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Fig. 26-27 - Leiosoma senex. 26 in Revisione tassonomica delle specie del gruppo di Leiosoma cribrum (Coleoptera: Curculionidae: Molytinae)

Fig. 26-27 - Leiosoma senex. 26) Habitus dell'holotypus in visione dorsale. 27) Edeago in visione dorsale (holotypus).

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Fig. 23-25 - Leiosoma kostali. 23 in Revisione tassonomica delle specie del gruppo di Leiosoma cribrum (Coleoptera: Curculionidae: Molytinae)

Fig. 23-25 - Leiosoma kostali. 23) Habitus dell'holotypus. 24) Edeago di L. kostali in visione dorsale (holotypus). 25) Particolare dell'edeago in visione dorsale (holotypus).

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Figg. 15-17 - Leiosoma diottii. 15 in Revisione tassonomica delle specie del gruppo di Leiosoma cribrum (Coleoptera: Curculionidae: Molytinae)

Figg. 15-17 - Leiosoma diottii. 15) Habitus dell'holotypus. 16) Edeago in visione dorsale (holotypus). 17) Edeago in visione laterale (holotypus).

Fig. 2 in Distribution, host records, and symbiotic fungi of Euwallacea fornicatus (Coleoptera: Curculionidae: Scolytinae) in China

Fig. 2. The elytral declivity of Euwallacea fornicatus afer being parasitized by an unknown natural enemy.

Fig. 4. Survival curves with 95 in Effect of temperature on growth, reproductive activity, and survival of the invasive bromeliad-eating weevil Metamasius callizona (Coleoptera: Curculionidae)

Fig. 4. Survival curves with 95% confidence intervals for Metamasius callizona adults at 3 temperatures. Numbers of individuals at time zero were: 16 °C, n = 54; 25 °C, n = 47; and 35 °C, n = 74.

Fig. 2 in Effect of temperature on growth, reproductive activity, and survival of the invasive bromeliad-eating weevil Metamasius callizona (Coleoptera: Curculionidae)

Fig. 2. Development rate of Metamasius callizona from A) egg collection to pupation and from B) pupation to adult emergence at 4 temperatures in the weevil's operational range.

Fig. 1. Proportion and 95 in Effect of temperature on growth, reproductive activity, and survival of the invasive bromeliad-eating weevil Metamasius callizona (Coleoptera: Curculionidae)

Fig. 1. Proportion and 95% confidence intervals of A) eggs, B) larvae, C) pupae, and D) adults surviving afer exposure to 1 of 7 temperatures for 1, 2, or 4 d, and E) adult survival rate afer exposure to 0 °C for 6 and 8 d. Confidence intervals were calculated using Wilson score intervals (α = 0.05; Wilson 1927). For each life stage, the average number and range of replicates per the temperatures and days to which they were exposed were: eggs, average 25, range 12 to 32; larvae, average 25, range 20 to 37; pupae, average 15, range 10 to 28; adults, average 23, range 17 to 38.

Fig. 3 in Effect of temperature on growth, reproductive activity, and survival of the invasive bromeliad-eating weevil Metamasius callizona (Coleoptera: Curculionidae)

Fig. 3. Oviposition rate of Metamasius callizona at 7 temperatures. Results with the same letter are statistically similar; determined using analysis of variance and Tukey's method of multiple comparisons; α = 0.05; data collected daily from 10 females ovipositing for 14 d.

Fig. 1 in First report of Euwallacea nr. fornicatus (Coleoptera: Curculionidae) in Mexico

Fig. 1. Lateral (lef) and dorsal (right) view of Euwallacea nr. fornicatus detected in Tijuana, Mexico.

Fig. 2 in Evidence for male-produced aggregation pheromone in Sphenophorus incurrens (Coleoptera: Curculionidae)

Fig. 2. Mean (+ SE; N = 9) number of Sphenophorus incurrens weevils caught in traps baits with the different treatments. SC, Sugarcane; SC+P, sugarcane + pheromone; SC+M, sugarcane + males; P, pheromone. Columns with the same letter are not significantly different (a = 0.05; Tukey's test).

Fig. 1 in Evidence for male-produced aggregation pheromone in Sphenophorus incurrens (Coleoptera: Curculionidae)

Fig. 1. Simultaneous responses measured by flame ionization detection (FID) and electroantennographic detection (EAD) in the antennae of Sphenophorus incurrens males to headspace volatiles collected from (A) conspecific males and (B) 10 ng synthetic 2-methyl-4-octanol, on a SPB-1 capillary column.

Fig. 2 in Resistance of rice varieties to Sitophilus oryzae (Coleoptera: Curculionidae)

Fig. 2. Correlaton between the percentage of grains with fissures in the shell and mass of grain consumed by Sitophilus oryzae (Coleoptera: Curculionidae) in 22 rice varietes. 1-Aimoré; 2-Araguaia; 3-BonanÇa; 4-CabaÇu; 5-Caripuna; 6-Carisma; 7-Centro América; 8-ConfianÇa; 9-Curinga; 10-Esmeralda; 11-IRGA 22; 12-Monarca; 13-Pepita; 14-Progresso; 15-Rio Paraguai; 16-Rio Paranaíba; 17-Rio Verde; 18-Sertaneja; 19-Soberana; 20-Tangará; 21-Vencedora; 22-Xingu.

Fig. 1 in Spread of Larinus minutus (Coleoptera: Curculionidae), a biological control agent of knapweeds, following introduction to northwestern Arkansas

Fig. 1. Percentage of infested capitula (A) and spread rate (B) of Larinus minutus populations on spotted knapweed from the release point at each of 5 release sites in northwest Arkansas as modeled by the exponential decay function: y = Ae-Bx

Fig. 1 in Resistance of rice varieties to Sitophilus oryzae (Coleoptera: Curculionidae)

Fig. 1. Preference index of feeding by Sitophilus oryzae (Coleoptera: Curculionidae) on 22 rice varietes.

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Figs. 1 and 2 in Studies of ambrosia beetles (Coleoptera: Curculionidae) in their native ranges help predict invasion impact

Figs. 1 and 2. Machilus (Lauraceae) trees in Huisun Forest, Taiwan, colonized by Xyleborus glabratus and Raffaelea lauricola. 1. Wood pieces excised from an injured but living tree. Staining is a reliable sign of R. lauricola establishment. 2. Injured trees showing symptoms of laurel wilt. Photographs by A. Black.

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Figs. 1–3 in First record of Chalcodemus bicolor (Coleoptera: Curculionidae) enemies in South America

Figs. 1–3. Hymenoptera natural enemies of Chalcodermus bicolor. 1 and 2: Euderus spp. (Eulophidae), scale bars = 1.33 mm; and 3: Eurydinoteloides sp. (Pteromalidae), scale bar = 1.40 mm.

Fig. 1 in Head capsule width is useful for determining larval instar in Heilipus lauri (Coleoptera: Curculionidae)

Fig. 1. Frequency distribution of the head capsule widths (µm) of Heilipus lauri larvae. Graph generated by the Hcap program.

Fig. 2 in Head capsule width is useful for determining larval instar in Heilipus lauri (Coleoptera: Curculionidae)

Fig. 2. Linear regression relationship between the natural logarithm of the mean larval head capsule width and the instars of Heilipus lauri larvae.

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Fig. 1 in First global record of Podisus nigrispinus (Hemiptera: Pentatomidae) as predator of Gonipterus platensis (Coleoptera: Curculionidae) larvae and adults

Fig. 1. Cumulative efficiency of predation (%) by Podisus nigrispinus nymphs and adults on of G. platensis larvae and adults over a period of 5 d: 2 adults (1 male and 1 female) of P. nigrispinus with 20 adults of G. platensis (T3), 2 adults (1 male and 1 female) of P. nigrispinus with 20 larvae of G. platensis (T4), 2 nymphs of P. nigrispinus with 20 larvae of G. platensis (T5), and 2 nymphs of P. nigrispinus with 20 adults of G. platensis (T6)