■ ^ Agriculture Canada Research Direction generale Branch de la recherche Contribution 1 983-1 6E The arthropod fauna of potato fields: composition and abundance 630.72 C759 C 83-16 OOAg c.2 i?*mjS Canada1 The map on the cover has dots representing Agriculture Canada research establishments. * LIBRAE > e * ,§ 1* Canada 3 C0 b.buotm:o«€ ou eL0G. ^ £ OTTAWA OMTAWO gi The arthropod fauna of potato fields: composition and abundance GILLES BOITEAU Research Station Fredericton, New Brunswick Research Branch Agriculture Canada 1983 Copies of this publication are available from: Dr. Gilles Boiteau Research Station Research Branch, Agriculture Canada P.O. Box 20280 Fredericton, New Brunswick E3B 4Z7 Produced by Research Program Service ©Minister of Supply and Services Canada 1983 Table of Contents Introduction 1 Materials and methods 2 List of arthropods associated with potatoes 3 Arachnida 4 Diplopoda 4 Chilopoda 4 Collembola 4 Ephemeroptera 4 Orthoptera 4 Plecoptera 4 Thysanoptera 4 Hemiptera 4 Neuroptera 8 Coleoptera 8 Mecoptera 18 Trichoptera 18 Lepidoptera . . , 18 Diptera 18 Hymenoptera 21 Seasonal abundance of selected groups of arthropods 30 Arachnida 31 Hemiptera 33 Coleoptera 42 Diptera 49 Hymenoptera 50 References 56 Acknowledgements 57 SUMMARY One of the basic requirements for high yield and high quality potatoes is good insect control. This in turn necessitates an understanding of the crop environment and more particularly of the arthropod community. This technical bulletin contains a complete list of the more than 565 different species of arthropods collected in a survey of New Brunswick potato fields carried on between 1979 and 1981. The total yearly catches of each species or group-species and the seasonal abundance of common or important groups are presented in tabular form. It will provide extension specialists, entomologists and quarantine officers with a checklist of insect species that can be found on potatoes and data on the relative abundance and seasonality of these arthropods. Resume Pour obtenir des pommes de terre de haute qualite et un rendement eleve il faut, entre autres, bien controler les insectes nuisibles. Ceci requiert une bonne comprehension du milieu de culture et plus parti culierement de la communaute arthropodienne. Ce bulletin technique contient une liste complete des quelques 565 differentes especes d'arthropodes receuillies lors d'un inventaire des champs de pomme de terre du Nouveau-brunswick realise de 1979 a 1981. Les captures annuelles totales de chaque espece ou groupe d'especes et l'abondance saisonniere des groupes communs ou importants sont presentees sous forme de tableaux. Ce bulletin fournira aux specialistes de 1'extension, aux entomologistes et aux officiers en charge de la quarantaine une liste de controle des especes d' insectes susceptibles de se trouver sur pommes de terre et des donnees sur l'abondance relative et saisonniere de ces arthropodes. INTRODUCTION The potato is a solanaceous plant which originated from the Andes in Peru. Introduced in Canada in 1623, it is now planted in 108,300 ha of which 22,000 are in New Brunswick (CIP 1980, NBDA 1981). Due to the importance of export markets--36% of the province's total production (New Brunswick Department of Agriculture 1981)--particularly high standards Of seed quality have been set for New Brunswick potatoes. One of the basic requirements for high yield and high quality potatoes is good insect control. Insect pests are well known (Hodgson et al. 1974, MacGillivray 1979 a, b, Radcliffe 1982) but the rest of the arthropod community has never been fully surveyed (Shands and Landis 1964, Shands et al . 1965, 1972). It is important to know the entire fauna because all species are linked together by their effects on one another and the environment they share. Insect control methods do not affect only the target species but all the other ones that depend on it or simply inhabit the same immediate space. A faunal survey of New Brunswick potato fields was carried out during the 1979, 1980 and 1981 growing seasons and has identified more than 565 different species or group species from the more than 477,150 specimens collected. To our knowledge this is the first comprehensive survey of arthropods in potato fields in North America. This bulletin provides a complete listing of the species collected each year. In a second part, the seasonal abundance of important or common arthropods (generally at the family level) is presented in a tabular form for each sampling method. Four sampling procedures were used to get as complete a picture as possible of the whole community, gather some information on their habitat preference (e.g. foliage or ground species) and their ability to disperse by flight (yellow water pan catches). The structure of the community has been described elsewhere (Boiteau 1983). Specimens of each taxon are maintained in the potato reference collection at the Fredericton Research Station. MATERIALS AND METHODS Except for Charlotte, Saint John and Albert, all counties of New Brunswick were surveyed in the 1979 and 1980 growing seasons. In 1981 the survey was limited to the major potato growing areas of Carleton, Victoria and Madawaska. All fields belonged to growers participating in the New Brunswick potato pest management program. Some fields were insecticide' free but most received between 1 and 6 spray applications. This was not considered detrimental, but on the contrary, an integral part of the artificial environment of the potato field. Fields were sampled by sweepnet, ground cloth, pitfall traps and yellow water pans. Sweepnet samples were taken from a 60 x 60 m area approximately 60 m from the edge of each field. A scout walked between 2 rows swinging a 38 cm diam sweepnet upward alternatively on each row synchronized with successive steps. Four sets of 50 sweeps randomly selected were taken in each field. Samples were taken weekly from the time plants reached 38 cms to top kill or the end of August. Forty three, 45 and 6 fields were sampled in 1979, 1980 and 1981 respectively. The location and timing of ground cloth samples were similar to those used in the sweepnet procedure. A 1 meter square cloth was unfolded between 2 rows and about 2 m of foliage from each side vigorously shaken over the cloth. Four samples were collected randomly in each of 43, 35 and 6 fields in 1979, 1980 and 1981 respectively. Pitfall traps consisted of a 0.5 L plastic cup (31 cm perimeter, 12 cm depth) sunk into the top of the row and 1/3 filled with a 50% solution of ethylene glycol and water as preservative. A 15 x 15 cm aluminum shade cover mounted on 15 cm nails was positioned approximately 5 cms above the cup to protect its contents from precipitation. Traps were emptied once a week from the time of planting to the end of August. Ten to twenty traps were placed in each of 21, 16 and 7 fields in 1979, 1980 and 1981 respectively. Yellow water pans measured 35 x 47 cm. Two pans were located in the center of a 60 x 60 m area adjacent to the access road but halfway between the sidelines of each field. The first trap was 15 m from the edge and the second one 30 m further on the same row. Traps were eniDtied twice a week. Traps were operated in 51 fields in 1979, 51 in 1980 and 9 in 1981. All samples were brought back to the laboratory for identification and counting. Collections were sorted into morpho-species which were pinned and assigned a reference number. Representative specimens of e\/ery putative species were then submitted to specialists at the Agriculture Canada Biosystematic Research Institute, Ottawa, for identification. ARTHROPODS ASSOCIATED WITH POTATOES This list contains all of the arthropod species or group-species collected in potato fields throughout the province of New Brunswick during three successive years. The list is arranged according to the classification of Borror et al. (1976) except for the families and genera that are arranged alphabetically. The total number of specimens collected is given for each taxon and each year. Class Order Total catch Family Species 1979 1980 1981 Arachnida 3,521 4,001 1,870 Diplopoda 109 993 667 Chilopoda 62 662 141 Insecta Collembola 2081 691 341 Ephemeroptera 15 21 0 Orthoptera 165 155 41 Plecoptera 17 75 2 Thysanoptera 10,364 1,259 2 Hemiptera Alydidae Alydus eurinus (Say) 0 3 0 Anthocoridae Anthocoris sp. 29 14 0 Orius sp. 33 17 0 Aradidae Aradus sp. 0 1 0 Berytidae (?) 18 11 0 Corizidae Corizus sp. 0 9 0 Cryptocerata 12 0 18 Cydnidae Corimelaena pul icaria (Germar) 3 16 0 Sehirus cinctus (P.B.) 10 39 0 Order Family Total catch Species 1979 1980 1981 Lygaeidae Corythucha sp. 10 0 0 Cymus sp. 9 1 0 Geocoris sp. 8 10 0 Nysius sp. 2 0 0 Ortholomus sp. 1 1 0 Stygnorocoris pedestris (Fallen' 12 0 0 Unidentified 29 4 2 Mi ri dae Adelphocoris lineolatus (Goeze) 12 3 6 Adelpho con's rapidus (Say) 1 0 0 Caps us ater (Linn. ) 0 2 0 Dicyphus sp. 1 1 0 Halticus sp. 132 20 0 Irbisia reuter 0 4 0 Leptopterna dolbratus (Linn.) 1 1 0 Lygocoris sp. 1 1 0 Lygus sp. 909 650 0 Monalocoris americanus Wands. 32 1 0 Phytocoris sp. 12 0 0 Plagiognathus sp. 40 24 0 PI agiognathus chrysanthemi (Wolff) 0 19 0 Poecilocapsus lineatus (Fab.) 4 6 0 Stenodema sp. 46 5 0 Stenodema vicinum (Prov.) 5 3 0 Trigonotylus sp. 43 42 0 Unidenti fied 34 14 0 Order Family 1 Total catch Species 979 1980 1981 Nabidae Nabis sp. 19 0 0 Nabis ferus (Linn.) 4 15 0 Nabis flavomarginatus Scholtz 13 1 0 Nabis rufus cuius Reute r 20 22 0 Pentatomidae Cosmopepla bimaculata (Thomas) 6 64 0 Euschistus tristigmus (Say) 6 3 0 Picronerus bidens (L.) 2 0 0 Sciocoris microphthalmus Flor. 1 1 0 Reduviidae Sine a diadema (Fab.) 1 1 0 Saldidae Unidentified 8 11 0 Tingidae Acalypta sp. 1 0 0 Aleyrodidae 331 26 0 Psyllidae 1 ,030 6 ,075 3 Aphididae Myzus persicae 1 ,670 646 15 Macros iphum euphorbiae 13 ,044 6 ,981 247 Aphis nasturtii 6 ,162 3 ,270 112 Unidentified 69 ,586 41 ,986 1,559 Cercopidae Unidentified 951 1 ,748 21 Cicadellidae Agallia quadripunctata (Prov. ) 5 - - Anoscopus sp. 6 - - Order Fami ly Total catch Species 1979 1980 1981 Anoscopus flavostriata (Don.) 1 Aphrodes bicinctus (Schr.) 1 Arboridia (Erythridul a) crataegi 4 - Athysanus argentarius Mete. 1 Draeculacephala antica (Wlk.) 4 - Elymana sp. 84 - Empoasca copula Dec. 1 Eupteryx atropunctata (Goeze) 43 - Eupte ryx flavoscuta Gill. 1 Evacanthus interruptus (L.) 2 - Graphocephala coccinea (Forst.) 5 - Graphocraerus ventral is (Fall.) 5 Helochara communis Fitch 52 - Idiocerus lunaris Ball 3 - Latalus (Errastunus) ocellaris (Fall.) 219 Macrophis basalis (Van D.) 19 Macrophis canadensis (Van D. ) 9 Macrosteles fascifrons Complex 736 Oncopsis citra Hmlt. (ms name) 29 - Oncopsis flavi dorsum (Am. and Serv.) 56 - Oncopsis sobria (Wlk.) 58 Ophiola osborni Ball 16 - Scaphoideus sp. 96 - Scaphytopius latus (Bak.) 49 - Thamnotettix confinis (Zett.) 15 Unidentified 219 2,486 2,050 Delphacidae Liburnia incerta Van D. 18 0 0 Order Family Total catch Species 1979 1980 1981 Membr'acidae 107 206 3 Fulgoroidea 56 2,067 23 Neuroptera Chrysopa sp. 20 2 0 Heme rob i us sp. 12 36 0 Coleoptera Alleculidae Isomi ra quadristri ata Coupe r 1 281 0 Anthicidae Anthicus sp. 12 2 0 Notoxus sp. 1 20 0 Biphyllidae Diplocoelus sp. 2 5 0 Buprestidae Agrilus sp. 2 2 0 Anthaxia sp. 0 3 0 Buprestis sp. 0 1 0 Chrysobotris sp. 0 4 0 Byrrhidae Byrrhus sp. 1 11 0 Simplocaria sp. 12 22 1 Syncalypta spinosa Ros s 1 0 12 Cantharidae Cantharis sp. 16 12 1 Cantharis rufa L. 131 581 89 Chauliognathus pennsyl v amicus DeGeer 8 1 0 Ma 1th odes sp. 4 0 0 Podabrus sp. 8 2 17 Order Total catch Fami 1 y Species 1979 1980 1981 Podabrus modestus Say 10 0 0 Podabrus rugosulus Lee. 3 4 0 Podabrus simplex Coup. 0 2 7 Carabidae Amara sp. 28 105 33 Anisodactylus sanctaecrucis F. 6 51 10 Agonum sp. 85 74 421 Agonum cupripenne Say 0 in 0 Agonum octopunctatum F. 0 19 1 Agonum placidum Say 1,978 4,379 67 Bembidion 4-Maculatum oppositum Say 941 995 278 Bradycel lus sp. 23 150 0 CI i vina sp. 194 578 96 Calosoma calidum F. 0 2 0 Carabus granulatus L. 3 243 18 Carabus nemoralis Mull. 2 805 13 Chlaenius sericeus Forst. 0 12 12 Chlaenius tricolor DeGeer 0 14 1 Dyschi ri us sp. 2 25 11 Elaphrus sp. 0 3 0 Harpalus sp. 86 29 92 Harpalus affinis Schr. 36 335 499 Harpalus rufipes DeGeer 1,022 18,671 1,803 Lebia sp. 4 52 1 Notiophilus sp. 3 3 0 Pterostichus lucublandus Say and 1 1,255 1,164 3,431 Pterostichus melanarius 111. _J Sphaeroderus sp. 1 4 0 Order Family Species Total catch 1979 1980 1981 Stenolophus comma F. Tachys sp. Unidentified Cephaloidae Cephaloon sp. Cerambycidae Bell ami ra scalaris (Say) Brachysomida bivittata (Say) Clytus ruricola (01 i v.) Cosmosalia chrysocoma (Kby.) Monochamus scutellatus Say Psenocerus supernotatus (Say) Pygoleptura nigrella nigrella (Say) Saperda tridentata 01 i v. Trachysida mutabilis (Newm.) Typocerus velutinus (Oliv.) Chrysomeli dae Acalymma vittatum (Fabricius) Altica sp. Bromus obscurus (L. ) Calligrapha sp. Calligrapha californica coreopsivora Capraita subvittata (Horn) Chartocnema confinis Crotch Chrysomela sp. Crepidodera sp. Diachus auratus (Fabricius) Dibolia boreal is Chevrolat Disonycha xanthomelas (Dalman) 5 24 40 1 2 3 5 50 0 66 0 0 1 1 0 0 1 - 1 0 - 2 2 - 0 1 - 0 1 - 0 1 - 0 1 - 2 1 1 1 0 - 0 1 0 0 5 - 0 1 - 0 1 - 0 3 2 21 9 - 105 142 - 0 4 1 53 448 1,052 2 5 - 18 182 73 0 3 - 10 Order Family SDecies Total catch 1979 1980 1981 Do'nacia aequalis Say Donacia emarginata Ki rby Donacia sulciollis Lacordaire Epitrix sd. Epitrix cucumeris (Harris) Glyphuroplata porcata (Melsheimer) Leptinotarsa decemlineata (Say) Longitarsus sp. Metriona bicolor Fabricius Orsodacne atra Ahrens Pachybrachis sp. Phratora sp. Phyllotreta cruci ferae Goeze Phyllotreta robusta LeConte Phyllotreta striolata (Fab.) Psylliodes napi (Fabricius) Psylliodes punctulata Melsheimer Pyrrhalta sp. Scelolyperus cyanellus (LeConte) Sumitrosis inaequalis (Weber) Systena frontalis (Fab.) Trirhabda boreal is Blake Trirhabda canadensis (Kirby) Unidentified Cleroidea Unidentified Cleridae Necrobia sp. 1 19 0 3 0 5 192 77 16,082 12,899 1 1 569 317 28 69 2 6 21 6 0 2 1 1 53 57 2 0 2 18 4 24 1 1 1 1 4 9 0 1 45 3 1 0 1 0 0 1 2 7 0 0 21 0 229 0 1 0 0 2 1 1 0 85 0 0 0 0 0 0 0 7 11 Order Fami 1 y Species Total catch 1979 1980 1981 Cocci nel lidae Adalia bi punctata L. Anatis quindecimpunctata (Olivier) Brachyacantha ursina (Fab.) Chilocorus stigma (Say) Coccinella novemnotata Herbst Coccinella transversoguttata Coccinella tri fas data L. Hippodamia parenthesis (Say) Hippodamia tridecimpunctata tibialis(Say) 77 Hyperaspis sp. Hyperaspis undulata (Say) Hyperaspis uniformis Mulsantina pi eta (Randall) Psyllobora vi rgintimaculata (Say) Scymnus sp. Stetho rus pun cti 1 1 um WS Larvae Cryptophagidae Anchicera sp. Atomaria sp. Unidentified Cucujidae Unidentified Curculionidae Acalles sp. Anthonomus sp. Unidentified 3 4 0 0 2 0 2 2 0 0 2 0 0 20 3 690 520 38 2 28 1 2 0 - 77 335 5 2 0 - 0 10 - 1 0 - 43 36 - 0 12 1 2 24 - 5 0 2 63 - - 213 8 0 13 4 0 2 8 0 3 0 0 1 0 0 1 0 1 12 Order Family Total catch Species 1979 1980 1981 Barypithes sp. 0 4 - Ceutorhynchus sp. 77 368 2 Grypus equisetti F. 0 4 12 Gymnaetron sp. 1 1 6 Hylobius sp. 0 62 14 Hypera sp. 0 1 - Hyperodes sp. 36 13 - Magdalis sp. 4 0 2 Microtrogus sp. 42 8 - Otiorhynchus sp. 30 21 13 Philopedon sp. 28 21 5 Phyllobius sp. 1 1 8 Rhinoncus sp. 65 411 6 Si ton a sp. 33 12 1 Trachyphloeus sp. 3 6 - Tychius sp. 15 0 - Dermesti dae Unidentified 1 0 0 Dytiscidae Agabus sp. 0 1 8 Laccophilus sp. 1 0 0 El ate ri dae Agriotes sp. 3 1 0 Agriotes mancus (Say) 0 37 12 Agriotes sputator (L.) 92 1 17 Ctenicera sp. and Hypolithus sp. 292 476 6 Dalopius sp. 2 1,097 3 Hemicrepi di us sp. 1 1 3 13 Order Total catch Family Species 1979 1980 1981 Melanotus sp. 2 3 14 Negastrius sp. 7 33 0 Oestodes sp. 1 4 0 Unidentified 5 0 0 El mi dae Optioservus tri vittatus (Brown) 1 0 0 Stenelmis sp. 2 0 0 Endomychidae Mycetina sp. 0 1 0 Erotylidae Tri pi ax sp. 1 2 0 Helodidae Cyphon sp. 3 8 0 Heteroceridae Heterocerus sp. 0 6 0 Histeridae Unidentified 2 6 5 Hydrophilidae ■ Anacaena limb at a F. 19 17 0 Cercyon sp. 2 4 0 Cercyon anal is Payk. 2 0 0 Cercyon quisqui 1 i us L. 1 0 0 Cymbiodyta sp. 0 20 1 Helophorus sp. 40 214 0 Helophorus gran dis 111. 15 48 19 Hydrobius fusci pes L. 3 13 1 Paracymus subcu ipreus Say 4 0 0 14 Order Fami ly Tot al catch Species 1979 1980 1981 Lagriidae Arthromacra aenea Say 0 2 0 Lampyridae Lucidota atra F. 3 0 1 Ellychnia corrusca L. 0 5 6 Lathridiidae Corticaria sp. , Mel an Leiodidae opthal ma sp. , others 324 7 83 2 9 7 0 8 0 1 0 0 1 23 0 0 3 0 Limnebiidae Hydraena sp. 0 158 Melandryidae Emmesa labiata Say Orchesia castanea Melsh Meloidae Epi cauta sp. Lytta sp. Melyridae Malachius sp. Mordellidae Glipa sp. (?) Mordel la sp. Unidentified Nitidulidae Brachypterolus pulicarius (L.) Colopterus sp. Epuraea fl avomaculata Maxlin Glischrochilus quadrisignatus (Say) 2 0 0 0 7 0 0 2 0 2 1 0 0 1 0 1 0 0 765 883 792 15 Order Total catch Family Species 1979 1980 1981 Meligethes sp. 78 2,231 6 Omosita colon (L.) 0 6 1 Oedemeridae Ditylus caeruleus (Rond.) 0 1 0 Nacerdes melanura (L.) 1 0 0 Orthoperidae Unidentified 2 0 0 Pedilidae Unidentified 1 1 0 Ptiliidae Unidentified 5 0 0 Ptinidae Ptinus sp. 0 29 0 Salpingidae Salpingus sp. 1 0 0 Scarabeidae Aphodius sp. 13 14 103 Aphodius distinctus Mull. 0 1 1 Aphodius erraticus L. 0 2 0 Dichelonyx subuittata Lee. 0 6 1 Di plot axis tristus Kby. 3 2 23 Onthophagus nuchicornis L. 0 2 3 Trichiotinus assimilis (Kby.) 3 14 0 Unidentified 9 2 14 Scolytidae Dryocoetes sp. 17 3 0 Hylurgops sp. 0 3 1 16 Order Family Total catch Species 1979 1980 1981 Hylurgopinus sp. 0 12 0 Polygraphia sp. 2 2 0 Scydmaenidae Euconnus sp. 0 1 0 Si 1 phi dae Nicrophorus sp. 2 27 7 Oiceptoma novaboracensis Forst. 0 4 0 Silpha surinamensis Fab. 0 1 0 Staphylinidae Acylophorus sp. 55 225 24 Aleochara sp. 1 0 3 Aleocharinae s. fam. 49 48 1 Erichsonius sp. 2,031 1,432 109 Eusphalerum sp. 14 22 0 Hypnogyrus hamatus Say 86 417 932 Ontholestes cingulatus Grav. 1 0 0 Oxytelus sp. 2 0 9 Philonthus sp. 2,302 1,767 1,084 Philonthus cyanipennis Fab. 4 0 0 Platystethus sp. 19 20 1 Tachinus sp. 1 2 2 Tachinus limb at us Melsh 21 67 0 Tachyporus sp. 71 64 1 Tachyporus nitidulus (Fab.) 5 5 0 Staphylinus badipes Lee. 8 8 303 Throscidae Throscus sp. 23 90 0 Aulanothroscus sp. 9 1 0 17 Order Fami 1 y Total catch Species 1979 1980 1981 Coleoptera larvae 157 1 ,254 1,089 Me c opt era 5 5 0 Tri choptera 93 1 1 Lepidoptera 646 984 - Diptera Nematocera 44,011 16 ,347 2,674 Brachycera Asilidae Asilus sp. - 81 0 Laphria sp. - 8 0 Laphria sadales Walker - 1 0 Neoitamus orphne (Walker) - 1 0 Unidentified spp. 472 24 0 Dolichopodidae Condylostylus nigrofemoratus (Walk.) 100 925 0 Condylostylus sp. or spp. 186 516 0 Chrysotus sp. or spp. 152 757 0 Dolichopus sp. 0 103 0 Dolichopus spp. 127 2 ,676 0 Dolichopus cuprinus Wied. 0 147 0 Dolichopus gratus Lw. 0 6 0 Medetera spp. 180 5 2 Thrypticus sd. 83 0 0 Tabanidae Chrysops ater MacQ. 32 2 - Chrysops excitans Walk. 8 17 - 18 Order Family Species Total catch 1979 1980 1981 Chrysops furcatus Walk. Chrysops mitis O.S. Hybomitra affinis (Kirby) Hybomitra epi states O.S. Hybomitra ill ota (O.S.) Hybomitra lasiophthalma (MacQ.) Hybomitra zonal is (Kirby) Chetogena sp. Cryptomeigenia simplex Curran Euexorista futilis (O.S.) Euexorista mella (Wlk.) Eulasiona comstocki Tns. Oswaldia ass i mil is (Tns.) Ph ryxe sp. Ptilodexia sp. Voria ruralis (Fallen) Winthemia fumiferanae Tothill Cyclorrhapha Anthomyiidae Hylemya alcathoe Walker Calliphoridae Cynomopsis cadaverina (R.D.) Phormia regina (Meig.) Pollenia rudis (Fab.) Musci dae Musca autumnal is Musca domestica Linne Ophyra aenescens Wied. X 0 2 40 3 1 22 1 0 0 2 25 9 0 1 81 14 90 14 502 50 14 1 99 0 0 0 0 0 0 19 Order Family Total catch Species 1979 1980 1981 Sarcophagi dae Agria housei Shewell and 756 Ravinia latisetosa Park. Bellieria melanura (Mg.) 286 Helicobia rapax (Walk.) 5 - Ravinia sp. 53 Ravinia querula (Walk.) 248 Sarcophaga aldrichi Park. 136 Sarcophaga nearctica Park. 25 - Sarcophaga sinuata Mg. 15 - Scatophagidae Scatophaga stercoraria (L.) 18 1 Syrphidae Carposcalis obscurus (Say) Chalcosyrphus vecors O.S. Cheilosia sp. Eristalis sp. Eri stall's arbustorum (L.) Eumerus strigatus (Fallen) Helophilus fasciatus Walk. Melanostoma sp. Metasyrphus americanus (Wd.) Metasyrphus perplexus (Osb.) Parasyrphus sd. Platycheirus spp. Platycheirus scambus Staeg. Polydontomyia curvipes (Wied.) Sericomyia militaris Walk. 31 0 0 0 3 0 0 2 0 2 11 0 5 33 0 425 400 0 2 1 0 15 0 0 0 1 0 0 1 0 0 1 0 26 13 0 0 5 0 1 2 0 0 2 0 20 Order Family Fotal catch Species 1979 1980 1981 Sphaerophoria sp. or spp. 0 24 0 Sphaerophoria philanthus (Mg.) 138 612 2 Syritta pipiens (L. ) 1 2 0 Syrphus ribesii (L.) 9 6 0 Syrphus torvus O.S. 0 31 0 Temnostoma sp. 2 14 0 Temnostoma alternans Lw. 0 4 0 Toxomerus germinatus (Say) 27 93 0 Tropidia quadrata (S< ay) 22 37 0 Xylota sp. 0 2 0 Xylota segnis (L. ) 12 40 0 Xylota subfasciata Lw. 0 4 0 Unidentified sp. 5 0 0 Unidentified 34,286 59 ,843 5,018 Larvae 177 9 134 Hymen optera Braconidae Braconinae Bracon sp. 18 8 0 Helconinae Helcon sp. 23 1 0 Euphorinae Dinocampus cocci nell ae 3 2 0 Meteorus sp. 6 8 0 Peristenus sp. 17 6 0 Syntretus sp. 23 8 0 Macrocentrinae Macrocentrus sp. 33 0 0 21 Order Family Total catch Species 1979 1980 1981 Microgastrinae Apanteles sp. 23 1 0 Microplitis sp. 71 14 0 Opiinae Opi us sp. 1 0 109 Sigalphinae Chelonus sp. 25 0 0 Ichneumonidae Anomaloninae Therion sp. 1 0 78 Trichionotus sp. (Agrypon sp.) 2 0 0 Banchinae Lissonota acrobasidis Ashmead 13 2 0 Banchus flavescens Cresson 1 1 0 Lissonota laevigata Cresson 8 0 0 Campopleginae Enytus sp. 6 48 0 Campoplegini sp. 0 14 4 Diadegma sp. 13 0 0 Cryptinae Gel is sp. 9 197 0 Medophron sp. 43 642 0 Atractodes sp. 99 106 0 Cryptus albitarsis (Cress.) 1 0 0 Dichrogaster crassa (Prov.) 3 3 0 Endasys sp. 76 110 0 Henri teles sp. 84 203 0 Mastrus sp. 2 27 0 22 Order Total catch Family Species 1979 1980 1981 Phygadeuon sp. Polytribax crotchii (Cress.) Pycnocryptus director (Thbg.) Trychosis sp. Diplazontinae Diplazon laetatorius Fab. Homotropus sp. Ichneumoninae Phaeogenes cacoeciae Vier. Phaeogenes hariolus (Cresson) Vulgichneumon brevicinctor (Say) Exephanes terminal is (Prov.) Centeterus sp. Cratichneumon pilosulus (Prov.) Cratichneumon sp. Diphyus sp. Ichneumon sp. Ichneumon versabilis Cress. Ischnus inquisitorius atri coll aris (Walsh) 1 Labeninae Eclytus sp. Mesocharinae Mesochorus sp. Ophioninae Enicospilus sp. Pimplinae Pimpla tenuicornis (Cress.) Scambus (Scambus) canadensis Walley 12 225 0 2 0 0 33 0 0 0 1 0 5 0 0 0 5 0 29 16 0 0 23 0 3 0 0 34 0 0 0 1 0 1 0 0 0 1 0 4 0 0 0 1 0 2 0 0 )1 1 0 9 8 0 4 0 0 8 19 0 7 0 0 5 0 0 23 Order Family Total catch Species 1979 1980 1981 Xoridinae Odontocolon sp. 1 0 0 Orthocentrinae Stenomacrus sp. 0 1 0 Unidentified spp. 51 6 0 Chalcidoidea Encyrtidae Cocci den cytrus sp. 27 14 0 Copidosoma sp. 554 7 0 Dis codes sp. 4 2 0 Encarsia sp. 9 0 0 Encyrtus sp. 4 0 0 Microterys sp. 42 18 0 Eulophidae Chrysocharis malaenis (Walker) 22 2 0 Chrysonotomyia formosa (Westwood) 9 0 0 Cirrospilus sp. 10 47 0 Omphale sp. 55 23 0 Pnigalio sp. 2 0 0 Tetrastichus sp. 154 13 0 Eurytomidae Eudecatoma sp. 9 0 0 Eurytoma sp. 71 34 0 Harmolita sp. 359 186 0 Miscogasteridae Cyrtogaster sp. 0 2 0 Mymaridae Gonatocerus sp. 90 19 0 24 Order Family Species Total catch 1979 1980 1981 Mymar sp. Polynema sp. Pteromalidae Asaphes vulgaris Walker Halticoptera sp. Homoporus sp. Gastracanthus sp. Gastracancistrus sp. Lamprotatus sp. Sceptrothelys sp. Seladerma sp. Spalangia sp. Torymidae Megastigma sp. Torymus sp. Trichogrammatidae Aphelinoidea sp. Cynipoidea Al loxystidae Al loxysta sp. Eucoilidae Kleidotoma sp. Pseudoeucoila sp. Trybliographa sp. Figitidae Xyalophora sp. Cynipidae ?Saphonecrus sp. 2 0 0 380 29 0 134 3 0 100 7 0 8 4 0 21 4 0 2 1 4 75 12 0 11 8 0 28 13 0 24 3 0 3 8 0 36 8 0 84 114 14 14 0 84 2 0 6 1 0 3 5 0 10 2 0 25 Order Family Total catch Species 1979 1980 1981 Proctotrupoidea Diapriidae Aneurhynchus sp. 29 1 0 Basalys sp. 17 0 0 Belyta sp. 36 308 0 Idiotypa sp. 1 0 0 Mi ota sp. 399 1,239 0 Polypeza sp. 16 3 0 Psilus sp. 11 1 0 Spilomicrus sp. 2 2 0 Trichopria sp. 2,151 463 0 Zygota sp. 17 0 0 Platygastridae Inostemma sp. 31 1 0 Leptacis sp. 52 5 0 Metaclisis sp. 31 6 0 Platygaster sp. 87 101 0 Synopeas sp. 206 102 0 Proctotrupidae Codrus sp. 16 3 0 Scelionidae Asolcus sp. 55 0 0 Telenomus sp. 213 359 0 Telenomus podisi Ashmead 122 125 0 Trimorus sp. 196 23 0 Unidentified 165 2 0 Sundholmiella sp. 8 15 0 26 Order Family Species Total catch 1979 1980 1981 Bethyloidea Bethylidae Pseudisobrachium sp. Chrysididae Omalus sp. Dryinidae Anteon sp. Aphelopus so. Unidentified spp. Ceraphronoidea Ceraphronidae Aphanogmus sp. Ceraphron sp. Megaspilidae Dendrocerus sp. Dendrocerus niger (How.) Sphecoidea Sphecidae Pemphredon sp. Craproninae Lesticas sp. Pemphredoninae Mi mesa sp. Passaloecus sp. T ry po xy 1 on inae Trypoxylon sp. Crab ron inae Ectemnius sp. 4 0 0 37 1 0 36 5 0 2 13 0 14 20 0 265 2 0 382 90 0 872 38 0 1 1 0 36 0 14 3 0 9 13 0 16 10 0 4 1 0 2 5 0 27 Order Total catch Family Species 1979 1980 1981 Cross ocerus sp. 41 6 0 Gorytinae Ochleroptera bipunctata (Say) 12 7 0 Nyssoninae Nysson sp. 10 0 0 Unidentified - - 1,271 Apoidea Halictidae Lasioglossum athabascense Sand. 19 - - Halictinae Dial ictus sp. 123 - - Halictus sp. 51 - - Hal ictus con f us us Smith 248 - - Sphecodes sp. 1 - - Andreni dae Panurginae Perdita octomaculata (Say) 1 - - Andreni nae Andrena sp. 24 - - Aphidae Apinae Apis mellifera L. 11 - - Bomb i nae Bombus sp. 15 - - Collectidae Hylaeinae Hylaeus sp. 23 0 - Unidentified 451 1,709 - 28 Order Total catch Family Species 1979 1980 1981 Formicoidea Formicidae 2,227 2,507 3,147 Vespoidea 12 Eumenidae E umen i n ae Odynerus sp. 1 1 - Vespidae Vespinae Vespula (Dolichovespula) arenaria F. 23 23 - Vespula (V.) consobrina (Sauss.) 0 7 - Vespula (Dolichovespula) maculata (L.) 0 2 - Unidentified 49 46 - Bethyl oi dea Chrysididae Chrysididinae Chrysis sp. 1 2 - Unidentified sp. 0 2 - Pompiloidea Pompilidae Pepsi nae Priocnemis germana (Cresson) 1 0 - Tenth redinidae 355 2,653 169 Scolioidea 0 0 10 Number of samples in which they were present. 2 No data. 29 SEASONAL ABUNDANCE OF ARTHROPODS The following table contains data on the seasonal abundance of selected groups of potato arthropods for 1979, 1980 and 1981 and for each sampling method. Years when groups were present in less than five sampling dates have not been included. Figures refer to the average number of arthropods per pitfall trap, yellow water pan, 50 sweeps or one ground cloth in positive samples. The number of positive samples (number of fields with at least one arthropod) is given in brackets. Sampling started around the first of June and ended at topkill or in September. 30 Arachnida Pitfall Yel low pan Day 1979 1980 1981 1979 1980 1981 150 0 (0) 0 (0) - 0 (0) 0 (0) - 154 0 (0) 5.74(7) 6.8 (5) 0 (0) 2.67(24) 0.75(2) 157 0 (0) 0 (0) - 0.5 (1) 1.20(18) - 161 0.70(2) 3.23(9) 6.13(13) 1.47(17) 1.42(24) 2.5 (1) 164 1.34(5) 3.17(4) - 0.92(6) 1.19(16) - 168 1.61(8) 4.24(9) 4.71(14) 1.04(12) 1.24(21) 1.0 (1) 171 1.93(4) 2.44(5) - 1.0 (2) 1.16(19) - 175 3.04(13) 6.87(6) 5.14(12) 0.75(4) 1.48(20) 0.75(6) 178 1.45(9) 3.62(6) - 0.50(1) 1.52(26) - 182 2.44(9) 0 (0) 3.19(14) 1.5 (3) 0.90(5) 0.75(2) 185 2.0 (14) 3.55(14) - 0.70(5) 1.0 (9) - 189 1.3 (15) 5.02(10) 3.89(15) 0.64(7) 1.4 (5) 0.75(2) 192 1.38(8) 2.44(13) - 0.5 (2) 0.71(7) - 196 1.44(9) 1.62(9) 3.35(13) 0 (0) 0.59(11) 0.50(1) 199 3.62(12) 1.32(8) - 1.25(2) 0.75(8) - 203 1.58(16) 3.83(9) 2.44(13) 0.57(7) 0.69(8) 0 (0) 206 2.46(8) 1.23(9) - 0 (0) 0.57(7) - 210 2.24(16) 4.26(11) 1.66(9) 0.67(3) 0.50(2) 0 (0) 213 2.15(6) 1.36(9) - 1.0 (1) 0.75(2) - 217 1.41(12) 2.2 (2) 1.24(6) 0.75(2) 0 (0) 0 (0) 220 8.66(8) 1.89(16) - 0.5 (3) 0.58(6) - 224 0.48(5) 3.18(9) 1.65(2) 0 (0) 0.50(3) 0.50(1) 227 1.08(7) 0.72(9) - 0.5 (2) 0.50(2) - 231 0.69(9) 4.07(9) 1.15(4) 1.0 (3) 0.50(2) 0 (0) 234 1.85(8) 0.68(9) - 1.0 (3) 0 (0) - 238 1.5 (8) 3.53(7) 0.5 (2) 0.75(4) 0 (0) - 241 4.39(6) 0.69(6) - 1.17(3) 1.00(1) - 245 0.5 (1) 0.50(1) 1.2 (2) 0 (0) - - 248 4.65(6) - - 0.5 (1) - - 252 6.09(2) - - 0 (0) - - 255 3.47(3) - - 0 (0) - - 259 0 (0) - - 0.5 (1) - - 31 Arachnida Sweepnet Ground cloth Day 1979 1980 1979 1980 150 154 157 .161 164 168 171 175 178 182 185 189 192 196 199 203 206 210 213 217 220 224 227 231 234 238 241 245 248 252 255 259 0.25(1) 0 (0) 0.29(5) 0 (0 0.56(4) 0.37(6) 0.33(3 0.28(8) 0.57(7) 0.44(4 0.42(6) 0.25(3) 0.25(3 0.72(9) 0.38(4) 0.63(2 0.45(13) 0.32(8) 0.53(1 0.25(4) 0.25(4) 0.44(4 0.75(4) 0.31(4) 0.33(3 0.63(3) 0 (0) 0.75(1 0.25(1) 0 (0) 0.25(1 0 (0 0 (0) 0.50(1) 0.50(2) 0.33(6) 0.25(1) 0.33(3) ) 0.25(4) 0.25(2) 0.25(1) 0 (0) 32 Aphididae Pitfall Yel low pan Day 1979 1980 1981 1979 1980 1981 150 0 (0) 0 (0) - 22.00(3) 0 - 154 0 (0) .10(1) 0 (0) 0 (0) 1.13(4) 0 (0) 157 0 (0) 0 (0) - 0 (0) 1.36(7) - 161 0 (0) 0 (0) 0 (0) 5.83(24) 3.82(19) .75(2) 164 2.27(3) .18(7) - 2.80(10) 1.83(27) - 168 0 (0) .20(3) 0 (0) 6.12(25) 6.62(30) 4.25(2) 171 .80(2) 0 (0) - 26.00(4) 15.10(43) - 175 .85(2) .18(4) .20(4) 4.53(28) 22.67(36) 1.42(6) 178 .60(6) 1.55(4) - 5.57(7) 51.00(45) - 182 .57(3) 0 (0) .27(3) 6.59(22) 18.32(11) 4.42(6) 185 .59(9) .33(4) - 50.81(21) 27.27(28) - 189 .46(9) .64(5) .68(7) 5.46(34) 16.75(39) 10.75(6) 192 3.78(7) .32(9) - 33.50(4) 16.04(50) - 196 .48(6) .10(2) 3.34(7) 21.96(33) 16.27(31) .50(1) 199 .92(9) .10(1) - 21.90(5) 40.34(37) - 203 1.10(9) .50(4] 6.81(10) 22.49(37) 40.52(35) 40.00(4) 206 2.53(8) .94(5] - 20.50(3) 53.32(39) - 210 1.10(15) 2.7 (6] 2.0 (2) 34.67(36) 59.19(34) 11.17(6) 213 1.58(6) 4.3 (6] - 42.00(3) 35.05(31) - 217 2.60(10) 2.4 o: 1 0 (0) 35.73(32) 14.00(1) 17.75(2) 220 1.39(11) 1.57(1( )) 29.01(8) 41.58(48) - 224 .34(5) 2.0 (2] 1 7.6 (1) 19.40(21) 27.98(63) 5.67(3) 227 9.91(4) 2.05(2' i 13.68(11) 19.22(45) - 231 2.10(8) 1.80(3' > 3.6 (1) 24.45(22) 19.15(37) 0 (0) 234 .84(7) 0 (0 I 9.11(18) 8.89(35) - 238 10.33(4) 0 (0 ) 0 (0) 18.57(27) 5.27(28) 0 (0) 241 .20(1) 0 (0 1 10.25(8) 0 (0) - 245 0 (0) 0 (0 ) 0 (0) 0 (0) • - - 248 .6 (2) - - 7.88(4) - - 252 0 (0) - - 4.00(3) - - 255 •20(1) - - 6.33(3) - - 259 0 (0) - - 1.00(2) - - 33 Aphididae Sweepnet Ground cloth Day 1979 1980 1979 1980 150 - 154 - 157 - 161 - - 164 - - - - 168 - 171 - 175 - 178 - 1.00(2) - 0 (0) 182 - - 185 1.00(1) .30(5) 2.75(1) 1.13(2) 189 - 192 22.88(4) 1.06(4) 24.78(8) 4.68(7) 196 - 199 4.61(17) 11.03(16) 21.69(17) 9.54(13) 203 - 206 9.27(19) 21.46(6) 4.99(16) 77.83(3) 210 - - - 213 8.12(22) 13.90(15) 36.38(12) 23.58(17) 217 - 220 14.25(34) 11.00(7) 22.15(37) 40.13(19) 224 - 227 .95(5) 6.03(8) 2.79(6) 3.50(12) 231 - 234 3.86(9) 8.97(10) 11.53(8) .50(7) 238 - 241 1.25(2) 0 (0) .63(3) 160.00(1) 245 - 248 1.67(3) - 1.67(3) 252 - 255 6.00(1) - 2.00(1) 259 - 34 Cercopidae Pitfall Yellow pans Sweepnet Day 1979 1980 1979 1980 1979 1980 150 0 (0) 0 (0) 6.50(1) 0 (0) - - 154 0 (0) .15(2) 0 (0) 1.63(12) - - 157 o (o) 0 (0) 0 (0) .90(5) - - 161 0- (0) .13(3) 1.75(2) 1.56(8) - - 164 .25(2) 0 (0) .67(3) 1.71(7) - - 168 .17(3) .60(1) 1.13(15) .63(4) - - 171 0 (0) 0 (0) 2.00(2) .75(2) - - 175 .35(2) 0 (0) .96(13) .50(1) - - 178 0 (0) o (o; 2.50(3) .75(4) - 0 (0) 182 0 (0) o (o; .79(7) 0 (0) - - 185 • 1 (1) o (o; 1 .88(8) 0 (0) 0 (0) 0 (0) 189 0 (0) 0 (0' 1 .73(13) 0 (0) - - 192 0 (0) o (o; 1 .50(1) 0 (0) .25(2) 0 (0) 196 0 (0) o (o; 1 1.89(14) 0 (0) - - 199 o (o) .10(1 I .75(2) 1.13(4) 6.60(13) 1.00(1) 203 .1 (1) 0 (0' 1 2.03(37) 1.09(18) - - 206 .15(2) .10(1 I 1.00(1) 1.28(16) 1.13(14) 0 (0) 210 0 (0) 0 (0 1 2.10(21) 4.32(28) - - 213 .1 (2) .45(2 ) 1.0 (2) 2.00(39) .63(15) 1.20(14) 217 0 (0) 1.8 (1 ) 1.66(19) 1.00(1) - - 220 0 (0) .36(5 ) 2.25(4) 3.29(40) 1.01(23) 1.06(12) 224 0 (0) 0 (0 ) 1.40(5) 2.13(42) - - 227 0 (0) 1.10(2 ) .83(3) 1.05(21) 0 (0) 2.39(11) 231 0 (0) .94(5 ) .86(11) 1.96(10) - - 234 0 (0) .93(3 ) 1.88(4) 1.09(16) .25(1) 1.05(10) 238 •10(2) 0 (0 ) .95(11) 1.75(16) - - 241 .08(2) .20(1 ) 2.0 (2) 1.40(15) .75(1) 1.63(2) 245 0 (0) 0 (0 ) 0 (0) - - - 248 0 (0) - 1.50(2) - .50(2) - 252 0 (0) - .50(1) - - - 255 0 (0) - .50(1) - 0 (0) - 259 0 (0) - 0 (0) - - - 35 Pitfall Cicadel lidae Yellow pan Sweepnet Day 1979 1980 1979 1980 1979 1980 150 0 (0) 0 (0) 5.00(1) 0 (0) - - 154 0 (0) .10(2) 0 (0) 1.82(19) - - 157 0 (0) 0 (0) 0 (0) 2.72(9) - - 161 .20(1) .10(2) 1.09(11) 1.22(21) - - 164 .27(3) .10(1] 0 (0) 2.17(3) - - 168 1.63(4) 0 (0] 2.47(15) .50(3) - - 171 .15(2) .20(1] 2.67(3) 1.87(8) - - 175 .53(10) .60(1] 2.48(19) 1.47(16) - - 178 .38(6) .6 (2] 1.70(5) 2.58(31) - .88(2) 182 .55(10) 0 (o1 1 1.73(11) .50(1) - - 185 .53(8) .33(3; 1 1.85(17) 1.29(22) .25(1) 0 (0) 189 .81(10) .55(6! 1 1.72(23) 1.82(25) - - 192 .53(6) .20(4' I 4.5 (3) 2.47(30) .42(3) 1.55(5) 196 .36(7) .28(4 > 1.97(15) 1.38(13) - - 199 .87(4) .57(6 ) 2.00(2) 2.98(23) .40(10) .44(8) 203 .62(6) 1.20(6 ) 2.52(21) 1.73(28) - - 206 .35(6) .36(8 ) 1.75(2) 1.73(21) .53(7) 0 (0) 210 .52(10) 6.87(3 ) 2.64(11) 1.82(22) - - 213 0 (0) .42(6 ) .50(1) 2.27(19) .76(8) .95(9) 217 1.04(7) 1.00(1 ) 1.18(20) .50(1) - - 220 .40(6) 1.18(8 ) 3.75(4) 1.84(28) 1.26(23) .61(9) 224 .25(2) 1 .88(5 ) 2.31(8) 1.09(33) - - 227 .15(3) .46(5 ) 1.50(1) 1.05(21) 2.50(5) .38(4) 231 1.06(7) .40(2 ) 3.04(12) 1.07(14) - - 234 .28(8) .87(3 ) 1.07(15) 2.40(29) .65(5) .35(8) 238 .20(3) .91(7 ) 3.58(20) 1.86(18) - - 241 .18(2) .57(9 ) 3.25(6) 1.15(13) 2.09(3) 2.25(1) 245 0 (0) .30(1 ) 0 (0) - - - 248 0 (0) - 1.13(4) - .85(5) - 252 0 (0) - .50(1) - - - 255 .20(1) - 2.25(2) - 0 (0) - 259 0 (0) - 0 (0) - - - 36 Cicadellidae Ground cloth Membracidae Yel low pan Mi ri dae Pitfall Day 1979 1980 1979 1980 1979 1980 150 - - .50(1) 0 (0) 0 (0) 0 (0) 154 - - 0 (0) .79(7) 0 (0) 0 (0) 157 - - 0 (0) 1.00(1) 0 (0) 0 (0) 161 - - .50(1) .50(4) 0 (0) 0 (0) 164 - - 0 (0) 1.00(1) 0 (0) 0 (0) 168 - - .50(1) .50(1) 0 (0) 0 (0) 171 - - 0 (0) .50(1) .20(1) 0 (0) 175 - - 0 (0) .50(1) 0 (0) 0 (0) 178 - 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 182 - - 0 (0) 0 (0) .10(2) 0 (0) 185 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 0 (0) 189 - - 0 (0) 0 (0) .10(1) 0 (0) 192 0 (0) .25(1) o (o; 0 (0) 0 (0) 0 (0) 196 - - o (o; 0 (0) .10(1) 0 (0) 199 .50(2) .38(2) o (o; 0 (0) .20(1) .13(3) 203 - - .5o(i ; 0 (0) .10(3) 1.2 (2) 206 .25(1) 0 (0) o (o; 1 0 (0) .40(2) .20(1) 210 - - 1.17(6' ) 1.00(3) .13(3) 0 (0) 213 .25(2) .25(2) 0 (0 I .50(1) .15(2) .15(2) 217 - - .61(9 ) 0 (0) .20(1) 0 (0) 220 .50(8) .25(1) .90(5 ) -92(6) 0 (0) 0 (0) 224 - - .67(6 ) .54(1: 5) .10(1) 0 (0) 227 .25(2) 0 (0) .67(3 ) .75(8) 0 (0) 0 (0) 231 - - 1.00(1 ) .89(9] .13(3) .40(1) 234 .94(4) .38(3) 1.08(6 ) 1.21(V 0 o (o) 0 (0) 238 - - 1.07(7 ) 1.00(1' \) 0 (0) 0 (0) 241 .25(1) 0 (0) 1.50(3 ) 1.72(9] 1 0 (0) 0 (0) 245 - - 0 (0 ) 0 (0) 0 (0) 248 .50(2) - 1.00(2 ) 0 (0) - 252 - - 0 (0 ) 0 (0) - 255 0 (0) - .75(2 ) 0 (0) - 259 - - 0 (0 ) 0 (0) - 37 Mi ri dae Yellou i pan Sweepnet Ground cloth Day 1979 1980 1978 1980 1979 1980 150 2.00(1) 0 (0) - - 154 0 (0) 0 (0) - - 157 0 (0) 0 (0) - - 161 5,50(1) 0 (0) - - 164 0 (0) 0 (0) - - 168 0 (0) 0 (0) - - 171 0 (0) 0 (0) - - 175 .50(1) 0 (0) - - 178 0 (0) 1.00(3) - 0 (0) 0 (0) 182 .67(3) 0 (0) - - - 185 .50(3) .50(1) .50(1) 0 (0) 0 (0) 0 (0) 189 .81(8) .50(2] - - - - 192 .75(2) 0 (0) .57(7) .88(2) .75(2) .25(1) 196 .97(17) .50(1) - - - - 199 0 (0) .71(7] 1.42(23) 1.31(12) 1.00(14) .25(1) 203 1.10(14) .40(5] - - - - 206 .50(2) .92(6) 1.02(21) .25(2) .30(5) 0 (0) 210 .73(11) 1.00(5] - - - - 213 .50(1) .67(3] 1.25(20) 1.25(3) .45(5) .25(1) 217 .78(9) o (o; 1 - - - 220 1.00(3) .50(5] 1 2.65(29) 1.15(5) .88(21) .50(1) 224 1.50(3) 2.50(1] 1 - - - 227 1.25(2) .50(1] .34(3) .75(6) .25(2) .25(1) 231 .86(7) o (o; - - - - 234 .50(3) o (o; 1 1.25(1) .69(8) .70(5) .25(1) 238 .75(6) o (o; - - - - 241 .75(2) o (o; 1 1.42(5) 1.67(3) 0 (0) 0 (0) 245 0 (0) - - - - - 248 0 (0) - .70(5) - 1.25(2) •- 252 .50(2) - - - - - 255 .50(2) - 1.00(1) - .50(1) - 259 0 (0) - - - - - 38 Nabidae Pi tfall Yellow p 1980 an Swee pnet Day 1979 1980 1979 1980 150 0 (0) 0 (0) 0 (0) - - 154 0 (0) 0 (0) 0 (0) - - 157 0 (0) 0 (0) .50(2) - - 161 . 0 (0) o (o) .50(1) - - 164 0 (0) •10(1) .50(1) - - 168 •10(1) 0 (0) 0 (0) - - 171 .20(1) 0 (0) 0 (0) - - 175 0 (0) 0 (0) 0 (0) - - 178 0 (0) 0 (0) 0 (0) - 0 (0) 182 .20(1) 0 (0) 0 (0) - - 185 .15(2) 0 (0) 0 (0) 0 (0) 0 (0) 189 .13(3) 0 (0) .50(1) - - 192 .20(1) .10(1) 0 (0) 0 (0) .50(1) 196 .15(2) 0 (Oj 0 (0) - - 199 .13(2) 0 (0) .50(2) .25(2) .50(1) 203 .15(2) 0 (0) 1.00(1) - - 206 0 (0) .20(2) 0 (0) 0 (0) .25(1) 210 .08(2) 0 (0) 0 (0) - - 213 0 (0) o (o; .50(1) .25(2) .25(5) 217 o (o; 0 (0) o (o; - - 220 .10(1] .10(2] o (o; .34(3) .42(3) 224 o (o; o (o; > o (o; - - 227 o (o; o (o; 1 o (0. ! 0 (0) .33(3) 231 o (o; > o (o; i o (o; - - 234 o (o; 1 0 (0 ! 0 (0' > o (o) .25(3) 238 0 (0' 1 0 (0 > o (0 i - 241 0 (0 1 .20(1 ) 0 (0 > .63(2) •25(1) 245 0 (0 1 0 (0 1 - 248 0 (0 1 - .25(1) 252 0 (0 1 - - 255 0 (0 1 - 0 (0) 259 0 (0 1 - - 39 Pentatomidae Pitfall 1980 Yell ow pan Sweepnet 1979 Ground cloth Day 1979 1980 1979 150 0 (0) 0 (0) 0 (0) - - 154 0 (0) 0 (0) 0 (0) - - 157 0 (0) 0 (0) 0 (0) - - 161 • 0 (0) 0 (0) .50(2) - - 164 0 (0) 0 (0) 0 (0) - - 168 0 (0) .63(4) 1.00(3) - - 171 0 (0) 0 (0) .50(1) - - 175 0 (0) .50(1) .83(3) - - 178 0 (0) 0 (0) 1.25(4) - - 182 0 (0) 0 (0) 0 (0) - - 185 .20(1) o (i; 1.00(2) 0 (0) .50(1) 189 2.43(3) .50(1) .50(1) - - 192 .85(2) o (o; 1 2.00(1) .67(3) .50(2) 196 0 (0) .50(1 : 1 1.50(1) - - 199 0 (0) o (o; 1 1.25(2) .75(1) .25(1) 203 .10(1) 0 (0 > .67(3) - - 206 .30(2) 0 (0 ) .50(1) .38(2) .25(2) 210 0 (0) 0 (0 ) 2.00(3] - - 213 0 (0) 0 (0 ) 0 (0) .25(3) .33(3) 217 0 (0) 0 (0 ) 0 (0] - - 220 .10(1) 0 (0 ) .75(2] 3.82(14) 1.46(16) 224 o (o; 0 (0 ) .50(1] - - 227 o (o; 0 (0 ) o (o; .75(4) .25(2) 231 .40(1] 0 (0 ) 0 (0] - - 234 o (o; 0 (0 ) o (o; 1 2.38(4) 2.21(6) 238 0 (0 > 0 (0 ) o (o; 1 - 241 0 (0 1 0 (0 ) o (o; 1 3.75(3) .50(2) 245 o (o; 1 0 (0 ) - - 248 - .50(1 ) .70(5) 1.00(4) 252 - 0 (0 ) - - 255 - 0 (0 ) .75(2) 1.50(1) 259 ■ - 0 (0 ) - - 40 Psyllidae P.yrrhocoridae Pitfall 1979 Yell ow pan Sweepnet 1979 Yellow pan Day 1979 1980 1979 150 0 (0) 1.67(3) 0 (0) - 0 (0) 154 0 (0) 0 (0) 3.20(22) - 0 (0) 157 0 (0) 0 (0) 7.97(27) - 0 (0) 161 ♦10(1) 5.78(36) 14.86(26) - 0 (0) 164 .10(1) 1.83(12) 1.85(21) - 0 (0) 168 2.7 (1) 7.38(21) 2.33(20) - 1.50(1) 171 0 (0) 2.88(4) 6.67(31) - 0 (0) 175 8.5 (1) 3.29(23) 7.94(31) - .50(1) 178 20.05(2) 2.25(2) 3.26(30) - .50(1) 182 1.0 (1) 1.14(14) 1.30(5) - .75(2) 185 •10(1) 1.31(13) 3.70(27) .50(1) 1.00(2) 189 0 (0) 1.13(16) 2.22(32) - .63(4) 192 0 (0) 1.50(2) 1.69(26) 0 (0) 0 (0) 196 .50(1) .88(8) 1.75(8) - 0 (0) 199 0 (0) 3.50(1) 163.72(9) .25(4) 0 (0) 203 .10(2) .96(14) .80(17) - 0 (0) 206 .15(2) 1.75(2) .67(3) •25(2) .50(1) 210 .06(1) 1.17(6) 0 (0) - .50(1) 213 0 (0) 1.00(1) .83(3) .50(1) 0 (0) 217 .90(1 : 1.00(6) 0 (0) - .50(2) 220 .20(1] .83(3) .75(2) .50(1) 0 (0) 224 .20(1] •75(4) 0 (0) - 0 (0) 227 o (o; 1 .50(2) .75(2) •25(2) 0 (0) 231 0 (0 1 .81(8) 0 (0) - .50(1) 234 o (o1 1 1.50(5) 0 (0) .25(1) .50(1) 238 0 (0 > -90(5) 0 (0) - .50(3) 241 .06(1 ) .50(3) 0 (0) 0 (0) 0 (0) 245 0 (0 ) 0 (0) - - 0 (0) 248 0 (0 ) 1.50(1) - 0 (0) 0 (0) 252 0 (0 ) 0 (0) - - 0 (0) 255 0 (0 ) 1.00(1) - 0 (0) 0 (0) 259 0 (0 ) .50(1) - - 0 (0) 41 Carabidae Pitfall Yellow pan Day 1979 1980 1981 1979 1980 1981 150 0 (0) 0 (0) - 3.00(1) 0 (0) - 154 0 (0) 5.46(7) 7.0(4) 0 (0) 2.84(19) 0 (0) 157 0 (0) 0 (0) - 0 (0) 10.85(7) - 161 2*40(2) 6.51(8) 8.65(13) 1.78(20) 1.97(15) 1.25(2) 164 1.41(10) 4.72(5) - 1.86(7) 1.57(8) - 168 4.23(8) 5.69(8) 3.31(17) 1.73(15) .78(9) .50(1) 171 2.12(6) 2.66(5) - 2.5 (4) 1.77(11) - 175 3.21(16) 8.6 (6) 8.04(16) .63(4) 1.25(20) 0.87(1) 178 1.65(10) 5.2 (6) - .50(1) 1.37(23) - 182 4.69(11) 0 (0) 14.43(15) .50(2) .50(1) 1.2 (5) 185 3.31(16) 9.03(15) - .50(3) 2.75(10) - 189 3.64(17) 7.0 (10) 8.04(17) .50(2) 1.00(8) 0.83(3) 192 3.84(8) 7.4 (11) - 1.50(1) .92(13) - 196 4.95(13) 6.21(11) 5.05(17) .50(3) .75(4) 0 (0) 199 4.11(12) 14.1 (9) - .50(1) .81(8) - 203 4.53(18) 13.05(13) 6.35(14) .50(3) .38(4) 1.25(2) 206 1.88(8) 21.3 (11) - 0 (0) .67(9) - 210 5.18(20) 13.15(11) 4.72(13) .75(2) .88(4) 0.5 (2) 213 3.16(7) 8.67(10) - 0 (0) .60(5) - 217 4.99(15) 5.85(2) 2.96(8) .50(1) 0 (0) 0 (0) 220 2.72(12) 11.95(20) - .50(2) 1.08(6) - 224 1.66(5) 14.94(11) 3.86(5) 0 (0) .72(9) 0 (0) 227 2.22(9) 9.36(13) - 0 (0) 1.33(4) - 231 2.15(13) 13.93(12) 2.46(8) .50(1) .75(2) 0 (0) 234 2.33(11) 11.66(10) - .50(2) 1.45(10) - 238 2.32(11) 8.67(9) .52(6) .83(3) .94(8) 0 (0) 241 1.15(6) 14.69(10) - .50(2) .69(8) - 245 .40(1) 4.1 (1) .35(4) 0 (0) - - 248 1.06(7) - - 0 (0) - - 252 .27(4) - - 0 (0) - - 255 .35(2) - - 0 (0) - - 259 0 (0) - - 0 (0) - - 42 Cocci nel 1 idae Pitfall Yellow pan Day 1979 1980 1981 1979 1980 1981 150 0 (0) 0 (0) - 0 (0) 0 (0) - 154 0 (0) 0.3 (1) 0.2 (1) 0 (0) 1.61(19) 0 (0) 157 0 (0) 0 (0) - 0 (0) 1.2 (5) - 161 .0.1 (1) 0.1 (2) 0.13(3) .67(3) 1.18(11) .50(1) 164 0.43(3) 0 (0) - .50(2) 1.23(11) - 168 0.2 (1) 0.1 (1) 0.2 (4) .56(9) .88(8) 0 (0) 171 0.1 (1) 0.4 (1) - .50(1) .84(13) - 175 0 (0) 0.1 (2) .30(3) .50(1) .58(6) 0 (0) 178 2.0 (2) 1.15(2) - 83.83(3) .95(18) - 182 0.35(2) 0 (0) 2.7 (1) .50(1) 1.00(1) .75(2) 185 0.3 (4) 0.2 (3) - .50(2) .80(5) - 189 0.37(3) 0.2 (3) .17(3) .50(3) .63(4) .83(3) 192 0.27(4] 0.83(4) - • 75(2) .63(4) - 196 o (o; 0.2 (3) .15(2) 1.00(1] .50(2) 1.00(3) 199 0.23(5) .15(2) - .50(2) .81(13) - 203 0.2 (1) 1 .97(3) .20(1) .50(1] 1.00(9) 0 (0) 206 0.22(6 1 .30(2) - 1.50(2] 1.57(8) - 210 0.1 (1 ) .37(3] •20(1) 0 (0] 1 1.00(4) .75(2) 213 0.61(6 ) .20(4] - .50(1' 1 .78(9) - 217 0.35(2 ) o (o; 1 0 (0) .50(1 ) 0 (0) 0.5 (1) 220 0.53(8 ) .35(4! - .61(5 ) 2.42(12) - 224 0.15(2 ) .15(2: 1 0 (0) .63(4 ) .86(14) 0 (0) 227 0.45(5 ) .20(4 1 .63(4 ) .50(4) - 231 1.0 (3 ) 3.4 (1 ) 0 (0) 0 (0 ) .67(6) 0 (0) 234 0.20(4 ) 0 (0 1 1.00(1 ) .77(13) - 238 0.15(2 ) .10(1 ) 0 (0) .70(5 ) .91(5) 0 (0) 241 0.29(4 ) .10(2 ) .67(3 ) .75(2) - 245 0 (0 ) 0 (0 ) 0 (0) 0 (0 ) - 248 0 (0 ) - 1.00(1 ) - 252 0 (0 ) - 0 (0 ) - 255 0.2 (1 ) - 0 (0 ) - 259 0 (0 ) - 0 (0 ) - 43 Cocci nel lii Jae Sweepnet Ground cloth Day 1979 1980 1979 1980 150 - - - - 154 - - - - 157 - - - - 161 - - - - 164 - - - - 168 - - - - 171 - - - - 175 - - - - 178 - 0.25(2) - 0 (0) 182 - - - - 185 0 (0) .63(2) 0 (0) .75(1) 189 - - - - 192 0 (0) .33(3) 0 (0) 0 (0) 196 - - - - 199 .35(5) .50(2) .38(2) .25(1) 203 - - - - 206 0 (0) .25(1) .25(1) 1.75(1) 210 - - - - 213 .50(2) 1.65(5) .25(3) .30(5) 217 - - - - 220 .75(12) .83(15) .61(7) 1.35(5) 224 - - - - 227 .34(3) 1.72(9) .25(1) 1.00(4) 231 - - - - 234 .25(1) 1.69(4) .50(3) .50(2) 238 - - - - 241 1.25(1) .50(3) 0 (0) .25(1) 245 - - - - 248 0.25(1) - 0 (0) - 252 - - - - 255 .38(2) - 0 (0) - 259 _ - - _ 44 Elateridae Pitfall Yell ow pan Day 1979 1980 1981 1979 1980 150 0 (0) 0 (0) - 0 (0) 0 (0) 154 0 (0) .88(4) .8 (1) 0 (0) .86(14) 157 0 (0) 0 (0) - 0 (0) .50(4) 161 4.8 (2) 1.48(5) 1.17(10) .50(1) .82(11) 164 .40(7) .80(1) - .75(2) .83(3) 168 .70(5) 4.7 (5) .71(10) 1.07(7) 1.36(7) 171 .98(4) .25(2) - .83(3) 2.92(6) 175 1.79(7) 3.22(6) .59(12) .50(1) 1.00(2) 178 .27(7) .20(4) - 1.00(1) 1.33(21) 182 1.18(4) 0 (0) •40(1) 0 (0) .50(1) 185 .57(5) .38(7) - .50(1) 1.67(3) 189 .49(8) .45(6) .30(2) .80(4) .50(1) 192 .05(2) .68(6) - 1.00(1) .83(3) 196 .78(4) .89(1) •20(1) 1.50(1) 0 (0) 199 .34(4; 1 .35(4) - .50(1) .67(3) 203 .09(3] 1 .43(4) .10(1) .50(1) .75(2) 206 .20(4' ) .40(1) - 1.00(1) .60(5) 210 0 (o1 1 .10(1] •20(1) .50(1) .50(2) 213 0 (0 ) .25(2] - 0 (0) .67(3) 217 0 (0 ) 0 (o; 0 (0) .50(1) 0 (0) 220 .20(1 ) .35(2] - 0 (0) .83(3) 224 0 (0 ) 0 (0 I 0 (0) 0 (0) 0 (0) 227 0 (0 ) 1.4 (T 1 .50(1) 0 (0) 231 .20(1 ) 0 (0 ) 0 (0) 0 (0) 0 (0) 234 .10(1 ) 0 (0 1 0 (0) 0 (0) 238 0 (0 ) 0 (0 ) 0 (0) 0 (0) 0 (0) 241 0 (0 ) .2 (1 ) 0 (0) 0 (0) 245 0 (0 ) 0 (0 ) 0 (0) 0 (0) - 248 0 (0 ) - 0 (0) - 252 0 (0 ) - 0 (0) - 255 0 (0 ) - 0 (0) - 259 0 (0 ) - 0 (0) - 45 Hal ti ci dae Pitfall Yel low pan Day 1979 1980 1981 1979 1980 1981 150 0 (0) 0 (0) - 45.75(2) 0 (0) - 154 0 (0) 1.40(5) .80(1) f 0 (0) 5.82(25) 4.50(2) 157 0 (0) 0 (0) - 41.00(1) 6.39(18) - 161 2.4 (2) .43(4) 2.20(5, 1 23.53(31) 11.73(28) 34.50(3) 164 • 3 (4) 2.10(4) - 10.04(12) 21.71(23) - 168 .2 (2) 2.75(2) .28(5' } 10.41(23) 3.08(26) 10.17(3) 171 .15(2) 1.72(5) - 33.38(4) 10.29(29) - 175 .18(4) .33(3) .96(1" 1) 2.25(30) 7.53(30) 8.57(7) 178 .3 (6) 4.62(5) - 9.09(6) 17.51(41) - 182 .18(4) 0 (0) 1 .78(5 ) 3.29(14) 1.50(4) 5.60(5) 185 •21(5) .68(5) - 17.83(12) 14.40(24) i 189 .42(3) .10(2) 1 .34(8 ) 4.53(17) 5.02(19' I 4.36(7) 192 •15(2) .67(1 1) - 2.12(4) 7.84(34, - 196 .10(1) 0 (0) 1 .37(8 ) 2.56(8) 5.63(15) 1 0 (0) 199 1.0 (3) .65(4' i 125.83(3) 5.5 (29) - 203 .08(2) 0 (0 I 1.01(7 ) 1.07(7) 10.44(26; 1 2.15(7) 206 .60(2) .68(4 i .50(2) 10.20(27) - 210 .54(5) .4 (1 I .93(7 ) 2.90(10) 4.61(19; 1 3.00(2) 213 .97(3) 1 .65(4 i 1.00(1) 5.27(14; - 217 0 (0) 0 (0 ) 1.3 (6 ) 3.06(18) 0 (0) 0 (0) 220 .87(4! 1 .20(4 i 108.50(5) 3.05(19 1 224 0 (0) 0 (0 ) 2.23(4 ) 1.63(4) 4.05(31 ) 7.00(1) 227 • 34(5) I .10(2 i 49.33(2) 4.75(28 i 231 2.83(5i 1 0 (0 ) 2.07(7 ) 17.54(12) 8.21(24 ) 0 (0) 234 .12(5" ! .30(1 I 8.54(13) 8.64(33 1 238 1.45(4 I 0 (0 ) .83(3 ) 5.42(18) 16.73(29 ) 0 (0) 241 .3 (1 1 .8 (3 I 5.07(7) 17.60(29 1 245 0 (0 I 0 (0 ) .80(6 ) 0 (0) - - 248 .48(7' i - 11.50(4) - - 252 .13(3] i - 1.50(2) - - 255 .40(1 i - 2.00(1) - - 259 0 (0 i - .50(1) - - 46 Haiti cidae Sweepnet Ground cloth Day 1_979 ]980 19.79 1980 150 - 154 - - 157 - .161 - - 164 - 168 - - 171 - 175 178 - 26.63(4) - 0 (0) 182 - 185 .25(1) 6.94(4) .50(1) 0 (0) 189 - 192 .50(1) 2.67(3) .25(1) 1.42(3) 196 - 199 1.00(5) 9.22(8) .38(6) 2.32(3) 203 - - - 206 .25(1) 2.00(2) 0 (0) 0 (0) 210 - - - 213 2.25(15) 3.39(12) 2.13(4) .75(5) 217 - 220 27.08(27) 1.55(10) 11.9 (24) 1.00(5) 224 - - - 227 66.05(5) 5.92(9) 31.19(4) .54(6) 231 - 234 27.63(6) 6.62(17) 4.67(6) 5.3 (5) 238 - 241 38.25(3) 10.71(6) 26.00(2) 0 (0) 245 - 248 10.11(7) - 7.12(4) 252 - - 255 3.38(2) - .50(1) 259 - 47 Staphylinidae Pitfall Yellow pan Day 1979 1980 1981 1979 1980 1981 150 0 (0) 0 (0) - •75(2) 0 (0) - 154 0 (0) 3.0 (7) 4.5 (4) 0 (0) 4.96(25) 0 (0 157 0 (0) 0 (0) - 1.50(1) 110.38(13) - 161 1.1 (3) 2.7 (8) 3.7 (13) 1.41(27) 2.00(22) .50(1 164 .87(8) 1.2 (4) - .94(6) 1.45(10) - 168 1.36(7) 1.7 (9) 2.2 (14) 2.04(23) 1.28(18) .67(3 171 1.44(5) .66(5) - 1.75(1) 1.11(14) - 175 1.82(14) 1.7 (6) 1.7 (15) .88(20) 1.41(23) 1.25(6 178 1.9 (8) 1.1 (6) - .60(5) 2.09(27) - 182 2.3 (11) 0 (0) 1.4 (13) .78(9) .50(1) .75(4 185 3.6 (15) 2.0 (10) - 1.58(12) .83(9) - 189 3.3 (16) 1.1 (8) 4.3 (16) 1.11(27) .77(13) .63(4 192 8.1 (9) .74(13) - 2.00(4) .75(12) - 196 7.6 (13) 2.3 (9) 4.3 (13) 1.26(17) .89(9) .50(1 199 1.9 (11) .95(8) - 1.50(4) 1.14(14) - 203 7.8 (17) 2.2 (13) 2.2 (15) 1.07(15) .86(7) .50(1 206 6.4 (8) 1.3 (8) - .50(1) 1.50(2) - 210 4.5 (19) 2.0 (9) 2.7 (12) 1.60(5) 1.17(3) 0 (0 213 1.6 (5) 1.5 (9) - .50(2) 1.00(5) - 217 5.8 (14) 0 (0) .78(6) .94(8) 0 (0) 0 (0 220 1.4 (10) 1.5 (18) - 1.75(2) 1.58(6) - 224 9.2 (4) .76(8) 1.1 (3) .60(5) 1.36(7) 0 (0 227 4.5 (7) 1.2 (7) - •92(6) • 50(1) - 231 2.1 (12) 1.6 (10) 1.6 (5) 1.44(9) 1.00(1) 0 (0 234 .79(10) .88(9) - 1.50(4) 1.00(1) - 238 2.8 (10) 1.0 (3) .4 (2) 1.50(15) .67(3) 0 (0 241 .65(3) 1.3 (8) - .80(5) 1.25(4) - 245 .3 (1) 0 (0) .4 (2) 1.33(3) - - 248 .86(4) - - 0 (0) - - 252 .28(2) - - 2.00(1) - - 255 .85(2) - - 1.17(3) - - 259 0 (0) - - 0 (0) - - 48 Pitfall Syrphidae Yel low pan Day 1979 1980 1979 1980 1981 150 0 ( 0) 0 (0) 6.0 (1) 0 (0) - 154 o ( 0) 0 (0) 0 (0) 0 (0) - 157 0 ( Oj 0 (0] 0 (0) 0.5 (1) - 161. 0 ( 0] 0 (0) 0.50(2) 0.5 (2) 0.5 (2) 164 0.1 ( 1) 0.2 (i; 0 (0) 0.5 (1) - 168 0 ( 0) 0 (0] 1.5 (2) 0.5 (3) 1.0 (1) 171 1.8 ( 1) o (o; 1.0 (1) 0 (0) - 175 0 ( 0) o (o; 0.5 (2) 0.67(3) 2.11(9) 178 0 I 0] o (o; ! 0 (0) 0.75(6) - 182 0 I [0] o (o; 0 (0) 0 (0) 1.43(7) 185 0 1 [0] o.i (2; 1 1.0 (1) 1.0 (1) - 189 0.2 [2] 0.1 (1; 1.79(7) 0.67(6) 2.81(8) 192 0.1 [1] 0.2 (1 1 1.5 (1) 1.4 (5) - 196 0 1 [o; I 0 (0 1 0.94(8) 0.88(4) 2.68(11) 199 0 [o 1 0.1 {2, ! 0.5 (1) 0.85(10) - 203 0 [o1 1 0 (0 I 1.21(14) 1.1 (6) 2.6 (5) 206 0 [0' 1 0.13(3 I 1.0 (1) 1.43(15) - 210 0.4 [2 1 0.20(V 1 1.42(12) 1.07(15) 2.71(7) 213 5.6 (1 ) 0.15(2 ) 0 (0) 1.42(25) - 217 0.1 , 1 ) 0.20(1 ) 1.86(22) 0 (0) 0 (0) 220 0.6 (1 ) 0.10(2 ) 1.88(4) 2.50(26) - 224 0 (o ) 0.0 (0 ) 1.04(12) 3.04(49) 3.25(3) 227 0 (o ) 0.13(4 ) 1.50(4) 2.79(26) - 231 0.1 (1 ) 0.20(1 ) 2.46(12) 2.57(28) 0 (0) 234 0.0 (o ) 0.15(2 ) 0.85(13) 2.95(31) - 238 5.0 (1 ) 0.10(1 ) 3.32(22) 2.98(18) 0.5 (2) 241 0 (0 ) 0.60(1 ) 2.21(7) 9.98(20) - 245 0 (0 ) 0.10(1 ) 0 (0) - - 248 0 (0 ) 2.0 (1) - - 252 0.1 (1 ) 0.67(3) - - 255 0 (0 ) 7.25(2) - - 259 0 (0 ) 0 (0) - - 49 Braconidae Pi tfall Yellow pan Day 1979 1980 1981 1979 1980 1981 150 0 (0) 0 (0) - 1.00(2) 0 (0) - 154 0 (0) . 15(2) 0 (0] 0 (0) .75(8) .50(1) 157 0 (0) 0 (0) - .50(1) .50(4) - 161 .0 (0) 0 (0) o (o; .91(16) • 75(2) 1.50(1) 164 •10(2) 0 (0) - .83(3) 0 (0) - 168 .30(1) 0 (0) 0 (0] 1.17(6) .50(1) 1.38(4) 171 2.40(1] 0 (0) - .83(3) .75(2) - 175 .25(2) 0 (0) .20(1] 1 .73(11) .50(1) 1.32(8) 178 •25(1) 0 (0) - .50(1) 0 (0) - 182 0 (0) 0 (0) .10(1] 1 .88(8) .50(1) 1.25(4) 185 .18(4) . 10(1) - .83(12) 1.00(6) - 189 .10(3) 0 (0) .20(1] ! .89(18) 1.00(2) 1.21(7) 192 .30(1) . 20(1) - .83(2) .75(2) - 196 1.13(3] 0 (0) .40(1 . ! .79(21) .50(1) .64(7) 199 .13(3] 0 (0) - .88(4) 2.25(2) - 203 .55(2] 0 (0) 0 (0' 1 1.25(22) .67(3) 1.00(3) 206 .40(2] 0 (0) - 1.25(2) .50(2) - 210 .20(3] 0 (0) 0 (0 > 1.40(15) .50(1) 1.50(5) 213 .45(2] . 40(1) - 3.00(1) 1.06(8) - 217 .40(1] 0 (0) 0 (0 1 1.94(24) 0 (0) .5 (1) 220 •13(2] . 10(3) - 2.59(6) .71(2) - 224 .20(1] 0 (0) 0 (0 ) 8.95(21) .93(7) 0 (0) 227 0 (0] 0 (0) - 4.63(8) .70(5] - 231 .22(6] 0 (0) .15(2 ) 6.41(21) 0 (0] 1.00(2) 234 .27(5] 0 (0) - 3.62(17) .75(2] - 238 .20(7] 0 (0) 0 (0 ) 6.15(26) .75(2] 1.00(1) 241 0 (o; 1 0 (0) - 3.06(8) 1.17(3] - 245 0 (0] ! 0 (0) .30(1 ) 0 (0) 248 .13(1] 1.5 (4) 252 0 (0 •75(2) 255 0 (0] .50(1) 259 0 (0] .50(1) 50 Braconidae Bethyloid Yel low pa 1980 ea Chalcididae Sweepnet 1979 Ground cloth 1979 n Pitfall Day 1979 1980 1981 150 - - 0 (0) 0 (0) 0 (0) - 154 - - .67(3) 0 (0) .10(3) 0 (0) 157 - - 0 (0) 0 (0) 0 (0) - 161 T - 0 (0) .15(2) 0 (0) 0 (0) 164 - - 0 (0) .30(1) •10(1) - 168 - - .50(2) .37(3) .20(2) .60(1) 171 - - .50(2] 1.40(1) 0 (0) - 175 - - .60(5] .17(3) 0 (0) .20(1) 178 - - .50(2] .33(4) 0 (0) - 182 - - .50(1] .65(2) 0 (0) .10(1) 185 0 (0) 0 (0) .50(1] • 41(5) 0 (0) - 189 - - .50(1] .45(2) .20(2) .20(1) 192 .33(3) •25(1) .50(1] .15(4) .15(2) - 196 - - .50(2] .45(4) 0 (0) 0 (0) 199 .69(4) .25(1) .50(1] 1 .57(7) 0 (0) - 203 - - 0 (0] 1 .50(5) .10(1) 0 (0) 206 .41(8) .50(1) .50(1] 1 .36(4) 0 (0) - 210 - - 1.00(1, 1 .39(8) 0 (0] 0 (0) 213 1.47(8) .56(4) .50(1 1 .15(3) 0 (0) - 217 - - 0 (0 ) .44(7) 0 (0] .20(1) 220 1.11(25) .68(21) 0 (0 ) .21(7) .10(1] - 224 - - 0 (0 ) -20(3) 0 (0] 0 (0) 227 .34(3) .25(1) 0 (0 ) .28(2) 0 (0] - 231 - - 0 (0 ) .68(1C 0 0 (0] 0 (0) 234 .55(5) .25(1) 0 (0 ) .26(5] .20(1] - 238 - - 0 (0 ) .33(4] 0 (0' 1 0 (0) 241 .75(2) 0 (0) 0 (0 ) .12(2] 0 (0 1 245 - - - .30(1] 0 (0 ) 0 (0) 248 •25(2) .25(1) - .17(4] - - 252 - - - .10(1 1 - 255 0 (0) 0 (0) - 0 (0 1 - 259 - - - 0 (0 1 - 51 Ch alcididae /el low pan Sweepnet 1979 Ground cloth Dav 1979 1980 1981 1979 150 9.00(2) 0 (0) - - - 154 0 (0) 1.19(24) 1.25(2) - - 157 0 (0) 1.34(9) - - - 161 3.05(30) .80(10) 2.5 (2) - - 164 1.47(18) .77(11) - - - 168 5.11(28) 1.19(8) 1.50(2) - - 171 9.63(4) .67(6) - - - 175 1.71(33) 1.21(12) • 89(7) - - 178 1.21(7) .79(7) - - - 182 2.57(23) .50(2) 2.17(3) - - 185 2.88(20) 1.38(12) - 0 (0) 0 (0) 189 2.96(36) 1.41(24) 1.94(8] - - 192 2.70(5) 1.77(13) - .75(1) .25(3) 196 2.02(31) 1.50(9) .79(7; - - 199 8.67(3) •91(11) - .60(10) .50(4) 203 2.31(29) .58(6) .79(7] - - 206 1.00(1) .88(4) - .57(10) .25(2) 210 3.08(20) .75(2) 1.00(5] - - 213 3.25(2) .75(4) - .45(14) .25(1) 217 1.71(26) 0 (0) 1.75(2] - - 220 5.31(8) .75(4) - .58(17) .99(12) 224 5.50(15) .50(3) 2.00(1 1 - 227 1.5 (7) 2.50(1) - .50(1) .60(5) 231 8.24(21) .63(4) 1.00(2 I - 234 2.10(20) .88(4) - .67(3) 2.75(2) 238 9.96(27) 0 (0) 1.25(2 1 - 241 3.94(8) 0 (0) - .63(2) .25(2) 245 0 (0) - - - - 248 3.30(5) - - 0 (0) 0 (0) 252 2.38(4) - - - - 255 9.33(3) - - •50(1) 0 (0) 259 .50(1) - - - - 52 Formicidae Pitfall Yellow pan Sweepnet Day 1979 1980 1981 1979 1980 1980 150 0 (0) 0 (0) - 0 (0) .50(1) - 154 0 (0) 1.47(6) 14.10(2) 0 (0) .67(3) - 157 0 (0) 0 (0) - 0 (0) .70(5) - 161 3.6. (2) 2.39(7) 6.84(12) .50(4) .50(4) - 164 5.07(8) .37(3) - .50(2) .67(3) - 168 2.06(8) 1.47(9) 1.78(12) .70(5) .67(3) - 171 2.17(3) .20(4) - 0 (0) 1.00(2) - 175 1.48(11) 1.53(6) 4.87(13) .50(4) .75(6) - 178 1.92(7) 8.37(3) - 1.00(1) .60(5) .25(1) 182 1.60(9) 0 (0) 4.87(10) 0 (0) .83(3) - 185 1.26(9) .91(12 ) 1.00(1) 1.00(4) 0 (0) 189 .88(14) 1.57(9) 7.49(13) .50(4) .75(6) - 192 .30(7) 3.26(8) - •75(2) .50(1) .50(1) 196 1.53(10) 1.93(7) 2.73(11) .50(5) 0 (0) - 199 1.48(10) .82(6) - 1.00(2) .67(3) .25(1) 203 1.05(10) 1.27(7) 2.47(11) .56(8) .50(1) - 206 1.79(8) .55(9) - 0 (0) 0 (0) • 25(1) 210 1.50(13) .68(9) 2.4 (9) .75(2) 1.00(1] - 213 .25(4) .28(6) - .50(1) .50(1] •25(1) 217 1.89(7) 8.4 (1) .7 (5) .50(1) 0 (0] - 220 .54(8) .57(12 ) 0 (0) 3.25(2] 0 (0) 224 .15(2) .57(7) 14.6 (1) 0 (0) .50(2] - 227 .15(2) 1.65(8) - 1.00(1) 1.00(2, 1 0 (0) 231 2.17(6) .85(4) 7.2 (1) 1.08(6) .50(1' 1 234 .97(5) .28(4) - 1.10(10) .75(4 1 2.00(2) 238 .10(3) .53(3] .33(3) 1.06(17) 0 (0 i 241 .38(2) .64(5] - .94(8) 0 (0 ) .25(1) 245 0 (0) 0 (0, .30(1) 0 (0) 0 (0 1 248 .25(2) - - .50(1) - - 252 0 (0) - - .75(2) - - 255 .10(1) - - .50(1) - - 259 0 (0) - - 0 (0) - - 53 Ichneumonidae Pi tfall Y el low pan Sweepnet Day 1979 1980 1979 1980 1981 1980 150 0 (0) 0 (0) .50(1) 0 (0) - - 154 0 (0) .30(2) 0 (0) 3.96(24) 0 (0) - 157 0 (0) 0 (0) 0 (0) 1.23(11) - - 161 ..10(1) .16(5) 1.05(22) 1.70(18) 1.00(1) - 164 .40(1) 0 (0) .75(10) 1.5 (12) - - 168 .30(2) .10(1) 1.00(12) 1.00(16) 1.25(2] - 171 .20(1) .20(1) 1.00(2) 1.07(14) - - 175 .10(1) .23(3) .73(18) 1.32(17) 2.17(3] - 178 .60(1) .15(2) 1.33(3) 1.21(28) - 0 (0) 182 •20(1) 0 (0) .50(6) .88(4) .50(3] - 185 0 (0) 1.48(4) 1.31(13) .86(11) - .25(1) 189 .13(2) .20(2) .91(23) .91(16) .50(4] i 192 .20(1] 6.44(5) 1.13(4) 1.11(18) - 0 (0) 196 .80(3] .10(1] .96(14) .77(11) .63(4' i 199 .13(3] •10(1] .75(2) 1.21(12) - .25(2) 203 .06(1] .60(1] .88(13) .60(10) .70(5 i 206 .20(3] .20(1] .75(2) .75(14) - 0 (0) 210 .06(1] •15(2] .73(13) • 71(12) 1.34(6 1 213 0 (0, 1 .17(3] 1.00(1) 1.08(18) - .40(5) 217 .10(2] 1 0 (0] .72(18) .50(1) 1.00(1 1 220 .20(1] 1 0 (0] 1 .80(5) .89(22) - .63(2) 224 •20(1] 1 .10(1] 1.06(9) .77(22) 0 (0 ) 227 0 (o1 1 2.50(2] 1 .50(3) .56(8) - .25(4) 231 •40(1] » o (o; 1 .67(9) 1.10(10) 1.00(1 1 234 0 (0 > .17(3] 1 1.00(8) 1.15(17) - .31(4) 238 .40(1 > o (o; 1 1.24(17) 1.39(15) 2.00(1 ) 241 0 (0 I 0 (0 I .50(4) .65(14) - 0 (0) 245 0 (0 1 0 (0 1 0 (0) - - - 248 .20(1 i 1.00(2) - - - 252 0 (0 i 0 (0) - - - 255 0 (0 ) 1.00(1) - - - 259 0 (0 i 0 (0) - - - 54 Pn Dctotruooidea 1 pan Sweepnet 1979 Pitfal 1 Yellov Ground cloth _Day 1980 1979 1980 1979 150 0 (0 ) 4.50(3) 0 (0) - - 154 .10(1 ) 0 (0) 2.02(21) - _ 157 0 (0 ) .50(1) 1.50(10) - _ 161 ..15(2 ) 2.83(33) 1.59(18) - _ 164 0 (0 ) .94(16) 1.14(11) - _ 168 0 (0 ) 3.52(29) 1.78(29) - _ 171 0 (0 ) 5.17(3) 1.85(27) - _ 175 .67(3 ) 1.53(23) 3.69(29) - _ 178 .25(2 ) .90(5) 2.63(29) - _ 182 0 (0 ) 2.82(19) 1.36(11) - _ 185 2.57(3 ) 3.28(20) .90(15) 0 (0) 0 (0) 189 •35(4. 1 2.20(38) 1.38(20) - - 192 .20(3] 1 1.30(5) .91(11) •25(3) •25(1) 196 .10(2] 1 1.80(28) 1.08(6) - - 199 0 (0; 7.5 (3) .63(4) 1.17(3) •25(1) 203 0 (0; 2.47(33) .60(5) - - 206 .10(1] .50(1) •64(7) .25(3) .25(2) 210 0 (0) 2.02(26) .75(4) - - 213 .10(1) 2.75(2) .50(3) .99(9) .56(4) 217 0 (0) 2.45(30) 0 (0) - - 220 0 (0) 4.22(7) 1.50(4) .75(20) .70(13) 224 .10(1) 8.11(19) 2.71(19) - - 227 0 (0) 3.66(9) 1.73(13) .38(2) .38(2) 231 0 (0) 10.82(22) 1.85(17) - - 234 .20(3) 3.65(20) 1.93(14) .69(4) 2.00(5) 238 0 (0) 21.71(26) 2.43(16) - - 241 •20(1) 8.33(9) 1.50(9) .54(6) .25(1) 245 0 (0) 0 (0) - - - 248 - 4.90(5) - .50(1) •25(1) 252 - 2.17(3) - - - 255 - 12.17(3) - .25(1) 0 (0) 259 - .50(1) _ _ _ 1,,. Jul l an date for 1980 (e.g. 1979 = 151; 1980 = . 150; 1981 = 151). 55 REFERENCES Boiteau, G. 1983. The arthropod community of potato fields in New Brunswick. Can. Ent. 115: (in press). Borror, D.J., D.M. DeLong and C.A. Triplehorn. 1976. An introduction to the study of insects. Holt, Rinehart and Winston. 852 pp. Hodgson, W.A., D.D. Pond and J. Munro Ced-H 1974. Diseases and pests of potatoes. Canada Department of Agriculture, Ottawa. Publication 1492. 69 p. International Potato Center. 1980. Pocket potato atlas. CIP, Lima, Peru, 47 p. MacGilli vray, M.E. 1979a. Aphids infesting potatoes in Canada: a field guide. Agriculture Canada, Ottawa. Publication 1676. MacGillivray, M.E. 1979b. Aphids infesting potatoes in Canada: life cycle and field key. Agriculture Canada, Ottawa. Publication 1678. New Brunswick Department of Agriculture. 1981. Agricultural statistics. New Brunswick Department of Agriculture. 59 p. Radcliffe, E.B. 1982. Insect pests of potato. Ann. Rev. Entomol . 27: 173-204. Shands, W.A. and B.J. Landis. 1964. Potato insects. Their biology and biological and cultural control. Agriculture Handbook No. 264. Agricultural Research Service, USDA. Shands, W.A. , G.W. Simpson, C.F.W. Muesebeck and H.E. Wave. 1965. Parasites of potato-infesting aphids in Northeastern Maine. Maine Agr. Expt. Sta. Tech. Bull. T-19, 77 p. Shands, W.A. , G.W. SimDSon, H.E. Wave and C.C. Gordon. 1972. Importance of arthropod predators in controlling aphids on potatoes in Northeastern Maine. Maine Life Sciences and Agr. Expt. Sta. Tech. Bull. 54, 49 pp. 56 ACKNOWLEDGMENTS I thank Drs. J.R. Barron, E.C. Becker, H.E. Bisdee, D.E. Bright, D. Brown, J.M. Campbell, B.E. Cooper, H. Goulet, K.G.A. Hamilton, M. Ivanochko, L. Lesage, J.E.H. Martin, 1_. Masner, W.R.M. Mason, J.F. McAlpine, J. McNamara, A. Smetana, J.R. Vockeroth, H.C.W. Walther, D.M. Wood and CM. Yoshimoto of the Biosystematics Research Institute of Agriculture Canada for identification of representative samples of insects Appreciation is due to Dr. K.B. McRae, Bruce and Mabel Peveril and David Ottoson for their handling of the large computer data bases. Also, thanks are due to Dr. M.E. MacGilli vray, formerly of Agriculture Canada and Dr. R.H. Parry of the New Brunswick Department of Agriculture for their assistance through the "Aphid Alert" program. 57 63072 C759 C 83-16 OOAg c.2 Boiteau, Gilles. The arthropod fauna of potato fields : LIBRARY BIBUOTHEQUE '■ '■ ' I II llll MUM fill llll Illl Ml II II llll l| l!|| I AGRICULTURE CANADA OTTAWA K1A 0C5 3 T073 00011172 b