Morphometric variability of Clitellocephalus ophoni (Eugregarinida, Gregarinidae) in the intestines of Harpalus rufipes (Coleoptera, Carabidae)

Clitellocephalus ophoni (Tuzet and Ormieres, 1956) Clopton, 2002, is one of the parasites of a common ground beetle species, Harpalus rufipes (De Geer, 1774), inhabiting practically the entire temperate zone of Eurasia. Photographs of 177 gamonts and 74 syzygies of C. ophoni from specimens of three populations of H. rufipes collected from the countryside near Dnipropetrovsk (Ukraine), were analyzed according to 15 linear characteristics and 18 indices for gamonts and 6 indices for syzygies. The coefficient of variation (CV) for the majority of linear parameters for gamonts ranged between 28.2-71.3%. Out of 15 linear parameters, only 6 showed a normal distribution; the others showed a statistically significant asymmetry (the maximum indicators on the histogram of distribution were inclined to the area of minimum value). The distribution of all 18 morphological indices diverged from the norm. Two maximum indicators were registered in the disposition of the widest point of the protomerite and deutomerite. The minimum CV was registered for the ratio of gamont length to the length of its deutomerite. The size ratios of the primite and satellite in the syzygies were more constant than the morphological indices for the gamonts. The sex of the host does not affect the length of the protomerite and deutomerite, but does affect their width, the disposition of the nucleus and the widest point of the deutomerite. The length of the protomerite and deutomerite relative to the length of the gamont is better described through linear functions, while their width has a nonlinear dynamic and is better described through parabolic function. The ratio of morphometric indices to total length of C. ophoni gamonts is also better described through nonlinear functions. The data obtained on the morphological variability of C. ophoni needs to be compared with the results for artificially infected individuals of other Harpalus species.

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A distribution atlas of legally protected ground beetle species (Coleoptera: Carabidae) occurring in the Łódź Province, central Poland

Fragmenta Faunistica ◽

10.3161/00159301ff2013.56.2.089 ◽

2013 ◽

Vol 56 (2) ◽

pp. 89-112

Author(s):

Radomir Jaskuła ◽

Anna Stępień ◽

Przemysław Włodarczyk ◽

Iwona Słowińska-Krysiak

Keyword(s):

Ground Beetle ◽

Beetle Species ◽

Central Poland ◽

Distribution Atlas

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Towards Etho-Ecological Divergency and Niche Formation in the Ground Beetle Species Elaphrus riparius, aureus and ulrichi (Coleoptera: Carabidae)

Entomologica Germanica ◽

10.1127/entom.germ/2/1976/209 ◽

1976 ◽

Vol 2 (3) ◽

pp. 209-216

Author(s):

Thomas Bauer ◽

Monika Bath

Keyword(s):

Ground Beetle ◽

Beetle Species ◽

Niche Formation

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The Adequacy of Some Collecting Techniques for Obtaining Representative Arthropod Sample in Dry Grasslands

Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis ◽

10.11118/actaun201462010167 ◽

2014 ◽

Vol 62 (1) ◽

pp. 167-174 ◽

Cited By ~ 2

Author(s):

Jana Niedobová ◽

Zdeněk Faltýnek Fric

Keyword(s):

Ground Beetle ◽

Landscape Management ◽

Pitfall Traps ◽

Beetle Species ◽

Relict Species ◽

Important Indicator ◽

Leaf Beetles ◽

Rove Beetles ◽

Dry Grasslands ◽

Ecological Requirements

The number of remarkable species on a locality is an important indicator of locality value. The ecological requirements of the rare species may help to target correct landscape management activities. Our objective was to find out if standardly used capture methods for different group of invertebrate are able to detect really representative composition of species including rare taxa. Our experiment was carried out at the Moravský kras Protected Landscape Area (Macošská and Vilémovická stráň slope) where secondary dry grasslands are typical for each investigated locality. We used five groups of invertebrates (spiders, ground beetles, rove beetles, leaf beetles and weevils) and three capture methods (pitfall traps, sweeping on vegetation and yellow Möricke traps). Arthropods were determined and classified according to their rarity. Using the three capture methods, we obtained in total 127 spider species (Areneae), 31 ground beetle species (Carabidae), 29 rove beetle species (Staphylinide), 52 leaf beetle species (Chrysomelidae) and 55 weevil species (Curculionidae).Results showed that the different capture methods significantly influenced number of detected remarkable species. It was statistically proved for spiders (P = 0.025), weevils (P = 0.038) and marginally also for rove beetles (P = 0.051). Spiders of climax (C species) and semi-natural (SN species) habitats were rather detected by pitfall traps, whereas spiders of disturbed habitats were collected by sweeping on vegetation and Möricke yellow pans eventually. Relict species of weevils (R species) were detected by pitfall traps, typical species (T species) were collected by Möricke yellow pans and expansive species (E species) were found by sweeping on vegetation.

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Winklerites serbicus, a new endogean species of ground beetles (Coleoptera: Carabidae: Bembidiini) from southeastern Serbia

Archives of Biological Sciences ◽

10.2298/abs1302773c ◽

2013 ◽

Vol 65 (2) ◽

pp. 773-780

Author(s):

S. Curcic ◽

D. Antic ◽

T. Radja ◽

S. Makarov ◽

B. Curcic ◽

...

Keyword(s):

New Species ◽

Ground Beetle ◽

Ground Beetles ◽

Beetle Species ◽

Southeastern Part ◽

Male And Female ◽

Female Genital ◽

Southeastern Serbia

A new endogean bembidiine ground beetle species, Winklerites serbicus sp. n., from a cave in the southeastern part of Serbia is both described and diagnosed. Male and female genital structures and other taxonomically important characters are illustrated. The new species is clearly distinct from its closest congeners. Fifteen species of the genus so far known are arranged in six groups. The new species is both endemic and relict, inhabiting southeastern Serbia only.

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A new endemic ground beetle species of the genusTapinopterusSchaum (Pterostichini: Carabidae: Coleoptera) from the Balkan Peninsula, with some notes on its ecology

Journal of Natural History ◽

10.1080/00222930802141838 ◽

2008 ◽

Vol 42 (31-32) ◽

pp. 2117-2125

Author(s):

Srećko B. Ćurčić ◽

Wolfgang Waitzbauer ◽

Pamela Zolda ◽

Božidar P. M. Ćurčić ◽

Branislava Mihajlova

Keyword(s):

Ground Beetle ◽

Balkan Peninsula ◽

Beetle Species

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Computerized Simulation of Transmission Errors and Shift of Bearing Contact for Hypoid Gear Drive With Conjugate Gear Tooth Surfaces

20th Design Automation Conference: Volume 1 — Dynamic Mechanical Systems; Geometric Modeling and Features; Concurrent Engineering ◽

10.1115/detc1994-0094 ◽

1994 ◽

Author(s):

Faydor L. Litvin ◽

Jui-Sheng Chen ◽

Thomas M. Sep ◽

Jyh-Chiang Wang

Keyword(s):

Gear Tooth ◽

Low Noise ◽

Linear Functions ◽

Hypoid Gear ◽

Transmission Errors ◽

Gear Drive ◽

Bearing Contact ◽

Parabolic Function ◽

Tooth Surfaces ◽

Computerized Simulation

Abstract Computerized investigation of the influence of alignment errors on the transmission errors and the shift of the bearing contact is proposed. The investigation is performed for an imaginary hypoid gear drive with conjugate tooth surfaces. It is proven that the transmission functions caused by misalignment are periodic discontinues almost linear functions with the frequency of cycle of meshing. The above functions can be totally absorbed by a predesigned parabolic function. The shift of the bearing contact caused by misalignment has been determined as well. The performed investigation is based on computerized simulation of meshing and contact of gear tooth surfaces. The machine-tool settings for the generation of the designed gear drive have been determined. Numerical example that illustrates the developed theory is given. The performed investigation allows to determine the influence of gear misalignment on transmission errors, and design a low-noise hypoid gear drive by a properly predesigned parabolic function of transmission errors.

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