scholarly journals Morphology and biological notes of Macrosiagon octomaculata (Gerstaecker) triungulinid and a summary of the knowledge on immature stages of the genus (Ripiphoridae)

Author(s):  
Mônica Antunes Ulysséa ◽  
Fabiano Fabian Albertoni

Species of Macrosiagon Hentz are known to be wasp and bee parasitoids. Here, we present information on Macrosiagon octomaculata (Gerstaecker, 1855), including eggs and triungulinids, found on Paepalanthus polyanthus (Bong.) Sano (Eriocaulaceae) blooming in restinga habitat on Santa Catarina Island, South Brazil. This is the first record of an Eriocaulaceae species playing an important role in the Macrosiagon bionomics and the first accurate record of Ripiphoridae for southern Brazil, Santa Catarina state. In the study area, P. polyanthus attracted an inordinate number of insect species and one Thynnidae wasp was captured with a triungulinid on its wing. Eggs and triungulinids were also found on one plant of P. polyanthus and associated with M. octomaculata. We provide descriptions of the female reproductive organs as well as the morphology of the triungulinid of M. octomaculata. A detailed examination of the triungulinid revealed novelties that complement information from previous publications regarding the Ripiphoridae. We also compare triungulinids of M. octomaculata with those of other species, and provide a table summarizing comparative characters. Finally, we provide a table with current information on the recorded host species and immatures of Macrosiagon.

2008 ◽  
Vol 51 (5) ◽  
pp. 1065-1069 ◽  
Author(s):  
Ítalo Braga de Castro ◽  
Carlos Augusto Oliveira de Meirelles ◽  
Helena Matthews-Cascon ◽  
Cristina de Almeida Rocha-Barreira ◽  
Pablo Penchaszadeh ◽  
...  

Imposex is characterized by the development of masculine sexual organs in neogastropod females. Almost 120 mollusk species are known to present imposex when exposed to organic tin compounds as tributyltin (TBT) and triphenyltin (TPT). These compounds are used as biocide agents in antifouling paints to prevent the incrustations on boats. Five gastropod species are known to present imposex in Brazil: Stramonita haemastoma, Stramonita rustica, Leucozonia nassa, Cymathium parthenopeum and Olivancillaria vesica. This paper reports the first record of imposex observed in the endemic gastropod Voluta ebraea from Pacheco Beach, Northeast Brazil. Animals presenting imposex had regular female reproductive organs (capsule gland, oviduct and sperm-ingesting gland) and an abnormal penis. As imposex occurs in mollusks exposed to organotin compounds typically found at harbors, marinas, shipyards and areas with high shipping activities, probably contamination of Pacheco Beach is a consequence of a shipyard activity located in the nearest areas.


Zootaxa ◽  
2019 ◽  
Vol 4706 (3) ◽  
pp. 494-496
Author(s):  
JHOE REYES ◽  
DANIELA BINOW ◽  
ROGÉRIO T. VIANNA ◽  
SAMANTHA E. MARTINS

Within Dalyelliidae Graff, 1905, Gieysztoria Ruebush & Hayes, 1939 is the most widely distributed and speciose genus, members of which live in marine, brackish, or freshwater habitats (Van Steenkiste et al., 2012). Gieysztoria is composed by ~97 free-living species (Tyler et al. 2016), and species identification is mainly made on the male copulatory system, which has an armed penis (stylet) with different configurations of spines (Noreña et al., 2016). The stylet configuration of Gieysztoria species is traditionally split into two groups: Aequales (spines of similar shape and size) and Inaequales (spines of different shape and size) (Luther, 1955). In the neotropics, specimens of Gieysztoria belong to both the Aequales and Inaequales group   and are well represented (Damborenea et al., 2005; Noreña et al., 2003). According to Braccini et al. (2016, 2017), there are 16 species of Gieysztoria in Brazil, mainly distributed in the southern region. South Brazil harbours a mosaic of wetlands that are considered hot spots of biodiversity, including the Taim Ecological Station (ESEC Taim) protected area that was designated as a Ramsar site (Ramsar, 2017). In the present study, Gieysztoria falx Brusa, Damborenea & Noreña, 2003 is registered in the ESEC Taim, located in Rio Grande do Sul. It represents the first record of G. falx in Brazil. Illustrations and comments on stylet configuration are given.


Zootaxa ◽  
2009 ◽  
Vol 1973 (1) ◽  
pp. 61-68 ◽  
Author(s):  
KAN ZHUO ◽  
JINLING LIAO ◽  
RUQIANG CUI ◽  
YUZHONG LI

Two intersexes of Hirschmanniella shamimi are described and illustrated for the first time from soil samples around rice roots in Guangzhou, Guangdong Province, China. The two intersexes have developed female reproductive organs as well as rudimentary male sexual characters. A checklist of intersexes in plant nematodes is also given here.


Check List ◽  
2020 ◽  
Vol 16 (5) ◽  
pp. 1139-1142
Author(s):  
Jackson F. Preuss ◽  
Eduarda Posser ◽  
Laura B. Albrecht ◽  
Victor P.R. da Silva ◽  
Fernanda C. Bandiera

In this work, we describe the first occurrence record of the exotic species of deer Axis axis (Erxleben, 1777) from natural environments of the state of Santa Catarina, southern Brazil. The study provides information about the implications of the invasion of the region’s ecosystem, which is seen as a negative factor in the local community and represents a major conservation challenge.


2017 ◽  
Vol 4 (1) ◽  
Author(s):  
Mario Arthur Favretto ◽  
Emili Bortolon Dos Santos

There is a lack of knowledge regarding Lepidoptera species in altitudinal grassland areas, especially in the state of Santa Catarina, in southern Brazil. Here we report some records of Vanessa braziliensis (Moore, 1883) and Urbanus zagorus (Plötz, 1880) in high altitude areas. We have likely registered both the first record of U. zagorus for the state of Santa Catarina and the highest altitudinal record of V. braziliensis in Brazil.


Check List ◽  
2016 ◽  
Vol 12 (6) ◽  
pp. 2022
Author(s):  
Larissa Zanette-Silva ◽  
Douglas Lemos Farias ◽  
Ivo Rohling Ghizoni-Jr

Aparasphenodon bokermanni is a poorly known casque-headed tree frog found in São Paulo and Santa Catarina, southern Brazil. Here we provide two new records, one from Joinville, northeastern Santa Catarina, and the first record from Santa Catarina Island, Brazil, which extends to the south the range of the genus by approximately 150 km.


Scientifica ◽  
2014 ◽  
Vol 2014 ◽  
pp. 1-16
Author(s):  
Hélio Augusto Alves Fracasso ◽  
Joaquim Olinto Branco ◽  
Márcio Amorim Efe ◽  
João Pedro Barreiros

In this work, we intend to describe the reproductive dynamics ofSterna hirundinaceain an island from South Brazil. We studied the reproductive biology of this species in its natural environment and provide data on their growth, survival, and reproductive success in Ilha dos Cardos, Santa Catarina, South Brazil. Samplings were carried out daily on the island throughout the reproductive seasons of 2003, 2005, and 2006 and the different stages of development of the chicks were characterized according to age, length of the beak, and plumage characteristics. We provide a basic equationLm=167.91 (1-e-0.062t--0.23)to determine the approximate age of individuals using their body mass. The main cause of chick mortality on the island was natural (63.17% in 2003, 81.41% in 2005, and 79.96% in 2006), whereas predation contributed to mortality in a proportion of 38.83% in 2003, 18.59% in 2005, and 20.04% in 2006. The absence in the area of the chicks’ main predator, Kelp gull (Larus dominicanus), the large number of chicks that reached the final stages of development, and their reproductive success demonstrate that Ilha dos Cardos is an important breeding site for the species in southern Brazil.


Check List ◽  
2016 ◽  
Vol 12 (6) ◽  
pp. 1990 ◽  
Author(s):  
Felipe Bittencourt ◽  
André L. De Gasper

Pogoniopsis is an endemic and myco-heterotrophic orchid genus with only two species in Brazil that can be found growing under dense canopy. Pogoniopsis schenckii is more widely distributed, with records in the states of Bahia, Minas Gerais, Paraná, Pernambuco, Rio de Janeiro, and São Paulo. Here we record P. schenckii for the first time in Santa Catarina state, southern Brazil, in a subtropical broadleaved forest, as well the genus Pogoniopsis itself, expanding its southern distribution limit. In addition, a description and a distribution map of the collected specimens are presented.


2007 ◽  
Vol 24 (4) ◽  
pp. 1188-1191 ◽  
Author(s):  
João M. D. Miranda ◽  
Maria F. M. Azevedo-Barros ◽  
Fernando C. Passos

The first record of Histiotus laephotis Thomas, 1916 from Brazil is reported here. An adult male was caught with a mist net in a barn located within an Araucaria pine forest in the municipality of Passos Maia, State of Santa Catarina, Southern Brazil (26º46'48"S and 52º03'34"W). This record extends the distribution of this species in South America. Morphological and taxonomic notes of this species are described as well.


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