Sexual behaviour of the blister beetle Epicauta atomaria (Germar), with remarks on the bionomics of Epicauta maculata species group (Meloidae: Meloinae: Epicautini)

2021 ◽  
pp. 1-10
Author(s):  
María P. Campos-Soldini ◽  
Leandro S. Wagner

Abstract The sexual behaviour of the blister beetle Epicauta atomaria (Germar) (Meloidae: Meloinae: Epicautini), a pest that affects diverse crops of economic importance in South America, was evaluated for the first time under laboratory conditions. Twelve pairs of E. atomaria adults were collected from low-lying roadsides adjacent to grazed areas in Diamante, Entre Ríos, Argentina. To describe the sexual behaviour of this species, the number of events and their duration within different courtship phases in E. atomaria males were compared. An ethogram was built, showing that males perform three different behaviours during courtship phases: the quiescent period, antennal rubbing, and mounting. Our results showed that, during courtship, the number of events and the time of the mounting were low and significantly lower compared to behaviours undertaken during the quiescent period and antennal rubbing. In conclusion, the courtship of E. atomaria was clearly dominated by the quiescent period and antennal rubbing. To date, this is the first study to investigate sexual behaviour in E. atomaria, providing a foundation for future phylogenetic studies.

2019 ◽  
Vol 189 (2) ◽  
pp. 657-669 ◽  
Author(s):  
Giovanne M Cidade ◽  
Daniel Fortier ◽  
Annie S Hsiou

Abstract Alligatoroidea is the most species-rich crocodylomorph clade of the Cenozoic of South America, with nearly all species belonging to the Caimaninae clade. However, the earliest records of Caimaninae in South America, which are from the Palaeocene, are based mostly on incomplete specimens, which increases the importance of detailed taxonomic and phylogenetic studies on these taxa. This paper offers a taxonomic and phylogenetic review of Necrosuchus ionensis, a caimanine species from the Salamanca Formation of the Palaeocene of Argentina. Necrosuchus ionensis is considered a valid species, albeit with a different diagnosis from that proposed by previous authors. The phylogenetic analysis shows, for the first time, that N. ionensis belongs to the derived Caimaninae clade Jacarea. However, a better understanding of the Jacarea clade is needed, and alternative placements for N. ionensis might be considered. Nevertheless, the placement of N. ionensis as a derived caimanine raises interesting perspectives on the early evolution and radiation of caimanines, which are thoroughly discussed in this paper together with other results obtained in this study, such as the recovery of the North American caimanines Bottosaurus and Tsoabichi as a clade.


Zootaxa ◽  
2017 ◽  
Vol 4338 (1) ◽  
pp. 51 ◽  
Author(s):  
DAMIÁN E. PÉREZ ◽  
CLAUDIA J. DEL RÍO

The systematics of the Family Carditidae is currently poorly elucidated. This paper reviews the Eocene to Pleistocene carditids from Patagonia and Entre Ríos Province (Argentina). Twelve species are described and illustrated and the presence of the genera Cyclocardia Conrad, Pleuromeris Conrad, Scalaricardita Sacco, Fasciculicardia Maxwell and Purpurocardia Maxwell in southern South America is discussed. The genus Scalaricardita is documented for the first time in South America. Two new genera, Darwinicardia gen. nov. and Kolmeris n. gen. are proposed for the species ‘Venericardia’ patagonica (Sowerby) and ‘V.’ tehuelchana (Ihering), respectively, and one new species, Cyclocardia dalek sp. nov., is described. 


Zootaxa ◽  
2019 ◽  
Vol 4711 (3) ◽  
pp. 545-560
Author(s):  
DIEGO RODRIGO DOLIBAINA ◽  
MIRNA MARTINS CASAGRANDE ◽  
ALEXANDRE SPECHT ◽  
OLAF HERMANN HENDRIK MIELKE ◽  
ALBERT LEGRAIN ◽  
...  

The rivorum species-group of the genus Leucania (Noctuidae: Noctuinae: Leucaniini) is circumscribed and taxonomically revised, with the inclusion of three species. New taxonomic hypotheses were achieved through the morphological analysis of about 250 specimens allied to the type material of L. rivorum Guenée, 1852; L. pampa Schaus, 1894, stat. rev.; and Neleucania multistria Köhler, 1947, stat. rev., the last two resurrected from synonymy with L. rivorum and Dargida lithophilus (Butler, 1882), respectively. Adult habitus and morphology of the genitalia support the transfer of Neleucania multistria to Leucania, comb. nov. Lectotypes for L. rivorum and L. pampa are designated to ensure nomenclatural stability and recognizability of these taxa. Additionally, the similar, rust-colored species Leucania chejela (Schaus, 1921) is compared with species of the rivorum species-group, and is recorded from South America for the first time. All species of the rivorum group are re-described, with high-resolution images of taxonomic characters of the adults (head, patagium, and male and female genitalia), and updated distributional maps presented. 


1982 ◽  
Vol 72 (1) ◽  
pp. 33-38 ◽  
Author(s):  
I. D. Gauld

AbstractA revised key is given to the Enicospilus antefurcalis (Szépl.) species-group, some species of which are parasites of Lepidoptera of economic importance, of the Afrotropical region. One Oriental species, E. laqueatus (End.), is recorded for the first time from Africa and two species, E. watshami sp. n. and E. polemus sp. n., are described.


Zootaxa ◽  
2011 ◽  
Vol 2824 (1) ◽  
pp. 21 ◽  
Author(s):  
MARÍA PAULA CAMPOS-SOLDINI ◽  
SERGIO ALBERTO ROIG-JUÑENT

The Epicauta vittata group are commonly known as striped blister beetles and was defined by previous authors to include 32 species, 18 from North America, Central America and northern South America, and 14 from southern South America. In the present revision we revised 22 species from South America, excluding the following southern South American species: E. borgmeieri Denier, 1935; E. floydwerneri Martínez, 1955; E. franciscana Denier, 1935; E. fulginosa (Oliver, 1795); E. purpureiceps (Berg, 1889); E. rutilifrons Borchmann, 1930; and E. zebra (Dohrn, 1876) because they do not have the diagnostic characters of the group. The species of the E. vittata group from southern South America are: E. bosqi Denier, 1935; E. clericalis (Berg, 1881); E. grammica (Fischer, 1827); E. leopardina (Haag-Rutemberg, 1880); E. luteolineata Pic, 1933; E. missionum (Berg, 1881); E. monachica (Berg, 1883); E. rutilifrons Borchmann, 1930; plus two more species E. excavata (Klug, 1825); and E. semivittata (Fairmaire, 1875) until now not included in other groups. We provide a complete diagnosis of the E. vittata group from southern South America, redescribing and illustrating all included species. Detailed descriptions and illustrations of female and male genitalia are presented for the first time for these species. Finally, we provide an identification key for the ten species presently included in the E. vittata group, and update the geographic distribution of each species.


2021 ◽  
Vol 750 ◽  
pp. 156-196
Author(s):  
Gleison Robson Desiderio ◽  
Ana Maria Pes ◽  
Vanderly Andrade-Souza ◽  
Neusa Hamada

The Smicridea (Smicridea) fasciatella species group occurs from the southwestern USA, throughout Central America, the Greater Antilles islands, and most of South America, except for the Chilean subregion. It is characterized by the phallic apparatus being a simple tube with eversible internal sclerites at the apex. The fasciatella group is composed of 61 species, of which only 11 occur in Brazil, mainly in the Atlantic Forest biome in the southeastern region. In order to reduce the Linnean and Wallacean shortfalls for the Smicridea Brazilian fauna, we diagnose, describe, and illustrate males of six new species in the fasciatella group: Smicridea (Smicridea) blahniki Desiderio, Pes & Hamada sp. nov., S. (Smicridea) brevitruncata Desiderio, Pes & Hamada sp. nov., S. (Smicridea) caaguara Desiderio, Pes & Hamada sp. nov., S. (Smicridea) ipiranga Desiderio, Pes & Hamada sp. nov., S. (Smicridea) jeaneae Desiderio, Pes & Hamada sp. nov., and S. (Smicridea) polyacantha Desiderio, Pes & Hamada sp. nov. Additionally, we provide distributional data for S. (Smicridea) albosignata Ulmer, 1907, S. (Smicridea) bivittata (Hagen, 1861), S. (Smicridea) erecta Flint, 1974, S. (Smicridea) obliqua Flint, 1974, S. (Smicridea) paranensis Flint, 1983, and S. (Smicridea) sattleri Denning & Sykora, 1968. The number of S. (Smicridea) species in Brazil increases from 21 to 27 and Smicridea is recorded from the states of Acre, Amapá, and Sergipe for the first time.


Zootaxa ◽  
2017 ◽  
Vol 4242 (3) ◽  
pp. 493 ◽  
Author(s):  
ANGELO B. M. MACHADO ◽  
DÉBORAH S. SOLDATI LACERDA

The genus Platystigma Kennedy, 1920 is revalidated based mainly on the third segment of the penis that is plate-like, whereas in the other Pseudostigmatidae it is a flagellum. Dijkstra et al (2014) have merged this family into the Coenagrionidae. However, we prefer to maintain the long-used name Pseudostigmatidae until more detailed phylogenetic studies with more sampling are done. Eight species are here considered in the genus, three of which are described as new: P. humaita, P. minimum and P. quadratum. The genus is divided in two species group, jocaste and quadratum, the latter studied here. The hitherto unknown male of P. martinezi (Machado 1985) is described for the first time. Evidence for exophytic oviposition is presented in at least one species of the genus. A key is provided for the species of the quadratum group. 


2017 ◽  
Vol 43 (2) ◽  
pp. 208 ◽  
Author(s):  
Daniele Cristine Hoffmann Schlesener ◽  
Jutiane Wollmann ◽  
Juliano De Bastos Pazini ◽  
Anderson Dionei Grützmacher ◽  
Flávio Roberto Mello Garcia

Drosophila suzukii (Diptera, Drosophilidae) is an exotic species, endemic to Asia and currently a pest to small and stone fruits in several countries of North America and Europe. It was detected in 2013 for the first time in South America, in the south of Brazil. Unlike most drosophilids, this species deserves special attention, because the females are capable of oviposit inside healthy fruits, rendering their sale and export prohibited. Despite the confirmed existence of this species in different states of Brazil, this insect is yet been to be given the pest status. Nevertheless, the mere presence of this species is enough to cause concern to producers of small fruits and to justify further investigation for it’s control, especially chemical control for a possible change in status. Therefore, the goal of this work was to evaluate, in laboratory, mortality of D. suzukii adults and ovicidal effect when exposed to different insecticides registered for species of the Tephritidae and Agromyzidae families in different cultures. The insecticides deltamethrin, dimethoate, spinosad, fenitrothion, phosmet, malathion, methidathion, and zeta-cypermethrin resulted in mortality to 100 % of the subjects three days after the treatment (DAT). Regarding the effects over eggs, it was  established that the insecticides fenitrothion, malathion, and methidathion deemed 100 % of the eggs not viable, followed by phosmet and diflubenzuron, which also caused elevated reduction in the eclosion of larvae two DAT.


2010 ◽  
Vol 42 (6) ◽  
pp. 727-737 ◽  
Author(s):  
David J. GALLOWAY

AbstractAspiciliopsis macrophthalma, Placopsis fusciduloides, P. gelidioides and P. tararuana are reported for the first time from southern South America. New records for 13 species of Placopsis in southern South America are reported, and a revised key to 22 species of Placopsis and A. macrophthalma in the region is given.


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