Parakari a New Genus of the Family Baetidae (Insecta: Ephemeroptera) from Guyana Highlands

Zootaxa ◽  
2011 ◽  
Vol 3032 (1) ◽  
pp. 47 ◽  
Author(s):  
CAROLINA NIETO ◽  
TOMÁŠ DERKA

Baetidae is one of the most diverse families of Ephemeroptera. In South America this family now encompasses 27 genera and more than 130 species. The Guyana region is known for its extraordinary diversity and high level of endemism, which is, above all, remarkable at the tops of the isolated flat-topped table mountains – tepuis. Recently various international speleological expeditions to Churí-tepui explored the cave systems of this mountain. Here we describe a new genus of Baetidae recently found during the mentioned expeditions to Churí-tepui and Auyán-tepui. Parakari n. gen. can be distinguish from the other genera of this family, among other characters, in the nymphs by the absence of abdominal gills I, tarsal claws with subapical denticle larger than the others, right mandible with prostheca bifid and pectinate and with incisors positioned in obtuse angle to mola area, lingua with a tuft of setae, segment II of maxillary palpi with a concavity and a hole apically and segment II of labial palpi with a strong distomedial projection. In the adults the hind wings are absent and genitalia with segment II of forceps with a constriction, segment III elongate and long. Two new species are included in this genus; each one was collected at different tepui. A key and illustrations are included.

Zootaxa ◽  
2012 ◽  
Vol 3578 (1) ◽  
pp. 1 ◽  
Author(s):  
JUN-XIA ZHANG ◽  
WAYNE P. MADDISON

Twenty-two new species and one new genus of euophryine jumping spiders from Central America and South America aredescribed. The new genus is Ecuadattus (E. elongatus sp. nov., E. napoensis sp. nov., E. pichincha sp. nov. and the typespecies E. typicus sp. nov.). The other new species belong to the genera Amphidraus (A. complexus sp. nov.), Belliena (B.ecuadorica sp. nov.), Chapoda (C. angusta sp. nov., C. fortuna sp. nov. and C. gitae sp. nov.), Ilargus (I. foliosus sp. nov.,I. galianoae sp. nov., I. macrocornis sp. nov., I. moronatigus sp. nov., I. pilleolus sp. nov. and I. serratus sp. nov.), Maeota(M. dorsalis sp. nov., M. flava sp. nov. and M. simoni sp. nov.), Soesilarishius (S. micaceus sp. nov. and S. ruizi sp. nov.)and Tylogonus (T. parvus sp. nov. and T. yanayacu sp. nov.). Diagnostic illustrations are provided for all new species. Photographs of living spiders are also provided for some new species.


2021 ◽  
Vol 740 ◽  
Author(s):  
Álvaro García-Herrero ◽  
Patricia Esquete ◽  
Marina R. Cunha

The Tanaidacea are ubiquitous and amongst the most abundant taxa in the deep sea. However, their diversity in submarine canyons remains largely unknown. Here, two new species and a new genus of Paratanaoidea are described. Paranarthrura cousteaui sp. nov. is distinguished by the combination of the following characters: post-cheliped sclerites not fused, presence of one seta in the maxilliped endite, one long midventral seta in cheliped, one penicillate seta in the basis of pereopods 4–6, uropod endopod bi-articulated and uropod exopod shorter than endopod article 1. This species was found at the upper reaches of three Portuguese canyons, Cascais, Setúbal and Nazaré Canyons, and the adjacent open slope, between 897 and 1001 m water depths. Tirana vallis gen. et sp. nov. presents a combination of the characters that define the other two genera of Paranarthrurellidae, Paranarthrurella and Armatognathia, but also unique characters within the family: the antenna, cheliped and uropod are more elongate than the rest of the species; the pereopods 4–6 carpus spines reach at least half of the length of the propodus and the propodus of pereopods 4–6 have ramified subdistal spines. This species was found at the middle reaches of Setúbal Canyon (3214–3219 m water depth).


1983 ◽  
Vol 13 (1) ◽  
pp. 195-214 ◽  
Author(s):  
Vernon E. Thatcher ◽  
◽  
Walter A. Boeger

ABSTRACT Brasergasilus jaraquensis gen. et sp. nov. and B. anodus sp. nov. (Copepoda: Cyclopidea: Ergasilidae), gill parasites of Semaprochiiodus insignis (Schomburgk) and Anodus elongatus Spix, are described from the Amazon River. The new genus has only three pairs of swimming legs and in this respect is similar only to one species from New Zealand, Abergasilus amplexus Hewitt, 1978. The two genera also have in common a three-segmented prehensile antenna. Abergasilus, however, has the base of the second antennal segment developed into a massive spine which abutts against the claw-like third segment. The new genus completely lacks this fundamental structure. Aditionally, Abergasilus has six free thoracic segments while the new genus only has five. Abergasilinae Subfam. nov. is proposed for these two genera and their three species. Ergasilinae nom. nov. is provisionally defined and proposed to include the other 11 genera of the family. The type species of Brasergasilus gen. nov. is B. jaraquensis sp. nov. and it can be distinguished from B. anodus sp. nov. by the following characteristics: 1) The type species is larger and of a greenish coloration while B. anodus has fewer pigment granules that are of a bluish tint. 2) B. jaraquensis has a more slender second antenna and the most abrupt bend of the claw occurs distally; the second antenna of B. anodus is thicker and the abrupt bend Is found proximally. 3) The uropod of the type species has two setae and two small spines, while that of the other species has three setae and lacks spines. 4) The first leg of B. jaraquensis is laterally serrate while that of B. anodus is pectinate. The two species parasitize two different genera of host fish and are probably host specific.


Zootaxa ◽  
2012 ◽  
Vol 3523 (1) ◽  
pp. 1 ◽  
Author(s):  
CATARINA DE L. ARAÚJO-SILVA ◽  
KIM LARSEN

This study is based on the material collected from REVIZEE Program and under the Petrobrás oil-exploration programs.These collections revealed a number of representatives from the family Leptocheliidae in its broadest sense, with descrip-tions of one new genus, Makraleptochelia n. gen., and two new species, M. potiguara n. sp. and Intermedichelia jesserin. sp. The new genus appears to be closely related to Konarus-Parakonarus-Pseudoleptochelia complex of species anddiffers mainly in the extremely elongated habitus of the male. Intermedichelia jesseri is only the second recorded speciesof this genus and is separated from the other species by having two distal simple setae on the lateral projections of pere-onite 3, two distal simple setae on the maxilliped basis, one ventrodistal spiniform seta on the merus-carpus-propodus ofpereopod 3, and pereopods 4 and 5 propodus with one dorsodistal simple seta marginally longer than dactylus and unguis combined. Intermedichelia is here included in the family Leptocheliidae.


Zootaxa ◽  
2012 ◽  
Vol 3476 (1) ◽  
pp. 55 ◽  
Author(s):  
IORGU PETRESCU ◽  
TAPAS CHATTERJEE ◽  
NIKOLAOS V. SCHIZAS

Recent collections of the benthic macroand meiofauna associated with the mesophotic coral ecosystems of Puerto Rico haverevealed two new Cumacea from the family Nannastacidae. A new genus Cumellana and two new species, Cumellanacaribbica and Cumella alexandrinae are described herein. The new genus Cumellana can be distinguished from the other genera of the family Nannastacidae by having a long antennule and pereopod 2 with short terminal setae, equal in length.


Zootaxa ◽  
2018 ◽  
Vol 4369 (2) ◽  
pp. 253 ◽  
Author(s):  
MOHADESEH SADAT TAHAMI ◽  
RAFAEL MOLERO ◽  
MIQUEL GAJU ◽  
SABER SADEGHI

The first records of the family Nicoletiidae in Iran are given, based on material from subterranean habitats in Fars Province. Two new species are described, one belonging to a new genus of Atelurinae, Persiatelurina farsiana gen. n. sp. n., the other to the genus Lepidospora but representing a new subgenus, Brinckiletinia subgen. n., this new subgenus is close to the subgenus Brinckina, but lacks scales on the thorax. Both new taxa are compared with related species. Nipponatelurina caucasica Kaplin, 2016 is transferred to Persiatelurina caucasica n. comb. The new atelurine was collected in Momtaz and Khan Caves and Lepidospora (Brinckiletinia) malousjanica sp. n. was found in Malousjan Cave. An additional specimen of Lepidospora was collected in Momtaz Cave, and although its specific identity is not clear, it represents a third taxon belonging to the subgenus Brinckina. Data about the habitats of these subterranean Nicoletiidae are presented. 


Biologija ◽  
2017 ◽  
Vol 63 (1) ◽  
Author(s):  
Jonas R. Stonis ◽  
Arūnas Diškus ◽  
Brigita Paulavičiūtė ◽  
Alex K. Monro

We describe a  new genus Paratischeria Diškus & Stonis, gen. nov. and present the first observations of Urticaceae-feeding Tischeriidae species in South America and two new Urticaceaefeeding species (Paratischeria fasciata sp. nov. and P. ferruginea Diškus & Stonis, sp. nov. from the Andes of Bolivia and Ecuador). Together with the  African P. urticicolella (Ghesquière) (comb. nov.) from Congo, they are attributed to the newly designated ferruginea species group.


Parasitology ◽  
1920 ◽  
Vol 12 (2) ◽  
pp. 167-171 ◽  
Author(s):  
G. A. H. Bedford

The species herein described both belong to the family Menoponidae. One of these species, collected by me from a Waxbill (a passerine bird) at Onderstepoort, Pretoria, belongs to the genus Machaerilaemus Harrison, the other, taken from a Sandgrouse in the Rustenburg District, Transvaal, by Mr Powell, together with specimens of a species of Degeeriella, I am placing in a new genus, for which I propose the name Neomenopon. These two new species are extremely interesting, in that they both possess a chitinous framework extending backwards from the anterior margin of the head for the support of the mandibles, a structure previously only known to occur in the genus Eomenopon Harrison, which was established partly on account of this structure. A similar structure, however, also occurs in a small unidentified species of Menopon taken from a Little Banded Goshawk (Astur polyzonoides) at Onderstepoort. This species may eventually prove to be sufficiently distinct in other details from the type of Menopon to warrant the founding of a new genus for its reception.


Author(s):  
Carol Simon ◽  
Guillermo San Martín ◽  
Georgina Robinson

Two new species of South African Syllidae of the genusSyllisLamarck, 1818 are described.Syllis unzimasp. nov. is characterized by having unidentate compound chaetae with long spines on margin, a characteristic colour pattern and its reproduction by vivipary. Vivipary is not common among the polychaetes, but most representatives occur in the family Syllidae Grube, 1850 (in five otherSyllisspecies, two species ofDentatisyllisPerkins, 1981 and two species ofParexogoneMesnil & Caullery, 1818).Syllis unzimasp. nov. differs from the other viviparous species in having large broods (>44 juveniles) which develop synchronously. Development of the juveniles is similar to that of free-spawningSyllisspecies, but the appearance of the first pair of eyespots and the differentiation of the pharynx and proventricle occur later inS. unzima.Syllis amicarmillarissp. nov., is characterized by having an elongated body with relatively short, fusiform dorsal cirri and the presence of one or two pseudosimple chaeta on midbody parapodia by loss of blade and enlargement of shaft.Syllis unzimasp. nov. was found in high densities on culturedHolothuria scabraJaeger, 1833 with single specimens found on a culturedCrassostrea gigasThunberg, 1793 and on coralline algae, respectively, whileS. amicarmillariswas found mainly in sediment outside an abalone farm and less frequently on culturedHaliotis midaeLinnaeus, 1758. We discuss the possible benefits of the association withH. scabratoS. unzimasp. nov.


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