Weevils - Entomological Society of Canada

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Northwest Territories: Norman Wells. Nova Scotia: Annapolis County, Mount Uniacke, and Petite Rividre Ontario: Arnprior, "Blackburn Springs," Huntsville, Kearney, Merivale, Moosenee, Port Credit, Prince Edward County, Roseland, 24 km north of Sioux Lookout, Toronto, and Walsingham. Quebec: Brome, Cap Chat, Cascapedia, Duparquet, 40 km west of Gasp6, Montreal, Mont-Albert, Mont-Saint-Hilaire, Potter Springs, Rouville, and Ville-Marie. Saskatchewan: Great Deer and Waskesieu. Comments. Adults of this species are easily distinguished from P perplexus, the only other Canadian representative of this genus, by the color as summarized in the key and by the largely conceled pygidium. This species has been recorded from willow (Salix species) in Canada and from birch (Betulo species) and oak (Quercus species) elsewhere. Map 2?. Collection localities of Pselaphorhynchites qnnellus (o) and Pperplaus (O). P se I apho rhync h ites pe rpl exus (Blatchley) Figs. 152, 153, 154, 155;Map27 Rhynchites perplexus Blatchley, 1916:95 (holotype, Crawford County, Ind.; Purdue University); Blatchley and Leng 1916:60. Pselaphorhyruites perplexus: Hamilton 1969:229; Hamilton 1971:990; O'Brien and Wibmer 7982:L7; Hamilton 1983a:5LI-522. 154
Description. Length 1.7-2.7 mm. Body black, without bluish reflection; antennae, legs, and tip of rostrum somewhat lighter. Head quadrate, slightly longer than wide, with round, evenly spaced, setiferous punctures; interpuncture spaces with dense, shining, minute granules. Rostrum distinctly arcuate, about one-third longer than head and pronotum; sides, in dorsal view, gradually diverging from antennal insertion to apex, narrower at apex than frons; apex weakly flattened. Antennae inserted near basal 0.2 (female) or just in front of basal 0.2 (male) of rostrum. Pronotum slightly longer than wide, widest behind middle; sides slightly converging anteriorly; disc with round to irregular, dense, setiferous punctures; interpuncture spaces with a few granules. Elytra more than twice as long as wide, twice as wide as pronotum; striae not impressed, with deep, quadrate punctures; interstriae about half as wide (or less) as striae, weakly convex, each with l row of small, round, setiferous punctures. Pygidium nearly completely visible, covered by elytra only at extreme base. Distribution. Prince Edward Island to Ontario, south through the northeastern United States to Georgia, west to Kansas. New Brunswick: Penobsquis. Nova Scotia: Halifax. Ontario: Toronto. Prince Edward Island: Brackley Beach. Quebec: Kazabazta and Laniel. Comments. See the key for characters to distinguish adults of this species from those of P. cyanellus. The two Canadian representatives of this genus are so dissimilar that further comparisons are unnecessary. Hamilton (1983o) provides the following data on the life history of this species in Ohio. His observations are probably valid for southern Ontario. Adults feed on the leaves of sweet fern (Comptonia peregrina) by scraping off strips of the upper epidermis. Larvae feed and develop in leaf primordia, which have been cut from the host plant by the females. Adults emerge in late May and do not live much beyond the end of June. Females oviposit in and cut leaf primordia throughout June. Eggs hatch in about 10 days, and larvae develop slowly, not reaching the fourth instar until September. Winter is passed in the fourth-instar larval stage. Spring pupation occurs within the hollowed-out leaf primordia in mid to late May. One generation occurs each year. Hamilton (1983o) provides illustrations and descriptions for the larvae and pupae of this species. Genus Merhynchifes Sharp Merhynchites Sharp, 1889:57; Hamilton 1969:255; O'Brien and Wibmer 1982 :L6; Hamilton 1985 : 49-64. 155
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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
Page 106 and 107: Comments. This species belongs to t
Page 108 and 109: Map 1?. Collection localities of Ap
Page 110 and 111: ostrum, with 2 rows of punctures se
Page 112 and 113: interpuncture spaces coarsely aluta
Page 114 and 115: Apion lrosfl Kissinger Figs. 92, 93
Page 116 and 117: of A. hatchl may be distinguished (
Page 118 and 119: Distribution. Ontario to Alberta, s
Page 120 and 121: interstriae about twice as wide as
Page 122 and 123: contents. Larval development extend
Page 124 and 125: Distribution. Central New York to c
Page 126 and 127: pronotum; sides, in dorsal vieq as
Page 128 and 129: parallel on apical quarter, slightl
Page 130 and 131: Apion proclive LeConte Figs.49,720,
Page 132 and 133: Map 22. Collection localities of Ap
Page 134 and 135: have been reared from tick trefoil
Page 136 and 137: September on the foilage of wild in
Page 138 and 139: "Tp.2I,Pge.12, W 4 Mer." British Co
Page 140 and 141: to slightly constricted apex, witho
Page 142 and 143: sagebrush (Artemisia heterophylla).
Page 144 and 145: 2 rows of fine punctures bearing sc
Page 146 and 147: Elytra with punctures randomly plac
Page 148 and 149: Pte roc o I u s ovatus (Fabricius)
Page 150 and 151: Genus Eugnamptus Schoenherr Eugnamp
Page 152 and 153: females oviposit in dead leaves of
Page 154 and 155: Genus Pselaphorhynchites Schlisky R
Page 158 and 159: This genus contains four species in
Page 160 and 161: Fig 9. Merhynchites bicolor 158
Page 162 and 163: Map 28. Collection localities of Me
Page 164 and 165: users of this work will be cautious
Page 166 and 167: Auletobius blatchleyi Voss, 1935:24
Page 168 and 169: Distribution. Manitoba to British C
Page 170 and 171: Depo raus g I asti n us (LeConte) F
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
Page 178 and 179: 2. Dos entidrement orange rougeAtre
Page 180 and 181: americdna), alder (Alnus rugosa), o
Page 182 and 183: Hamilton (1969) designated a lectot
Page 184 and 185: after its construction. The larva f
Page 186 and 187: Family Platypodidae The vast majori
Page 188 and 189: Figp. 12, I3. Platypus wilsoni. 12,
Page 190 and 191: A @\ 37 JC /t\ (A \) VV A 6/ fr-D )
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
Page 196 and 197: 4 e4 AAA xr^,f rNRA A-A*A Ak^ AAA F
Page 198 and 199: -----A -l- / ,/,/l\------:, I €i7
Page 200 and 201: Glossary antennae The paired, segme
Page 202 and 203: tibia (pl. tibiae) The fourth major
Page 204 and 205: Casey, T.L. 1884. Contributions to
Page 206 and 207:
Gemminger, M.; von Harold, E. 1872.
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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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