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1.
Antlion Dendroleon pantherinus (Fabricius, 1787) (Neuroptera: Myrmeleontidae) in Slovenia
Dušan Devetak, Jan Podlesnik, Franc Janžekovič, 2010, izvirni znanstveni članek

Opis: The distribution of the European antlion species, Dendroleon pantherinus (Fabricius), in Slovenia with some notes on biology is presented.
Ključne besede: zoologija, volkci, razširjenost, Slovenija, zoology, antlions, distribution, Slovenia
Objavljeno v DKUM: 10.07.2015; Ogledov: 1438; Prenosov: 17
URL Povezava na celotno besedilo

2.
Larval morphology of the antlion Myrmecaelurus trigrammus (Pallas, 1771) (Neuroptera, Myrmeleontidae), with notes on larval biology
Dušan Devetak, Vesna Klokočovnik, Saška Lipovšek Delakorda, Elisabeth Bock, Gerd Leitinger, 2013, izvirni znanstveni članek

Opis: Morphology and behaviour of third instar larvae of the Holomediterranean antlion species Myrmecaelurus trigrammus (Pallas) are described. Larvae are facultative pit-builders, they either ambush their prey at the surface, or dig pitfall traps that prey fall in to. Dark brown spots on dorsal and ventral sides of the head and on dorsal side of the thorax are charac-teristic of the larvae. Eye tubercles are not prominent. Jaws are equipped with long bristles, campaniform sensilla, sensilla coeloconica, and digitiform sensilla. A unique feature is the shape of the tips of all three teeth that is screw-like with a polyhedral surface. The body surface is covered with longitudinally grooved bristles and plumose hairs. On the tip of the antennae and on terminal and subterminal parts of labial palps sensilla basiconica occur. On the 9th abdominal segment there are two bulges, each of them bearing four digging bristles. Non-prominent eye tubercles and numerous mandibular bristles are morphological traits of pit-builders. Most of the behavioural traits are related to pit builders, whereas forward movement, waiting for prey without a pit and frequent changing of ambush location are traits of non-pit builders.
Ključne besede: zoologija, volkci, morfologija, Neuroptera, zoology, antlions, morphology, Neuroptera
Objavljeno v DKUM: 10.07.2015; Ogledov: 1213; Prenosov: 90
URL Povezava na celotno besedilo

3.
Sand as a medium for transmission of vibratory signals of prey in antlions Euroleon nostras (Neuroptera: Myrmeleontidae)
Dušan Devetak, Bojana Mencinger Vračko, Miha Devetak, Marko Marhl, Andreja Špernjak, 2007, izvirni znanstveni članek

Opis: European pit-building antlions (Euroleon nostras/ Geoffroy in Fourcroy/) detect their prey by sensing the vibrations that prey generate during locomotory activity. The behavioural reactions and some of the physical properties of substrate vibrations in sand are measured to observe signal transmission through the substrate. The frequency range of the signals of four arthropod species (Tenebrio molitor, Pyrrhocoris apterus, Formica sp. and Trachelipus rathkei) is 0.1-4.5 kHz and acceleration values are in the range ▫$400 {mu}m s^{-2} to 1.5 mm s^{-2}$▫. Substrate particle size and the frequency of prey signals both influence the propagation properties of vibratory signals. The damping coefficient at a frequency 300 Hz varies from 0.26 to 2.61 dB ▫$cm^{-1}$▫ and is inversely proportional to the size of the sand particle. The damping coefficient is positively correlated with the frequency of the pulses. Vibrations in finer sand are attenuated more strongly than in coarser sand and, consequently, an antlion detects its prey only at a short distance. The reaction distance is defined as the distance of the prey from the centre of the pit when the antlion begins tossing sand as a reaction to the presence of prey. The mean reaction distance is 3.3 cm in the finest sand (particle size ▫$le 0.23 mm$▫) and 12.3 cm in coarser sand (particle size 1-1.54 mm). The most convenient sands for prey detection are considered to be medium particle-sized sands.
Ključne besede: biology, zoology, receptors, chordotonal organs, vibrations, vibratory signals, transmission of vibrations, reception of vibrations, electrophysiology, substrate vibration, antlions, Myrmeleontidae, sand, substrate vibration, particle size
Objavljeno v DKUM: 07.06.2012; Ogledov: 1877; Prenosov: 93
URL Povezava na celotno besedilo

4.
Larval morphology of the antlion Neuroleon microstenus (McLachlan, 1898) (Neuroptera, Myrmeleontidae), with notes on larval biology
Dušan Devetak, Saška Lipovšek Delakorda, Maria Anna Pabst, 2010, izvirni znanstveni članek

Opis: Laval stages of the Mediterranean antlion species Neuroleon microstenus (McLachlan) are described and illustrated. Larvae do not build pitfall traps. They pursue prey by digging in sand backwards and waiting a prey. Second and third instar larvae move backwards or forwards on sand surface, whilst first instar larvae only forwards. Characteristic for the larvae of N. microstenus - like for other non-pit-builders - are prominent eye tubercles and sparse mandibular bristles. On the abdominal tip two bulges occur, each with four digging bristles. On the dorsal side of the head of second and third instar larvae black pigmentation occur forming "V" mark. Campaniform sensilla, sensilla coeloconica and sensilla basiconica are recognized for the first time in antlion larvae.
Ključne besede: zoology, antlions, morphology
Objavljeno v DKUM: 07.06.2012; Ogledov: 1840; Prenosov: 132
URL Povezava na celotno besedilo

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