Manifestaciones cardiovasculares y síndrome compartimental asociado a mordedura por Phoneutria spp: Reporte de un caso / Cardiovascular manifestations and compartment syndrome associated with bite by Phoneutria spp: case report / Manifestações cardiovasculares e síndrome compartimental associadas à mordida de Phoneutria spp: Relato de caso

Se describen las características sobre el phoneutrismo a propósito de un caso. El phoneutrismo es el término con el que se conoce al accidente ocasionado por la mordedura de la araña phoneutria spp, la cual tiene una relevancia clínica dada por las características tóxicas de su veneno. Se presenta un caso de mordedura de la araña phoneutria spp de un paciente atendido en un hospital de alta complejidad de la ciudad de Medellín, Colombia, con manifestaciones cardiovasculares y hallazgos compatibles con un síndrome compartimental, lo cual es inusual en este tipo de arañas, por lo que se necesitó vigilancia en unidad de alta dependencia y fasciotomía cutánea. En Colombia este tipo de accidentes no son de reporte obligatorio, por tanto existe un alto riesgo de subregistro. Lo llamativo de este caso está en las manifestaciones cardiovasculares y la presencia de síndrome compartimental que no se ha descrito en la literatura con este subespecie de arañas.

The characteristics of phoneutrism are described in relation to a case. Phoneutrism is the term with which the accident caused by the bite of the phoneutria spp spider is known, which has clinical relevance given by the toxic characteristics of its venom. We present a case of a bite by the phoneutria spp spider in a patient treated at a high-complexity hospital in the city of Medellín, Colombia, with cardiovascular manifestations and findings compatible with compartment syndrome, which is unusual in this type of spiders, and required surveillance in a high dependency unit and cutaneous fasciotomy. In Colombia reporting this type of accident is not mandatory; therefore, there is a high risk of underreporting. What is striking about this case is the cardiovascular manifestations and the presence of compartment syndrome that has not been described in the literatura with this genre of spiders.

As características do fonutrismo são descritas em um relatório de um caso. Fonutrismo é o termo usado para descrever o acidente causado pela mordida da aranha Phoneutria spp, que é clinicamente relevante devido às características tóxicas de seu veneno. Apresentamos um caso de mordida de aranha por uma aranha Phoneutria em um paciente tratado em um hospital de alta complexidade na cidade de Medellín, Colômbia, com manifestações cardiovasculares e achados compatíveis com a síndrome compartimental, o que é incomum neste tipo de aranha, exigindo vigilância em uma unidade de alta de-pendência e fasciotomia cutânea. Na Colômbia, este tipo de acidente não é obrigatório, portanto, há um alto risco de subnotificação. O que é impressionante neste caso são as manifestações cardiovasculares e a presença da síndrome compartimental, que não foi descrita na literatura com esta subespécie de aranha.

Comparative venomic profiles of three spiders of the genus Phoneutria

Abstract Background: Spider venoms induce different physio-pharmacological effects by binding with high affinity on molecular targets, therefore being of biotechnological interest. Some of these toxins, acting on different types of ion channels, have been identified in the venom of spiders of the genus Phoneutria, mainly from P. nigriventer. In spite of the pharmaceutical potential demonstrated by P. nigriventer toxins, there is limited information on molecules from venoms of the same genus, as their toxins remain poorly characterized. Understanding this diversity and clarifying the differences in the mechanisms of action of spider toxins is of great importance for establishing their true biotechnological potential. This prompted us to compare three different venoms of the Phoneutria genus: P. nigriventer (Pn-V), P. eickstedtae (Pe-V) and P. pertyi (Pp-V). Methods: Biochemical and functional comparison of the venoms were carried out by SDS-PAGE, HPLC, mass spectrometry, enzymatic activities and electrophysiological assays (whole-cell patch clamp). Results: The employed approach revealed that all three venoms had an overall similarity in their components, with only minor differences. The presence of a high number of similar proteins was evident, particularly toxins in the mass range of ~6.0 kDa. Hyaluronidase and proteolytic activities were detected in all venoms, in addition to isoforms of the toxins Tx1 and Tx2-6. All Tx1 isoforms blocked Nav1.6 ion currents, with slight differences. Conclusion: Our findings showed that Pn-V, Pe-V and Pp-V are highly similar concerning protein composition and enzymatic activities, containing isoforms of the same toxins sharing high sequence homology, with minor modifications. However, these structural and functional variations are very important for venom diversity. In addition, our findings will contribute to the comprehension of the molecular diversity of the venoms of the other species from Phoneutria genus, exposing their biotechnological potential as a source for searching for new active molecules.

Comparative venomic profiles of three spiders of the genus Phoneutria

Spider venoms induce different physio-pharmacological effects by binding with high affinity on molecular targets, therefore being of biotechnological interest. Some of these toxins, acting on different types of ion channels, have been identified in the venom of spiders of the genus Phoneutria, mainly from P. nigriventer. In spite of the pharmaceutical potential demonstrated by P. nigriventer toxins, there is limited information on molecules from venoms of the same genus, as their toxins remain poorly characterized. Understanding this diversity and clarifying the differences in the mechanisms of action of spider toxins is of great importance for establishing their true biotechnological potential. This prompted us to compare three different venoms of the Phoneutria genus: P. nigriventer (Pn-V), P. eickstedtae (Pe-V) and P. pertyi (Pp-V). Methods: Biochemical and functional comparison of the venoms were carried out by SDS-PAGE, HPLC, mass spectrometry, enzymatic activities and electrophysiological assays (whole-cell patch clamp). Results: The employed approach revealed that all three venoms had an overall similarity in their components, with only minor differences. The presence of a high number of similar proteins was evident, particularly toxins in the mass range of ~6.0 kDa. Hyaluronidase and proteolytic activities were detected in all venoms, in addition to isoforms of the toxins Tx1 and Tx2-6. All Tx1 isoforms blocked Nav1.6 ion currents, with slight differences. Conclusion: Our findings showed that Pn-V, Pe-V and Pp-V are highly similar concerning protein composition and enzymatic activities, containing isoforms of the same toxins sharing high sequence homology, with minor modifications. However, these structural and functional variations are very important for venom diversity. In addition, our findings will contribute to the comprehension of the molecular diversity of the venoms of the other species from Phoneutria genus, exposing their biotechnological potential as a source for searching for new active molecules.(AU)

Intravitreal injection of peptides PnPa11 and PnPa13, derivatives of Phoneutria nigriventer spider venom, prevents retinal damage

PnPa11 and PnPa13 are synthetic peptides derived from Phoneutria nigriventer spider venom, which display antinociceptive and neuroprotective properties. In this work, we evaluated the safety of intravitreal use and the neuroprotective effect of these peptides. Methods: The cytotoxicity and the antiangiogenic activity of these peptides were evaluated by the sulforhodamine-B method and chicken chorioallantoic membrane (CAM) assay, respectively. The in vivo safety was analyzed in Wistar rats that were intravitreally injected with different doses (0.50; 1.25; 2.50; 3.75 and 5.00 µg/mL) of these peptides (right eye, n = 6). The retinal function was assessed by electroretinography exams (ERG), intraocular pressure (IOP), and histological analyzes. In order to investigate the neuroprotective effect, Wistar rats received intravitreal injections (right eye, n = 6) of peptides at 1.25 µg/mL and then were exposed to blue LED light. In addition, the visual function and the retinal microstructure were verified. Results: Cytotoxicity analyses demonstrated that the peptides did not present any toxicity over ARPE-19 (adult retinal pigmented epithelial) cell line and the antiangiogenic study highlighted that the peptides promoted the reduction of blood vessels. The intravitreal injection did not cause major changes, neither induced any irreversible damage. In the retinal degeneration assay, the ERG records demonstrated that the prior treatment with PnPa11 and PnPa13 protected the retina from damage. Morphological analyses confirmed the ERG findings. Immunoblotting analyses revealed that PnPa11 increased Erk1/2, NR2A, and NR2B retinal expression after the light stress model, but did not cause Akt1 activation, while PnPa13 prevented Erk1/2 and Akt1 dephosphorylation. Conclusions: The intraocular administration of these peptides was well tolerated and presented protective activity against retinal degeneration, suggesting the potential use of these peptides as neuroprotectors in the ophthalmological field.(AU)

Gene sequence analysis of toxins from the spider Phoneutria nigriventer revealed an intronless feature

Phoneutria nigriventer spider venom contains several cysteine-rich peptide toxins that act on different ion channels. Despite extensive studies on its venom and description of cDNA sequences of several of its toxin precursors, the gene structure of these toxins remains unknown. Methods: Genomic regions encoding the precursors of three previously characterized P. nigriventer toxins - PnTx1, PnTx2-5 and PnTx4(5-5) - were amplified by PCR using specific primers. PCR fragments were cloned and sequenced. Obtained sequences were compared with their corresponding cDNA sequences. Results: The size of PCR fragments obtained and sequences corresponding to genomic regions encoding for the toxin precursors matched their cDNA sequences. Conclusions: Despite a few nucleotide substitutions in the genomic regions encoding for the toxin precursors when compared with cDNA sequences, the results of the present work indicate that P. nigriventer toxins do not contain introns in their genes sequences.(AU)

Antinociceptive effect of PnTx4(5-5), a peptide from Phoneutria nigriventer spider venom, in rat models and the involvement of glutamatergic system

The venom of Phoneutria nigriventer spider is a source of numerous bioactive substances, including some toxins active in insects. An example is PnTx4(5-5) that shows a high insecticidal activity and no apparent toxicity to mice, although it inhibited NMDA-evoked currents in rat hippocampal neurons. In this work the analgesic activity of PnTx4(5-5) (renamed Γ-ctenitoxin-Pn1a) was investigated. Methods: The antinociceptive activity was evaluated using the paw pressure test in rats, after hyperalgesia induction with intraplantar injection of carrageenan or prostaglandin E2 (PGE2). Results: PnTx4(5-5), subcutaneously injected, was able to reduce the hyperalgesia induced by PGE2 in rat paw, demonstrating a systemic effect. PnTx4(5-5) administered in the plantar surface of the paw caused a peripheral and dose-dependent antinociceptive effect on hyperalgesia induced by carrageenan or PGE2. The hyperalgesic effect observed in these two pain models was completely reversed with 5 µg of PnTx4(5-5). Intraplantar administration of L-glutamate induced hyperalgesic effect that was significantly reverted by 5 μg of PnTx4(5-5) injection in rat paw. Conclusion: The antinociceptive effect for PnTx4(5-5) was demonstrated against different rat pain models, i.e. induced by PGE2, carrageenan or glutamate. We suggest that the antinociceptive effect of PnTx4(5-5) may be related to an inhibitory activity on the glutamatergic system.(AU)

Strong negative effect of diurnal rainfall on nocturnal activity of a wandering spider in Central Amazonia / Fuerte efecto negativo de las lluvias diurnas sobre la actividad nocturna de una araña errante en la Amazonía Central

Abstract: Rainfall is a common phenomenon in tropical forests influencing the behavior of many animals, however, little is known about its post-occurrence effect on behavior. We investigated the effect of diurnal rainfall on the nocturnal activity of the wandering spider species Phoneutria reidyi in nights without rainfall. Our study included two different areas and periods: a coconut plantation, located 108 km from the city of Manaus, containing an area of 80 x 80 m with 105 palms, from July 2014 to July 2015; and an area of 80 x 80 m in a rainforest fragment in Manaus, from December 2015 to March 2016. Each night, we counted active spiders (found outside refugees) searching carefully on the vegetation and on the ground using a headlamp between 19:00-00:00. Spiders were not captured to avoid the effect of disturbance, and were measured by approaching a caliper rule. We used an index to measure the diurnal rainfall effect (DRE) which was the percentage of change in the number of active spiders at night after a diurnal rainfall, considering 100 % the number of spiders active at the previous or following night, without previous rainfall during the day. This pairwise approach was used to avoid seasonal bias and included 15 pairs of nights in the plantation, and 15 pairs in the forest. A total of 2 243 active spiders were counted. The number of active spiders was always smaller in nights after diurnal rainfall, with a mean reduction of 53.4 %. The abundance of active spiders reduced significantly in both areas after a diurnal rainfall, and the effect was not different between areas. Larger spiders (mostly adults) reduced their activity (-62.8 %) more than smaller spiders (juveniles, -48.5 %). The amount of rainfall during the day had no effect on the nocturnal activity, i.e., the effect of strong diurnal rainfall is similar to the effect of a weak rainfall. The air temperature did not change significantly at night after diurnal rainfalls. The seasonality of rainfall apparently has a weak or absent effect on the abundance of P. reidyi, which was approximately constant through one year. We believe that the moisture, which may affect the chemical cues of prey, is the major cause to reduce the active spiders after rainfall, but we discuss other potential causes. Smaller individuals are probably more active under less favorable conditions due to the stronger need of food for growing. If this effect of rainfall on the behavior is common for wandering spiders in general, the rainfall events may have important consequences for the entire community of arthropods and small vertebrates. We suggest that studies based on relative abundance of spiders should take in account this potential effect in collection and analysis of data. Rev. Biol. Trop. 65 (3): 1152-1160. Epub 2017 September 01.

Resumen: La lluvia es un fenómeno común en los bosques tropicales que influye en el comportamiento de muchos animales, sin embargo, se sabe poco sobre su efecto posterior en el comportamiento. Se investigó el efecto de la lluvia diurna sobre la actividad nocturna de la especie de araña errante Phoneutria reidyi en noches sin lluvia, durante un año en una plantación ubicada a 108 km de la ciudad de Manaus, con área de 80 x 80 m y 105 palmeras y durante cuatro meses en un área de 80 x 80 m en un fragmento de selva en Manaus. En cada noche entre 19:00 y 0:00, contamos a las arañas activas (encontradas fuera de refugios) buscando cuidadosamente en la vegetación y en el suelo, usando una linterna de cabeza. Las arañas no fueron capturadas para evitar el efecto de la alteración, y fueron medidas acercándo una regla de calibrar a ellas. Se utilizó un índice para medir el efecto de la lluvia diurna (ELD), que fue el porcentaje de cambio en el número de arañas activas en una noche después de una lluvia diurna considerando el 100 % el número de arañas activas en la noche anterior o siguiente, sin lluvia durante el día. Este enfoque pareado se utilizó para evitar sesgo estacional e incluyó 15 pares de noches en la plantación y 15 pares en la selva. Se contó un total de 2 243 arañas activas. El número de arañas activas fue siempre menor en las noches después de la lluvia diurna, con una reducción media del 53.4 %. La abundancia de arañas activas se redujo significativamente en ambas áreas después de una lluvia diurna, y el efecto no fue diferente entre las áreas. Las arañas mayores (en su mayoría adultos) redujeron su actividad (-62.8 %) más que las arañas menores (juveniles, -48.5 %). La cantidad de lluvia durante el día no tuvo efecto sobre la actividad nocturna, i. e., el efecto lluvias fuertes fue semejante al efecto de las débiles.La temperatura del aire no cambió significativamente en la noche después de lluvias diurnas. La variación de las lluvias durante el año parece tener un efecto débil o ausente en la abundancia de P. reidyi, que fue aproximadamente constante durante un año. Creemos que la humedad, que puede afectar las señales químicas de las presas, es la principal causa para reducir las arañas activas después de la lluvia, pero discutimos otras causas potenciales. Las arañas menores probablemente están más activas en condiciones menos favorables debido a la mayor necesidad de alimento para crecer. Si este efecto de la lluvia sobre el comportamiento es común para las arañas errantes, los eventos de lluvia pueden tener consecuencias importantes para toda la comunidad de artrópodos y pequeños vertebrados. Sugerimos que los estudios basados en la abundancia relativa de arañas deben tener en cuenta este efecto potencial en la recolecta y análisis de datos.

A spider derived peptide, PnPP-19, induces central antinociception mediated by opioid and cannabinoid systems

Background: Some peptides purified from the venom of the spider Phoneutria nigriventer have been identified as potential sources of drugs for pain treatment. In this study, we characterized the antinociceptive effect of the peptide PnPP-19 on the central nervous system and investigated the possible involvement of opioid and cannabinoid systems in its action mechanism. Methods: Nociceptive threshold to thermal stimulation was measured according to the tail-flick test in Swiss mice. All drugs were administered by the intracerebroventricular route.Results: PnPP-19 induced central antinociception in mice in the doses of 0.5 and 1 µg. The non-selective opioid receptor antagonist naloxone (2.5 and 5 µg), µ-opioid receptor antagonist clocinnamox (2 and 4 µg), δ-opioid receptor antagonist naltrindole (6 and 12 µg) and CB1 receptor antagonist AM251 (2 and 4 µg) partially inhibited the antinociceptive effect of PnPP-19 (1 µg). Additionally, the anandamide amidase inhibitor MAFP (0.2 µg), the anandamide uptake inhibitor VDM11 (4 µg) and the aminopeptidase inhibitor bestatin (20 µg) significantly enhanced the antinociception induced by a low dose of PnPP-19 (0.5 µg). In contrast, the κ-opioid receptor antagonist nor-binaltorphimine (10 µg and 20 µg) and the CB2 receptor antagonist AM630 (2 and 4 µg) do not appear to be involved in this effect. Conclusions: PnPP-19-induced central antinociception involves the activation of CB1 cannabinoid, µ- and δ-opioid receptors. Mobilization of endogenous opioids and cannabinoids might be required for the activation of those receptors, since inhibitors of endogenous substances potentiate the effect of PnPP-19. Our results contribute to elucidating the action of the peptide PnPP-19 in the antinociceptive pathway.(AU)

A spider derived peptide, PnPP-19, induces central antinociception mediated by opioid and cannabinoid systems

Some peptides purified from the venom of the spider Phoneutria nigriventer have been identified as potential sources of drugs for pain treatment. In this study, we characterized the antinociceptive effect of the peptide PnPP-19 on the central nervous system and investigated the possible involvement of opioid and cannabinoid systems in its action mechanism. Methods Nociceptive threshold to thermal stimulation was measured according to the tail-flick test in Swiss mice. All drugs were administered by the intracerebroventricular route. Results PnPP-19 induced central antinociception in mice in the doses of 0.5 and 1 g. The non-selective opioid receptor antagonist naloxone (2.5 and 5 g), -opioid receptor antagonist clocinnamox (2 and 4 g), -opioid receptor antagonist naltrindole (6 and 12 g) and CB1 receptor antagonist AM251 (2 and 4 g) partially inhibited the antinociceptive effect of PnPP-19 (1 g). Additionally, the anandamide amidase inhibitor MAFP (0.2 g), the anandamide uptake inhibitor VDM11 (4 g) and the aminopeptidase inhibitor bestatin (20 g) significantly enhanced the antinociception induced by a low dose of PnPP-19 (0.5 g). In contrast, the -opioid receptor antagonist nor-binaltorphimine (10 g and 20 g) and the CB2 receptor antagonist AM630 (2 and 4 g) do not appear to be involved in this effect. Conclusions PnPP-19-induced central antinociception involves the activation of CB1 cannabinoid, - and -opioid receptors. Mobilization of endogenous opioids and cannabinoids might be required for the activation of those receptors, since inhibitors of endogenous substances potentiate the effect of PnPP-19. Our results contribute to elucidating the action of the peptide PnPP-19 in the antinociceptive pathway.

The History of Venomous Spider Identification, Venom Extraction Methods and Antivenom Production: a Long Journey at the Butantan Institute, São Paulo, Brazil

The article provides a historical report on venomous spider identification, venom obtainment methods and serum production at the Butantan Institute, São Paulo, Brazil. It is based on literature and personnal experience during the last 50 years. This result is the discovery that the real species causing potential severe human accidents were the spiders of the genus Loxosceles and Phoneutria.(AU)

The history of venomous spider identification, venom extraction methods and antivenom production: a long journey at the Butantan Institute, São Paulo, Brazil

The article provides a historical report on venomous spider identification, venom obtainment methods and serum production at the Butantan Institute, São Paulo, Brazil. It is based on literature and personnal experience during the last 50 years. This result is the discovery that the real species causing potential severe human accidents were the spiders of the genus Loxosceles and Phoneutria.

Expressão do fator de crescimento endotelial vascular (VEGF) e seus receptores Flt-1 e Flk-1 após envenenamento pela aranha Phoneutria nigriventer em ratos / Expression of vascular endothelial growth factor (VEGF) and its receptors Flt-1 and Flk-1 after envenoming by Phoneutria nigriventer spider in rats

O fator de crescimento endotelial vascular (VEGF), o principal regulador da angiogênese e da permeabilidade vascular, foi recentemente reconhecido como neurotrófico, neurogênico e neuroprotetor, sendo, portanto, regulado positivamente em muitos processos neuropatológicos. Neste modelo experimental de quebra da barreira hematoencefálica (BHE) pelo veneno da aranha Phoneutria nigriventer (PNV), a expressão do VEGF e seus receptores tirosina-quinase, Flt-1 e Flk-1 e de seus RNAs mensageiros foi investigada no hipocampo e cerebelo de ratos Wistar (Rattus norvegicus) por imunohistoquímica (IHQ), western blotting (WB) e reação em cadeia da polimerase em tempo real (qPCR). Paralelamente, a integridade da BHE foi avaliada através da expressão das proteínas da via paracelular, Ocludina e β-catenina, e da principal proteína da membrana basal, a Laminina, que estão presentes no endotélio na interface sangue-cérebro. O estudo foi realizado em ratos de 14 dias (neonatos) e de 8-10 semanas (adultos jovens) para avaliar diferenças em função da idade na funcionalidade da BHE e na possível mediação dos efeitos neurotóxicos do PNV pelo VEGF. A via escolhida para administração de PNV (1,7 mg/kg em 0,5ml de salina 0,9%) foi intraperitoneal, devido sua administração mais favorável nos animais neonatos. Os tempos de 2, 5 e 24 horas após a administração de PNV visaram investigar a expressão das proteínas, RNAs mensageiros e uma possível mediação pelo VEGF na fase aguda do envenenamento. A administração do PNV provocou sinais imediatos de intoxicação nos animais, os quais foram mais severos e imediatos nos neonatos do que nos adultos.

Vascular endothelial growth factor (VEGF), a major regulator of developmental angiogenesis and vascular permeability, was recently recognized as neurotrophic, neurogenic and neuroprotector, hence being upregulated in many neuropathological processes. In this experimental model of blood brain barrier (BBB) breakdown by the Phoneutria nigriventer spider venom (PNV), the expression of VEGF and its receptor tyrosine kinases, Flt-1 and Flk-1 and their mRNAs was investigated in the hippocampus and cerebellum of Wistar rats (Rattus norvegicus) by immunohistochemistry (IHC), western blotting (WB) and real time polymerase chain reaction (qPCR). Simultaneously, the BBB integrity was assessed through expression of paracellular pathway proteins, β- catenin and Occludin, and the main basement membrane protein, Laminin, which are present in the endothelium blood-brain interface. The study was performed in rats by 14 days (neonates) and 8-10 weeks (young adults) to assess differences related to age in the BBB functionality and the possible mediation of the PNV neurotoxic effects by VEGF. The via chosen for PNV administration (1.7 mg/kg in 0.5 ml of 0.9% saline) was intraperitoneally, due to more favorable application in neonate animals. The times of 2, 5 and 24 hours after PNV administration aimed to investigate the expression of proteins, mRNAs, and possible mediation by VEGF in acute envenomation. The PNV administration provoked immediate signs of intoxication in animals, which were more severe and immediate in neonates than in adults. In hippocampus, the WB data showed increased expression of VEGF, Flt-1 and Flk-1 and their mRNAs, which were concomitant with the development of perivascular edema, and decreased expression of Occludin, β-catenin and Laminin. IHC data show that VEGF immunoreactivity occurred in the bodies and dendrites of pyramidal neurons in the subfield CA1, CA2, CA3 and dentate gyrus of the hippocampus, in contrast with nuclear staining of Flt-1 and Flk-1.

Biodistribution studies of bee venom and spider toxin using radiotracers

The use of radiotracers allows the understanding of the bioavailability process, biodistribution, and kinetics of any molecule labelled with an isotope, which does not alter the molecule's biological properties. In this work, technetium-99m and iodine-125 were chosen as radiotracers for biodistribution studies in mice using bee (Apis mellifera) venom and a toxin (PnTX2-6) from the Brazilian "armed" spider (Phoneutria nigriventer) venom. Incorporated radioactivity was measured in the blood, brain, heart, lung, liver, kidney, adrenal gland, spleen, stomach, testicle, intestine, muscle, and thyroid gland. Results provided the blood kinetic parameter, and different organs distribution rates.(AU)

Ampliação da distribuição geográfica de Phoneutria bahiensis Simó & Brescovit, 2001 (Ctenidae: Cteninae) no estado da Bahia, Brasil / x

Foram identificados quatro espécimes de P. bahiensis, decorrentes de um resgate de fauna realizado no município de Itapebi, extremo sul da Bahia. Este registro amplia a distribuição geográfica da espécie, visto que a literatura, até o momento, restringia a ocorrência da P. bahiensis apenas às cidades de Ilhéus, no sul da Bahia e Salvador.

Four specimens of Phoneutria bahiensis Simó & Brescovit 2001 were identified amongst material of a faunal rescue carried out in Itapebi county, southern Bahia. This record enhances the geographic distribution of the species, since to date, the literature restricts the occurrence of P. bahiensis only to the city of Ilhéus and Salvador.