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Research Article
Review of the Psychodinae from Mallorca, Spain, with description of Pericoma unipennata, sp. n. (Diptera, Psychodidae)
expand article infoGunnar Kvifte, Morten Stokkan, Rüdiger Wagner§
‡ University Museum of Bergen, Bergen, Norway
§ University of Kassel, Kassel, Germany
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Abstract

We review the Psychodinae of Mallorca, recognising fifteen species based on recent collections and available literature. Previously unpublished data is presented for eleven species, of which Neoarisemus ibericus Wagner, 1978, Mormia tenebricosa (Vaillant, 1954), Clogmia albipunctata (Williston, 1893), Lepiseodina rothschildi (Eaton, 1913), Paramormia ustulata (Walker, 1856), Philosepedon pyrenaicus Vaillant, 1974 and Psychoda (Psycha) grisescens Tonnoir, 1922 are first records for Mallorca. An old record of Pericoma trifasciata (Meigen, 1804) is considered doubtful. Pericoma unipennata sp. n is described and illustrated based on a male collected at Deía. Distributional data are reviewed for all newly recorded species. Based on the Psychodinae fauna, the zoogeographical affinities of Mallorca are briefly discussed.

Keywords

Moth flies, Balearic Isles, new species, faunistics, distribution, check list

Introduction

The Psychodidae (moth flies and sand flies) are a species-rich and widespread group of small insects mainly associated with humid habitats. The most thoroughly studied faunas of the group are found in Europe, from where more than 500 species have been described and new discoveries continue to be made (Wagner 2004, Wagner and Kvifte 2015). The most poorly studied moth fly faunas of Europe are those of the Iberian peninsula (Wagner 2001) and the Balearic islands of Spain.

The most thoroughly studied moth flies from the Balearic islands belong to the subfamily Phlebotominae, the sand flies. On Mallorca, the largest of the Balearic islands, phlebotomine sand flies have received much attention due to their significance in veterinary medicine as vectors of canine leishmaniasis. This disease is widespread and long established, to the point that some local dog breeds have evolved resistance to the parasite (Solano-Gallego et al. 2000). Four species of Phlebotomus and one of Sergentomyia have been recorded from the island, of which Phlebotomus ariasi Tonnoir, 1921 has been suggested as a doubtful record (Alcover et al. 2014).

Other subfamilies of Psychodidae have been studied far less. Wagner (1990) listed a single species, namely Pericoma barbarica Vaillant, 1955 based on Vaillant (1978). Wagner et al. (2002) further included a record of Pericoma trifasciata (Meigen, 1818), most likely based on a typographical error in Vaillant (1978). The P. trifasciata record was not mentioned by Wagner (2004), who instead listed Psychoda minuta Banks, 1894, P. phalaenoides (Linnaeus, 1758), P. (Tineria) alternata Say, 1824 and P. (Tinearia) lativentris Berdén, 1952 based on unpublished material (the latter two placed in Tinearia Schellenberg, 1803, treated by Wagner 2004 as a genus).

In the present study, we review existing records of Mallorcan Psychodinae and present new material for eleven species; seven of which are previously unknown from Mallorca. In addition, we describe Pericoma unipennata sp. n as new to science.

Material and methods

Specimens were collected mainly by sweep netting and with aspirators from vegetation near the presumed larval habitats and preserved in 70–100% alcohol. Male specimens were sorted, dissected and mounted on slides in euparal (material in coll. ZFMK and ZMUB) or Canada balsam (material in coll. RW). Morphological terminology is according to Quate and Brown (2004) and Kvifte (2014, 2015). The „median moveable appendage“ in Kvifte et al. (2013) is here recognised as a parameral sclerite. Measurements are given in µm with an accuracy of 3 µm; except wing length which is given in mm to an accuracy of 100 µm.

Both literature records and new material that we have examined are included in our present checklist. Tribe-level classification is given according to Duckhouse (1987), while genus-level taxonomy is according to Wagner (2004) except where noted otherwise in the text. Species recorded as new to Mallorca are marked with an asterisk (*).

The material is deposited in the following collections:

RW Private collection of Rüdiger Wagner, Kassel

ZFMK Alexander-König Zoologischer Forschungsmuseum, Bonn, Germany

ZMUB Entomology Collections, Dept. of Natural History, University Museum of Bergen, Bergen, Norway

Species list

Maruinini

Neoarisemus ibericus Wagner, 1978

First record from Mallorca

Puigpunyant, 39.6167°N, 2.5167°E, 6.x.1981, H. Malicky leg. 1♂ (RW).

Remarks

Previously only recorded from the type locality in northern Spain.

Mormiini

Mormia tenebricosa (Vaillant, 1954)

First records from Mallorca

Calobra, 39.85°N, 2.8°E, 9.v.1978, 90 m a.s.l., H. Malicky leg. 1♂ (RW);

Deiá, town fountain, 39.748072°N, 2.643385°E, 8.ii.2015, G.Kvifte, M. Stokkan & C. Garcia leg. 1♂ (ZFMK);

Puigpunyent, 39.62°N, 2.85°E, 12.v.1978, 200m a.s.l., H. Malicky leg., 1♂; same but 1.X.1979, 6 ♂♂; same but 6.x.1979, 6♂♂ (all RW);

South slope of Piug Major, north of Soller, 39.783°N, 2.767°E, 7.–9.v.1978, 700 m a.s.l., H. Malicky leg. 2♂♂ (RW).

Remarks

Previously known from France, mainland Spain, Italy, Morocco and Algeria (Vaillant 1974). The generic and subgeneric classification of Mormiina is unstable and requires revision; therefore the placement in Mormia may change.

Paramormiini

Clogmia albipunctata (Williston, 1893)

First records from Mallorca

Esporles, IMEDEA research center, 39.666438°N, 2.580863°E, 13.iv.2015, M. Stokkan leg. 1♀ (ZMFK);

E of Puigpunyent, 39.616667°N, 2.85°E, 1.x.1979, 200m a.s.l., H. Malicky leg. 1♀; same but 6.x.1979, 4♀♀ (all RW).

Remarks

A widespread near-cosmopolitan species, first recorded from Spain by Tonnoir (1920) under the synonym Telmatoscopus meridionalis (Eaton, 1894). Its biology is summarised in Boumans et al. (2009) and Ježek et al. (2012); for a review of its taxonomy see Ibañez-Bernal (2008).

Lepiseodina rothschildi (Eaton, 1912)

First record from Mallorca

SW Pollensa, 39.8833°N, 2.9833°E, 3–5.x.1981, H. Malicky leg. 1♂ (RW).

Remarks

Placed in Lepiseodina Enderlein, 1937 (type species Psychoda tristis Meigen, 1830) by Ježek (1990) because of its asymmetric genitalia. The placement in Clogmia by Ježek (1984), Vaillant (1989) and Wagner (2004) may be a valid option to consider for the future when further character systems are explored.

Previous records are from Austria, Belgium, Czech Republic, France, Germany, Great Britain, Ireland and Slovakia (Oboňa and Ježek 2012).

Paramormia ustulata (Walker, 1856)

First records from Mallorca

Banyalbufar, 39.691635°N, 2.514367°E, 25.x.2012, G.Kvifte leg. 1♂1♀ (ZMUB);

Pond west of Cala Figuera, 39.335635°N, 3.152597°E, 11.ii.2015, G.Kvifte leg, 1♂ (ZFMK).

Remarks

A widespread species or complex of species occurring in the Holarctic region. Ježek and Yağci (2005) list occurences from the following countries: Afghanistan, Algeria, the Azores, Belgium, Bosnia-Herzegovina, Bulgaria, the Canary Islands, China, Corsica, Czech Republic, Denmark, France, Germany, Great Britain, Greece, Hungary, Iran, Ireland, Israel, Italy, Macedonia, Madeira, Mongolia, Morocco, the Netherlands, Olanda island, Poland, Romania, Sardinia, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Tunisia, Turkey and the USA.

Pericomaini

Pericoma unipennata Kvifte, Stokkan & Wagner, sp. n.

Type material

Holotype male. Deiá, town fountain, 39.748072°N, 2.643385°E, 8.ii.2015, G.Kvifte, M. Stokkan & C. Garcia leg (ZMUB).

Diagnosis. Pericoma unipennata can be separated from all other Pericoma species on the presence of one feather-tipped and four spatulate tenacula on each surstylus, as well as the following combination of characters: parameral sheath with shallow U-shaped apical indentation 1/6th as deep as width of parameral appendage base, gonostyle with narrow distal part 1/4th as long as broad basal part, distiphallic spatula with sclerotized side margins not converging apically, parameral appendage concave at lateral sides with distal 1/8th protruding over distiphallic spatula.

Description

Male (n=1). Head (Fig. 1A) longer than wide; vertex rounded with posterior lobe pointed, about half length of head; eyebridge comprising four rows of facets, separated by five facet diameters; interocular suture broadly V-shaped with median swelling; 7 supraocular setae present, 3 on ventral side and 4 on dorsal side; frontal scar patch inversely T-shaped, reaching level of uppermost facet row of eyebridge; clypeus subrectangular, weakly concave at anterior margin, densely setose, not protruding in front of level of eyes; palp with 4th segment fleshy, corrugated, length of palpus segments 93 : 106 : 129 : 231; labellum fleshy, micropilose with 11 larger setae; antennae with 14 fusiform flagellomeres; scape cylindrical, pedicel elongate globular to barrell-shaped; ascoids present on flagellomeres 4-8; flagellomere 14 with apiculus about as long as base of segment; length of antennal segments 69 : 63 : 48 : 45 : 45 : 42 : 42 : 42 : 42 : 42 : 36 : 36 : 33 : 27 : 24 : 36.

Figure 1.

Pericoma unipennata sp. n., holotype male. A Head B Wing C Aedeagus D Male genitalia E Tenacula. The following abbreviations are used: bp – basiphallus, c r – cercal region, dp lm – distiphallic lateral margin, dp s – distiphallic spatula, f t – feathery tenacula, gcx – gonocoxite, gst – gonostyle, hyp – hypandrium, pm – parameral sclerite, pm j – parameral joint, pms – parameral sheath, s t – spatuliform tenacula.

Thorax without accessory organs; mesonotum and scutellum covered in setae alveoli except on lateral margins; anepisternum and laterotergite covered with setae alveoli; coxae and trochanters with dorsal and ventral stripes of setae alveoli, mid coxa with apicoanterior setose projection; legs without special features;

Wing (Fig. 1B) 2.3 mm long, subovate, membrane without setation or infuscation; radial fork very slightly distad of medial fork, both slightly distad of CuA2; C with two breaks; Sc weakly curved towards C; apical section of R2 curved anteriorly; wing apex between R4 and R5; medial fork incomplete; apical section of CuA2 curved posteriorly; jugum obtuse;

Genitalia (Fig. 1C, D) with hypandrium of even width; aedeagus (Fig. 1D) with basiphallus compressed laterally; distiphallus consisting of two phallomeres forming a spatula with sclerotized lateral margins, lateral margins not converging distally; parameral sheath fused with gonocoxites basally, distally narrowing to nearly half its width at base; distally with narrow median incision; parameral sclerite meeting distal section of basiphallus, jointed to parameral sheath with slightly curved transverse band-like sclerite; parameral sclerite half length of distiphallus, consisting of two fused sclerites which are concave laterally, median suture complete; gonocoxites (Fig. 1C) stout, reniform, parabasal process absent but setose field present near connection with parameral sheath; gonocoxal condyles apparently fused with parameral sheath, gonostyle (Fig. 1C) with basal four 5ths liver-shaped, stout, distal 5th pointed, weakly sinous; epandrium slightly wider than long, expanding distally, number of apertures not discernable in specimen, carrying sparse hairs on ventral surface; surstyli about as long as epandrium, with lateral inner third more weakly sclerotized and densely micropilose; apex of surstylus with five aseriate tenacula of which one apical is feathery at the apex, four subapical tenacula spatulate; hypoproct obtusely isosceles trapezoid, micropilose; epiproct oval, densely pilose.

Etymology

unipennata = with one feather; refers to the presence of a single feather-tipped and four spatulate tenacula on its surstyli.

Biology

The specimen was collected at a spring with many bryophytes growing in a seepage stream. Bryophyte material was collected and extracted, however, no psychodid larvae or pupae were found.

Pericoma barbarica Vaillant, 1955

New records

Calobra, 39.85°N, 2.8°E, 9.v.1978, 90m a.s.l., H. Malicky leg. 1 ♂ (RW);

Deiá, town fountain, 39.748072°N, 2.643385°E, 8.ii.2015, G.Kvifte, M. Stokkan & C. Garcia leg. 3♂♂ (ZMUB);

Esporles, Torrent de San Vic, 39.670459°N, 2.569193°E, 11.ii.2015, G.Kvifte leg. 1♂ (ZMFK);

Puigpunyent, 39.616667°N, 2.85°E, 15.v.1978, 200m a.s.l., H. Malicky leg. 12 ♂♂; same but 1.x.1979, 5 ♂♂; same but 6.x.1979, 2 ♂♂ (all RW);

South slope of Piug Major, north of Soller, 39.783333°N, 2.766667°E, 7.–9.v.1978, 700 m a.s.l., H. Malicky leg. 11♂♂ (RW).

Literature record

Vaillant (1978).

Remarks

This species was described from Algeria and subsequently recorded from Mallorca by Vaillant (1978). It also occurs in mainland Spain and in North Africa (Vaillant 1978).

Pericoma trifasciata (Meigen, 1818)

Literature record

Wagner et al. (2002).

Remarks

Vaillant (1978) wrote “[Pericoma] trifasciata ist ebenfalls gemein auf der Mallorca-Insel [...]” (“trifasciata is also common on the island of Mallorca”) in the paragraph summarizing the geographical distribution of Pericoma barbarica Vaillant, 1955; this is probably a lapsus as Mallorca is not mentioned in the species account for Pericoma trifasciata. No other records are available in the literature prior to the listing by Wagner et al. (2002), which was based on Vaillant (1978). In Wagner (2004) and the present paper we deem the records from the Baleares to be doubtful and in need of verification through examination of specimens.

Psychodini

Philosepedon pyrenaicus Vaillant, 1974

First records from Mallorca

Deiá, town fountain, 39.748072°N, 2.643385°E, 8.ii.2015, G.Kvifte leg. 1♂ (ZMFK);

Esporles, town fountain, 39.669519°N, 2.576953°E, 10.ii.2015, G.Kvifte leg. 1♂ (ZMFK);

Palma de Mallorca, 39.570725°N, 2.641432°E, 7.ii.2015, G.Kvifte leg. 3♂1♀ (2♂ ZMFK, 1♂1♀ZMUB).

Remarks

The males recorded here were identified as Philosepedon pyrenaicus according to the key in Vaillant (1974) because of the eyes separated by three facet diameters, the wing “mittwinkel” 105° and the left phallomere of the aedeagus being longer than the right. However, the specimens differ in that the 1st flagellomere is longer than the combined length of the scape and pedicel, and the eyebridge is two facet rows wide at several points. We deem these differences not to be taxonomically meaningful, as the differences in proportions and eyebridge composition could be interpreted as interspecific variation.

Psychoda (Psychodocha) cinerea Banks, 1894

Literature record

Wagner (2004)

New records

Cala Figuera, 39.332245°N, 3.166440°E, 11.ii.2015, G. Kvifte leg. 2♂♂ (ZMFK);

Deiá, town fountain, 39.748072°N, 2.643385°E, 8.ii.2015, G.Kvifte, M. Stokkan & C. Garcia leg. 1♂ (ZMUB);

Esporles, Torrent de San Vic, 39.670459°N, 2.569193°E, 10.ii.2015, G.Kvifte leg. 1♂ (ZMFK).

Psychoda (Psychodocha) gemina (Eaton, 1904)

Literature record

Wagner (2004)

Psychoda (Psychoda) phalaenoides (Linnaeus, 1758)

Literature record

Wagner (2004).

Psychoda (Psycha) grisescens Tonnoir, 1922

First records from Mallorca

Esporles, Torrent de San Vic, 39.670459°N, 2.569193°E, 11.ii.2015, G.Kvifte leg. 1♂.

Remarks

Recorded from Algeria, Austria, Belgium, Bosnia-Herzegovina, Czech Republic, Denmark, the Faroe Islands, France, Germany, Great Britain, Greece, Hungary, Ireland, Italy, Morocco, the Netherlands, Norway, Slovakia, Slovenia, Sweden, Tunisia and Turkey (Andersen 1999, Ježek 2004, Ježek and Yağci 2005).

Psychoda (Psychodula) minuta Banks, 1894

Literature record

Wagner (2004).

New record

Esporles, Torrent de San Vic, 39.670459°N, 2.569193°E, 10.ii.2015, G.Kvifte leg. 1♂.

Psychoda (Tinearia) alternata +Say, 1824

Literature record

Wagner (2004).

New record

Esporles, town fountain, 39.669519°N, 2.576953°E, 10.ii.2015, G.Kvifte leg. 1♀ (ZMFK).

Remarks

Tinearia Schellenberg, 1803 was treated as a genus by Wagner (2004) following Ježek (1977). This species group is undoubtedly monophyletic, however based on morphology and some analyses of molecular data it appears to be deeply nested within Psychoda s.l. (Vaillant 1990, Espindola et al. 2012, Kvifte and Andersen 2012, Kvifte unpubl.). Inclusion of Tinearia as a subgenus within Psychoda would thus allow ease of identification of monophyletic units, whereas recognising Tinearia as a separate taxon would render Psychoda paraphyletic. For a discussion of the monophyly criterion in supraspecific taxonomy, see Komarek and Beutel (2006).

Psychoda (Tinearia) lativentris Berdén, 1952

Literature record

Wagner (2004)

Remarks

For genus taxonomy, see remarks under Psychoda alternata above.

Discussion

The material examined in the present study was collected opportunistically and does not reflect the diversity of suitable habitats on Mallorca. Nevertheless, a few preliminary conclusions about the diversity and zoogeographic affinities of the fauna can be made.

Most of the species encountered are widespread European, Holarctic or even cosmopolitan species (Clogmia albipunctata, Paramormia ustulata, Psychoda spp. and arguably Lepiseodina rothschildi). Four species appear to have more limited distributions as local West Mediterranean elements, namely Neoarisemus ibericus, Mormia tenebricosa, Pericoma barbarica and Philosepedon pyrenaicus. A single species, Pericoma unipennata sp. n., has yet to be recorded outside of Mallorca but may have been overlooked elsewhere.

Our records of Neoarisemus ibericus and Philosepedon pyrenaicus are the first since the original descriptions, which in both cases were based on very few specimens collected in Northern Spain: Montes Universales and the Pyrenees respectively. The records from Mallorca represent a major range extension for both species, suggesting them to be more widespread than previously expected and that they may have been overlooked elsewhere.

Both M. tenebricosa and P. barbarica have similar distribution patterns; occurring on the north and south coasts of the West Mediterranean. Both species appear widespread in North Africa, having been recorded from Morocco, Algeria and Tunisia (Vaillant 1974, 1978, Wagner 1987). They differ in their European distributions, with the range of P. barbarica extending northeast to the Pyrenees and M. tenebricosa reaching the Western Alps in southern France and Italy.

Vaillant (1974) mentions consistent minor morphological differences between adult males of M. tenebricosa in the North African and European populations, but refrained from using them to delimit species. We consider that these differences warrant further study as they may be evidence of cryptic species or ongoing speciation; DNA sequences will be useful in illuminating this question.

Pericoma unipennata sp. n. appears to be a member of the Mediterranean Pericoma modesta Tonnoir, 1922 species group as defined by Vaillant (1978, p. 226). In this group, Pericoma modesta has a wide Mediterranean distribution whereas P. alhambrana Vaillant, 1978, P. graecica Vaillant, 1978 and P. motasi Vaillant, 1978 are localized endemics in Southern Spain, Southern Balkan and the Romanian Carpathian mountains, respectively. The Psychodidae of the Iberian peninsula are too incompletely known to tell whether Pericoma unipennata sp. n. is an island endemic of the Balearic islands or whether it is more widespread in the Mediterranean region.

Acknowledgements

We are grateful to Hans Malicky, Lunz am See, for useful material, to Pelayo Secades, Bergen, for valuable help in arranging GMK’s field stays in Mallorca, and to Cecilia Enriques García, Bergen, for assistance in the field. Michelle Vine, Gold Coast, kindly checked the English. We thank our colleagues Greg Curler, Sergio Ibañez-Bernal, Jan Ježek and Jukka Salmela for their helpful reviews of the manuscript. We are indepted to the University Library of Kassel's Open Access Publication Fund for covering publication costs.

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