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68 results for “non-biting midges”
FIGURE 8 in Towards the diversity of non-biting midges of the tribe Tanytarsini from Eocene Baltic amber (Diptera: Chironomidae)
FIGURE 8. Stempellinella fibra sp. nov., adult male, holotype. Hypopygium and its structures in dorsal aspect, photographed in reflected light (1, 2), in transmitted light (4) and drawn (3, 5); 4-5, median volsella (5 magnified ca. 2 times relative to 4).
FIGURE 5 in Towards the diversity of non-biting midges of the tribe Tanytarsini from Eocene Baltic amber (Diptera: Chironomidae)
FIGURE 5. Tanytarsus crocota sp. nov., adult male, holotype. Hypopygium and its structures in dorsal (1, 2) and ventral aspect (3, 4), photographed in reflected light (1), transmitted light (3) and drawn (2, 4); 3-4, median volsella (4 magnified ca. 3 times relative to 2 and 3).
FIGURE 2 in Towards the diversity of non-biting midges of the tribe Tanytarsini from Eocene Baltic amber (Diptera: Chironomidae)
FIGURE 2. Rheotanytarsus hoffeinsorum sp. nov., adult male, holotype. 1, as syninclusion in amber (at left); 2, habitus.
FIGURE 1 in Towards the diversity of non-biting midges of the tribe Tanytarsini from Eocene Baltic amber (Diptera: Chironomidae)
FIGURE 1. Tanytarsini - inclusions in Baltic amber from the Hoffeins collection (for details see Table 1 and Material examined).
FIGURE 4 in Towards the diversity of non-biting midges of the tribe Tanytarsini from Eocene Baltic amber (Diptera: Chironomidae)
FIGURE 4. Tanytarsus crocota sp. nov., adult male, holotype. 1, inclusion in amber; 2, habitus; 3-4, wing photographed in transmitted (3) and reflected light (4); 5, spur of fore leg tibia.
FIGURE 7 in Towards the diversity of non-biting midges of the tribe Tanytarsini from Eocene Baltic amber (Diptera: Chironomidae)
FIGURE 7. Stempellinella fibra sp. nov., adult male, holotype. 1, inclusion in amber; 2, habitus; 3, antenna (white arrows: borders between well discernible flagellomeres; grey arrow: incomplete fusion); 4, frontal tubercle (black arrow), antennal pedicel and eye.
FIGURE 6 in Towards the diversity of non-biting midges of the tribe Tanytarsini from Eocene Baltic amber (Diptera: Chironomidae)
FIGURE 6. Variations of diagnostic structures in males of Tanytarsus protogregarius (1, 2) and T. serafini (3-6). Hypopygium in dorsolateral aspect (1, 3, 5) and its structures magnified ca. 3-4 times (below): anal point (2, 4) and superior volsella (6).
FIGURE 3 in Towards the diversity of non-biting midges of the tribe Tanytarsini from Eocene Baltic amber (Diptera: Chironomidae)
FIGURE 3. Rheotanytarsus hoffeinsorum sp. nov., adult male, holotype. Hypopygium and its structures in dorsal (1-3) and ventral aspect (4-6), photographed in reflected light (1, 4, 5) and drawn (2, 3, 6); 3, superior volsella; 5-6, median volsella (6 magnified ca. 2 times relative to 5 and ca. 5 times relative to 4).
Figure 2 in NEW RECORDS OF NON-BITING MIDGES (DIPTERA: CHIRONOMIDAE, ORTHOCLADIINAE) FROM MALLORCA, SPAIN Abstract
Figure 2. Hypopygium of Smittia pratorum (Goetghebuer, 1927) male with abnormal anal point. Black arrow pointing to the bifurcation in anal point.
Figure 1 in NEW RECORDS OF NON-BITING MIDGES (DIPTERA: CHIRONOMIDAE, ORTHOCLADIINAE) FROM MALLORCA, SPAIN Abstract
Figure 1. Collection sites at Mallorca.
Data from: The influence of potential stressors on oviposition site selection and subsequent growth, survival and emergence of the non-biting midge (Chironomus tepperi)
Theory predicts that animals should prefer habitats where their fitness is maximized but some mistakenly select habitats where their fitness is compromised, that is, ecological traps. Understanding why this happens requires knowledge of the habitat selection cues animals use, the habitats they prefer and why, and the fitness costs of habitat selection decisions. We conducted experiments with a freshwater insect, the non‐biting midge Chironomus tepperi to ask: (a) whether females respond to potential oviposition cues, (b) to explore whether oviposition is adaptive in relation to metal pollution and conductivity, and (c) whether individuals raised in poor quality sites are more likely to breed in similarly poor locations. We found the following: (a) females responded to some cues, especially conductivity and conspecifics, (b) females preferred sites with higher concentrations of bioavailable metals but suffered no consequences to egg/larval survival, (c) females showed some avoidance of high conductivities, but they still laid eggs resulting in reduced egg hatching, larval survival, and adult emergence, and (d) preferences were independent of natal environment. Our results show that C. tepperi is susceptible to ecological traps, depending on life stage and the relative differences in conductivities among potential oviposition sites. Our results highlight that (a) the fitness outcomes of habitat selection need to be assessed across the life cycle and (b) the relative differences in preference/suitability of habitats need to be considered in ecological trap research. This information can help determine why habitat preferences and their fitness consequences differ among species, which is critical for determining which species are susceptible to ecological traps.
FIGURE 7 in Non-biting midges of the tribe Tanytarsini in Eocene amber from the Rovno region (Ukraine): a pioneer systematic study with notes on the phylogeny (Diptera: Chironomidae)
FIGURE 7. Tanytarsus congregabilis sp. nov., male. A—type series: holotype and two paratypes (syninclusions); B—habitus (holotype); C—antenna; D—wing; E–I—hypopygium: E—lateral aspect; F, G—ventral aspect; H—distal part of gonostylus; I—median volsella (H, I—magnified three times relative to hypopygium drawn).
FIGURE 4 in Non-biting midges of the tribe Tanytarsini in Eocene amber from the Rovno region (Ukraine): a pioneer systematic study with notes on the phylogeny (Diptera: Chironomidae)
FIGURE 4. Corneliola avia sp. nov., male. A—wing; B–H—hypopygium: B, D—dorsal aspect, C—ventral aspect; E—apical bristle of gonostylus; F—anal point (variation); G—superior volsella; H—median volsella (E, G, H—magnified twice relative to hypopygium drawn).
FIGURE 6 in Non-biting midges of the tribe Tanytarsini in Eocene amber from the Rovno region (Ukraine): a pioneer systematic study with notes on the phylogeny (Diptera: Chironomidae)
FIGURE 6. Rheotanytarsus alliciens sp. nov., male. A—holotype (inclusion); B—habitus; C—head with antenna; D – wing; E–H—hypopygium: E, F—dorsal aspect; G—superior volsella, digitus and median volsella; H—median volsella (magnified c. three times relative to hypopygium drawn).
FIGURE 3 in Non-biting midges of the tribe Tanytarsini in Eocene amber from the Rovno region (Ukraine): a pioneer systematic study with notes on the phylogeny (Diptera: Chironomidae)
FIGURE 3. Corneliola avia sp. nov. A–C—type series: A—holotype, male; B—paratype, male; C—paratypes, male and female (syninclusions); D—male, habitus (holotype); E—thorax and head of male with 11/12-segmented antennal flagellum.
FIGURE 2 in Non-biting midges of the tribe Tanytarsini in Eocene amber from the Rovno region (Ukraine): a pioneer systematic study with notes on the phylogeny (Diptera: Chironomidae)
FIGURE 2. Archistempellina falcifera sp. nov., male. A—holotype (inclusion); B—habitus; C—antenna; D—wing; E–J— hypopygium: E, G—ventral aspect; F—lateral aspect; H—anal point; I—superior volsella, J—median volsella (H–J— magnified c. three times relative to hypopygium drawn).
FIGURE 1 in Non-biting midges of the tribe Tanytarsini in Eocene amber from the Rovno region (Ukraine): a pioneer systematic study with notes on the phylogeny (Diptera: Chironomidae)
FIGURE 1. Archistempellina bifurca sp. nov., male. A—holotype (inclusion); B—habitus; C, D—antenna (D—photographed using Nomarski DIC); E—wing; F–K—hypopygium: F, I—dorsal aspect; G—ventral aspect; H—lateral aspect; J—superior volsella; K—median volsella (J, K—magnified three times relative to hypopygium drawn).
Figure 6 in Wanted, tracked down and identified: Mesozoic non-biting midges of the subfamily Chironominae (Chironomidae, Diptera)
Figure 6. Palaeocentron krzeminskii, adult male, MP/4020 (ISEZ PAN); mid-Cretaceous, probably Albian–Cenomanian; Hukawng Valley, Kachin State, Myanmar. A–E, tibial apices of fore (A, B) mid- (C) and hindleg (D, E), with bristle fan magnified (E). F, G, thorn-like bristles on hindleg tibia: arrangement (F) and shape (G).
Figure 4 in Wanted, tracked down and identified: Mesozoic non-biting midges of the subfamily Chironominae (Chironomidae, Diptera)
Figure 4. Palaeocentron krzeminskii, adult male, MP/4020 (ISEZ PAN); mid-Cretaceous, probably Albian–Cenomanian; Hukawng Valley, Kachin State, Myanmar. A, inclusion in amber. B, Fourier transform infrared spectroscopy (attenuated total reflectance) spectrum no. 17497 IAA, obtained from amber piece with the examined inclusion.
Figure 3 in Wanted, tracked down and identified: Mesozoic non-biting midges of the subfamily Chironominae (Chironomidae, Diptera)
Figure 3. Pseudochironomini? incertae sedis, adult male, PIN 3130/223; Late Cretaceous, Santonian; Yantardakh, Taimyr Peninsula, Russia. A, inclusion in amber embedded in epoxy resin. B, habitus. C, D, wing, with RM vein area magnified (D). E, F, tibial armature of mid (E) and hindleg (F). G, H, hypopygium in dorsolateral (G) and ventrolateral aspect (H).
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