Latest Articles from Journal of Orthoptera Research Latest 13 Articles from Journal of Orthoptera Research https://jor.pensoft.net/ Thu, 28 Mar 2024 15:09:37 +0200 Pensoft FeedCreator https://jor.pensoft.net/i/logo.jpg Latest Articles from Journal of Orthoptera Research https://jor.pensoft.net/ Parasitoid flies (Diptera, Tachinidae) in true crickets (Orthoptera, Grylloidea): New host records from Brazil, identification key to parasitoids, and revision of host-parasitoid interactions https://jor.pensoft.net/article/108456/ Journal of Orthoptera Research 33(1): 41-58

DOI: 10.3897/jor.33.108456

Authors: Filipe Macedo Gudin, Lucas Denadai de Campos, Darlan Rutz Redü, Francisco de Assis Ganeo de Mello

Abstract: True crickets (Orthoptera, Grylloidea) are often parasitized by tachinid flies (Diptera, Tachinidae). However, the diversity of these parasitoids and their oviposition strategies remain unclear. Although some flies are specialized in locating crickets by their calling songs, such as the phonotactic fly Ormia ochracea (Bigot, 1889), a large portion of the tachinids that attack true crickets show different host search strategies and are adapted to parasitize other orthopteroid insects as well. However, these parasitoids have a complex and challenging taxonomy that precludes further improvement in the understanding of Tachinidae-Orthoptera interactions. Here, we described and illustrated seven new host records in Gryllidae and Phalangopsidae species from Brazil, including notes on the diagnostic characters of each parasitoid and host. An illustrated identification key to Tachinidae genera recorded in Grylloidea is also provided. Finally, all published records of Tachinidae parasitism in true crickets were revised and are presented in an annotated catalog in order to understand the host range and different oviposition strategies of each parasitoid lineage.

HTML

XML

PDF

]]>
Research Article Mon, 22 Jan 2024 14:01:30 +0200
A replacement name for Bostra Stål (Insecta, Phasmida, Diapheromeridae), a junior homonym of Bostra Walker (Insecta, Lepidoptera, Pyralidae) https://jor.pensoft.net/article/97047/ Journal of Orthoptera Research 32(2): 149-152

DOI: 10.3897/jor.32.97047

Authors: Martin H. Villet

Abstract: Bostra Stål (Phasmida, Diapheromeridae) is a junior homonym of Bostra Walker (Lepidoptera, Pyralidae). The replacement name Bostranova Villet nomen nov. is proposed for Bostra Stål, and new combinations are proposed for the species-group names currently included in that phasmid genus.

HTML

XML

PDF

]]>
Short Communication Fri, 8 Sep 2023 08:59:49 +0300
First record of Myrmecophilus (Myrmecophilus) quadrispinus for Peru and South America (Orthoptera, Myrmecophilidae) https://jor.pensoft.net/article/84157/ Journal of Orthoptera Research 31(2): 197-200

DOI: 10.3897/jor.31.84157

Authors: Nicolás Naveda Yuan, Thomas Stalling

Abstract: The first record of the ant cricket Myrmecophilus (Myrmecophilus) quadrispinus Perkins, 1899 for Peru and South America is presented. This species was discovered in the city of Lima in the nests of the ant species Brachymyrmex cordemoyi Forel, 1895, and Pheidole sp. Westwood, 1939 under a square brick and a stone in two urban gardens.

HTML

XML

PDF

]]>
Research Article Tue, 1 Nov 2022 11:19:59 +0200
New species of awl-head katydids, Cestrophorus and Acanthacara, from the Andes of Ecuador (Orthoptera, Conocephalinae, Cestrophorini) https://jor.pensoft.net/article/82306/ Journal of Orthoptera Research 31(2): 143-156

DOI: 10.3897/jor.31.82306

Authors: Holger Braun, Glenn K. Morris

Abstract: The Cestrophorini are small katydids of Ecuador’s montane rainforest bearing a prominent awl-shaped fastigium verticis. They are unusual among Conocephalinae in lacking pre-tympanic ear chambers: their eardrums are exposed on their fore tibiae. There are presently two genera, Cestrophorus Redtenbacher, 1891 and Acanthacara Scudder, 1869. Awl-head habitat includes both climax forest and anthropogenically disturbed areas (e.g., pastures, roadsides) on lower slopes in the drainage of the volcanoes Aliso, Chiles and Tungurahua. At night, males perch on low vegetation and stridulate to attract females. To three extant species, we add a further seven, two in Cestrophorus and five in Acanthacara. Male calling songs were recorded and analyzed for all three Cestrophorus species and for three of the Acanthacara spp. We describe and discuss the waveforms of their sinusoid and transient sound pulses in time and frequency domains.

HTML

XML

PDF

]]>
Research Article Fri, 30 Sep 2022 15:26:28 +0300
Three new species of Amblyrhethus (Orthoptera, Grylloidea, Gryllidae, Paroecanthini) from Brazil https://jor.pensoft.net/article/84135/ Journal of Orthoptera Research 31(2): 131-141

DOI: 10.3897/jor.31.84135

Authors: Lucas Denadai de Campos, Francisco de Assis Ganeo de Mello

Abstract: Amblyrhethus Kirby, 1906 is a genus of arboreal, undergrowth, and shrub crickets comprising, at present, seven species: one from Panama, one from Peru, two from Colombia, two from Brazil, and one with an unprecise locality. These crickets are seldom found in regular active collecting at night, although males produce a rather loud calling song. Unfortunately, their songs have never been recorded, and there is no ecological information for this genus so far. Here, we describe three new species from the Brazilian Atlantic Forest.

HTML

XML

PDF

]]>
Research Article Tue, 23 Aug 2022 02:32:31 +0300
Rediscovering the rare short-winged unicorn katydid Toledopizia salesopolensis (Piza) (Tettigoniidae: Conocephalinae) from South and Southeastern Brazil: First description of male and bioacoustics https://jor.pensoft.net/article/72513/ Journal of Orthoptera Research 30(2): 193-200

DOI: 10.3897/jor.30.72513

Authors: Marcos Fianco, Phillip Watzke Engelking, Gustavo Costa Tavares

Abstract: Toledopizia Chamorro-Rengifo & Braun, 2010 is a poorly known monotypic genus of Copiphorini. The only known specimen is the female type of T. salesopolensis (Piza, 1980). In this contribution, we present an updated description of this species, describing the unknown male, and provide biological and bioacoustic data. We also describe color variation, update the distribution data, and extend the known distribution of the species to two localities in Paraná State and another two in São Paulo State.

HTML

XML

PDF

]]>
Research Article Thu, 16 Dec 2021 03:39:49 +0200
Discovering insect species based on photographs only: The case of a nameless species of the genus Scaria (Orthoptera: Tetrigidae) https://jor.pensoft.net/article/65885/ Journal of Orthoptera Research 30(2): 173-184

DOI: 10.3897/jor.30.65885

Authors: Niko Kasalo, Maks Deranja, Karmela Adžić, Roberto Sindaco, Josip Skejo

Abstract: A heated debate on whether a new species should be described without a physical specimen, i.e., by designating a photographed specimen to serve as a holotype, has been ongoing for a long time. Herewith, without nomenclatural actions, a new species of the Batrachidein pygmy grasshoppers belonging to the genus Scaria Bolívar, 1887 is identified from the Andean rainforest in Peru. This species is clearly different from all its congeners by morphology and coloration. Two individuals of this peculiar species are known only from the photographs found on iNaturalist. The species has not been observed since 2008 when the photographs were taken. A short historical overview of the topic is given, illustrating the pros and cons of photograph-based species description. The concepts of names, holotypes, research effort, and conservation are discussed and related to the problem at hand. The current state of the taxonomic community’s beliefs regarding this issue is reflected by the authors’ three unsuccessful attempts to name this new species.

HTML

XML

PDF

]]>
Research Article Tue, 14 Dec 2021 20:52:10 +0200
Revision of the tusked bush-crickets (Tettigonioidea: Pseudophyllinae: Dicranostomus) with description of the hitherto unknown sexes https://jor.pensoft.net/article/62170/ Journal of Orthoptera Research 30(1): 87-94

DOI: 10.3897/jor.30.62170

Authors: Klaus-Gerhard Heller, Matthias Helb

Abstract: The genus Dicranostomus belongs to the very few Orthoptera with elongated mandibular processes, here called tusks. However, it is also one of the least studied genera from whose two species only one female and two males have been known so far. We present additional material from both species and sexes that confirms that the males have the relatively longest (2–2.8 times pronotal length) tusks of all Orthoptera. Surprisingly, the females of both species differ in this character: females of D. monoceros have tusks and those of D. nitidus do not. Based on a comparison with other species, we hypothesize that the species use holes that males can defend and use to monopolize the females.

HTML

XML

PDF

]]>
Research Article Thu, 3 Jun 2021 00:13:48 +0300
Bioecological aspects of the common black field cricket, Gryllus assimilis (Orthoptera: Gryllidae) in the laboratory and in Eucalyptus (Myrtaceae) plantations https://jor.pensoft.net/article/48966/ Journal of Orthoptera Research 29(1): 83-89

DOI: 10.3897/jor.29.48966

Authors: Marcus Vinicius Masson, Wagner de Souza Tavares, Jacyr Mesquita Alves, Pedro José Ferreira-Filho, Leonardo Rodrigues Barbosa, Carlos Frederico Wilcken, José Cola Zanuncio

Abstract: The common black field cricket, Gryllus assimilis (Orthoptera: Gryllidae), damages young plants of red cedar, Juniperus virginiana (Cupressaceae); strawberry, Fragaria × ananassa (Rosaceae); sugarcane, Saccharum officinarum (Poaceae); teak, Tectona grandis (Lamiaceae); upland cotton, Gossypium hirsutum (Malvaceae); and, mainly, Eucalyptus spp. (Myrtaceae). The objective of this study was to investigate the biological and behavioral parameters of this insect in the laboratory and in Eucalyptus spp. plantations in Inhambupe, Bahia State, Brazil. The incubation period and the viability of G. assimilis eggs were 11.87 days and approximately 22%, respectively. The duration of the nymphal stage was 62.34 days with approximately 60% of the nymphs obtained in the laboratory being females. The average number of egg batches per female, eggs per female, and eggs per batch per female of this insect were 25.50, 862.17, and 34.65, respectively. G. assimilis females lived for 76.50 days in the adult stage, and 138.34 days in total, from egg through nymph to adult. Males produced three characteristic sounds: one for the marking of territory, one for courtship, and one when alone. G. assimilis fed primarily on weeds but, in their absence, it damaged young Eucalyptus spp. plants. This paper presents important data on the biology and behavior of G. assimilis; this information may encourage additional biological research, laboratory rearing, and integrated management of this pest.

HTML

XML

PDF

]]>
Research Article Fri, 29 May 2020 05:11:47 +0300
Review of the tribe Amorphopini (Orthoptera: Tetrigidae: Metrodorinae): Pygmy moss-lichen tetrigids from the Amazon rainforest https://jor.pensoft.net/article/33717/ Journal of Orthoptera Research 29(1): 45-62

DOI: 10.3897/jor.29.33717

Authors: Oscar J. Cadena-Castañeda, Daniela Santos Martins Silva, Diego Matheus De Mello Mendes, Marcelo Ribeiro Pereira, Fernando Campos De Domenico, Carlos Frankl Sperber

Abstract: The tribe Amorphopini Günther, 1939 is reviewed. It consists of two genera: Amorphopus Seville, 1838 and Eomorphopus Hankock, 1907 with three Neotropical species: Amorphopus notabilis Serville, 1838, Eomorphopus antennatus (Bolívar, 1887), and Eomorphopus granulatus Hancock, 1907. Two species are transferred from Amorphopus to the genera Metrodora Bolívar, 1887 and Crimisus Bolívar, 1887, and two new combinations are proposed: Metrodora gibbosula (Walker, 1871), comb. nov. and Crimisus humeralis (Walker, 1871), comb. nov. New synonyms are proposed: Amorphopus notabilis Serville, 1838 = Amorphopus griseus Bolívar, 1887, syn. nov.; Metrodora gibbosula (Walker, 1871) = Platytettix reticulatus Hancock, 1906, syn. nov.; and Crimisus humeralis (Walker, 1871) = Allotettix bolivianus Brunner, 1913, syn. nov. Neotypes of Amorphopus notabilis and Eomorphopus antennatus as well as the lectotype of E. granulatus are designated. The description of Amorphopus testudo Saussure, 1861 is based on an immature specimen and we considered it as nomen dubius and the type depository of Eomorphopus purpurascens is unknown so we considered it, too, as nomen dubius. The tribe Amorphopini and all included taxa were redescribed and illustrated. A key to the genera and species is provided. Data on distribution, behavior, camouflage with lichens, polychromy, as well as ecological aspects of the species are reported.

HTML

XML

PDF

]]>
Research Article Mon, 30 Mar 2020 03:08:56 +0300
Ethology of the cricket Endecous (Endecous) chape Souza-Dias & de Mello, 2017 (Orthoptera: Grylloidea: Phalangopsidae) I: Agonistic and reproductive behavior https://jor.pensoft.net/article/29687/ Journal of Orthoptera Research 27(2): 193-201

DOI: 10.3897/jor.27.29687

Authors: Marcos Fianco, Pedro Guilherme Barrios de Souza-Dias, Fernando de Farias-Martins, Suzana Magro, Victor Mateus Prasniewski, Jéssica Ricci, Edison Zefa, Neucir Szinwelski

Abstract: The mating behaviors of crickets, especially those related to agonistic encounters and oviposition, are poorly known. For example, only 10 of the 1005 valid species of Phalangopsidae have been studied to some extent. Here, we describe the reproductive behavior of Endecous (Endecous) chape, characterizing the actions involved in agonistic encounters, mating behaviors (female attraction, pair-formation, courtship, mating, and post-copulatory behavior), and oviposition. We recorded and timed agonistic, mating, and oviposition behaviors in staged trials. The male-male interactions of E. chape ranged in aggressiveness from low intensity (only antennal interaction) to high intensity (reciprocal fights). In the mating behavior, males courted females through antennation of the females’ abdomen and cerci, followed by production of acoustic signals (with the exception of two males). Copulation occurred with females positioned above males (as is typical of Phalangopsidae), with an average elapsed time of 684.13 s, which is shorter than in other Phalangopsidae. We observed oviposition behavior only when three gravid females were placed together in an arena. Here, we contribute new knowledge of phalangopsid cricket behavior and provide useful information for understanding the evolution of reproductive behaviors. New characters described here can be used in phylogenetic analysis and for future studies about sexual selection and natural history.

HTML

XML

PDF

]]>
Research Article Mon, 10 Dec 2018 04:35:55 +0200
Morphometric variation among males of Orphulella punctata (De Geer, 1773) (Acrididae: Gomphocerinae) from different biomes in Brazil https://jor.pensoft.net/article/21203/ Journal of Orthoptera Research 27(2): 163-171

DOI: 10.3897/jor.27.21203

Authors: Ana Catia Santos da Silva, Lorena Andrade Nunes, Wanessa de Lima Batista, Marcos Gonçalves Lhano

Abstract: The objective of the present study was to examine variation in the shape and size of pronotum, hind femur, and head in the males of Orphulella punctata (De Geer, 1773) from three different Brazilian biomes: the Cerrado, the Atlantic Forest, and the Pantanal. A total of 150 specimens were analyzed from three populations. The results of MANOVA indicated significant differences (p<0.01) in the shape of the analyzed structures of O. punctata from the different biomes. The results of ANOVA demonstrated significant differences (p<0.05) in the size of all analyzed structures. Pearson’s correlation analyses among the different structures and the environmental variables revealed that the shape of pronotum, hind femur, and head (dorsal view), as well as the size of pronotum and head (dorsal and lateral views) varied with the geographic longitude, while the shape of hind femur and head (dorsal view) showed a significant negative correlation with size. Results indicated that the shape and size of the analyzed structures, in general, were influenced by the geographical variables.

HTML

XML

PDF

]]>
Research Article Wed, 5 Dec 2018 23:04:38 +0200
Description of the female, egg and first instar nymph of the stick insect Paraphasma paulense (Phasmatodea: Pseudophasmatidae) from Southeast Brazil https://jor.pensoft.net/article/20180/ Journal of Orthoptera Research 26(2): 91-101

DOI: 10.3897/jor.26.20180

Authors: Pedro Ivo Chiquetto-Machado, Fabiano Fabian Albertoni

Abstract: The stick insect Paraphasma paulense was described based on one male from the vicinity of São Paulo city, state of São Paulo, Brazil. Here we describe and illustrate the female, egg and first instar nymph of the species, including scanning electron micrographs of the egg. In addition, we give brief behavioural reports and present a few comments on the biology and morphology of P. paulense.

HTML

XML

PDF

]]>
Research Article Fri, 13 Oct 2017 09:30:25 +0300