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20 results for “Aethina”
Fig 3 in A potential pheromone for the mass trapping of Aethina tumida (Coleoptera: Nitidulidae)
Fig 3. Attraction of combined male and female small hive beetle attraction to the pheromone blend in a flight tunnel. Means number of small hive beetles captured (± SE) with shared letters are not significantly different.
Fig 2 in A potential pheromone for the mass trapping of Aethina tumida (Coleoptera: Nitidulidae)
Fig 2. Small hive beetle male and female gas chromatography electroantennographic detector response to (a) 6-methyl-5-hepten-2-one; (b) 5-nonanal; (c) 6-decanal.
Fig 4 in A potential pheromone for the mass trapping of Aethina tumida (Coleoptera: Nitidulidae)
Fig 4. Attraction of combined male and female small hive beetles to the fruit blend in a flight tunnel. Means number of small hive beetles captured (± SE) with shared letters are not significantly different.
Fig. 1 in A potential pheromone for the mass trapping of Aethina tumida (Coleoptera: Nitidulidae)
Fig. 1. Representative total ion chromatogram of volatiles released by male small hive beetles (n = 100) and captured on a Tenax® porous polymer adsorbent. Peak number compound: (1) acetic acid; (2) ethyl acetate; (3) octanal; (4) 6-methyl-5-hepten-2-one; (5) nonanal; (6) decanal.
Figure 1 in First record of the beekeeping pest Aethina tumida Murray (Coleoptera: Nitidulidae) for Honduras
Figure 1. Aethina tumida from El Zamorano, Honduras, dorsal and ventral views. (Scale = 2.0 mm.)
Figura 3 in Primer registro del pequeño escarabajo de la colmena Aethina tumida Murray (Coleoptera: Nitidulidae) en colmenas de abejas africanizadas en Guatemala
Figura 3. Vista lateral de la larva de Galleria mellonella.
Figura 2 in Primer registro del pequeño escarabajo de la colmena Aethina tumida Murray (Coleoptera: Nitidulidae) en colmenas de abejas africanizadas en Guatemala
Figura 2. Vista lateral de la larva de Aethina tumida.
Figura 1 in Primer registro del pequeño escarabajo de la colmena Aethina tumida Murray (Coleoptera: Nitidulidae) en colmenas de abejas africanizadas en Guatemala
Figura 1. Habitus dorsal del adulto de Aethina tumida.
FIGURES 40–50 in On Aethina Erichson of Northeast India (Coleoptera: Nitidulidae: Nitidulinae)
FIGURES 40–50. Aethina (Aethina) argus Grouvelle, 1890: 40, Dorsal facies, line drawing (adapted from Grouvelle, 1890); 41, Tegmen, line drawing (adapted from Kirejtshuk, 1986); 42, Median lobe, line drawing (adapted from Kirejtshuk, 1986); 43. A. (A.) cyaneipennis Grouvelle, 1903: Dorsal facies (line drawing adapted from Kirejtshuk, 1986); 44–50. A. (A.) inconspicua Nakane, 1967 (adapted from Kirejtshuk, 1986): 44, Tegmen of specimen from Punjab; 45, 47, Median lobe and 48, Tegmen of specimen from S. China; 46, Median lobe of specimen from Punjab; 49, Dorsal facies of specimen from Fuji; 50, Dorsal facies of specimen from Punjab.
FIGURES 10–18. 10–17 in On Aethina Erichson of Northeast India (Coleoptera: Nitidulidae: Nitidulinae)
FIGURES 10–18. 10–17: Aethina (Idaethina) subrugosa (Grouvelle, 1894), line drawings: 10, mandible, dorsal view; 11, maxilla, ventral view; 12, labium, ventral view; 13, labrum, dorsal view; 14, anal sclerite (tergite VIII) and spiculum gastrale; 15, ovipositor; 16, male genitalia: tegmen, ventral view; 17, male genitalia: median lobe, ventral view; 18, Aethina (Idaethina) orientalis (Nietner, 1856) male genitalia: tegmen and median lobe.
FIGURES 1–9 in On Aethina Erichson of Northeast India (Coleoptera: Nitidulidae: Nitidulinae)
FIGURES 1–9. Aethina (Idaethina) subrugosa (Grouvelle, 1894), line drawings: 1, head, dorsal view; 2, prothorax, ventral view; 3, meso-metathorax, ventral view; 4, mesoscutellum, dorsal view; 5, abdomen, ventral view; 6, right elytron, dorsal view; 7, front leg; 8, metendosternite; 9, hind wing.
FIGURES 25–39 in On Aethina Erichson of Northeast India (Coleoptera: Nitidulidae: Nitidulinae)
FIGURES 25–39. Aethina (Circopes) subquadrata (Motschulsky, 1858): 25–29: 25, abdomen with pygidium, dorsal view, photograph; 26, male genitalia with tegmen and median lobe, microphotograph; 27, ovipositor, microphotograph; 28, male genitalia: tegmen, line drawing; 29, male genitalia: median lobe, line drawing; Aethina (Aethina) vicina Grouvelle, 1894: 30–31, 34–35: 30, male genitalia: tegmen, line drawing (derived from Kirejtshuk, 1986); 31, male genitalia: median lobe, line drawing (derived from Kirejtshuk, 1986); 34, dorsal habitus; 35, ventral habitus. Aethina (Aethina) nigrocastanea Grouvelle, 1903: 32–33, 36–39; 32, male genitalia: tegmen, line drawing; 33, male genitalia: median lobe, line drawing; 36, ventral habitus, photograph; 37, dorsal habitus; 38, male genitalia: tegmen, microphotograph; 39, male genitalia: median lobe, microphotograph.
FIGURES 19–24. 19, 21, 23 in On Aethina Erichson of Northeast India (Coleoptera: Nitidulidae: Nitidulinae)
FIGURES 19–24. 19, 21, 23, (dorsal habitus): 19, Aethina (Idaethina) orientalis (Nietner, 1856); 21, Aethina (Idaethina) subrugosa (Grouvelle, 1894); 23, Aethina (Circopes) subquadrata (Motschulsky, 1858); 20, 22, 24, (ventral habitus): 20, Aethina (Idaethina) orientalis (Nietner, 1856); 22, Aethina (Idaethina) subrugosa (Grouvelle, 1894); 24, Aethina (Circopes) subquadrata (Motschulsky, 1858).
FIGURES 17–32. A in New species and records of subgenus Aethina from China (Coleoptera: Nitidulidae)
FIGURES 17–32. A. (A.) cyaneipennis Grouvelle, 1903, (17) male habitus, dorsal, (18) male habitus, ventral, (23) tegmen, dorsal, (24) median lobe, dorsal; A. (A.) dubitabilis Kireitshuk, 1986, (19) male habitus, dorsal, (20) male habitus, ventral, (25) tegmen, dorsal, (26) median lobe, dorsal; A. (A.) kirejtshuki Jelínek, 1995, (21) male habitus, dorsal, (22) male habitus, ventral, (27) tegmen, dorsal, (29) median lobe, dorsal; A. (A.) lindskogi Jelínek & Kirejtshuk, 1986, (28) tegmen, dorsal, (30) median lobe, dorsal (31) male habitus, dorsal, (32) male habitus, ventral. Scale bars: 1mm (17–22, 31, 32), 0.2mm (23–30).
FIGURES 1–16. A in New species and records of subgenus Aethina from China (Coleoptera: Nitidulidae)
FIGURES 1–16. A. (A.) similinconspicua sp. nov. (1) male habitus, dorsal, (2) male habitus, ventral; (3) tegmen, dorsal surface, (4) tegmen, lateral surface, (5) median lobe, dorsal, (6) male eighth abdominal sternite, dorsal, (7) internal sac sclerites of aedeagus, dorsal, (8) anal sclerite, dorsal, (9) ovipositor, dorsal; A. (A.) shizhuica sp. nov. (10) male habitus, dorsal, (11) male habitus, ventral, (12) median lobe, dorsal, (13) tegmen, lateral surface, (14) tegmen, dorsal surface, (15) anal sclerite, dorsal, (16) male eighth abdominal sternite, dorsal. Scale bars: 1mm (Scale bars: 0.2mm (1–2, 11–12), 0.2mm (3–9, 12–16).
Data from: Evolution of starvation resistance in an invasive insect species, Aethina tumida (Coleoptera: Nitidulidae)
<p>Starvation resistance, or the ability to survive periods without food, can shed light on selection pressure imposed by food scarcity, including chances to invade new regions as a result of human transport. Surprisingly little information is known about starvation resistance for invasive insect species. Given that native and invasive populations differ in starvation resistance, this would suggest different selection scenarios and adaptive shifts fostering invasion success. Here, we show striking differences in starvation resistance of adult small hive beetles Aethina tumida (SHB) between native and invasive populations. In the laboratory, starvation resistance of freshly-emerged laboratory-reared and field-collected adult females and males was evaluated in the beetle's native African range and in their invasive North American range. SHB in their native African range survived longer than SHB in their invasive North American range. Across ranges, females survived longer than males. Field-collected SHB survived in Africa longer than freshly-emerged ones, but not in the invasive range. This suggests no selection for starvation resistance in the invasive range, possibly due to differences between African and European-derived honey bee hosts facilitating a tradeoff scenario between reproduction and starvation resistance. The ability of adult females to survive up to two months without food appears to be one factor contributing to the invasion success of this species. Assuming food availability is usually high in the invasive ranges, and trade-offs between starvation resistance and fecundity/reproduction are common, it seems as if selection for starvation resistance during transport could set up potential trade-offs that enhance reproduction after invasion. It would be interesting to see if this is a possible general pattern for invasive insect species.</p>
Thiamethoxam soil contaminations reduce the fertility of a soil-dwelling beetle (Aethina tumida)
<p class="MsoNormal"><span>The sixth mass extinction event is underway and environmental pollution is one major driver. Of particular concern are global insect declines, as their roles in ecosystem functionality and human food security are indispensable. Even though environmental pollutants are known to reduce fertility, their potential effects on insect fitness remain poorly understood - especially for soil-dwelling species. Here, we show that fertility of soil-dwelling beetles, <em>Aethina tumida</em>, is reduced, on average, by half due to field-realistic neonicotinoid soil contaminations. In the laboratory, pupating beetles were exposed via soil to concentrations of the neonicotinoid thiamethoxam that reflect global pollution of agricultural and natural habitats. Emerged adult phenotypes and reproduction were measured, and even the lowest concentration reported from natural habitats reduced subsequent reproduction by 50%. The data are most likely a conservative estimate as the beetles were </span><span>only exposed during pupation. Since the tested concentrations reflect ubiquitous global soil pollution, the data reveal a plausible mechanism for ongoing insect declines. An immediate reduction in environmental pollutants is urgently required if our aim is to mitigate the prevailing loss of species biodiversity.</span><span> </span></p>
Data from: Evolution of starvation resistance in an invasive insect species, Aethina tumida (Coleoptera: Nitidulidae)
Open the record for dataset details and reuse information.
Thiamethoxam soil contaminations reduce the fertility of a soil-dwelling beetle (Aethina tumida)
Open the record for dataset details and reuse information.
MAP 1 in On Aethina Erichson of Northeast India (Coleoptera: Nitidulidae: Nitidulinae)
MAP 1: Distribution of Aethina in Northeast India.
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