| 1. |
- Kanuch, Peter
(författare)
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Somatic and population adaptations of Polysarcus denticauda (Orthoptera) in extreme altitudes
- 2009
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Ingår i: Entomologica Fennica. - 0785-8760. ; 20, s. 207-214
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Tidskriftsartikel (refereegranskat)abstract
- Altitudinal preferences, somatic and population adaptations in different ecological conditions were analysed in flightless bush-cricket species Polysarcus denticauda (Charpentier, 1825). Altitudinal analysis was performed in GIS software (more than 60 sites in Slovakia, Central Europe). Seasonal occurrence and population density were recorded in selected sites. To compare differences, absolute values of measurements (length of body, hind femur and tibia, cerci and weight) and Body Condition Index were taken from males. Study species prefers mesophilous montane up to alpine meadows in higher elevations (over 600 in a.s.l.). The development started over one month earlier in lowlands and populations reached several fold higher density there. Males from lowlands had body parameters significantly bigger apart from cerci. Cerci were significantly longer in males from mountains. However, males of the same size were significantly heavier in higher attitudes. In conclusion, refuges of montane meadows ecosystem support species survival nowadays.
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| 2. |
- Kjaerandsen, Jostein
(författare)
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Two new species of Allodia subgenus Brachycampta Winnertz from Norway and Sweden (Diptera : Mycetophilidae)
- 2007
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Ingår i: Entomologica Fennica. - 0785-8760. ; 18:1, s. 17-23
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Tidskriftsartikel (refereegranskat)abstract
- Allodia (Brachycampta) huggerti sp. n. from Sweden and Allodia (Brachycampta) rindeni sp. n. from Norway and Sweden are described based on a few adult males. Detailed illustrations of their terminalia are provided. The A. (B.) barbata species group is defined for species of which both dorsal and ventral branches of the male gonostylus are reduced to slender lobes, and the two new species both belong in this species group. They differ from other species in the species group primarily by the structure of the apicoventral corners of the gonocoxite, by the shape of the hypandrial lobe, and in details of the gonostylus. The new species seem to be most closely related with each other and further to A. (B.) racemosa Zaitzev, 1992 known from Alaska. The new species are named in memory of their collectors, the late dr. Lars Huggert (1942-2003) and the late Helge Rinden (1967-1999).
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| 3. |
- Kurina, Olavi, et al.
(författare)
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A Siberian fungus gnat (Diptera: Mycetophilidae) species found in Estonia
- 2009
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Ingår i: Entomologica Fennica. - 0785-8760. ; 20:1, s. 56-60
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Tidskriftsartikel (refereegranskat)abstract
- The first European record of Exechia inaperta Ostroverkhova, 1979 is presented and its morphological difference from the allied E. exigua Lundstrom, 1909 is discussed. Diagnostic characters and detailed figures of male terminalia are given for both species. The new finding of E. inaperta in Estonia indicates a possibly disjunct Euro-Siberian distribution pattern of the South-Taiga, also observed in several other species of fungus gnats.
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| 4. |
- Sanmartin, Isabel
(författare)
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Biology and larval morphology of the genus Ceramida Baraud (Coleoptera: Melolonthidae: Pachydeminae)
- 2007
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Ingår i: Entomologica Fennica. - 0785-8760. ; 18:2, s. 117-125
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Tidskriftsartikel (refereegranskat)abstract
- The biology and larval morphology of Ceramida, a pest of olive trees in southern Spain, are described. The life-cycle is multivoltine, spanning three years in the field. Females lay eggs in the early spring, with the highest larval densities in June. Larvae feed on the root system of plants. Pupation takes place in the late summer. Adults emerge with the first autumnal rainfalls, with mating extending from September to January. Larval characters such as type of head pubescence, shape of antennal sensory areas, chaetotaxy of raster, and degree of reduction of metathoracic claws are of taxonomic value within Pachydeminae.
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