Tricorythodes macuira (Ephemeroptera: Leptohyphidae), new species from Colombia

Zootaxa ◽  
2018 ◽  
Vol 4377 (3) ◽  
pp. 354 ◽  
Author(s):  
CRISTIAN E. GRANADOS MARTINEZ ◽  
LUCIMAR GOMES DIAS ◽  
CARLOS MOLINERI
Keyword(s):  
New Species ◽  
Maxillary Palp ◽  
Polar Cap ◽  
Double Row ◽  
Dorsal Extension

Tricorythodes macuira sp n. is described and illustrated based on nymphs of both sexes and eggs from Colombia. This species can be recognized by the following combination of characters: maxillary palp 2-segmented and small, pronotum with rounded anterolateral projection, pronotum and mesonotum with thick and long setae on margins, femora I and II with transverse row of long setae at dorsum, tarsal claws with marginal row of 5–8 denticles and subdistal double row of 4-2 + 1-2 submarginal denticles, subtriangular operculate gills shaded black on a basal stripe, ventralmost lamellae of gills III–V with dorsal extension very well developed, abdominal segments VII–IX with small posterolateral spines. Eggs with one polar cap, polygonal chorionic plates with elevated margins and long adhesive filaments near the uncapped pole. 

Revision of European and North African Folsomides Stach with special emphasis on the Canarian fauna (Collembola: Isotomidae)

1992 ◽  
Vol 23 (4) ◽  
pp. 453-473 ◽  
Author(s):  
Arne Fjellberg
Keyword(s):  
New Species ◽  
Canary Islands ◽  
Morphological Characters ◽  
Maxillary Palp ◽  
North African ◽  
African Species ◽  
Mouth Region ◽  
Generic Rank ◽  
Number Of Species ◽  
Narrow Definition

AbstractThe genus Folsomides Stach, 1922 is redefined and given a narrow definition based on a limited set of consistent morphological characters: Position and distribution of tergal macrosensilla, chaetotaxy of mouth region, tibiotarsi, ventral tube and furca. Eighteen new species are described from the Canary Islands: semiparvulus sp. n., xerophilus sp. n., vinosus sp. n., cumbrosus sp. n., unicus sp. n., terrus sp. n., pocosensillatus sp. n., nigrocellatus sp. n., teno sp. n., oromii sp. n., ononicolus sp. n., graminis sp. n., famarensis sp. n., pinicolus sp. n., intermedius sp. n., tonellus sp. n., supranubius sp. n. and analuisae sp. n. The following European/African species are redescribed: parvulus Stach, portucalensis Gama, angularis (Axelson), cf. petiti Delamare, lawrencei Gers & Deharveng, cf. zairensis Martynova, nanus Ellis and centralis (Denis). Highly discriminate species characters are found in maxillary palp, tibiotarsal chaetotaxy and distribution of tergal microsensilla. A number of species are removed from Folsomides, and Subisotoma Stach, 1947 is given generic rank.

A new species of Tricorythopsis Traver, 1958 (Ephemeroptera: Leptohyphidae) from Pará state, Brazil

Zootaxa ◽  
2021 ◽  
Vol 5023 (1) ◽  
pp. 131-141
Author(s):  
LAURA A. DE OLIVEIRA ◽  
JEANE M. C. DO NASCIMENTO ◽  
SHEYLA R. M. COUCEIRO
Keyword(s):  
New Species ◽  
Maxillary Palp ◽  
Labial Palp ◽  
Transversal Line ◽  
A New Species

A new species of Tricorythopsis is described, illustrated and diagnosed based on nymphs from Pará state, Brazil. Tricorythopsis similis sp. nov. is related to Tricorythopsis rondoniensis (Dias, Cruz & Ferreira) based on abdominal terga III–VII with acute tubercles medially located on posterior margins, and by the absence of the transversal line on operculate gill. However, the new species can be identified by the following combination of characteristics: general coloration yellowish brown, with blackish and purplish marks irregularly distributed; maxillary palp 1-segmented; segment II of labial palp shorter than segment I and longer than segment III; femora and tibiae with margins covered by long, pectinate setae; tarsal claws with 4 to 5 marginal denticles and 4+2 very small, submarginal denticles. This is the first species of Tricorythopsis recorded from Pará state.  

New species of Rivudiva Lugo-Ortiz & McCafferty (Ephemeroptera: Baetidae) with comments on R. minantenna Lugo-Ortiz & McCafferty and R. trichobasis Lugo-Ortiz & McCafferty

Zootaxa ◽  
2020 ◽  
Vol 4786 (1) ◽  
pp. 37-52
Author(s):  
F.F. SALLES ◽  
C. NIETO ◽  
P.V. CRUZ
Keyword(s):  
New Species ◽  
Maxillary Palp ◽  
Distal Margin ◽  
Espírito Santo ◽  
Two New Species ◽  
Northern Brazil ◽  
Espirito Santo

Based on nymphs collected in Espírito Santo and Amazonas, Southeastern and Northern Brazil, two new species of the genus Rivudiva Lugo-Ortiz & McCafferty, 1998 (Ephemeroptera: Baetidae) are described. Rivudiva inma sp. nov. shares several characteristics with R. minantenna Lugo-Ortiz & McCafferty, 1998, but can be distinguished by details of leg setation, such as length and shape of robust setae and presence of setae on trochanter. Rivudiva oonirikoperi sp. nov. is more similar to R. trichobasis Lugo-Ortiz & McCafferty, 1998, but can be separated by the absence of setae on scape and pedicel, shape of distal margin of labrum, and length of maxillary palp. New diagnoses and illustrations are provided for R. minantenna and R. trichobasis, as well as a key to the known nymphs of Rivudiva species. 

scholarly journals A clearly identifiable postlarva in the life cycle of a new species of Pliciloricus (Loricifera) from the deep sea of the Angola Basin

Zootaxa ◽  
2009 ◽  
Vol 2096 (1) ◽  
pp. 50-81 ◽  
Author(s):  
GUNNAR GAD
Keyword(s):  
New Species ◽  
Life Cycle ◽  
Deep Sea ◽  
Type I ◽  
Double Row ◽  
Body Regions ◽  
New Information ◽  
Two Phases ◽  
Distinguishing Features ◽  
A New Species

A newly discovered species of Pliciloricus from the deep sea of the Angola Basin (Namibia, Atlantic) seems to have two types of postlarvae in its life cycle. Type I is a simplified but clearly identifiable postlarval stage, the other type II consists only of a thin layer of cuticle as the remnant of a postlarva. Both types contain adults that have moulted from them. The simplified type I postlarva has a fully developed lorica with an ornamentation identical to that of the adult, but other body regions are reduced with only a few structures left. The discovery of this clearly identifiable postlarva is important, because it supports the conclusion that Pliciloricus-species originally moults from postlarval stages as well as other taxa of Loricifera. Furthermore, it could be concluded that the simple cuticle layer surrounding most adults found during their metamorphosis is the remnant of a postlarval stage. The life cycle of the new species seems to include two phases. After to the bisexual is a unisexual phase, represented by a simplified parthenogenetic adult stage which lacks most parts of the adult morphology. The adults of P. diva sp. n. differ from other species in having among others (1) a mouth cone with four strong cuticular bars plus eight primary oral ridges; (2) leaf-like clavoscalids which are very broad basally and narrow distally, and have more than 22 transverse cross walls; (3) a strongly sclerotized double-organ consisting of four rami; (4) large spinoscalids of second row shorter than clavoscalids, (5) short type B spinoscalids of fourth row with claw-tips and with a double row of five teeth as well as distally with a double row of minute denticles; (6) an anterior margin of the lorica with bicuspid protrusions and specific crescent-shaped ornamentations; (7) a midventral plica with five bar-like transversal strengthened ridges. Distinguishing features of the Higgins-larva are (1) short clavoscalids with broad second segments; (3) a collar with seven flosculi located in small pits; posterolateral setae being short but strong and pod-like. The study also revealed new information about the double-organ of the adult and the buccal structures of the Higgins-larva.

scholarly journals A new species of Simulium (Simulium) (Diptera: Simuliidae), with keys to S. striatum species-group from India

2019 ◽  
Vol 11 (5) ◽  
pp. 13573-13578
Author(s):  
Sankarappan Anbalagan ◽  
Suruliyandi Vijayan ◽  
Chellapandian Balachandran ◽  
Sundaram Dinakaran
Keyword(s):  
New Species ◽  
Species Group ◽  
Maxillary Palp ◽  
Male Larva ◽  
Basal Portion ◽  
A New Species

Simulium (Simulium) yanaense sp. nov. is described based on the male, larva, and pupa.  It is characterized by having a maxillary palp with a small sensory vesicle, and the subcosta and basal portion of the radius bare in the male; the gill with 10 short slender filaments and short common basal stalk in the pupa; and the thorax and abdomen without a pair of dorsolateral protuberances in the larva.  Keys are provided to the species of the S. striatum species group of the subgenus Simulium known from India. 

New species of bristletails of the family Machilidae (Archaeognatha) from Kazakhstan

2021 ◽  
pp. 435-445
Author(s):  
Vladimir Kaplin ◽  
Georgiy Shakula
Keyword(s):  
New Species ◽  
Body Shape ◽  
Compound Eye ◽  
Ventral Surface ◽  
Maxillary Palp ◽  
The Body ◽  
Compound Eyes ◽  
Labial Palp ◽  
The Family ◽  
One New Species

The fauna of bristletails of the family Machilidae in Kazakhstan currently includes one species of the genus Silvestrichiloides Mendes, 1990 and 13 species of the genus Allopsontus Silvestri, 1911. The present study describes one new species of the genus Silvestrichiloides (S. berkarensis Kaplin, sp. nov. from South Kazakhstan) and two new species of the genus Allopsontus (A. (Kaplinilis) nigrostriatus Kaplin, sp. nov. and A. (Machilanus) perfectus Kaplin, sp. nov. from Southeastern Kazakhstan). Silvestrichiloides berkarensis sp. nov. differs from the other species of this genus in the structure of antennal flagellum, apical palpomere of labial palp and ovipositor. Among species of the subgenus Kaplinilis Mendes, 1990, A. nigrostriatus sp. nov. belongs to a group of species characterized by numerous short chaetae on the ventral surface of the 5–7th palpomeres of the male maxillary palp and by the absence on the labial palp. This group includes two species: A. volgensis Kaplin, 1999 from Samara Region and A. smelyanskii Kaplin, 1999 from Orenbourg Region (both Russia). The new species differs from A. volgensis and A. smelyanskii in the length of the body and antenna, color of scales on the upper surface of the body, shape of the compound eye and paired ocellus, structure of the flagellum and apical palpomere of the male labial palp. The subgenus Machilanus Silvestri, 1934 is represented only by A. bitschi Wygodzinsky, 1962 from Afghanistan and A. perfectus sp. nov., which are characterized by numerous short chaetae on the ventral surface of the 2nd–7th palpomeres of the male maxillary palp. Allopsontus perfectus sp. nov. differs from A. bitschi in the shape of compound eyes, paired ocellus, structure of male labial palp and genitalia.

A new species of Ephoron Williamson, 1802 (Ephemeroptera: Polymitarcyidae) from Thailand

Zootaxa ◽  
2021 ◽  
Vol 4985 (3) ◽  
Author(s):  
CHOTIWUT TECHAKIJVEJ ◽  
NATTAWUT SAREEIN ◽  
JEONG MI HWANG ◽  
YEON JAE BAE ◽  
CHITCHOL PHALARAKSH
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Dna Barcode ◽  
Morphological Characteristics ◽  
Future Research ◽  
Polar Cap ◽  
The World ◽  
Frontal Process ◽  
New Species Description ◽  
A New Species

The genus Ephoron Williamson, 1802 is widely distributed around the world. In Thailand, only Ephoron indicus Pictet, 1843 was reported in 1961. In this study, a new Ephoron mayfly is described as Ephoron ookaewae sp. nov. In this new species description, the morphological characteristics of larvae and eggs in addition to adults are also shown in detail. Number of tubercles on mandibular tusks, and a median frontal process in larvae, distinguish Ephoron ookaewae sp. nov. from other Ephoron species. Their polar cap shape and a concave indentation in their eggs are also unusual. In addition, the mitochondrial DNA COI sequence data of the newly described Ephoron ookaewae sp. nov. is registered in GenBank. Registration of sequence data for the DNA barcode region of Ephoron mayflies inhabiting the Oriental region remains limited, however it will be useful for future research.

Review of the genus Hyrtanella (Ephemeroptera: Ephemerellidae)

Zootaxa ◽  
2004 ◽  
Vol 785 (1) ◽  
pp. 1 ◽  
Author(s):  
LUKE M. JACOBUS ◽  
MICHEL SARTORI
Keyword(s):  
New Species ◽  
Type Species ◽  
Southern India ◽  
Malay Peninsula ◽  
Internal Anatomy ◽  
Polar Cap ◽  
Northern Thailand ◽  
Species Descriptions

The genus Hyrtanella Allen and Edmunds (Ephemeroptera: Ephemerellidae) is distinguished from other Ephemerellinae by larvae that have fully operculate gills and single median spines on the posterior margins of abdominal terga 8 and 9. Eggs have one polar cap and a smooth chorion. Male adults are not known, and female alates cannot be assigned to species, based on present data. The genus probably is endemic to the island of Borneo, and it contains two species: H. christineae and H. pascalae, new species. Hyrtanella pascalae is described based on eggs, larvae, and one male subimago. The larva of H. pascalae is distinguished from H. christineae by its smaller size, blunt genal projections, and smooth forefemora. The male subimago has genital forceps segment 3 elongate.KEY WORDS: Hyrtanella, Ephemeroptera, Ephemerellidae, Ephemerellinae, Hyrtanella christineae, Hyrtanella pascalae, new species, descriptions, Borneo, misidentificationsThe genus Hyrtanella Allen and Edmunds (Ephemeroptera: Ephemerellidae) was described for some distinctive larvae and female adults from the island of Borneo (Allen & Edmunds 1976). The monospecific genus (type species: H. christineae Allen and Edmunds) has been classified in the monogeneric tribe Hyrtanellini (Allen 1980; Allen 1984) of the subfamily Ephemerellinae (McCafferty & Wang 2000). Landa et al. (1982) and Landa and Sold n (1985) provided details about the internal anatomy of Hyrtanella. Edmunds and Polhemus (1990) reported the genus from the Malay Peninsula, northern Thailand, and southern India, but these records probably are based on misidentifications.

Ultrastructural and molecular studies of Microgemma carolinus n. sp. (Microsporidia), a parasite of the fish Trachinotus carolinus (Carangidae) in Southern Brazil

Parasitology ◽  
2012 ◽  
Vol 139 (13) ◽  
pp. 1720-1728 ◽  
Author(s):  
G. CASAL ◽  
E. MATOS ◽  
P. GARCIA ◽  
S. AL-QURAISHY ◽  
C. AZEVEDO
Keyword(s):  
New Species ◽  
Developmental Stages ◽  
Polar Filament ◽  
Central Position ◽  
Rrna Gene ◽  
Marine Teleost ◽  
Double Row ◽  
Phylogenetic Studies ◽  
A New Species ◽  
Spore Length

SUMMARYA new species of Microsporidia Microgemma carolinus n. sp. found in the marine teleost Trachinotus carolinus collected in Florianópolis, Brazil was described based on light, ultrastructural and phylogenetic studies. This parasite developed in the liver forming whitish xenomas that contained different developmental stages with monokaryotic nuclei. The periphery of the xenoma presented some vacuolization and possessed several small projections in the membrane. The mature spores, measuring 3·8 ± 0·4 μm in length and 2·4 ± 0·4 μm in width, were slightly pyriform to ellipsoidal and had rounded ends. The polaroplast was bipartite and the isofilar polar filament was coiled with 8 – 9 turns in a single or double row at the posterior end of the spore. The nucleus was voluminous and in a central position, measuring ∼0·9 μm in diameter. A large posterior vacuole appeared as a pale area, occupying about a third of the spore length. The SSU rRNA gene was sequenced and analysed using maximum parsimony, maximum likelihood and neighbour-joining methods. This study allowed us to conclude that this was a new species of the genus Microgemma, being the first description of this genus from among South America fauna.

Tricorythodes tragoedia sp. nov. (Ephemeroptera: Leptohyphidae), a new species from Rio Doce and surrounding areas, southeastern Brazil

Zootaxa ◽  
2017 ◽  
Vol 4341 (4) ◽  
pp. 554 ◽  
Author(s):  
PAULA MALAQUIAS SOUTO ◽  
KAMILA BATISTA ANGELI ◽  
FREDERICO FALCÃO SALLES
Keyword(s):  
New Species ◽  
Maxillary Palp ◽  
Large Rivers ◽  
Southeastern Brazil ◽  
Apical Seta ◽  
Surrounding Areas ◽  
Doce River ◽  
A New Species

A new species of Tricorythodes Ulmer (Ephemeroptera: Leptohyphidae) is described and illustrated based on nymphs and adults from the Doce River and surrounding areas in southeastern Brazil. Tricorythodes tragoedia sp. nov. is related to T. arequita Traver, T. mirca Molineri and T. sallesi Dias, Cabette & De Sousa, but its nymphs can be distinguished from these species by having a three-segmented maxillary palp with apical seta and one pair of submarginal denticles on the tarsal claws. Nymphs were collected from small to large rivers at altitudes of less than 100 m where they inhabit submersed substrates in areas with slow current. Nymphs and adults were found throughout the year. 

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