Fig 9. Merhynchites bicolor 158
Description. Length 4.5-5.5 mm (head excluded). Body with ventral surface, legs, and rostrum black; elytra and dorsal surface <strong>of</strong> pronotum red or reddish brown to light yellow; head dull or shining, usually black, sometimes red behind eyes. Surface <strong>of</strong> head with elongate punctures between eyes; interpuncture spaces weakly elevated, carinate at base <strong>of</strong> rostrum. Eyes strongly convex. Rostrum <strong>of</strong> both sexes straight, more so in female, distinctly punctured, with 1 weakly elevated, longitudinal median ridge; base longitudinally impressed in front <strong>of</strong> eyes. Pronotum 1.1 times wider than long, widest at middle; sides broadly arcuate, strongly converging to broadly rounded apex; disc distinctly convex, with moderate, impressed punctures; interpuncture spaces moderately shining, smooth. Elytra l-.3 times longer than wide, at base 1.5-1.6 times wider than pronotum; strial punctures large; interstriae L5-2.0 times wider than striae, smooth, with fine, erect, scattered setae. Pygidium densely punctured. Distribution. Ontario to British Columbia, south throughout the United States to South Carolina in the east and Arizona and California in the west. Evidently more common in the west. Alberta: Calgary, Irving, Lethbridge, McMurray, Medicine Hat, Orion, Pincher Creek, and Red Deer. British Columbia: Agassiz, Ashcr<strong>of</strong>t, Boswell, Bowser, Cawston, Colwood, Cottonwood, Courtenay, Cowichan Lake, Creston, Elko, Galiano Island, Goldenstream, Kamloops, Langley, Lillooet, Merritt, Mission, Mission Flats, Nelson, Nicola, Osoyoos, Pavilion Lake, Peachland, Robson, Rolla, Royston, Saanich, Salmon Arm, Sicamous, Soda Creek, Squamish, Steelhead, Summerland, Trinity Valley, Vancouveq Vernon, Victoria, and Wellington. Manitoba: Birds Hill, Carberry, 2Ikm north <strong>of</strong> Glenboro, Ninette, Onah, Pierson, and Stockton. Ontario: Fort Erie, Ingolf, Nestor Falls, Ojibway, and St. Catharines. Saskatchewan: Cut Knife, Cypress Hills, Fort Walsh, Lebret, Oxbow Pike Lake, Saskatoon, St. Victor, Val Marie, and Weyburn. Comments. This species is commonly known as the rose curculio and is an occasional pest <strong>of</strong> cultivated roses (ftoso species) as well as blackberries and raspberries (Rubus species). The adults damage roses by puncturing numerous holes in the flower buds, causing the blooms to fail to develop. The larvae develop in the hips, feeding on the achenes. Adults also puncture ripe blackberries and raspberries, causing them to rot. Specimens <strong>of</strong> this species so strongly resemble those <strong>of</strong>M. wickhomi that identification is difficult if not impossible, unless one examines the spiculum gastrale (Figs. 157 and t62).InM. bicolor, the lateral margin <strong>of</strong> the spiculum gastrale (just at the expansion into the bifid process) bears an acute, tooth-like process; the process is absent inM. wiclthumi. Other characters given in the key to species are quite variable. (See discussion under M. wiclzhami.) The lectotype <strong>of</strong> M. bicolor was designated by Hamilton (1983b). 159
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I-HE INSECTS AND ARACHNIDS OF CANAD
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oMinister of Supply and Services Ca
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Part 11. The Genera of Larval Midge
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Genusdpioz Herbst Key to subgenera
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Acknowledgments Several individuals
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The families treated herein, with t
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of some diagnostic value. The pygid
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5. Antennae with distinct clubs (Fi
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6. Trochanter court, triangulaire;
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4. : : T::' :: "lll:tll " : ii Tl :
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Description. Pubescence abundant. H
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eticulate, dull; epistoma very narr
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Eu pari u s marmo reus (Olivier) Fi
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Type species. Anthribus albirostris
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Valentine (1971) records specimens,
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sg_ /uH l\4 S -$* 0 / \/'- \r-""^U
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sternites with white setae. sometim
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Key to species of Allandrus in Cana
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Distribution. Known from Alaska to
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This genus includes 21 North Americ
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2. Disque du pronotum irr6gulidreme
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T rigonorhinu s alternatus : Valent
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variable populations have been desc
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hf$t's"J "#o\ (\ * .P ry[\^\ \-/ 'u
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Hormiscus Gemminger and von Harold,
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Comments. Adults of this species ar
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that the absence of a frontoclypeal
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This genus contains three species,
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1. 2. 3. 4. 5. 1. 56 Key to species
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Cimberis elongata (LeConte) Map 10
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unknown; Kuschel (1989) had only 22
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dense, random, moderately deep, eac
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Acromacer Kuschel, 1989 : 152. Genu
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pronotum weakly granulose. Elytra e
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Fig. 4. '4rrhenodee rninutus 68
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protective cover or fluid is placed
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Description. Rostrum elongate, cyli
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Distribution. Manitoba to Alberta,
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5. 6. ,7 8. 9. 10. 11. 76 Limiting
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18. 19. 20. 27. 22. 23. 24. 78 'rll
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32. 33. ,J+. 35. ,JO. 37. 38. 80 Fr
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2. .f. Scales on elytra fine, spars
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13. M6tasternum du mAle portant des
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26. Article 1 du protarse presque a
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39. 40. 43. 44. Corps 6troit, allon
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Map 12. (r). Collection local ities
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Description. Length 1.8-2.3 mm. Bod
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description. Kissinger (1968) desig
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Comments. This species belongs in t
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punctured beyond antennal insertion
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than that adults are found most com
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Comments. This species, a member of
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Comments. This species belongs to t
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Map 1?. Collection localities of Ap
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- Page 130 and 131: Apion proclive LeConte Figs.49,720,
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- Page 156 and 157: Northwest Territories: Norman Wells
- Page 158 and 159: This genus contains four species in
- Page 162 and 163: Map 28. Collection localities of Me
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- Page 172 and 173: times longer than wide, twice as wi
- Page 174 and 175: Ithycerus noveboracensis (Forster)
- Page 176 and 177: Description. Length 12-18 mm. Body
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- Page 192 and 193: .Yt v\--l 49 A \,1 / 51 \/ tl FigF.
- Page 194 and 195: NAA AAA 78 7., 79 AAA A A-A 86 a7 8
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- Page 200 and 201: Glossary antennae The paired, segme
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- Page 204 and 205: Casey, T.L. 1884. Contributions to
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- Page 208 and 209: Jekel, H. 1855-1860. Insecta Saunde
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Olivier, A.G. 1795. Entomologie, ou
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Smith, J.B. 1884. Synopsis of the A
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Index (Page numbers of principal en
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Delphinium (Tourn.) L. 51 Deporaus
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Petalostemon candidus (Willd.) Mich
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Printedon recycledpper