First Record of the Bush-Cricket Isophya Harzi (Orthoptera: Phaneropteridae) Outside its Locus Typicus

Author(s):  
Ionuţ Ştefan Iorgu ◽  
Alexandru Ioan Tatu ◽  
Elena Iulia Iorgu

Abstract During the period 2008-2012, the bush-cricket Isophya harzi Kis, 1960 has been the subject of several collecting trips in Cozia Mountains, where it was believed to be endemic, in order to study its acoustic behaviour. However, on a recent trip to Piatra Craiului Mountains, to study its Orthoptera fauna, I. harzi was surprisingly found in clearings and mountain steppe slopes covered with tall subalpine vegetation from Northern and Western areas. Bioacoustic analysis and some ecological notes are presented in the paper.

1966 ◽  
Vol 45 (1) ◽  
pp. 15-30
Author(s):  
M. D. R. JONES

1. Pholidoptera griseoptera males singing alone or alternating with other males produce short chirps of three or occasionally four syllables (wing movements) lasting about 100 msec. (at 18° C.). 2. Close proximity of singing males may result in rivalry behaviour where chirps lasting up to about 4 sec. may be produced. The long chirp is not usually continuous but has a number of breaks or ‘stutters’. 3. The syllables and syllable rates in the long chirp and short chirp are essentially similar. 4. At the end of a short chirp or of a group of syllables in the long chirp, the syllable rate is decreased, possibly indicating a waning of excitation of the syllable-producing mechanism. 5. Males within hearing range of each other alternate or occasionally synchronize their short chirps. The pattern of this interaction appears to be determined mainly by mutual inhibition between the singing males. Mutual excitation may cause an in crease in chirp rate during the interaction. 6. Chirping may be controlled by a pacemaker system which can be inhibited or excited by its various inputs. A long chirp is possibly the result of a high level of excitation of this mechanism. 7. Alternation singing and rivalry behaviour between males may have a territorial significance.


Parasitology ◽  
1936 ◽  
Vol 28 (1) ◽  
pp. 72-78 ◽  
Author(s):  
Violet Woolcock

Within recent years a considerable amount of work has been done on the Myxosporidia, especially, as pointed out by Kudo (1919), in North America, Asia, and to a lesser degree in Japan (Fugita, 1912, 1913, 1925). Few investigations, however, have been carried out in Australia, and consequently very little is known concerning the distribution of the group in this country. There appear to be as yet only two contributions to the subject, papers by T. Harvey Johnston and M. J. Bancroft (1918, 1919). As far as can be ascertained, my paper is the first report concerning Myxosporidia from fishes of Southern Australian waters, and contains the first record of a species of Chloromyxum from Australia.


2020 ◽  
Author(s):  
Ian Bool ◽  
Matthew Slaymaker ◽  
Robert D. Magrath ◽  
Arthur Arfian ◽  
Adi Karya ◽  
...  

1966 ◽  
Vol 45 (1) ◽  
pp. 31-44
Author(s):  
M. D. R. JONES

1. Artificial signals have an inhibitory effect on chirping which affects whole chirps. With signals 1 sec. or less in length, the insects hardly ever chirp during the signal. If the signal is longer, chirps ’break through‘, but the chirp rate is usually less during the signals than in the periods of silence between the signals. 2. With signals of 0.1 sec. or less, the insect does not chirp until 0.4-1.0 sec. after the end of the signal. With longer signals this interval is reduced until the insect chirps during the signal. 3. Artificial signals may have an excitatory effect in increasing the total chirp rate in the period during which signals are being produced, and this effect may last for several minutes after the signals have ended. This may be due to rebound from inhibition or to a parallel excitatory effect of the signal. The excitatory effect is increased if the length of the signal is increased from 0.1 to 1 sec. 4. The excitatory effect is not so certain as the inhibitory effect and sometimes may be reversed, giving a reduction in chirp rate. 5. With very long signals (3 min.) there may be (a) a decrease in chirp rate during the signal followed by an increase after the signal, (b) a decrease in chirp rate during the signal with a very slow recovery after the signal, or (c) an increase in chirp rate during the signal followed by a decrease to normal after the signal. These effects can be more easily explained by parallel excitatory and inhibitory effects than by rebound from inhibition. 6. An increase in intensity of the signal from 40 to 70 db. gives an increase in both the inhibitory and the excitatory (or depressant) effects of the signals. 7. The rapidity and certainty of the inhibitory effect make it seem probable that few synapses are involved. The greater flexibility of the excitatory effect indicates that this effect may be mediated by higher centres in the C.N.S. 8. Recognition of the characteristic chirp of the species does not appear to be particularly important in the acoustic interaction of Ph. griseoaptera males.


Author(s):  
Soňa Nuhlíčková ◽  
Ján Svetlík ◽  
Anton Krištín

Abstract Keeled Plump Bush-cricket Isophya costata is one of ten orthopteran species of European Community interest (Annex II and IV of Habitats Directive), endemic to the Pannonian Basin in Central Europe. It was discovered for the first time in Slovakia in June 2017, in southwestern area of the country (the site Devínske jazero, 48.2722°N / 16.9404°E, 134 m a.s.l.), in continental flooded meadows. The presence of the species in this new site is copying the northern edge of its area. New data of species distribution, its habitat, accompanying orthopteran species are described and main threats and conservation measures of the species are discussed.


1951 ◽  
Vol 25 (1-2) ◽  
pp. 29-32 ◽  
Author(s):  
T. Goodey

The finding of tares or common vetch, Vida sativa L., attacked by the stem eelworm, Ditylenchus dipsaci (Kiihn) Filipjev, reported in the foregoing paper by Staniland and Southcy and the correspondence on the subject which passed between Staniland and Goodey, brought to light an interesting point in regard to the accuracy of the first record of the parasite on this particular host which calls for some comment and elucidation.


2011 ◽  
Vol 38 (1) ◽  
pp. 18-35 ◽  
Author(s):  
Giuseppe Manganelli ◽  
Andrea Benocci ◽  
Valeriano Spadini

In 1776, the Sienese botanist Biagio Bartalini (1750–1822) published a catalogue of wild plants growing around Siena, adding an appendix on fossils found in the same area, that is the first monograph on Sienese fossils and one of the first works of its kind in Italy. This paper provides tentative identifications of the species and an analysis of the value and meaning of Bartalini's work.The catalogue reports 72 species, each denoted by a list of names applied to analogous living taxa. Identification of single entities is extremely problematical because it can only be attempted through analysis of the literature, since the original material cannot be traced.The most interesting report is the first record of a Euro-Mediterranean Pliocene species of Sthenorytis (Gastropoda, Epitoniidae). Though important, the catalogue is incomplete, with oversights and mistakes, suggesting little familiarity with the subject. Shortcomings include some inconsistencies in the species sequence, the report of giant clams and the absence of molluscs ubiquitous in the Sienese Pliocene and sharks. Nor is it true that it is the first Italian palaeontological work in which binomial nomenclature was used, as sometimes claimed.


2021 ◽  
Vol 30 (2) ◽  
pp. 501-511
Author(s):  
Sebastian Ćato ◽  
◽  
Dean Zagorac ◽  

Interesting records of one bush-cricket and two grasshopper species are reported from Croatia and Slovenia. Rhacocleis annulata Fieber, 1853 (Tettigoniidae: Tettigoniinae) has been reported for the first time from Croatia (Dubrava by Šibenik), as well as for Slovenia (Borovnica SW of Ljubljana); Eyprepocnemis plorans (Charpentier, 1825) (Acrididae: Eyprepocnemidinae) is reported for the first time for Croatia, also from Dubrava; and finally, the Xya pfaendleri Harz, 1970 (Tridactylidae: Tridactylinae) record from Dubrava represents the first record of this species from Dalmatia. Rhacocleis annulata and Eyprepocnemis plorans are known to be spreading through Europe, so these records contribute to the understanding of their dispersal in Southern Europe. Croatian Orthopteran fauna now counts, with two species added, 187 species, while Slovenian Orthopteran fauna now counts, with one species added, 158 species.


Behaviour ◽  
1981 ◽  
Vol 76 (3-4) ◽  
pp. 182-205 ◽  
Author(s):  
William Latimer

AbstractLaboratory studies have been made of the duetting behaviour of the bush cricket Platycleis albopunctata and related to the natural behaviour of this species in the field. Sound transmission and attenuation in grassland habitats has been investigated briefly. Duets between caged males usually commence with a phase of chirp alternation in which each insect produces chirps at half the normal rate. Generally duets resolve into interactions in which one insect sings close to the normal solo rate while the other sings intermittently, interrupting chirps such that the species-specific temporal pattern of the songs of both insects is obscured. The lack of precise alternation and the development of this dominance-subordinance relationship is consistent with a 'territorial' dispersion pattern in the field where males are usually beyond the range of mutual acoustic interference.


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