkeli (Herrich-SchafTer) and I/ctitocoris signatus Reuter In North America (Hemiptera Miridae) The Canadian Entomologist 98 1305- 1307. Kelton, LA 1972 . Picromerus bidens in Canada (Heteroptera Pentatomidae). The Canadian Entomologist 104 1743 -1744. Kelton, LA. 1978 . The of Canada and Alaska. Heteroptera Anthocoridae . Research Branch, Canada Department of Agriculture Publication 1639: 101 pp . Kelton, LA 1980. The and arachnids of Canada. Part 8. The plant bugs of the Prairie Provinces of Canada (Heteroptera Miridae) Agriculture Canada Research Publicalion 1703408 pp . Kelton, LA 1982a. Plant bugs on fruit crops in Canada. Heteroptera Miridae. Research Branch, Ag ri culture Canada Monograph 241-20 I. Kelton, LA 1982b. Description of a new species of Plagionathlls Fieber and additional records of European Psai/lls salicei/lls in the Nearctic Region (H eteroptera Miridae). The Canadian Entomologist 141 69-172 , Kelton , LA 1982c. New and additional records of Pale arctic Phyllis Hahn and Plagiognathlls Fieber in North America (Heteroptera: Miridae) The Canadian Entomologists 1141127-1128. Knight, H.H. 1941 . The plant bugs, or Miridae, of Illinois. Illinois Natural History Survey Bulletin 221-234. Lariviere, M.-C and A Larochelle. 1989. Picromerus bldens (Heteroptera Pentatomidae) in North America, with a world review of distribution and bionomics. Entomological News 100: 133-146. Larochelle, A 1984. Les punaises terrestres (He teroptera: Geocorises) du Quebec Fabreries, Supplement 35 13 pp. Lattin, J.D. and P. Oman. 1983 . Where are the exotic in sec t threats? pp. 93-137. In : Wilson, C.L and C L Graham (Eds.) Exotic Plant Pests and North American Agriculture. Academ ic Press, New York Lindberg, H. 1958 . Hemiptera Heteroptera from New foundland , collected by th e Swedish-Finnish LxpedItlon of 1949 and 1951. Acta Zoologica Fennica 961-25. Maw, H.E.L, R.G. Fooltit, K.G.A. Hamilton and G.G.E. Scudder. 2000. Checklist of th e Hemiptera of Canada and Alaska. NRC Research Press, Ottawa. 220 pp. Moore, G.A 1950. Catalogue des Hemipteres de la Province de Quebec Le Naturaliste Canadi en 77 .233-271 Osborn, H. 1918 . The meadow plant bug, Miris dolabratus. Journal of Agricultural Research 15175-200. Parshley, H.M. 1923. Records of Nova Scotian Hemiptera-H eteroptera. Proceedings of the Acad ian Entomological Society 1922: 102-108 . Phillips, .l.H.H. 1951 An annotated list of Hemiptera inhabiting so ur cherry orchards in the Niagara Peninsula. Ontario. The Canadian Entomologist 83 : 194-205 . Reid, DG , Cc. Loan and R. Harmsen. 1976. The mirId (Hemiptera) fauna of Solidago canadel1lsls (Asteraceae) in south-eastern Ontario. The Canadian Entomologi st 108561-567. Schuh, RT and M.D. Schwartz. 1988. Revision of the New World Pilophorini (Heteroptera Miridae Phylinae ) Bulletin of the American Museum of Natural History 187101-20 I Scudder, G.G.E. 1960. Dictyonorajuliginosa Costa (He miptera Tingidae) in th e Nearctic. Proceedings of the Entomological Society of British Co lumbia 57:22. Scudder, G.G.E. and R.G . Foottit. 2000. Alien bugs (Insecta: Hemiptera) in Canada: Distribution patterns, pathways of spread and ecological impact (in) Claudi, R. (cd .) Ecosystem Globalization Threat to Canadian Biodiversity. Natural Resources Canada, Ottawa (in press). Tonks, N. V 1953. Annotated li st of insects and mites collected on brambles in the lower Fraser Va ll ey, BrIti sh Columbia, 1951 . Proceedings of the Entomological Society of BrItish Columbia 4927-29. Waloff, N. 1966. Scotch broom (Sarothamnus scoparius (L) Wimmer) and its in sect fauna introduced in to the Pacific Northwest of America. Journal of Appli ed Ecology 3:293-311 Wheeler, Jr, A.G. and TJ. Henry 1992 . A synthesis of th e Holarct ic Miridae (Heteroptera) DistrIbution, biology , and origin, with emphasis on North America. The Thomas Say Foundation 15282 pp