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I-HE INSECTS AND ARAOHNIDS OF CANADA t* g#* rtr Errata for The lnsects and Arachnids of Canada Part 8. The Plant Bugs of the Prairie Provinces of Canada Heteroptera: Miridae by Leonard A. Kelton Biosystematics Research Institute Ottawa, Ontario Publication 1703 1 980 Page 183, line 8: For Phytocoris sa/ices read Phytocoris sa/icis Page 196, bottom line: For llnacorella Reuter read llnacorella Knight Page 286: The illustration on this page should be the illustration on page 287 Page 287: The illustration on this page should be the illustration on page 286 Page 302, line 31 . For 1980a:285 read 1980a:289 Page 341, line 3: Add 285. Page 368, line 19: Add 289. Page 377,line 3: Add 390. Page 378, line 3: For 1980d:387 read 1980d:389 Page 379, line 5: For 1980d:387 read 1980d:389 THE INSECTS AND ARACHNIDS OF CANADA FART B The Plant Bugs of the Prairie Provincbs of Canada HeteroQtera, Miridae Leonard A. Kelton Biosystematics Research Institute Ottawa. Ontario Research Branch Agriculture Canada Publication 1703 1980 @Minister of Supply and Services Canada 1980 Available in Canada through Authorized Bookstore Agents and other bookstores or by mail from Canadian Government Publishing Centre Supply and Services Canada Hull, Quebec, Canada KIA 0S9 Catalogue No. A 42-42l1980-8 Canada: $9.95 ISBN 0-660-106 13-2 Other countries: $ 11.95 Price subject to change without notice Part l- Collecting, Preparing, and preserving Insects, Mites, and Spiders, compiled by J. E. H. Martin, Biosystematics Research Institute, oitawa, 1971 . Part 2. The Bark Beetles of canada and Alaska (coleoptera: Scolytidae), by D. E. Bright, Jr., Biosystematics Research lnstitute. Ottawa. lij6. Part 3. The Aradidae of Canada (Hemiptera: Aradidae), by R. Matsuda, Biosystematics Research Institute. Ottawa. 1917. ParI 4. The Anthocoridae of Canada and Alaska (Heteroptera: Anthocoridae), by L. A. Kelton, Biosystematics Research Institute, Ottawa, 1978. Part 5. The crab Spiders of canada and Alaska (Araneae: philodromidae and Thomisidae), by C. D. Dondale and J. H. Redner, Biosvstematics Research Institute, Ottawa, 1978. lu.J 0 The Mosquitoes of Canada (Diptera: Culicidae), by D. M. Wood, p T. Dang, and R. A. Ellis, Biosystematics Research Institute, Ottawa, 1919. Partie 7 . Genera des Trichoptdres du canada et des Etats adjacents, par F. Schmid, Institut de recherches biosyst6matiques, Ottawa, l9-g0. Contents Acknowledgments Introduction .. .... ll Collecting and preserving specimens t2 Biology . .. , l3 Morphology l4 C lassi fication l5 Key to subfamilies . .. ......, l5 Subfamily Mirinae lb Key to tribes of Mirinae.. l6 Tribe Pithanini . l6 Key to genera oi Pithanini 16 Genus Pithanas Fieber. .... .. l6 Genus Mimoceps Uhler .. ....... 18 Tribe Stenodemini ., 20 Key to genera of Stenodemini . ... .. 20 Genus Actitocorls Reuter ...... 22 Genus Collaria Provancher .... 22 Genus Stenodema Laporte .... 24 Genus Litomiris SIater.. ....... 29 Genus Leptopterna Fieber ... 3l Genus Trigonotylus Fieber . 34 Genus Teratocoris Fieber ...... AA Tribe Resthenini ... .. .. 48 Key to genera of Resthenini ........ 48 G enus Op i s t he uris t a Carval ho 48 Genus Prepops Reuter 48 Tribe Mirini 55 Key to genera of Mirini 55 Genus Neurocolpzs Reuter 56 Genus Taedia Distant 51 Genus Tropidosteptes Uhler . ..... .. 60 G enus N e o b or e I I a Knight /o Genus Poeci locapszs Reuter 78 Genus Agnocol"is Reuter 80 Genus Capsas Fabricius, 82 Genus Irbisia Reuter ..... 83 Genus Lygidea Reuter 86 Genus Polymerus Hahn 88 Genus P/esiocorrs Fieber o7 Genus Saiignts Kelton....... 99 Genus Orthops Fieber 99 Cenus Lygrzs Hahn . t00 Genus Platylygus Yan Duzee 135 Genus Pinalitr.i Kelton 139 Genus Dichrooscytus Fieber . 141 Genus Lygocoris Reuter...... 146 Genus Metriorrhynchomiris Kirkaldy ... 162 Genus Stenotls Jakovlev r63 G enus P hy t oc o r i s F all6n 165 Gents Adelphocoris Reuter 184 Cenus Calocoris Fieber 187 Subiamily Orthotylinae 188 Key to tribes of Orthotylinae.. .. .... ... 188 Tribe Halticini r89 Key to genera of Halticini 189 Genus La bops Burmcislcr 189 Genus Halt icas Hahn..... 194 Tribe Orthotylini 194 Key to genera of Orthotylini . 196 G enus C e r a t ocdp.ra.r Reuter 197 Genus Sericorr hanes ReuLer 211 Genus Schaffneria Knight. 212 Genus S laterocoris Wagner 1l A Cenus I I natora Reutcr.... 21',7 G enus I I nac o re I I a Knight 221 Gcnus Broofts€1la Kelton 221 Genus Hadronema Uhler 225 Genus Lopidea Uhler 231 Genus Lahopidea Uhler 23'7 G enus La b o p i d i c o I a Kelton 1AA Gents Noct uocoris Knight 246 Gents Parthericas Reuter. 247 G enus H es pe rocap s us Knight 249 G enus M e I anot r ic hus Reuter 251 Genus Reateria Puton .. 259 Genus Fieberocapsus Carvalho & Southwood 259 Genus Mecomma Fieber 261 Genus Cyrtorhinus Fieber . 262 Genus Diaphnocoris Kelton. 263 Genus Orthotylris Fieber 265 114 Tribe Pilophorini. .. Gem,s Pilophorus Hahn 114 Sublamily Phylinae 279 Key to tribes of Phylinae 280 Tribe Hallodapini 280 Key to genera of Hallodapini . 280 Genus Coqui I lett ia Uhler 280 Genus Orectoderus Uhler 282 Tribe Phylini 289 Key to genera of Phylini.. .. 289 Gents Icodema Reuter........ 291 G enus Conos tet hus Fieber 293 Cenus Chlamydatus Curtis...... .. 294 Genus Tytthus Fieber 302 Genus Rft inoc aps u s Uhler 305 Genus Microphylellws Reuter.. .. 308 Genus Phyllopidea Knight . 3ll G enus H oplomach us Fieber 313 Genus Monosynamma Scott .... .. 3r5 Genus Plagiognathus Fieber . 315 Genlus Pseudatomosce I i s Poppius 330 Genus Lepidopsallus Knight. 331 Genus Atractotomus Fieber ........ JJ+ Genus Criocoris Ficber 335 Genus Atomo.icelis Reuter 335 Genus Megalopsallus Knight . .. 337 Genus Europiella Reuter .... 341 Genus Psallus Ficber J4) Subfamily Deraeocorinae 349 Key to tribes of Dcraeocorinite ..... 350 Tribe Clivinematini 350 gencra Key to ol Clivinemarini , 350 Genus Clivinena Reuter 350 Genus Largidea Y an Duzee. ........ 351 TribeHyaliodini . 353 Genus Hyaliodes Reuter 355 Tribe Deracocorini 35s Key 1o genera of Deracocorini .. .......... 355 Genus Eustictzs Reuter 357 Genus Deraeocoris Kirschbaum .. 357 Subfamily Dicyphinae 372 Genus Dicyphr.s Fieber 372 Subiamily B11ocorinae 3'.79 Kcy to genera of Bryocorinac .......... 379 Genus Monalocori.r Dahlbom . .. 380 Genus Sixeololr,r Reuter 383 Scientific and common names of plants ... .. 384 Glossary...... 38'7 References 389 I ndex 402 Acknowledgments Most of the specimens for this faunal work were collected with the assistance of the late Arthur R. Brooks, Agriculture Canada Research Station, Saskatoon, Sask., and are in the Canadian National Collection of Insects, Ottawa, Ont. and Agriculture Canada's Research Station, Sas- katoon, Sask. The other specimens and records were obtained from the Canadian National Collection of Insects, and from the Agriculture Cana- da's Research Stations at Lethbridge, A1ta. and Winnipeg, Man. I am grateful to the following people and their institutions for making available the collections in their care: Dr. R. C. Froeschner, U'S. National Museum, Washington, D.C.; Dr. J. L. Herring, SEL, USDA, U.S. National Museum, Washington, D.C.; and Dr. P. H. Arnaud, Jr', California Acade- my of Sciences, San Francisco, Calif. I gratefully acknowledge the cooperation of the superintendents and wardens of Waterton, Banff, Jasper, and Riding Mountain national parks while I was working in the parks in 1970 and 7912, and of D. Allen, Director, and G. Schumann, technical supervisor, Whiteshell Provincial Park, Falcon Beach, Man. while I was working there in 19'14, 191 5, and I 978. Special thanks are due to D. Brown, my technician, for preparing the distribution maps, and to S. Rigby of this Institute, for preparing several illustrations of adult Miridae. lntroduction The Miridae, or plant bugs, are of great economic importance to man because they feed on plants, or prey on other arthropods. The bugs may also act as vectors of plant virus diseases. Damage to crops by these bugs has often resulted in losses of millions of dollars. This group of bugs is not well known in Canada, particularly in the northern areas of the Prairie Provinces, the Yukon, and the Northwest Territories. Despite their large numbers, the plant bugs are poorly represent- ed in collections, and confusion exists in naming them. In recent years special efforts have been made to collect the Miridae from coast to coast in Canada, and especially in the farming and ranching areas of the Prairie Provinces. As a result, knowledge of the range and distribution of the species has been expanded and new information on their habits and ecology has been obtained. The aim of this report is to help the economic entomologists and other field workers in the Prairie Provinces and elsewhere to identify the species of this important group of plant bugs so often encountered in field surveys and control programs. This faunal work treats the species of Miridae known to occur in the Prairie Provinces. The work was initiated by the late Arthur R. Brooks and the author in 1949 at Agriculture Canada's Research Station, Saskatoon, Sask. At the outset, many difficulties were encountered in identifying species because the only publications available were Knight (1923b,1941c) and Blatchley (1926). With the publication of A catalogue of the Miridae of the world by Carvalho (1951-1959), and subsequent publications by Kelton (see References), Kelton and Knight (1962), Knight (1974), and Kelton and Herring (1978),45 species have been reported from the Prairie Provinces. This work shows that 314 species of Miridae occur in this area. Most of the species are restricted to the Nearctic region, but 27 species are Holarctic in distribution. Most of the Holarctic species are native to North America, but several have been introduced by man. In economic terms the effect of harmful species seems to far outweigh the beneficial effect of the predaceous speciet. ttt" bugs suck juices from plants and when large populations are allowed to develop, they may destroy or greatly reduce the yield of grain, seed, and vegetable crops.