scholarly journals Redescription of Apseudopsis arguinensis (Crustacea: Peracarida: Tanaidacea) from the Coast of Mauritania

2021 ◽  
Vol 64 (2) ◽  
pp. 21-33
Author(s):  
Maxim-Jean Bâlcu
Keyword(s):  
Male Morphology

In addition to those described by Guţu (2002), the female with eggs of the species Apseudopsis arguinensis is redescribed in detail. Also, some remarks on male morphology are presented.  

Courtship displays and mounting calls are honest, condition-dependent signals that influence mounting success in Hermann's tortoises

2005 ◽  
Vol 83 (10) ◽  
pp. 1306-1313 ◽  
Author(s):  
P Galeotti ◽  
R Sacchi ◽  
M Fasola ◽  
D Pellitteri Rosa ◽  
M Marchesi ◽  
...  
Keyword(s):  
Frequency Modulation ◽  
Call Rate ◽  
Multiple Traits ◽  
Sexual Interaction ◽  
Courtship Intensity ◽  
Male Condition ◽  
Testudo Hermanni ◽  
Courtship Signals ◽  
Male Morphology ◽  
Rate Frequency

Like other terrestrial tortoises, the courtship behaviour of Hermann's tortoises (Testudo hermanni Gmelin, 1789) is based on a multiple signalling system that involves visual, olfactory, tactile, and acoustic signals. In this study, we analysed relationships between male morphology, hematological profile, courtship intensity, vocalizations, and mounting success in Hermann's tortoises breeding in semi-natural enclosures to investigate the effects of male condition on signals exhibited during courtship and on their mounting success. Results showed that mounting success of Hermann's tortoise males was positively affected by the number of sexual interactions/h, number of bites given to the female during interactions, and by call rate and frequency-modulation range. Call rate, frequency-modulation range, and number of sexual interaction/h increased with hematocrit value, while number of bites given to females decreased with leukocyte concentration. In conclusion, courtship signals exhibited by Hermann's tortoise males, including vocalizations, reliably reveal different components of male condition, and females may use these multiple traits to choose high-quality partners. This is the first study documenting the condition-dependent nature of tortoise courting signals and their effect on male mounting success.

New and little-known Eugryllacris from Yunnan, China (Orthoptera: Gryllacrididae: Gryllacridinae)

Zootaxa ◽  
2021 ◽  
Vol 5026 (4) ◽  
pp. 541-554
Author(s):  
ZI-XU YIN ◽  
SI-ZHONG SHEN
Keyword(s):  
New Species ◽  
Type Species ◽  
East China ◽  
Normal University ◽  
Male Morphology ◽  
First Time ◽  
A New Species

Eugryllacris species from Yunnan, China were investigated from 2018~2021. A new species, Eugryllacris tiga sp. nov. is described from China. The male morphology and ecology of E. cf. vaginalis Pictet & Saussure, 1893 and E. guomashan Ingrisch, 2018 are illustrated for the first time. The type species are deposited in Museum of Biology, East China Normal University (ECNU).  

Comparison of the morphology of the adult males of the rhizoecine, phenacoccine and pseudococcine mealybugs (Hemiptera: Sternorrhyncha: Coccoidea), with the recognition of the family Rhizoecidae Williams

Zootaxa ◽  
2012 ◽  
Vol 3291 (1) ◽  
pp. 1 ◽  
Author(s):  
CHRIS HODGSON
Keyword(s):  
Adult Male ◽  
Strong Support ◽  
Scale Insects ◽  
Adult Males ◽  
Phenacoccus Solenopsis ◽  
Maconellicoccus Hirsutus ◽  
The Past ◽  
Male Characters ◽  
The Family ◽  
Male Morphology

In the past, the morphology of adult males of Coccoidea has provided strong support for diagnosing the higher taxonstatus of scale insects (Coccoidea). In particular, studies on adult male morphology have produced some of the stron-gest evidence for considering the Putoidae and Eriococcidae (as then defined) as separate families from the Pseudo-coccidae. This paper uses adult male morphology to assess the relationships of the Pseudococcidae and the hypogaeicand myrmecophilous mealybugs. The latter most often are classified as a subfamily (Rhizoecinae) of the Pseudococ-cidae. In order to diagnose the latter taxa, the adult males of fifteen named species of hypogaeic rhizoecine mealybugs(Kissrhizoecus hungaricus Kozár & Konczné Benedicty, Rhizoecus cacticans (Hambleton), Rh. coffeae Laing, Rh.dianthi Green, Rh. falcifer Künckel d’Herculais, Rh. kazachstanus Matesova, Ripersiella cryphia (Williams), Ri.hibisci (Kawai & Takagi), Ri. kondonis (Kuwana), Ri. malschae (Williams), Ri. puhiensis (Hambleton), Capitisetellamigrans (Green) and Pseudorhizoecus proximus Green) plus two unidentified Ripersiella species are described. Inaddition, the adult males of a Xenococcus sp., three Eumyrmococcus spp. and two Neochavesia spp. are illustratedfrom previously published papers and the adult male of another Neochavesia sp. is described and illustrated. In orderto compare the diagnoses of the above taxa with that of adult males of Pseudococcidae (minus the Rhizoecinae), theadult males of two apterous pseudococcid mealybugs are described or redescribed: Asaphococcus agninus Cox andthe myrmecophilous Promyrmococcus dilli Williams, both belonging to the Pseudococcinae. In addition, threemacropterous Pseudococcidae, namely Phenacoccus solenopsis Tinsley (Phenacoccinae), Planococcus glaucus(Maskell) and Maconellicoccus hirsutus (Green) (Pseudococcinae) are also described and/or illustrated. Prior to thisstudy, the hypogaeic and myrmecophilous mealybugs generally were included in the subfamily Rhizoecinae of thePseudococcidae, with the hypogaeic mealybugs in tribe Rhizoecini and the myrmecophilous mealybugs in Xenococ-cini. Based on the present study and on phylogenetic data, it is concluded that the rhizoecine mealybugs form a sepa-rate family from the Pseudococcidae — Rhizoecidae Williams. This family is considered here to include twosubfamilies, Rhizoecinae Williams and Xenococcinae Tang. Based on adult male characters, there is little support forthe present generic divisions of the Rhizoecinae. Keys are given for separating the adult males of Rhizoecidae from those of Pseudococcidae, and for separating the known adult males within each subfamily.

A new case of West-East differentiation of the freshwater fauna in Northern Eurasia: the Pleuroxus  trigonellus species group (Crustacea: Cladocera: Chydoridae)

Zootaxa ◽  
2018 ◽  
Vol 4532 (4) ◽  
pp. 451
Author(s):  
PETR G. GARIBIAN ◽  
ANNA N. NERETINA ◽  
ALEXEY I. KLIMOVSKY ◽  
ALEXEY A. KOTOV
Keyword(s):  
Species Group ◽  
Northern Eurasia ◽  
Significant Progress ◽  
General Morphology ◽  
Cladoceran Species ◽  
Species Groups ◽  
Freshwater Fauna ◽  
Male Morphology ◽  
Western Portion ◽  
A New Species

Cladocerans (Crustacea: Branchiopoda) of Northern Eurasia traditionally belong to the most intensively studied groups of freshwater microcrustaceans. However, despite a significant progress in our knowledge of different aspects on their biology, some intriguing questions remain unresolved. The hypothesis of cladoceran faunas differentiation between the western and eastern parts of Northern Eurasia agrees with the continental endemism concept. But to date few cladoceran species groups have been investigated through the whole North Eurasian range. Our current work contributes to the confirmation of this hypothesis through a revision of the poorly studied Pleuroxus trigonellus species group. Based on material from Europe, we redescibed morphology of Pleuroxus trigonellus (O.F. Müller, 1776) s.str. and found that its distribution range is potentially restricted to the western portion of Northern Eurasia. At the same time, morphologically similar populations from the eastern portion of Eurasia belong to a new species, Pleuroxus yakutensis sp. nov. These two species are basically similar in general morphology of parthenogenetic and gamogenetic females, but have clear differences in the male morphology. Additionally we offer an identification key for discrimination of the P. trigonellus group from P. uncinatus (Baird, 1850) according to morphological features of the males. 

Evolution of male morphology in the ant genus Cardiocondyla

2005 ◽  
Vol 37 (1) ◽  
pp. 278-288 ◽  
Author(s):  
Jürgen Heinze ◽  
Andreas Trindl ◽  
Bernhard Seifert ◽  
Katsusuke Yamauchi
Keyword(s):  
Male Morphology

Molecular systematics, morphological analysis, and hybrid crossing identify a third taxon, Aedes (Halaedes) wardangensis sp.nov., of the Aedes (Halaedes) australis species-group (Diptera: Culicidae)

1998 ◽  
Vol 76 (7) ◽  
pp. 1236-1246 ◽  
Author(s):  
Reinhart A Brust ◽  
J William O. Ballard ◽  
Felice Driver ◽  
Diana M Hartley ◽  
Nora J Galway ◽  
...  
Keyword(s):  
New Zealand ◽  
Dna Sequences ◽  
Morphological Analysis ◽  
New South ◽  
New South Wales ◽  
South Australia ◽  
Species Group ◽  
South Wales ◽  
Male Morphology ◽  
Cytochrome Oxidase Ii

Phylogenetic and morphological analyses, male morphology, and hybrid crossing indicate that a population from Wardang Island, South Australia, is distinct from the monophyletic series of populations of Aedes (Halaedes) australis (Erichson) 1842 from Victoria, Tasmania, New South Wales, and New Zealand. The name Aedes (Halaedes) wardangensis has been assigned to the new species. Phylogenetic analysis of DNA sequences from the cytochrome oxidase II and internal transcribed spacer loci support the resurrection of Aedes (Halaedes) ashworthi Edwards, 1921 (Brust and Mahon, 1997). Aedes ashworthi is known only from Western Australia and was found to be infertile when crossed with Ae. wardangensis from South Australia and Ae. australis from New Zealand. The hybrid of Ae. australis from New South Wales × Ae. australis from New Zealand was fertile for three generations, documenting these as conspecific.

Two new species of the genus Kamimuria (Plecoptera: Perlidae) from China, with redescription of Kamimuria cheni Wu and Kamimuria Chungnanshana Wu

Zootaxa ◽  
2012 ◽  
Vol 3455 (1) ◽  
pp. 61 ◽  
Author(s):  
HAI-TAO SUN ◽  
YU-ZHOU DU
Keyword(s):  
New Species ◽  
Adult Male ◽  
Type Species ◽  
Type Material ◽  
Japanese Species ◽  
Diagnostic Characters ◽  
Generic Rank ◽  
Two New Species ◽  
Male Morphology ◽  
Insect Collection

Klapálek (1907) established Kamimuria as a subgenus of Perla, but later elevated it to generic rank (Klapálek 1912). Later, Klapálek (1923) designated Perla tibialis Pictet, 1841, a Japanese species, as the type species. Uchida & Isobe (1991) designated a neotype for K. tibialis and resurrected K. uenoi Kohno from synonymy. Sivec et al. (1988) redescribed the diagnostic characters of Kamimuria in reference to other Perlinae. It is a genus widespread in the Palaearctic and Oriental Regions, being particularly diverse in China. A total of 76 species have been described over the worldwide and includes 45 species residing in China (DeWalt et al. 2011, Sivec & Stark 2008, Sivec et al. 1988, 1997, Du et al. 1999, 2001, Du & Ran 2002, Du & Sivec 2004, 2005, Du & Wang 2005, 2007, Du 2006, Wu 1938, 1962, 1973). The type material of many species proposed by Wu (1935, 1936, 1938, 1940, 1947–1948) were lost because of the war, but for some species he designated neotypes (1962) which were deposited in the Institute of Zoology, Academia Sinica. Based on adult male morphology, two new species from China are described, and K. cheni Wu and K. Chungnanshana Wu are redescribed in this paper. The types of new species are deposited in the Insect Collection of Yangzhou University, Jiangsu, China.

New Dicerurini from Europe, mostly Sweden (Diptera: Cecidomyiidae, Porricondylinae)

Zootaxa ◽  
2019 ◽  
Vol 4559 (2) ◽  
pp. 245
Author(s):  
MATHIAS JASCHHOF ◽  
CATRIN JASCHHOF
Keyword(s):  
Czech Republic ◽  
New Species ◽  
Geographic Distribution ◽  
New Genus ◽  
Slovak Republic ◽  
Junior Synonym ◽  
New Information ◽  
Male Morphology ◽  
A New Species

The taxonomy of several genera of the tribe Dicerurini (subfamily Porricondylinae) is revisited, induced by the discovery of 11 new species in Malaise catches of various provenances. The bulk of the specimens interpreted here is of Swedish origin. Species described as new to science are Desertepidosis grytsjoenensis sp. nov. (from Sweden), D. robusta sp. nov. (Sweden), Linnaeomyia pratensis sp. nov. (Czech Republic), Neurepidosis ekdalensis sp. nov. (Sweden), N. emarginata sp. nov. (Sweden, Czech Republic), N. hybrida sp. nov. (Sweden), Tetraneuromyia brevipalpis sp. nov. (Sweden, Slovak Republic), T. discrepans sp. nov. (Sweden), T. errata sp. nov. (Sweden), and T. lapponica sp. nov. (Sweden). A new genus, Gardenforsia gen. nov., is introduced for G. oelandica sp. nov. (Sweden), a new species with regressive male morphology. The generic definitions of Desertepidosis Mamaev & Soyunov, 1989 (including Ubinomyia Mamaev, 1990 syn. nov. as new junior synonym) and Linnaeomyia Jaschhof & Jaschhof, 2015 are revised. A key to males of Desertepidosis is presented. New information on the morphology and geographic distribution is provided for Linnaeomyia hortensis Jaschhof & Jaschhof, 2015; Tetraneuromyia bulbifera Mamaev, 1964; and T. lamellata Spungis, 1987. 

Sexual morphology of male Sepsis cynipsea (Diptera: Sepsidae): lack of support for lock-and-key and sexually antagonistic morphological coevolution hypotheses

2005 ◽  
Vol 137 (5) ◽  
pp. 551-565 ◽  
Author(s):  
William G. Eberhard
Keyword(s):  
Female Choice ◽  
Alternative Hypothesis ◽  
Divergent Evolution ◽  
Abdominal Sternite ◽  
Sense Organs ◽  
Evolutionary Pattern ◽  
Wing Base ◽  
Defensive Responses ◽  
Species Specific ◽  
Male Morphology

AbstractTraits that function in male–female sexual interactions tend to diverge rapidly compared with other traits. Several hypotheses attempt to explain this evolutionary pattern. Predictions of two of these hypotheses, lock-and-key and sexually antagonistic morphological co-evolution, were tested by examining how two sets of species-specific male structures fit with female structures during courtship and copulation in the fly Sepsis cynipsea (L., 1758). Contrary to predictions of both hypotheses, neither the species-specific modifications of the male's front legs nor those of his genitalic surstyli were matched by modifications of the female structures with which they meshed (wing bases, 6th abdominal sternite); males damaged small patches of microtrichia on the female's wings with their legs, but the morphology of the female's wings and abdomen showed no sign of the defensive designs expected under antagonistic morphological co-evolution. Data regarding the alternative hypothesis of sexually antagonistic behavioral co-evolution by females in response to male morphology were less conclusive, but this hypothesis failed to explain the sustained, apparently stimulatory rhythmic squeezing by the male genitalia and the lack of female defensive responses to this squeezing. These movements of the male surstyli during copulation suggest that they function to stimulate the female. The wing base of the female has apparent sense organs near the sites contacted by the male, as expected under the alternative hypothesis of traditional female choice to explain rapid divergent evolution. The male's genitalic surstyli were also used in novel precopulatory interactions. A pair of previously undescribed processes at the bases of the surstyli probably grasp and may also rhythmically squeeze the female during copulation.

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