Discriminatory matrix for the larvae of the European Thremma species (Trichoptera: Thremmatidae)

O editor da revista permite ao autor subir, exclusivamente, a primeira páxina do artigo.This synoptic paper is intended to summarize and supplement the information available on the larvae of Thremma McLachlan 1876 in Europe. We present information on the morphology of the larvae and illustrate the most important diagnostic features. This information is used for the construction of a comprehensive discriminatory matrix for the four European species of family Thremmatidae Martynov 1935 known in the larval stage so far. In the context of this matrix, larvae can be easily diagnosed by the shape of mesonotal sclerites, foretrochantins, forefemora and ventral sclerites on abdominal segment I, by head coloration patterns, by case morphology, and by distribution. In addition, ecological characteristics and distributions of the European taxa are briefly discussed.S

Prvi nalaz vrste Beraea dira McLachlan 1875 (Insecta, Trichoptera, Beraeidae) u Hrvatskoj

The caddisfly species Beraea dira McLachlan 1875 was recorded for the first time in Croatia in the upper course of the Bistrac River in October 2014.Tular Beraea dira McLachlan 1875 je po prvi put utvrđen na području Hrvatske u gornjem toku rijeke Bistrac u listopadu 2014. godine

Hydrologic Variability Affects Invertebrate Grazing on Phototrophic Biofilms in Stream Microcosms

The temporal variability of streamflow is known to be a key feature structuring and controlling fluvial ecological communities and ecosystem processes. Although alterations of streamflow regime due to habitat fragmentation or other anthropogenic factors are ubiquitous, a quantitative understanding of their implications on ecosystem structure and function is far from complete. Here, by experimenting with two contrasting flow regimes in stream microcosms, we provide a novel mechanistic explanation for how fluctuating flow regimes may affect grazing of phototrophic biofilms (i.e., periphyton) by an invertebrate species (Ecdyonurus sp.). In both flow regimes light availability was manipulated as a control on autotroph biofilm productivity and grazer activity, thereby allowing the test of flow regime effects across various ratios of biofilm biomass to grazing activity. Average grazing rates were significantly enhanced under variable flow conditions and this effect was highest at intermediate light availability. Our results suggest that stochastic flow regimes, characterised by suitable fluctuations and temporal persistence, may offer increased windows of opportunity for grazing under favourable shear stress conditions. This bears important implications for the development of comprehensive schemes for water resources management and for the understanding of trophic carbon transfer in stream food webs

Tools for instar determination of European caddisfly larvae (Insecta: Trichoptera)

Waringer, Johann (2021): Tools for instar determination of European caddisfly larvae (Insecta: Trichoptera). Zootaxa 4908 (1): 85-101, DOI: https://doi.org/10.11646/zootaxa.4908.1.

Identification and morphology of a rhyacophilid caddisfly larva from Cyprus: Rhyacophila aphrodite Malicky 1975

Waringer, Johann, Malicky, Hans (2019): Identification and morphology of a rhyacophilid caddisfly larva from Cyprus: Rhyacophila aphrodite Malicky 1975. Zootaxa 4623 (3): 563-570, DOI: https://doi.org/10.11646/zootaxa.4623.3.

FIGURES 1–6. Plectrocnemia renetta Malicky 1975, 5 in The larva of Plectrocnemia renetta Malicky 1975 (Trichoptera, Polycentropodidae), including a discriminatory matrix to the larvae of Plectrocnemia Stephens 1836 species of Greece

FIGURES 1–6. Plectrocnemia renetta Malicky 1975, 5th instar larva. 1, head and prothorax, dorsal (dotted lines = halftrapezoidal pattern of spots on posterior frontoclypeus, about 100°; small numerals refer to setal positions); 2, head and prosternum, ventral (a = anterior ventral apotome; ls – labial spinneret; ml = maxillary lobe; mp = maxillary palp; m = ventral process of epimeron; ss = submental sclerite; arrows = ventral processes of pronotum); 3, head and prothorax, right lateral (m = epimeron; s = episternum; t = foretrochantin); 4, labrum, dorsal (arrow = central pigmented mark); 5, mandibles, dorsal (a = apical tooth; arrows = subapical teeth); 6, mandibles, ventral (a = apical tooth; arrows = subapical teeth). Scale bars: 0.5 mm.Published as part of <i>Waringer, Johann & Malicky, Hans, 2019, The larva of Plectrocnemia renetta Malicky 1975 (Trichoptera, Polycentropodidae), including a discriminatory matrix to the larvae of Plectrocnemia Stephens 1836 species of Greece, pp. 372-382 in Zootaxa 4568 (2)</i> on page 374, DOI: 10.11646/zootaxa.4568.2.11, <a href="http://zenodo.org/record/10072803">http://zenodo.org/record/10072803</a&gt

Identification and morphology of an apataniid caddisfly larva from the Levant: Apatania cypria Tjeder 1952

Waringer, Johann, Malicky, Hans (2018): Identification and morphology of an apataniid caddisfly larva from the Levant: Apatania cypria Tjeder 1952. Zootaxa 4382 (1): 185-191, DOI: https://doi.org/10.11646/zootaxa.4382.1.

FIGURES 12–17. Figures 12–14. Plectrocnemia renetta Malicky 1975, 5 in The larva of Plectrocnemia renetta Malicky 1975 (Trichoptera, Polycentropodidae), including a discriminatory matrix to the larvae of Plectrocnemia Stephens 1836 species of Greece

FIGURES 12–17. Figures 12–14. Plectrocnemia renetta Malicky 1975, 5th instar larva: 12, abdominal segment IX, ventral (ip = innermost primary seta; op = outermost primary seta; p = intermediate primary setae); 13, abdominal segment IX, dorsal, posterolateral setal trio (is = inner secondary seta; os = outer secondary seta; p = primary seta); 14, left anal proleg, left lateral (sc = distal sclerotized section; so = proximal unsclerotized section; dotted lines = right angle superimposed on obtuse-angled anal claw). Figure 15. P. kingi McLachlan 1881, 5th instar larva, left foreleg, posterior (double arrow = projected half length of tibia). Figure 16. P. g. geniculata McLachlan 1871, 5th instar larva, abdominal segment IX, ventral (ip = innermost primary seta; op = outermost primary seta; p = intermediate primary setae). Figure 17. P. c. conspersa (Curtis 1834), 5th instar larva, abdominal segment IX, ventral (ip = innermost primary seta; op = outermost primary seta; p = intermediate primary setae). Scale bars: 0.5 mm.Published as part of <i>Waringer, Johann & Malicky, Hans, 2019, The larva of Plectrocnemia renetta Malicky 1975 (Trichoptera, Polycentropodidae), including a discriminatory matrix to the larvae of Plectrocnemia Stephens 1836 species of Greece, pp. 372-382 in Zootaxa 4568 (2)</i> on page 376, DOI: 10.11646/zootaxa.4568.2.11, <a href="http://zenodo.org/record/10072803">http://zenodo.org/record/10072803</a&gt

Key and bibliography of the genera of European Trichoptera larvae

Waringer, Johann, Graf, Wolfram (2013): Key and bibliography of the genera of European Trichoptera larvae. Zootaxa 3640 (2): 101-151, DOI: http://dx.doi.org/10.11646/zootaxa.3640.2.