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First Record of Wormlion Vermileo Vermileo (Diptera: Vermileonidae) from Greece

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First Record of Wormlion Vermileo Vermileo (Diptera: Vermileonidae) from Greece ENTOMOLOGIA HELLENICA 28 (2019): 5-10 Received 23 July 2018 Accepted 23 January 2019 Available online 11 February 2019 SHORT COMMUNICATION First record of wormlion Vermileo vermileo (Diptera: Vermileonidae) from Greece ZOLTÁN PAPP1 AND ZOLTÁN SOLTÉSZ2,3,* 1H-1131 Budapest, Gyermek tér 4/E., Hungary 2Lendület Ecosystem Services Research Group, Centre for Ecological Research, Hungarian Academy of Sciences, H-2163 Vácrátót, Alkotmány u. 2–4, Hungary 3Department of Zoology, Hungarian Natural History Museum, H-1088 Budapest, Baross u. 13, Hungary ABSTRACT In this work, we present the first record of the species Vermileo vermileo from Greece. The larvae and pupae of Vermileo vermileo (Linnaeus, 1758) (Diptera, Vermileonidae) and Myrmeleon inconspicuus Rambur, 1842 (Neuroptera, Myrmeleontidae) species were collected from pits on a dry soil surface, in well-protected from rain places, from the Greek island of Thasos during the summer of 2017, in close proximity to Potos and Skala Potamias resort areas. The individuals were further kept under laboratory conditions for definite identification. According to available literature, the dipteran species V. vermileo is new for the Greek fauna. KEY WORDS: Vermileonidae, Myrmeleon inconspicuus, antlion, Thasos, pits. The family Vermileonidae, among the order 2006). The pits of the wormlion are steeper, of flies (Diptera), is rather limited regarding have a conical form, while in the case of the number of species. Worldwide, the known late instar larvae, their diameter is smaller ten genera comprise less than 80 described compared to that of antlion’s pitfalls species. In Europe, two genera (Lampromyia (Lackinger 1972, Devetak 2008a, b). and Vermileo) are represented by only nine Diameter of pitfall traps of early instar species (Stuckenberg 1965, 1998). wormlion larvae is on average 2.2 mm According to Santos (2008), the Vermileo (Hafez and El-Moursy 1956a), while it can genus is represented by only ten species reach up to 3.0–3.5 cm for late instar larvae, worldwide: 3 spp. from the Palearctic region based on the records during this laboratory (1 sp. from Greece, 1 sp. from southern breeding. On the other hand, diameter of France, and 1 sp. from the Iberian pitfall traps of well-developed antlion larvae Peninsula), 1 sp. from the Afrotropical can reach 4–7 cm depending on the species region, 3 spp. from the Neotropical region (Lackinger 1973). Wormlions prefer very and 3 spp. from the Nearctic region. fine-grained, sandy or dusty soil (especially The wormlion (Vermileonidae) larvae in shaded areas), while antlions are less are unique in the dipteran families as they selective and can be found in both fine and build pitfall traps similar to antlions coarse-grained soils (Devetak 2008a). The (Myrmeleontidae) and with their help they pits of wormlion larvae are always found in capture their prey (Wheeler 1930, Séméria groups, very often in dozens. *Corresponding author: [email protected] http://epublishing.ekt.gr | e-Publisher: EKT | Downloaded at 07/05/2019 15:46:33 | PAPP AND SOLTÉSZ: First record of Vermileo vermileo in Greece 6 Νewly-hatched wormlion larvae have an be seen. On the mesonotum, three average length of 2.5 mm (Hafez and El- longitudinal blackish-brownish stripes are Moursy 1956a), while for mature ones their characteristic. The abdomen of the male is length can reach over 12–14 mm prior slenderer than that of the female (Nagatomi pupation (Fig. 1). The colour of the larvae is and Iwata 1976), and bulkier at the end. The light yellowish, their body is translucid, and pedicel of the halters is yellow, while its the alimentary canal and its content is clubby capitulum is dark brown. The wings clearly visible and recognisable. The eighth are vitreous and strongly iridescent (Séguy abdominal segment terminates in four 1926). The males are generally smaller and conical fleshy lobes. The building of pitfall slenderer than females; their body length is trap is performed by the head, while in the 6–7 mm, while that of the females is 7–9 case of antlions the terminal setae of the mm. The wing expanse at males is usually abdomen has also an important digging role. 9.8–10.7 mm, while in the case of females is Total developmental period of larvae is 9.8–14 mm (Hafez and El-Moursy 1956b). extremely long (3 to 4 years) during which Under laboratory conditions, emergence several larval instars are included. The occurs around 9–11 am (Hafez and El- duration of the larval stage is largely Moursy 1956b). The adults have short life influenced by the quality and quantity of span, primarily restricted to reproduction. nutrients, as well as by climatic conditions (Séméria 2006). Development of the wormlion pupae lasts 9–10 days, depending on temperature (Le Faucheux 1961). FIG. 2. Lateral view of a female adult, Vermileo vermileo (photo: Z. L. Nagy). In this study, several wormlion larvae FIG. 1. Dorsal view of a late instar larva of were recorded and collected on the island of Vermileo vermileo (photo: Z. L. Nagy). Thasos, close to two resort villages: 21 larvae from the village of Potos which is Adults of V. vermileo emerge from the located near the sea coast (N40.61071°; end of May and early June in Europe, E24.60575°), on June 6, 2017, from fine- however, in Egypt emergence is achieved grained dry soil under a broad eaves, while much earlier due to climatic conditions 14 larvae near Skala Potamias (N40.70404°; (Hafez and El-Moursy 1956b). The adults E24.77604°), on June 8, 2017, in a are relatively small, bristless, and fragile Mediterranean shrubby habitat crossed by a insects (Fig. 2) with short, stylate type pathway, from dusty soil under a rock antennae (Nagatomi 1997, Devetak 2008a). protrusion. The pits of wormlion were well The first and second leg pair is lighter and protected from the rain and shaded in both less powerful, compared to the third one. collecting sites. At the collecting site in The body is shining dark brown or black, Potos, a second instar Myrmeleon while on the abdomen yellowish rings can inconspicuus Rambur, 1842 antlion larva www.entsoc.gr © 2019 Hellenic Entomological Society http://epublishing.ekt.gr | e-Publisher: EKT | Downloaded at 07/05/2019 15:46:33 | 7 ENTOMOLOGIA HELLENICA 28 (2019): 5-10 was also discovered [identification was 1989). The wormlions and antlions most based on Badano and Pantaleoni (2014)] in often avoid each other regarding their one of the pits of the wormlion colony (see habitat, which is largely explained by the red arrow on Fig. 3), which is rather different preference for fine-granular surprising, because according to the composition of soil substrates (Devetak literature this species generally lives in open 2008a). and rain-exposed habitats (Gepp and Hölzel FIG. 3. Pitfall traps of wormlion larvae (Vermileo vermileo) with various larval stages scattered under a roof in Potos (blue arrow: a pit of wormlions; red arrow: the pit of an antlion, Myrmeleon inconspicuus) (photo: Z. Papp). All larvae were collected from their using specific keys for wormlion and pits by sieving and maintained until adult antlion adults given by Séguy (1926), stage in the same soil from which they Nagatomi (1997), Séméria (2006), and by were collected under controlled conditions Aspöck et al. (1980), respectively. Adults at 20–25°C, 60–70% RH, and in shadow. of V. vermileo were maintained alive for a Smaller ant specimens as well as by fruit maximum of seven days at 16–20°C. flies (Drosophila melanogaster) were Until now, only one wormlion species was provided as food source. Larvae that known in Greece described from Crete, managed to develop until adult stage (one namely Vermileo ater Stuckenberg, 1965. antlion and 11 wormlion individuals) were According to the literature V. vermileo has identified up to species level (March 2018) been recorded in Portugal, Spain, France, www.entsoc.gr © 2019 Hellenic Entomological Society http://epublishing.ekt.gr | e-Publisher: EKT | Downloaded at 07/05/2019 15:46:33 | PAPP AND SOLTÉSZ: First record of Vermileo vermileo in Greece 8 Italy (including Sicily and Sardinia), Fauna Europaea. 2019. Vermileo vermileo Malta, Switzerland, Austria (Southern (Linnaeus, 1758): Distribution Europe Tyrol), Slovenia, Croatia and Bulgaria and wordwide. Available at: https://fauna- (Séguy 1926, Stuckenberg 1965, Ebejer eu.org/cdm_dataportal/taxon/23285b3e- 1995, Séméria 2006, Devetak 2008a, 4ac0-4a84-8f6a-92b62cf5299d (Accessed Fauna Europaea 2019), therefore this at January 2019). dipteran species is new for the Greek Gepp, J. and H. Hölzel. 1989. fauna. Ameisenlöwen und Ameisenjungfern. Die Neue Brehm Bücherei, Band 589, Acknowledgements A. Ziemsen Verlag, Wittemberg. 108 pp. We wish to acknowledge my sincere Hafez, M. and A.A. El-Moursy. 1956a. thanks to László Z. Nagy for photographs Studies on Desert Insects in Egypt. I. as well as Dr. Adrien Fónagy for the Field and Laboratory investigations on English translation, and Dr. Ferenc the wormlion, Vermileo vermileo L. Szentkirályi for useful comments. Last but Bull. Soc. Entomol. Egypte 40: 279– not least we would like to thank the two 299. anonymous reviewers for their insightful Hafez, M. and A.A. El-Moursy. 1956b. comments on the article. Studies on Desert Insects in Egypt. II. On the general biology of Vermileo References vermileo L. Bull. Soc. Entomol. Egypte 40: 333–348. Lackinger, H. 1973. Unterschiede im Aspöck, H., Aspöck, U. and H. Hölzel. Verhalten zwischen Larven einiger 1980. Die Neuropteren Europas. Eine Ameisenlöwenarten einschließlich des zusammenfassende Darstellung der Wurmlöwen (Vermileo vermileo) beim Systematik, Ökologie und Chorologie Sandfallenbau. Z. Arbgem. Oesterr. der Neuropteroidea (Megaloptera, Entomol. 24: 66–72. Raphidioptera, Planipennia) Europas. 2 Le Faucheux, M. 1961. Contribution à vols, 495 & 355 pp. Goecke & Evers, l'étude du cycle biologique de Krefeld, Germany. Vermileo Degeeri Macquart (Diptère: Badano, D.
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  • ISSUE 58, April, 2017
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