New species of Spartiella and Legeriosimilis from mayflies and other arthropod-associated trichomycetes from Nova Scotia, Canada

Botany ◽  
2012 ◽  
Vol 90 (12) ◽  
pp. 1195-1203 ◽  
Author(s):  
Merlin M. White ◽  
D.B. Strongman
Keyword(s):  
New Species ◽  
Nova Scotia ◽  
Growth Pattern ◽  
Aquatic Insects ◽  
Unusual Feature ◽  
Ecological Group ◽  
Corophium Volutator ◽  
Potential Significance ◽  
Amphipod Crustacean ◽  
Freshwater Insects

The digestive tracts of non-predaceous, aquatic insects and other arthropods living in moist habitats harbour a group of fungal and protistan microorganisms known as trichomycetes or “gut fungi”. A former class of Zygomycota, “trichomycetes” now refers to an ecological group of gut microbes. This report adds to the growing inventory of gut fungi that have been described from Atlantic Canada, with two new fungal trichomycetes, Legeriosimilis hiemalis sp. nov. Strongman and M.M. White and Spartiella aurensis sp. nov. Strongman and M.M. White, both from Ephemeroptera (mayfly) nymphs. Legeriosimilis hiemalis is now the fourth of seven known species of the genus to be recorded only from Canadian sites. Spartiella aurensis displays an unusual feature, with thalli apparently able to grow from the hindgut back into the midgut of its host, a growth pattern not typically observed in other gut fungi. The potential significance of this development is discussed. Despite the focus on immature freshwater insects and their habitats, we also record a species of Orchesellaria from Collembola (springtails) and Astreptonema corophii from the amphipod crustacean Corophium volutator.

scholarly journals Trichomycetes from lentic and lotic aquatic habitats in Ontario, Canada

Botany ◽  
2008 ◽  
Vol 86 (12) ◽  
pp. 1449-1466 ◽  
Author(s):  
D. B. Strongman ◽  
Merlin M. White
Keyword(s):  
New Species ◽  
Aquatic Insects ◽  
Ecological Group ◽  
Aquatic Habitats ◽  
Arthropod Communities ◽  
Black Fly ◽  
Lotic Habitats ◽  
Lotic Environments ◽  
First Time ◽  
Lentic Systems

Fungi and protists make up an ecological group, trichomycetes, that inhabit the guts of invertebrates, mostly aquatic insects. Trichomycetes are reported herein from arthropods collected in lotic habitats (fast flowing streams) and lentic environments (ponds, ditches, seeps, and lakes) from 11 sites in Algonquin Park and 6 other sites in Ontario, Canada. Thirty-two trichomycete species were recovered, including 7 new species: Legeriomyces algonquinensis , Legeriosimilis leptocerci , Legeriosimilis whitneyi , and Paramoebidium umbonatum are described from mayfly nymphs (Ephemeroptera); Pennella digitata and Glotzia incilis from black fly and midge larvae (Diptera), respectively; and Arundinula opeongoensis from a crayfish (Crustacea). Legeriomyces rarus Lichtw. & M.C. Williams and Stachylina penetralis Lichtw. are new North American records, and seven species are documented for the first time in Canada. More common and widely distributed trichomycete species such as Harpella melusinae Léger & Duboscq and Smittium culicis Manier, were also recovered. Most previous studies on trichomycetes have been done primarily in lotic environments but clearly lentic systems (e.g., ponds and lakes) harbour diverse arthropod communities and further exploration of these habitats will continue to increase our knowledge of trichomycete diversity.

New species and geographical distribution of trichomycetes (gut fungi) in a novel host, caddisfly (Trichoptera)

Botany ◽  
2019 ◽  
Vol 97 (10) ◽  
pp. 537-545
Author(s):  
D.B. Strongman ◽  
M.M. White
Keyword(s):  
Seasonal Variation ◽  
New Species ◽  
Nova Scotia ◽  
Geographical Distribution ◽  
Aquatic Insects ◽  
Herbivorous Insects ◽  
Caddisfly Larvae ◽  
Novel Host ◽  
Freshwater Habitats ◽  
Common Group

Trichomycetes are fungi and protists living in the guts of arthropods. Herbivorous insects in freshwater habitats commonly house these microbes, and there are over 300 species described. One very common group of aquatic insects occurring in most freshwater systems is caddisflies, belonging to the Order Trichoptera. Although these are potentially good hosts for trichomycetes, there has been little published on trichomycetes in this host and none have been described from caddisflies. We collected and dissected caddisfly larvae from multiple sites in Canada from 2001 to 2018 and describe five new species of trichomycetes from trichopteran larvae. Data are presented on the prevalence and seasonal variation of trichomycetes in caddisfly larvae at one site in Nova Scotia where multi-year collections were made.

Trichomycetes associated with insects in lotic habitats (streams) within the Halifax Regional Municipality, Nova Scotia, Canada

Botany ◽  
2013 ◽  
Vol 91 (6) ◽  
pp. 368-381 ◽  
Author(s):  
R.T. William ◽  
D.B. Strongman
Keyword(s):  
Nova Scotia ◽  
Aquatic Insects ◽  
Original Description ◽  
Published Data ◽  
Ecological Group ◽  
Site Specificity ◽  
Eastern Canada ◽  
Lotic Habitats ◽  
Terrestrial Habitats

Reported from marine, freshwater, and terrestrial habitats, trichomycetes are an ecological group of both fungi and protists that colonize the guts of insects, crustaceans, and millipedes. Lotic sites (streams, rivers) are a rich source of hosts and their trichomycetes. As part of a larger study of trichomycetes from different aquatic habitats within the Halifax Regional Municipality in Nova Scotia, Canada, one stream from each of three separate watersheds was sampled for aquatic insects, and their guts were dissected and examined for microscopic trichomycetes. Over the course of 17 months, 24 species of trichomycetes were collected including the following four new species: Glotzia gemina sp. nov. R.T. William and Strongman from a mayfly (Baetidae); Stachylina tanysoma sp. nov. R.T. William and Strongman; Smittium ampliboja sp. nov. R.T. William and Strongman; and Smittium insolitum sp. nov. R.T. William and Strongman, all recovered from dipteran (Chironomidae) hosts. New continental records were established for three species including Smittium pusillum Manier & Coste and Stachylina euthena Manier & Coste, both originally described from France, and Smittium nodifixum Strongman & Shengquan Xu previously known only from China. A new regional geographical record for Pennella arctica Lichtw. & M.C. Williams is reported and 17 other species previously known from eastern Canada were recorded. Pteromaktron timberleaense R.T. William & Strongman was described by us from Timberlea, Nova Scotia, but at the time no sexual spores (zygospores) were seen. In the collections reported in this paper, zygospores were found so the original description is emended to include the zygospore features for this species. This report adds to the published data on trichomycetes from Nova Scotia that have appeared over the last 10 years and highlights the significance of long-term sampling in cataloguing the diversity of this group of insect associated microorganisms. We also present some data on seasonal variation in trichomycete occurrence and comment on site specificity in the trichomycetes we collected.

New species of Smittium and Stachylina and other trichomycetes in larval Diptera from streams in Nova Scotia, Canada 1This paper is dedicated to Jo-Ann Frost, one of the first students of these fungi in Nova Scotia, and to the numerous other undergraduates who have engaged with us in our studies of gut fungi, not only in the province, but wherever our studies have taken us.

Botany ◽  
2012 ◽  
Vol 90 (12) ◽  
pp. 1204-1219 ◽  
Author(s):  
Merlin M. White ◽  
D.B. Strongman
Keyword(s):  
New Species ◽  
Nova Scotia ◽  
The Other ◽  
Atlantic Canada ◽  
Ecological Group ◽  
Eastern Canada ◽  
Species Inventory ◽  
Terrestrial Habitats ◽  
Protistan Species ◽  
First Time

The guts of non-predaceous invertebrates in aquatic and moist terrestrial habitats are often colonized by an ecological group of microorganisms called trichomycetes. Taxonomically, these endobionts are currently a diverse, polyphyletic assemblage including both zygomycetous fungi as well as protistan species. Trichomycetes are worldwide in distribution and are from varied habitats, but the species inventory of gut fungi from hosts in Canada is far from complete. We summarize the findings from our earliest surveys (from 1997 to 2005) and collections of candidate dipteran hosts in Nova Scotia. Nine new species of gut fungi are added to the inventory list, including the following seven Smittium spp.: Smittium aggregatum, Smittium gronthidium, Smittium papillum, Smittium pavocaudatum, Smittium radiculans, Smittium sparsum, and Smittium verticillatum, and the following two Stachylina spp.: Stachylina brevicellaris and Stachylina subgrandis. Four of the other 13 Harpellales, Pennella digitata, Smittium megazygosporum, Stachylina penetralis, and Zancudomyces culisetae are reported for the first time in Atlantic Canada. Also recorded is Paramoebidium curvum, with many more specimens of this genus from various locations and hosts included as Paramoebidium spp. only. We suggest that future collections of Diptera, to further document and discover trichomycetes, are warranted across the varied host habitats that abound not only in eastern Canada but the rest of the country as well.

Trichomycetes occurring in both lentic (lake) and lotic (stream) habitats within the Halifax Regional Municipality, Nova Scotia, Canada

Botany ◽  
2013 ◽  
Vol 91 (6) ◽  
pp. 382-402 ◽  
Author(s):  
R.T. William ◽  
D.B. Strongman
Keyword(s):  
New Species ◽  
Nova Scotia ◽  
Habitat Preference ◽  
Aquatic Insect ◽  
Ecological Group ◽  
Frequency Of Occurrence ◽  
Aquatic Habitats ◽  
Insect Larvae ◽  
Chironomidae Larvae ◽  
Aquatic Insect Larvae

Trichomycetes are an ecological group of fungi and protists found inside the gut lumen of aquatic insect larvae and have been reported virtually everywhere trichomycetologists have looked for them. Trichomycetes are common in freshwater aquatic habitats, both lentic and lotic, though lentic habitats have been explored less frequently. An inventory of trichomycetes inhabiting both stream (lotic) and lake (lentic) habitats was conducted within the Halifax Regional Municipality, Nova Scotia, Canada, including one site at the interface where a stream emptied into a lake. Twenty-six species of trichomycetes were collected from both lotic and lentic sites, nine of which are new species, all isolated from midge (Chironomidae) larvae. These are as follows: Smittium adaiosporum sp. nov. R.T. William and Strongman, Smittium cryptancora sp. nov. R.T. William and Strongman , Smittium petilum sp. nov. R.T. William and Strongman, Smittium peculiare sp. nov. R.T. William and Strongman, Stachylina abundans sp. nov. R.T. William and Strongman, Stachylina extensiva sp. nov. R.T. William and Strongman, Stachylina infrequens sp. nov. R.T. William and Strongman, Stachylina somnisimilis sp. nov. R.T. William and Strongman, and Stachylina uranus sp. nov. R.T. William and Strongman. In addition, a new continental record for Smittium hecatei L.G. Valle & Santam. previously reported from Spain and new regional geographic records for Smittium minutisporum Lichtw., Siri & M.M. White and Smittium mucronatum Manier & Mathiez ex Manier are documented. In addition, 14 other trichomycetes previously reported from Atlantic Canada were recorded and these included both harpellid fungi and protists in the genus Paramoebidium. Insects from the orders Diptera, Ephemeroptera, and Plecoptera were all found to contain trichomycetes. Data on the frequency of occurrence and the habitat preference for some gut fungi are discussed.

New species, records, and immature stages of Chimarra Stephens (Trichoptera: Philopotamidae) from Campos Amazônicos National Park, northern Brazil

Zootaxa ◽  
2018 ◽  
Vol 4500 (2) ◽  
pp. 258
Author(s):  
GLEISON ROBSON DESIDÉRIO ◽  
PATRIK BARCELOS-SILVA ◽  
NEUSA HAMADA
Keyword(s):  
New Species ◽  
Aquatic Insects ◽  
National Park ◽  
Primary Objective ◽  
Immature Stages ◽  
Male Adult ◽  
Northern Brazil ◽  
Amazonas State ◽  
First Time ◽  
A New Species

Campos Amazônicos National Park is a federal conservation unit that contains part of the largest Cerrado refuge in the southern part of Brazilian Amazonia. Recently, during a survey of aquatic insects in the park, specimens of the caddisfly genus Chimarra were collected. The primary objective of this paper, as a result of this effort, is to describe and illustrate the male adult of a new species in Chimarra (Chimarrita), Chimarra singularis sp. nov., and the immature stages of Chimarra usitatissima Flint 1971. Additionally, the distributions of C.(Chimarrita) akantha Blahnik 1997 and C. (Curgia) jugescens Flint 1998 are extended to the southern part of Amazonas state, and C. (Chimarrita) heppneri Blahnik 1997 is recorded for the first time in northern Brazil. 

scholarly journals Descriptions of Nearctic Caddis Flies (Trichoptera)

1938 ◽  
Vol 21 (1-8) ◽  
pp. 101-183 ◽  
Author(s):  
T. H. Frison
Keyword(s):  
New Species ◽  
North America ◽  
Natural History ◽  
Aquatic Insects ◽  
Initial Report ◽  
Illinois Natural History Survey ◽  
Caddis Flies ◽  
History Survey

This paper, describing new species of caddis flies from Illinois and other localities in North America, is the initial report on a project of the Illinois Natural History Survey pertaining to these aquatic insects.

scholarly journals Filling gaps in the DNA barcode library - Aquatic insects (Ephemeroptera, Plecoptera, Trichoptera) from semi-mountainous and mountainous rivers of Ecoregion 6 (North Macedonia)

2021 ◽  
Vol 4 ◽  
Author(s):  
Biljana Rimcheska ◽  
Yanka Vidinova
Keyword(s):  
New Species ◽  
Dna Barcoding ◽  
Aquatic Insects ◽  
Molecular Genetic ◽  
Dna Barcode ◽  
Balkan Peninsula ◽  
Molecular Genetic Data ◽  
Medium Quality ◽  
Total Dna ◽  
Data Library

This research provides pivotal molecular genetic data on the community structure of aquatic insects from semi-mountainous and mountainous rivers from the 6th Ecoregion that belongs to the territory of North Macedonia. The aim of this research is to fill the gaps for barcoding the aquatic macroinvertebrates from the Balkan Peninsula and check if the existing barcode library could provide improved identifications for the specimens that were not taxonomically determined to the lowest level possible. We analyzed 95 specimens from which total DNA was extracted and the COI barcode region amplified and sequenced. The taxa were selected from 20 different localities of the territory of western part of North Macedonia. The selected specimens were not determined to species-level in order to test the efficiency of the DNA barcoding methodology and what is missing in the DNA barcoding data library. From the result from one plate (95 specimens) we obtained: 16 samples without barodes, or failed and 10 samples did not have a match in the BOLD database. In the remining 69 samples, three were misidentified. In the total of 69 barcoded species new for the fauna of North Macedonia, 11 are mayflies: Baetis melanonyx, Ecdyonurus vitoshensis, E. macani; stonefly Isoperla vjose; and caddisflies: Agapetus delicatulus, Athripsodes bilineatus, Glossosoma klotho, Lepidostoma basale, Helicopsyche bacescui, Tinodes unicolor and Odontocerum hellenicum. We have also four rarely found species: Zwicknia bifrons, Drussus tenellus, Hydropsyche botosaneanui and Hydropsyche bulbifera, and one species without barcode available as Ecdyonurus sp. SK2 (potential new species). We found 83% efficiency of DNA barcoding, where some samples failed or were with low or medium quality for some specimens, as for the representatives from the genera Baetis, Oxietyra and Rhyacophila. In conclusion we can confirm that 10 of the selected vouchers need to be further identified by morphology and to be added in the BOLD barcode library, and maybe we'll have the possibility to describe a new species as well.

The genus Liljeborgia in the Mediterranean Sea, with the description of a new species (Crustacea: Amphipoda: Liljeborgiidae)

Zootaxa ◽  
2012 ◽  
Vol 3310 (1) ◽  
pp. 51 ◽  
Author(s):  
CÉDRIC D'UDEKEM D'ACOZ
Keyword(s):  
New Species ◽  
Mediterranean Sea ◽  
Identification Key ◽  
Adult Males ◽  
Outer Plate ◽  
Mandibular Palp ◽  
Amphipod Crustacean ◽  
Distal Spine ◽  
The Mediterranean ◽  
A New Species

A new amphipod crustacean, Liljeborgia clytaemnestra sp. nov., is described based on specimens from Malta andthe Bay of Naples. It is quite similar to the sympatric L. dellavallei Stebbing, 1906, but it has narrower and moreregular-sized spines on the propodus of pereiopods 3–4. The longest spine on the dorsolateral border of the pedun-cle of uropod 1 is not strongly elongate in adult males, as in L. dellavallei. The apical spines on the lobes of the tel-son are much longer than in L. dellavallei. L. clytaemnestra sp. nov. is actually more similar to two northeasternAtlantic species, the British L. pallida (Spence Bate, 1857) and the Scandinavian L. brevicornis (Bruzelius, 1859)than to the Mediterranean L. dellavallei. In L. clytaemnestra sp. nov., article 2 of the mandibular palp has setae ondistal third, whilst setae are restricted to tip in the two other species. Article 3 of the mandibular palp is also longerin L. clytaemnestra sp. nov. than in the two Atlantic species. The spines of the outer plate of the maxilliped are lon-ger in L. clytaemnestra sp. nov. than in the two other species. The most distal spine of the propodus of pereiopods3–4 is reduced in L. clytaemnestra sp. nov. and L. brevicornis, but not in L. pallida. The serration of the posteriorborder of the basis of pereiopod 7 is much stronger in L. clytaemnestra sp. nov. than in the two other species.Finally, in L. clytaemnestra sp. nov., the spines of the lobes of the telson are longer than in L. pallida. A lectotypeis designated for L. dellavallei. The presence/absence of a posterodorsal tooth on pleonite 3 in L. dellavallei is dis-cussed. The validity of L. kinahani (Spence Bate, 1862) is questioned. An identification key is proposed for Mediterranean Liljeborgia species.

Lower Cambrian (Branchian) trilobites and biostratigraphy of the Hanford Brook Formation, southern New Brunswick

2000 ◽  
Vol 74 (5) ◽  
pp. 858-878 ◽  
Author(s):  
Stephen R. Westrop ◽  
Ed Landing
Keyword(s):  
New Species ◽  
Nova Scotia ◽  
North America ◽  
New Brunswick ◽  
Lower Cambrian ◽  
Early Cambrian ◽  
The West ◽  
Middle Cambrian ◽  
Sequence Stratigraphic ◽  
Two New Species

The Hanford Brook Formation, one of the classic Cambrian units of Avalonian North America, contains at least eight species of endemic trilobites, including Berabichia milleri Westrop n. sp., that are assigned to seven genera. The vertical succession of faunas is far more complex than has been recognized previously, with each member containing a lithofacies-specific assemblage. These are, in ascending order: a bradoriid-linguloid Association without trilobites in the nearshore St. Martin's Member, a Protolenus Association in dysaerobic siltstones and sandstones of the Somerset Street Member, and a Kingaspidoides-Berabichia Association in hummocky cross-stratified sandstones of the Long Island Member that overlie a parasequence boundary at Hanford Brook. Due to the breakdown of biogeographic barriers in the late Early Cambrian, two new species-based zones, the Protolenus elegans and Kingaspidoides cf. obliquoculatus zones, share trilobite genera with the Tissafinian Stage of Morocco. This generic similarity has been the basis for correlation of this upper Lower Cambrian interval on the Avalon continent with the West Gondwanan lowest Middle Cambrian. However, the clear facies control on the occurrence of genera in the Hanford Brook Formation and the presence of an abrupt faunal break and unconformity at the base of the Tissafinian in Morocco makes this correlation questionable. The Hanford Brook Formation may represent a late Early Cambrian interval unknown in Gondwana. Sequence-stratigraphic criteria even raise the possibility that the Protolenus Association is the biofacies equivalent of Callavia broeggeri Zone faunas of the Brigus Formation of Newfoundland, Nova Scotia and Massachusetts.

Sign in / Sign up

Export Citation Format

Share Document