PDF superior A new species of Anathallis (Orchidaceae: Pleurothallidinae) from Brazil

A new species of Anathallis (Orchidaceae: Pleurothallidinae) from Brazil

A new species of Anathallis (Orchidaceae: Pleurothallidinae) from Brazil

Introduction. The genus Anathallis Barb.Rodr. (Orchidaceae) comprises about 116 species (Karremans 2016) of epiphytic orchids, mostly South American in distribution. According to Brazilian Flora 2020 (in construction), 92 species of Anathallis are found in Brazil, of which 76 are endemic. However, these figures include a number of species recently transferred to Stelis Sw. (Chiron, Guiard & van den Berg 2012, Karremans 2014) and to Lankesteriana Karremans (Karremans 2014, 2015). Following this narrower concept and including the new species described herein, some recent additions not yet listed in Brazilian Flora 2020 (Chiron, Guiard & Bolsanello 2013, Krahl et al. 2016) and excluding a number of obscure names and synonyms, the current accepted Anathallis names for the Brazilian flora is approximately 72 species.
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New species and nomenclatural notes in Pabstiella (Orchidaceae: Pleurothallidinae) from Brazil

New species and nomenclatural notes in Pabstiella (Orchidaceae: Pleurothallidinae) from Brazil

the type specimens of these two species during a recent visit to BR. Images of these specimens can be found in the website of Jardin botanique national de Belgique (http://www.br.fgov.be/RESEARCH/ COLLECTIONS/HERBARIUM/advancedsearch. php). One of them, the holotype of Pleurothallis deltoglossa, is shown in Figure 24 of the present article. In both cases, only one old, badly flattened flower remains in the type sheets of the specimens preserved at BR. While Pleurothallis acutidentata is most probably conspecific with the frequent and rather variable Pleurothallis fusca Lindl. [= Pabstiella fusca (Lindl.) Chiron & Xim.Bols.], Pleurothallis deltoglossa was shown to be a distinct species presenting a number of features that distinguishes it from other species now placed in the genus Pabstiella. Although similar in habit to several species related to Pabstiella fusca, its floral morphology is quite distinct. As described by Cogniaux (1907), the petals of Pleurothallis deltoglossa are obovate with rounded apex, finely denticulate above, and externally finely papillose, the lip, the most distinctive floral part, is narrowly triangular with entire margins, finely papillose above, and broadly trilobed at apex. The extant, flattened and apparently damaged lip is kept in a small separate envelope on the type sheet. The poor condition of this floral part precluded a proper examination, but it agrees in overall with Cogniaux’s description and especially with his sketches, which accompany the type specimen. This species has apparently never been recollected since its discovery and description over a century ago, and can be now extinct. However, it is also possible that it has just been confused in public and private collections with some of the several similarly endemic species to the Atlantic forest of southeast Brazil and may be just waiting to be rediscovered.
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New species of Eupalaestrus from Argentina (Araneae, Theraphosidae, Theraphosinae)

New species of Eupalaestrus from Argentina (Araneae, Theraphosidae, Theraphosinae)

ABSTRACT. A new species of Eupalaestrus Pocock, 1901 from northern Argentina is described and illustrated. Males and females of Eupalaestrus larae sp. nov. differ from those all other species of the genus by the color with distinct two parallel longitudinal stripes on the femora, patellae, tibiae and one longitudinal stripe reaching half of metatarsi; the presence of a thickened femur and tibia IV; a straight embolus of the male palpal bulb and retrolateral keel pronounced. Specimens were captured in Chaco province, inhabiting unlooded lat grasslands open areas inside forest in transitional Chaco eco-region.
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A new species of Aethiopella (Collembola: Neanuridae) from Nicaragua

A new species of Aethiopella (Collembola: Neanuridae) from Nicaragua

Holotype (male): Body length 0.68 mm; average (n= 9): 0.75 mm, range 0.6-0.9 mm. Color purplish. Body setae smooth and short, each surrounded by 5 or 6 granules. Cuticle granulose, and paratergites conspicuous on thoracic segments and from Abd. I to III. Ant. I with 7 setae, Ant. II with 11 setae, Ant. III and IV fused dorsally (Fig. 1), with 20-23 setae. Sensory organ of Ant. III with 2 small (2 μm) club-shaped sensilla under a cuticular fold, 2 guard sensilla (sgd and sgv) and ventral microsensillum (Fig. 2). Ant. IV with trilobed apical bulb, 7 sensilla, 1 microsensillum and subapical organite (Fig 1). Eyes 8+8, grouped on 5+3 in each side, with strongly pigmented eye patch. PAO moruliform, twice the size of 1 eye, with 20- 27 vesicles (Fig. 5). Mandible with 6 subequal small teeth (Fig. 6). Maxillae styliform, 2 fused lamella, with crochet
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A new species of Acestrocephalus (Characifonnes: Characidae) from Venezuela

A new species of Acestrocephalus (Characifonnes: Characidae) from Venezuela

Diagnosis. Acestrocephalus ginesi differs from all other Acestrocephalus species by the combination of the following characters: anal fin, iv + 25 -32 (iii + 27 in one specimen and v + 25 in other specimen); 63 -71 perforated scales on lateral line; 10 -12 scales aboye, 9 -12 below lateral line; 39 - 52 teeth on maxillary; 9 - 12 premaxillary teeth; 8 - 12 teeth in inner dentary row; 5 - 7 gill rakers on lower part of frrst gill arch; humeral blotch absent; dark blotch on caudal pedunde fin weak to absent; vestiges of small dark spot at origin of dorsal fin; tip of lower jaw with scattered dark melanophores, especially in small specimens (52 mm SL or less).
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A new species of Osteocephalus (Anura: Hylidae) from Guyana

A new species of Osteocephalus (Anura: Hylidae) from Guyana

mus can easily be distinguished from all other adult members of the genus by its smaller size. Among the smaller bodied Osteocephalus, the SVL of the smallest adult O. buckleyi known to us is 34.3 mm, the smallest O. cabrerai 38.9 mm, the smallest O. subtilis 35.8 mm (Martins and Cardoso 1987), the smallest O. oophagus 35.7 (Jungfer and Schiesari 1995), and the smallest O. sp. from Colombia 34.1 mm (member of the verruciger group; E. N. Smith and W. W. Lamar, unpublished). From all ot- her species of Osteocephalus, except O. subti- lis, the new species can also be distinguished by its large and bulgy eyes directed rostrally and by the black posterior area of its thighs. Osteocephalus exophthalmus is unique within the genus in possessing a Buff colored iris with a dark cross. In the mountains of Western Gu- yana O. exophthalmus could be confused with Tepuihyla talbergae, from which it differs in possessing large and bulgy eyes, more vomeri- ne teeth (21 vs. 12, total), ulnar tubercles, and lacking spiculate tubercles on dorsum, a bifid subarticular tubercle on Finger IV, a bifid and small palmar tubercle, large and numerous cloacal tubercles, and a pale subocular area instead of a well developed labial stripe.
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A new species of Alsobia (Gesneriaceae) from Chiapas, Mexico

A new species of Alsobia (Gesneriaceae) from Chiapas, Mexico

Paratipos. México. Chiapas. Municipio. Copainalá: cañada Tres Picos, 219 m, 21 de mayo de 2009, Nayely Martínez-Meléndez y Rubén Martínez-Camilo 2520, 2579 (HEM). Municipio de Ocozocoautla de Espinosa: camino de terracería al parque ecoturístico el Aguacero, zona de amortiguamiento de la Reserva de la Biosfera Selva El Ocote, 468 m, bosque tropical caducifolio, 15 de octubre de 2009, Nayely Martínez-Meléndez y Rubén Martínez- Camilo 2800 (HEM); río La Venta, el Aguacero, 750 m, 3 de agosto de 1989, Abisaí García-Mendoza y E. Martínez 4191 (MEXU); 13 km E, then N on road to Aguacero, along river, 630-700 m, Michael J. Huft, E. Cabrera y R. Torres 2246 (MEXU, MO); canyon at the head of the río La Venta at the Chorreadero near Derna, Dennis E. Breedlove 27390 (DS, MO, US), Dennis E. Breedlove y C. Burns 72620 (CAS). Municipio San Fernando: cañada Muñiz, paredes a orilla del río Grijalva, 432 m, 21 febrero 2008, J. A. Espinosa-Jiménez 656 (HEM). Cultivated: Smithsonian Botany Greenhouse accession 94-005, grown from the seeds collected as part of the gathering by Breedlove and Burns 72620, Laurence E. Skog 7688 (US).
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A new species of Actinopus (Mygalomorphae: Actinopodidae) from Bolivia

A new species of Actinopus (Mygalomorphae: Actinopodidae) from Bolivia

Description. Female (Holotype): total length: 20.16. carapace (Fig. 2A): length 7.68, width 7.68, with lateral marginal bristles until coxae III, 15 on each posterior margin. cephalic region: length 4.80, width 6.24, clypeus with 25 bristles, 2 between AME-ALE, 20 between PME-PME, 14 bristles behind each diad PME- PLE and 5-9 bristles between ALE-PLE. Fovea narrow: length 1.08, width 2.40. Eyes: diameters and interdistances: AME 0.20, ALE 0.52, PME 0.32, PLE 0.32, AME-ALE 1.00, PME-PLE 0.36, AME-PME 0.60, ALE-PLE 0.72, AME-AME 0.44, ocular group length 1.32, anterior width 3.72, 3.60 posterior width. chelicerae robust; length 4.68, width 2.88, with bands of internal dorsal bristles reaching the rastellum base. cheliceral apex with 12-15 recumbent and elongated bristles covering the base of the fang; dorsal region with superficial grooves. rastellum on a long projection with 11 marginal blunt cusps and 5 dorsal smaller ones. cheliceral furrow with 5 large promarginal teeth, 6 retromarginal Fig. 1. Label on the vial MAcn-Ar 778, probably
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A new species of Loeselia (Polemoniaceae) from Campeche, Mexico

A new species of Loeselia (Polemoniaceae) from Campeche, Mexico

Abstract: Loeselia campechiana Gutiérrez-Báez & R. Duno (Polemoniaceae) a new species of Polemoniaceae, from the state of Campeche, México, is described and illustrated. It is the first time that the family is recorded in the state. The new species is rare, it is only know from one locality with a median semi-deciduous forest. Is morphologically similar to L. glandulosa (Cav.) G. Don, but can be distinguished by having shorter bracts; corolla tube shorter and straight, filaments and style shorter.

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A new species of Microphallus (Trematoda: Microphallidae) from Venezuela

A new species of Microphallus (Trematoda: Microphallidae) from Venezuela

292-297 long by 217-308 wide with wall, found in abdominal muscles of crabs, U. rapax, most frequently in the joints of 1st and 2nd leg of abdomen. Cysts are easily rec- ognized by their distinctive external thick wall, which is composed by two layers, thick, trans- parent and striated outer wall and the fibrous inner wall. Metacercariae are immature in the cyst and constantly change form and shape due to body movement. Body spinose, oral sucker measures 40-69 long by 45-69 wide, acetabu- lum, 34-67 long by 45-80 wide. Prepharynx visible when metacercaria is moving. Pharynx muscular, 21-34 long by 16-21 wide, followed by slightly sinuos oesophagus, 40–80 long by 5-10 wide, bifurcates in front of acetabulum, almost post equatorial. Seminal vesicle trans- versely extended in between acetabulum and intestinal bifurcation. Prostatic glandular cells well developed. Seminal vesicle unites with genital muscular papilla via a small spermatic duct. Testes symmetrical, 40-94 long by 67- 107 wide, situated on both lateral side of acetabulum, with visible small groups of sperms. Ovary, 26-45 long by 59-88 wide, more developed than testes, is located on right side of acetabulum. Some uterus loops visible at posterior part of body. Vitelline follicles 7-8, sometime 6, underneath the testes. Excretory bladder V-shaped, containing granules of dif- ferent shapes, only 3 flame cells visible. Excretory pore terminal.
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A new species of Dipsas (Squamata: Colubridae) from Guyana

A new species of Dipsas (Squamata: Colubridae) from Guyana

Colour variation: The dorsal background colour varies from light brown to cream, and the blotches range from medium brown to very dark brown (Fig. 3). In most paratypes the majority of the dorsal blotches are symmetri- cally paired, but all exhibit a pattern of alter- nating blotches or asymmetry at some point along the body. Asymmetry is caused by a blotch being a different length from its corre- sponding opposite blotch. In some individuals the blotches change from symmetrical pairing to asymmetrical (alternating) and back again, along the length of the body, sometimes more than once. In all paratypes the blotches become progressively shorter posteriorly, from 6–7 to 4–5 scales in length. In all individuals the dor- sal and ventral background colour becomes progressively darker posteriorly, and the tail pattern is much less obvious than the body pat- tern. Peters (1960) found that older individuals exhibited less colour contrast, but there was no correlation between size and colour contrast among the four males of D. pakaraima.
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A new species of Dennstaedtia (Filicales: Dennstaedtiaceae) from México

A new species of Dennstaedtia (Filicales: Dennstaedtiaceae) from México

MATERIALES Y MÉTODOS La nueva especie ha sido así considerada después de comparar con especies afines en dis- tintos tratamientos taxonómicos para México, Centroamérica y Sudamérica (Smith 1981, Stol- ze 1981, Mickel y Beitel 1988, Mickel 1992, Moran 1995, Navarrete y Øllgaard 2000) y de revisar las colecciones de: Museo Nacional de Costa Rica (CR), Field Museum of Natural His- tory (F), Instituto Politécnico Nacional en Mé- xico (ENCB), Instituto Nacional de Biodiversi- dad (INB), Universidad Nacional Autónoma de México (MEXU) y Escuela Nacional de Estu- dios Profesionales Iztacala en México (IZTA).
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A contribution to the identification of charcoal origin in brazil i – Anatomical characterization of corymbia and eucalyptus

A contribution to the identification of charcoal origin in brazil i – Anatomical characterization of corymbia and eucalyptus

Charcoal is one of the main forestry products and Brazil is the world’s largest producer. Its production from native species is estimated at 30-35% of total output. One of the major problems of the iron and steel industry is charcoal consumption, especially in terms of environmental and social aspects. Therefore, the use of reforestation species must be increased. Considering most of the energy forests in Brazil are planted with eucalyptus, the present work aims to contribute to the identification of charcoal origin through anatomical analysis of Eucalyptus and Corymbia. The wood samples were carbonized in a muffle furnace during 7h to a maximum of 450ºC. Anatomical analysis was done according to IAWA Committee. We found few works with charcoal anatomy and the species analyzed were not characterized. The results on charcoal are very close to previous studies of wood anatomy. But, we recommend the comparison of materials of similar features, enhancing the visual acuity, particularities of each material and modifications that might happen. We believe that this analysis is an accurate tool to identify the source of charcoal and can help to guarantee the sustainability of the charcoal supply chain.
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New species of Euglossa from Mexico and Central America

New species of Euglossa from Mexico and Central America

Tongue moderately long, reaching sternum 11; mandibles biden tate; labrum wider than long, with prominent median keel and shorter, rounded, lateraJ keels; clypeus moderately protuberant, with prominent medial\ keel �nd rounded lateral keels, weakly concave between keels; outline of scutellum ·shallowly concave behind, scutellum about 2.5 times as wide as long, aboye strongly convex at each side with a prominent and rather deep median depression; sternal tufts small and widely separated; mid tibia: velvet area curved, gradually tapering distally, with a small but distinct anterior band of sparse hairs; posterior tuft oblong, anterior tuft nearly twice as long, somewhat reniform, divided into 2 tabes, with upper -Iobe about as large as posterior tuft, lower lobe subtriangular, with much longer, pale hairs; groove behind velvet area transversely striate; hind tibia large, rhomboid, convex distally.
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A new species of salamander (genus Bolitoglossa) from Costa Rica

A new species of salamander (genus Bolitoglossa) from Costa Rica

triton and study of previously unavailable ra­ diographs of the holotype of diminuta lead us to reassign the species to Bolitoglossa. The rela­ tively stout and expanded tenninal phalanges are like those of Bolitoglossa rather than resem­ bling the slender and more pointed elements typical of Nototriton. Furthennore , diminuta lacks a sublingual fold, the absence of which is a disgnostic feature of Bolitoglossa among the neotropical genera. The caudosacral region is typical of Bolitoglossa alpha (Wake and Lynch, 1 976) , with elongate and anteriorly swept transverse processes on the first caudal vertebra. Finally, the trunk vertebrae do not have the relatively compact, nearly opisthocoelous cen­ tra which are usually present in Nototriton.
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A new species of stingless bee (Meliponini) from Costa Rica

A new species of stingless bee (Meliponini) from Costa Rica

The species described below is especially interesting because it occupies an intermediate position between Moure's group T<?t1'agonisca ( MO U RE, 2 ) and Ihering's group Frieseomelitta (IHERING, 1 ) . The last group has been recently reestablished by MOURE (4) , who considers both groups as subgenera of Trigonf? .

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Lankesteriana, a new genus in Pleurothallidinae (Orchidaceae)

Lankesteriana, a new genus in Pleurothallidinae (Orchidaceae)

It must be stressed that the present work does not intend to be a molecularly based phylogenetic study of Anathallis and Lankesteriana. Instead, a systematic re-circumscription of those genera is proposed using an all evidence approach in which clear morphological patterns are correlated with available DNA evidence. The analyses of additional genetic regions and of a broader species set might refine the phylogenetic relationships among these species, however, as already evidenced in several earlier studies the basic phylogenetic reconstruction produced using a representative number of nrITS sequences is mostly found unchanged (Pridgeon & Chase 2001; Karremans 2010; Karremans et al. 2013), especially when the found clades have been thoroughly characterized morphologically (Luer 2002; Karremans 2010).
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A new species of Saccharosydne Kirkaldy from Argentina (Hemiptera: delphacidae)

A new species of Saccharosydne Kirkaldy from Argentina (Hemiptera: delphacidae)

Head (Fig 1 a-c) with eyes narrower than pronotum, slightly rounded in pro fi le; vertex medially longer than broad at base, lateral margins gradually converging towards fastigium, projecting beyond eyes almost one half of its length; area of basal compartment concave occupying approximately the basal third, submedian and lateral carinae well developed; stem and arms of Y- shaped carinae not always visible; median frontal carinae narrowly prominent in the in fl exion region continued on frons as a well developed single percurrent median carina. Frons narrower at fastigium, longer than the width at apex. Clypeus longer than wide at base; clypeus plus labrum almost as long as frons. Rostrum attaining anterior margin of middle coxae; subapical segment much longer than the apical one. Compound eyes in lateral view elongate. Antennae attaining frontoclypeal suture; scape and pedicel subcylindrical, slightly widened at apex; scape about as long as broad; pedicel length 2x width and about 3x length of scape; number and arrangement of sensory fi elds of pedicel equals 8 or 9 in groups of three rows.
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New nephropid and glypheid lobsters from the Mesozoic of Japan

New nephropid and glypheid lobsters from the Mesozoic of Japan

Remarks. Glyphea sp. most resembles G. georgiensis Taylor, 1979 from the Lower Cretaceous (Neocomian) of Antarctica in the shape of the hepatic groove and dorso- posterior linearly extended postcervical and branchiocardiac grooves. Some other species such as G. oculata Woods, 1957 from the Albian of Australia also resembles our specimen in having linearly elongated postcervical and branchiocardiac grooves. However, it should be noted that the present species has also similarities to species of Trachysoma Bell, 1858. Owing to its poor preservation, precise comparison should await for the discovery of additional material.
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A new species of Xantusia (Squamata: Xantusiidae) from Zacatecas, Mexico

A new species of Xantusia (Squamata: Xantusiidae) from Zacatecas, Mexico

The karyotype preparation and terminology follow Bezy (1972).. Xantusia sanchezi sp. Diagnosis.-Xantusia sanchezi differs from X. For the populations of X.. The type ser[r]

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