@article {58454, title = {The distribution and calls of Vraem{\textquoteright} Treefrog, Dendropsophus vraemi (Caminer, Mil{\'a}, Jansen, Fouquet, Venegas, Ch{\'a}vez, Lougheed, and Ron 2017), with comments on its conservation status}, journal = {Amphibian \& Reptile Conservation}, volume = {15}, year = {2021}, pages = {311-317}, chapter = {311}, abstract = {

Dendropsophus vraemi is a recently described frog that is only known from the type locality, in La Mar province, Ayacucho, Peru. Here, we present new data on its geographic distribution, coloration in life, and habitat, as well as descriptions of the advertisement and aggressive calls of this species. The new localities extend the known distribution range 151 km northwest and the elevation range down to 250 m asl, which is nearly 450 m lower than previously known. Our findings are inconsistent with its current IUCN categorization of Least Concern (LC), and we suggest that this species should be categorized as Data Deficient.

}, keywords = {Amphibia, Anura, Data Deficient, Peru, South America, vocalization}, author = {Germ{\'a}n Ch{\'a}vez and Andy C. Barboza and Michelle E. Thompson} } @article {58433, title = {Ethology of the cricket Endecous (Endecous) chape Souza-Dias \& de Mello, 2017 (Orthoptera: Grylloidea: Phalangopsidae) I: Agonistic and reproductive behavior}, journal = {Journal of Orthoptera Research}, volume = {27}, year = {2018}, pages = {193-201}, chapter = {193}, 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.

}, keywords = {aggressiveness, ethology, Luzarinae, mating behavior, Parque Nacional do Igua{\c c}u}, doi = {10.3897/jor.27.29687}, author = {Marcos Fianco and Pedro Guilherme Barrios de Souza-Dias and Fernando de Farias-Martins and Suzana Magro and Victor Mateus Prasniewski and J{\'e}ssica Ricci and Edison Zefa and Neucir Szinwelski} } @article {58315, title = {Socotracris kleukersi n. gen. n. sp., a new troglobitic cricket from Socotra (Yemen) (Orthoptera: Grylloidea, Phalangopsidae)}, year = {2012}, abstract = {

The cricket Socotracris kleukersi n. gen., n. sp., collected in a cave at Wadi Zerik, Diksam Plateau, Socotra, Yemen is described. The genus and species are characterized by male and female genitalia and external morphology.

}, keywords = {Cave life, Indian Ocean, new species}, doi = {10.11646/zootaxa.3252.110.11646/zootaxa.3252.1.3}, url = {https://biotaxa.org/Zootaxa/issue/view/zootaxa.3252.1https://biotaxa.org/Zootaxa/article/view/zootaxa.3252.1.3https://biotaxa.org/Zootaxa/article/viewFile/48838/42297}, author = {Desutter-Grandcolas, Laure and Felix, Rob P. W. H.} } @article {58068, title = {Two new species of crickets Adelosgryllus Mesa \& Zefa, 2004 (Orthoptera, Grylloidea, Phalangopsidae) from the Araripe-Apodi National Forest, State of Cear{\'a}, Brazil}, year = {2018}, abstract = {

In this paper we describe two new sympatric species of phalangopsid crickets Adelosgryllus from the Araripe-Apodi Na- tional Forest, State of Cear\á, Brazil, highlighting morphological characters, mainly from male genitalia, tegmina and cop- ulatory papilla. We also present a geographical map for the valid species of the genus, as well as photographs of holotypes and paratypes. The type-material is deposited in the Museu de Zoologia da Universidade de S\ão Paulo (MZUSP).

}, keywords = {Ensifera, genitalia, Insect, Neotropical region, taxonomy}, doi = {10.11646/zootaxa.4420.110.11646/zootaxa.4420.1.5}, url = {https://biotaxa.org/Zootaxa/issue/view/zootaxa.4420.1https://biotaxa.org/Zootaxa/article/view/zootaxa.4420.1.5https://biotaxa.org/Zootaxa/article/viewFile/38768/33122}, author = {CORR{\^E}A, ROBSON CREPES and PEREIRA, MARCELO RIBEIRO and DA COSTA, MARIA K{\'A}TIA MATIOTTI and SZINWELSKI, NEUCIR and MARTINS, LUCIANO DE PINHO and Zefa, Edison} } @article {58027, title = {Diversity of acoustic tracheal system and its role for directional hearing in crickets}, year = {2013}, abstract = {

Background: Sound localization in small insects can be a challenging task due to physical constraints in deriving sufficiently large interaural intensity differences (IIDs) between both ears. In crickets, sound source localization is achieved by a complex type of pressure difference receiver consisting of four potential sound inputs. Sound acts on the external side of two tympana but additionally reaches the internal tympanal surface via two external sound entrances. Conduction of internal sound is realized by the anatomical arrangement of connecting trachea. A key structure is a trachea coupling both ears which is characterized by an enlarged part in its midline (i.e., the acoustic vesicle) accompanied with a thin membrane (septum). This facilitates directional sensitivity despite an unfavorable relationship between wavelength of sound and body size. Here we studied the morphological differences of the acoustic tracheal system in 40 cricket species (Gryllidae, Mogoplistidae) and species of outgroup taxa (Gryllotalpidae, Rhaphidophoridae, Gryllacrididae) of the suborder Ensifera comprising hearing and non hearing species.

Results: We found a surprisingly high variation of acoustic tracheal systems and almost all investigated species using intraspecific acoustic communication were characterized by an acoustic vesicle associated with a medial septum. The relative size of the acoustic vesicle - a structure most crucial for deriving high IIDs - implies an important role for sound localization. Most remarkable in this respect was the size difference of the acoustic vesicle between species; those with a more unfavorable ratio of body size to sound wavelength tend to exhibit a larger acoustic vesicle. On the other hand, secondary loss of acoustic signaling was nearly exclusively associated with the absence of both acoustic vesicle and septum.

Conclusion: The high diversity of acoustic tracheal morphology observed between species might reflect different steps in the evolution of the pressure difference receiver; with a precursor structure already present in ancestral non-hearing species. In addition, morphological transitions of the acoustic vesicle suggest a possible adaptive role for the generation of binaural directional cues.

}, keywords = {Acoustic tracheal system, cricket, directional hearing, Interaural intensity difference (IID), Pressure difference receiver, Sound localization}, doi = {10.1186/1742-9994-10-61}, url = {http://frontiersinzoology.biomedcentral.com/articles/10.1186/1742-9994-10-61}, author = {Schmidt, Arne KD and R{\"o}mer, Heiner} } @article {53575, title = {The cricket fauna of Chiapanecan caves (Mexico): systematics, phylogeny and the evolution of troglobitic life (Orthoptera, Grylloidea, Phalangopsidae, Luzarinae)}, journal = {International Journal of Speleology}, volume = {22}, year = {1993}, month = {Jan-01-1993}, pages = {1 - 82}, abstract = {

The present study deals with the cavernicolous Grylloidea of Chiapas. It details the composition of this fauna, which belongs exclusively to the Phalangopsid group Amphiacustae, and considers its troglobitic evolution in the methodological framework of Comparative Biology. This method consists in analysing the evolution of biological features in reference to phylogeny, using character state optimization. The material studied comes mostly from Italian biospeological expeditions, but also from the authors work in Mexico, from North American biospeological expeditions achieved in Central America and the West Indies, and from the collections of the Academy of Natural Sciences of Philadelphia, the Museum National d\’Histoire naturelle de Paris and the University of Michigan Museum of Zoology. I first present a systematic and phylogenetic analysis of Amphiacustae. Six new genera are defined and the genus Amphiacusta Saussure, 1874 is clearly delimited; twenty-three of the twenty-six species considered in the paper are new and described. A key for genera and species groups is given. Phylogenetic relationships among genera are established using cladistics (implicit enumeration of Hennig 86 program). The evolution of troglobitic Amphiacustae is then analyzed. Available data on the biology of Amphiacust genera are presented and compared with what is known on other Phalangopsidae. Three biological attributes are moreover defined (troglobitic versus non troglobitic; cavernicolous versus non cavernicolous; leaf litter foraging versus leaf litter not foraging). The mapping of the attributes upon our cladogram has shown that Amphiacustae evolved twice toward cave life and that their ancestral habitat could be characterized by cavernicolous habits and leaf litter foraging. The results are discussed in reference to theories on troglobitic taxa evolution, and to the exaptation concept of Gould \& Vrba (1982). This leads to three main conclusions: 1) Amphiacust adaptation to caves could be the result of a tentative to exploit karstic resources in Central America; 2) An epigean dispersion by cave living species can be hypothesized; 3) For Grylloidea, having cavernicolous habits at ground level appears to be exaptative to troglobitic life.

}, issn = {0392-6672}, doi = {10.5038/1827-806X10.5038/1827-806X.22.110.5038/1827-806X.22.1.1}, url = {http://scholarcommons.usf.edu/ijs/}, author = {Desutter-Grandcolas, Laure} } @article {53403, title = {Endecous peruassuensis n. sp. (Orthoptera: Grylloidea: Phalangopsidae) from caves of Eastern Brazil: evidence of isolation in the subterranean realm and discussion about troglomorphisms}, journal = {Zootaxa}, volume = {4032}, year = {2015}, month = {Apr-10-2016}, pages = {297}, abstract = {

We describe a new species of the genus Endecous Saussure (1878), recorded at the Lapa do Cip\ó and Olhos d\’\Água caves, which are located in the Itacarambi municipality, Minas Gerais state, Eastern Brazil. Another species, E. aguassay Mews, 2008 was recordedin the surroundings of the caves. The genus Endecous corresponds to the most common cricket in Bra- zilian hypogean environments. In general, these crickets inhabit the areas around cave entrances up to the aphotic zones of caves. The genus Endecous is the only cave cricket to present troglobiomorphosis, i.e., an apterous condition. The dis- tribution of the new species is limited to these two caves, which suggests an endemism in this karst system similar to the distribution of other endemic animals, such as harvestmen and amblypygid arachnids. This species is the sixth troglobitic one described for Olhos d\’\Água cave, which sets this cave as a spot of subterranean fauna in Brazil.

}, keywords = {cave cricket, new species, Perua{\c c}u Caves National Park, subterranean environment}, issn = {1175-5326}, doi = {10.11646/zootaxa.4032.310.11646/zootaxa.4032.3.5}, url = {http://biotaxa.org/Zootaxa/issue/view/zootaxa.4032.3}, author = {Marcio P. Bolfarini and Maria Elina Bichuette} } @article {47920, title = {Basic elements of behavior of the cricket Phaeophilacris bredoides Kaltenbach (Orthoptera, Gryllidae)}, journal = {Entomological Review}, volume = {96}, year = {2016}, month = {Jan-08-2016}, pages = {537 - 544}, abstract = {

The intraspecific behavior of the non-singing cricket Phaeophilacris bredoides Kaltenbach, 1986, which has no tympanal system, stridulatory apparatus, and classical acoustic communication, was studied. Even though this cricket has no song, its intraspecific behavior can be differentiated into reproductive and agonistic (defensive and aggressive), as this was done before for singing crickets. The main elements and the sequence of the phases were described for reproductive behavior. The active role during copulation belongs to the male. Wingflicks and rocking movements of the male can function as a \“song.\” Wing-flicks apparently generate air movements that function as short-range signals during reproductive and aggressive behavior. Substrate-borne vibrations produced by rocking also seem to be associated with aggressive behavior. Antennal contacts form an important part of interaction between crickets of both sexes. Thus, intraspecific signaling is at least partly mediated by mechanosensory channels. The assumption about the possible direction of evolution in the singing and non-singing groups of crickets was made.

}, issn = {0013-8738}, doi = {10.1134/S0013873816050031}, url = {http://link.springer.com/10.1134/S0013873816050031}, author = {Lunichkin, A. M. and Zhemchuzhnikov, M. K. and Knyazev, A. N.} } @article {47773, title = {Male displays and female preferences in the courtship of a gregarious cricket}, journal = {Animal Behaviour}, volume = {32}, year = {1984}, month = {Jan-08-1984}, pages = {690 - 697}, abstract = {

The courtship of males of the gregarious cricket Amphiacusta maya involves a variety of signals. The quantitative aspects of both successful and unsuccessful courtship sequences were examined to determine whether certain aspects of male displays were correlated with female mating preferences regardless of which male performed them. Although variability among males was high for most courtship components measured, I found no evidence of female choice with respect to the courtship variables studied. About 35\% of the duration of each male courtship sequence is devoted to chirping, but there were no differences in either the likelihood of copulation or the latency to copulation between normal males and experimentally silenced males. The possibility that intrinsic differences in male quality explained the variability in courtship duration was examined with a two-way analysis of variance. The variance in courtship duration was attributable to variance among females, not to variance among males. Thus the courtship behaviour of male A. maya is variable enough to allow females to exert stabilizing or disruptive selection on displays, but there is no evidence that females use the available information.

}, issn = {00033472}, doi = {10.1016/S0003-3472(84)80144-X}, url = {http://linkinghub.elsevier.com/retrieve/pii/S000334728480144X}, author = {Christine R. B. Boake} } @article {17248, title = {Aggressive Signal in "Courtship" Chirps of a Gregarious Cricket}, journal = {Science}, volume = {218}, year = {1982}, month = {May-11-1982}, pages = {580 - 582}, abstract = {

Unlike other known species of crickets, Amphiacusta maya in Central America mates in groups. Experimentally silenced males experience reduced mating success, not owing to decreased receptivity by females, but owing to increased time spent fighting with other males that persistently interrupt silent courtships. Thus, the data indicate that \"courtship\" chirping functions as a warning to other males, rather than as a signal to females.

}, issn = {0036-8075}, doi = {10.1126/science.218.4572.580}, url = {http://www.sciencemag.org/cgi/doi/10.1126/science.218.4572.580https://syndication.highwire.org/content/doi/10.1126/science.218.4572.580}, author = {Christine R. B. Boake and R. R. Caparanica} } @article {17222, title = {Natural History and Acoustic Behavior of a Gregarious Cricket}, journal = {Behaviour}, volume = {89}, year = {1984}, month = {Jan-01-1984}, pages = {241 - 250}, abstract = {

The cricket Amphiacusta maya (Gryllidae: Phalangopsinae) was studied in the field in Costa Rica and in the laboratory. In the seasonal habitat of Guanacaste Province, C.R., adults are found only during the first 4 months of the rainy season. Adults and subadult nymphs form aggregations each dawn and disperse at dusk. Within the aggregations, males chirp, fight other males, and occasionally mate with females. The acoustic behavior of these crickets differs from that of the better-known field crickets in three major ways. First, males do not produce a calling song. Second, the chirps given in aggressive and courtship contexts are nearly indistinguishable spectrally and temporally. Third, the species-typical chirp does not elicit phonotaxis in adult females or in nymphs. Possibly the calling song would no longer provide a selective advantage to males because females are in their vicinity regardless of male behavior. Additionally, acoustic signal similarity may be a result of selection for aggressive signalling in both contexts (aggression and courtship). Thus these modifications in acoustic signals may be adaptations to a gregarious mating system.

}, issn = {0005-7959}, doi = {10.1163/156853984X00399}, url = {http://www.jstor.org/stable/4534348}, author = {Christine R. B. Boake} } @article {17200, title = {The stridulations of some crickets in the Dominican Republic}, journal = {Journal of the Washington Academy of Sciences}, volume = {47}, year = {1957}, pages = {150-152}, chapter = {150}, url = {http://biostor.org/reference/134282}, author = {Allard, H. A.} }