Latest Articles from Journal of Orthoptera Research Latest 6 Articles from Journal of Orthoptera Research https://jor.pensoft.net/ Fri, 29 Mar 2024 17:45:16 +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.

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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.

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Short Communication Fri, 8 Sep 2023 08:59:49 +0300
Estimation of katydid calling activity from soundscape recordings https://jor.pensoft.net/article/73373/ Journal of Orthoptera Research 31(2): 173-180

DOI: 10.3897/jor.31.73373

Authors: Laurel B. Symes, Shyam Madhusudhana, Sharon J. Martinson, Ciara E. Kernan, Kristin B. Hodge, Daniel P. Salisbury, Holger Klinck, Hannah ter Hofstede

Abstract: Insects are an integral part of terrestrial ecosystems, but while they are ubiquitous, they can be difficult to census. Passive acoustic recording can provide detailed information on the spatial and temporal distribution of sound-producing insects. We placed recording devices in the forest canopy on Barro Colorado Island in Panamá and identified katydid calls in recordings to assess what species were present, in which seasons they were signaling, and how often they called. Soundscape recordings were collected at a height of 24 m in two replicate sites, sampled at three time-windows per night across five months, spanning both wet and dry seasons. Katydid calls were commonly detected in recordings, but the call repetition rates of many species were quite low, consistent with data from focal recordings of individual insects where calls were also repeated rarely. The soundscape recordings contained 6,789 calls with visible pulse structure. Of these calls, we identified 4,371 to species with the remainder representing calls that could not be identified to species. The identified calls corresponded to 24 species, with 15 of these species detected at both replicate sites. Katydid calls were detected throughout the night. Most species were detected at all three time points in the night, although some species called more just after dusk and just before dawn. The annotated dataset provided here serves as an archival sample of the species diversity and number of calls present in the forest canopy of Barro Colorado Island, Panama. These hand-annotated data will also be key for evaluating automated approaches to detecting and classifying insect calls. In changing forests and with declining insect populations, consistent approaches to insect sampling will be key for generating interpretable and actionable data.

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Research Article Tue, 4 Oct 2022 12:43:20 +0300
Description and photographs of cricket parental care in the wild https://jor.pensoft.net/article/52079/ Journal of Orthoptera Research 30(1): 27-30

DOI: 10.3897/jor.30.52079

Authors: Darin J. McNeil, Bettina Erregger

Abstract: Although certain forms of parental care are relatively widespread phenomena among insects, within Orthoptera, parental care is rare. Short-tailed burrowing crickets (Anurogryllus spp.) are among the few members of this order for which extensive parental care has been documented. However, accounts of parental care in Anurogryllus have been largely under laboratory conditions, and observations of this behavior in the wild are rare. Herein we present photographic observations from a mountain slope in Honduras where we discovered an active Anurogryllus brood chamber where an adult female was tending her brood. We present these results in the context of parental care in insects and compare our observations with those reported in past literature published on Anurogryllus crickets’ parental behavior.

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Short Communication Tue, 23 Mar 2021 16:38:47 +0200
Calling songs of Neotropical katydids (Orthoptera: Tettigoniidae) from Panama https://jor.pensoft.net/article/46371/ Journal of Orthoptera Research 29(2): 137-201

DOI: 10.3897/jor.29.46371

Authors: Hannah M. ter Hofstede, Laurel B. Symes, Sharon J. Martinson, Tony Robillard, Paul Faure, Shyam Madhusudhana, Rachel A. Page

Abstract: Understanding the ecology and evolution of animal communication systems requires detailed data on signal structure and variation across species. Here, we describe the male acoustic signals of 50 species of Neotropical katydids (Orthoptera: Tettigoniidae) from Panama, with the goal of providing data and recordings for future research on katydid communication, evolution, ecology, and conservation. Male katydids were recorded individually using an ultrasound-sensitive microphone and high-sampling rate data acquisition board to capture both audible and ultrasonic components of calls. Calls varied enormously in duration, temporal patterning, peak frequency, and bandwidth both across and within subfamilies. We confirm previous studies showing that katydid species within the subfamily Pseudophyllinae produced short calls (<250 ms) at long intervals and we confirm that this is true for species in the subfamily Phaneropterinae as well. Species in the Conocephalinae, on the other hand, typically produced highly repetitive calls over longer periods of time. However, there were exceptions to this pattern, with a few species in the Conocephalinae producing very short calls at long intervals, and some species in the Phaneropterinae producing relatively long calls (1–6 s) or calling frequently. Our results also confirm previous studies showing a relationship between katydid size and the peak frequency of the call, with smaller katydids producing higher frequency calls, but the slope of this relationship differed with subfamily. We discuss the value of documenting the diversity in katydid calls for both basic studies on the ecology, evolution, and behavior of these species as well as the potential conservation benefits for bioacoustics monitoring programs.

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Research Article Fri, 4 Dec 2020 08:58:51 +0200
Studies on neotropical Phasmatodea XXII: Two new species of Taraxippus (Phasmatodea: Cladomorphinae: Hesperophasmatini) and the first record of the genus from Central America https://jor.pensoft.net/article/51328/ Journal of Orthoptera Research 29(1): 101-114

DOI: 10.3897/jor.29.51328

Authors: Oskar V. Conle, Frank H. Hennemann, Pablo Valero

Abstract: Two new species of Taraxippus Moxey, 1971 are described and illustrated: T. samarae sp. nov. from Costa Rica and Panama and T. perezgelaberti sp. nov. from the Dominican Republic. Both sexes and the previously unknown eggs are described. The genus is recorded from Central America for the first time. A distribution map and a discussion of the distributional pattern of Taraxippus are provided.

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Research Article Fri, 29 May 2020 15:06:47 +0300