Weevils - Entomological Society of Canada

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protective cover or fluid is placed over the egg. The incubation period is not known. Upon hatching, the larvae tunnel into the wood. The galleries are nearly straight across the grain of the wood. The larva keeps the tunnel clean by pushing the boring dust out through the hole made by the female to deposit her egg. Most larvae develop in living trees, but some are found to mature in trees that have been dead for at least 2 years. Larvae can be so numerous that the wood is rendered commercially useless. Pupation takes place within the gallery, but the length of the pupal period has not been determined. In addition to oak (Quercus species), specimens have been found in paper birch (Betula papyrifera), elm (Ulmus species), basswood (Tilia americana), poplar (Populus species), and beech (Fagus species). Family Apionidae This is a large family, with more than 1500 species around the world. Approximately 300 species in three genera occur in North America. The taxonomy of this group poses formidable difficulties. In addition to the large number of species, the individuals are small, usually 1.0-3.0 mm long, and diagnostic taxonomic characters are difficult to observe. The present treatment recognizes species in three genera that occur or probably occur in Canada and Alaska. Description. Body robust to moderately slender, usually black; appendages may be lighter. Pubescence sparse. Head with gular sutures fused; pregular sutures absent. Rostrum usually longer in female than in male. Maxillary palpus rigid, 2-segmented; lacinia distinct; labrum absent. Antennae straight, moniliform (except Nanophyes); antennal club distinct, compact. Legs with trochanter elongate, cylindrical; femur attached to apex of trochanter (Fig. 20). Abdomen with first and second visible sternites connate. Comments. Kissinger (1968) reviewed the entire family for North and Central America. He provided keys and descriptions for all species, and his monograph should be consulted for further information. Key to genera of Apionidae in Canada and Alaska 1. Antennae geniculate; scapes very long, slender (Fig. 19). Elytra nearly monochromatic, pale. Pubescence consisting of small, sparse, fine, recumbent scales. Interstria 8 smooth on basal quarter. i::*l i I i 3 -* "*:':1 *?"#:Y"oftye; s.h;;,.r,.,- rp irr 70
Antennae straight; scapes variable in length (Fig. 15). Combination ofother characters not as above . 2 2. Pronotum nearly cylindrical in dorsal view; sides parallel or weakly arcuate. Elytra with 10 complete striae. Tarsal segment 1 usually longer than wide. Length less than 3.0 mm apii"ii"n"iip. z+r 2. Pronotum with sides broadly rounded, widest near middle. Elytra with 9 complete striae. Tarsal segment 1 as wide as long. Length 3.1-4.8mm.. ..... PodapionRiley(p. 140) Cl6 des genres des Apionidae du Canada et de I'Alaska Antennes g6nicul6es; scapes trds longs, gr6les tfig. 19). Elytres presque monochromes, pdles. Pubescence constitu6e de petites 6cailles clairsem6es, fines, couch6es. Interstrie 8lisse dans son quart i:::i T:*::l' l:''? : i': ii,*'#;'#ul"3:"".,, 1p ir) Antennes droites; scapes de longueur variable (frg. 15). Combinaison des autres caractdres diff6rents de la description ci-dessus 2 Pronotum presque cylindrique en vue dorsale; c6t6s paralldles ou faiblement arqu6s. Dix stries 6lytrales compldtes. Article 1 du tarse T::i::'T::i: :l:: i:i? ir':::: T:*.";;;#"iils""f8 u Pronotum ayant les c6t6s g6n6ralement arrondis, plus larges prds du milieu. Neuf stries 6lytrales compldtes. Article 1 du tarse aussi * :::':11 :::*""1 lli:i ?n'l TT;o;o';; iii;y rp i+or Genus Nanophyes Schoenherr N anodes Schoenherr, L825:587 . N anophyes Schoenherr, 1838 : 780. P s eudoty chius Blatchley, 1922 : 102 ; Kissinger L9 56 :26 4. N ano dactylzzs Blatchley, 1922:103; Kissinger 1956 :264. This genus of about 400 species is known in all parts of the world except Central and South America. Four species are known in North America, only one of which occurs in Canada. Hoffmann (1958) states that in France species ofthis genus form galls on various plants. 7l
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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 :
Page 22 and 23: Description. Pubescence abundant. H
Page 24 and 25: eticulate, dull; epistoma very narr
Page 26 and 27: Eu pari u s marmo reus (Olivier) Fi
Page 28 and 29: Type species. Anthribus albirostris
Page 30 and 31: Valentine (1971) records specimens,
Page 32 and 33: sg_ /uH l\4 S -$* 0 / \/'- \r-""^U
Page 34 and 35: sternites with white setae. sometim
Page 36 and 37: Key to species of Allandrus in Cana
Page 38 and 39: Distribution. Known from Alaska to
Page 40 and 41: This genus includes 21 North Americ
Page 42 and 43: 2. Disque du pronotum irr6gulidreme
Page 44 and 45: T rigonorhinu s alternatus : Valent
Page 46 and 47: variable populations have been desc
Page 48 and 49: hf$t's"J "#o\ (\ * .P ry[\^\ \-/ 'u
Page 50 and 51: Hormiscus Gemminger and von Harold,
Page 52 and 53: Comments. Adults of this species ar
Page 54 and 55: that the absence of a frontoclypeal
Page 56 and 57: This genus contains three species,
Page 58 and 59: 1. 2. 3. 4. 5. 1. 56 Key to species
Page 60 and 61: Cimberis elongata (LeConte) Map 10
Page 62 and 63: unknown; Kuschel (1989) had only 22
Page 64 and 65: dense, random, moderately deep, eac
Page 66 and 67: Acromacer Kuschel, 1989 : 152. Genu
Page 68 and 69: pronotum weakly granulose. Elytra e
Page 70 and 71: Fig. 4. '4rrhenodee rninutus 68
Page 74 and 75: Description. Rostrum elongate, cyli
Page 76 and 77: Distribution. Manitoba to Alberta,
Page 78 and 79: 5. 6. ,7 8. 9. 10. 11. 76 Limiting
Page 80 and 81: 18. 19. 20. 27. 22. 23. 24. 78 'rll
Page 82 and 83: 32. 33. ,J+. 35. ,JO. 37. 38. 80 Fr
Page 84 and 85: 2. .f. Scales on elytra fine, spars
Page 86 and 87: 13. M6tasternum du mAle portant des
Page 88 and 89: 26. Article 1 du protarse presque a
Page 90 and 91: 39. 40. 43. 44. Corps 6troit, allon
Page 92 and 93: Map 12. (r). Collection local ities
Page 94 and 95: Description. Length 1.8-2.3 mm. Bod
Page 96 and 97: description. Kissinger (1968) desig
Page 98 and 99: Comments. This species belongs in t
Page 100 and 101: punctured beyond antennal insertion
Page 102 and 103: than that adults are found most com
Page 104 and 105: 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
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contents. Larval development extend
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Distribution. Central New York to c
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pronotum; sides, in dorsal vieq as
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parallel on apical quarter, slightl
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Apion proclive LeConte Figs.49,720,
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Map 22. Collection localities of Ap
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have been reared from tick trefoil
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September on the foilage of wild in
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"Tp.2I,Pge.12, W 4 Mer." British Co
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to slightly constricted apex, witho
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sagebrush (Artemisia heterophylla).
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2 rows of fine punctures bearing sc
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Elytra with punctures randomly plac
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Pte roc o I u s ovatus (Fabricius)
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Genus Eugnamptus Schoenherr Eugnamp
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females oviposit in dead leaves of
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Genus Pselaphorhynchites Schlisky R
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Northwest Territories: Norman Wells
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This genus contains four species in
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Fig 9. Merhynchites bicolor 158
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Map 28. Collection localities of Me
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users of this work will be cautious
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Auletobius blatchleyi Voss, 1935:24
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Distribution. Manitoba to British C
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Depo raus g I asti n us (LeConte) F
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times longer than wide, twice as wi
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Ithycerus noveboracensis (Forster)
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Description. Length 12-18 mm. Body
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2. Dos entidrement orange rougeAtre
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americdna), alder (Alnus rugosa), o
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Hamilton (1969) designated a lectot
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after its construction. The larva f
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Family Platypodidae The vast majori
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Figp. 12, I3. Platypus wilsoni. 12,
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A @\ 37 JC /t\ (A \) VV A 6/ fr-D )
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.Yt v\--l 49 A \,1 / 51 \/ tl FigF.
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NAA AAA 78 7., 79 AAA A A-A 86 a7 8
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4 e4 AAA xr^,f rNRA A-A*A Ak^ AAA F
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-----A -l- / ,/,/l\------:, I €i7
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Glossary antennae The paired, segme
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tibia (pl. tibiae) The fourth major
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Casey, T.L. 1884. Contributions to
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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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Printedon recycledpper
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