Eleven remarkable Diptera species, emerged from fallen aspens in Kivach Nature Reserve, Russian Karelia

Alexei Polevoi; Anna Ruokolainen; Ekaterina Shorohova

doi:10.3897/BDJ.6.e22175

Biodiversity Data Journal : Taxonomic Paper

PDF

Taxonomic Paper

Eleven remarkable Diptera species, emerged from fallen aspens in Kivach Nature Reserve, Russian Karelia

Alexei Polevoi^‡, Anna Ruokolainen^‡, Ekaterina Shorohova^‡

‡ Forest Research Institute, Petrozavodsk, Russia

Corresponding author: Alexei Polevoi (alexei.polevoi@krc.karelia.ru)

Academic editor: Vladimir Blagoderov

Received: 09 Nov 2017 | Accepted: 28 Jan 2018 | Published: 05 Feb 2018

This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Citation: Polevoi A, Ruokolainen A, Shorohova E (2018) Eleven remarkable Diptera species, emerged from fallen aspens in Kivach Nature Reserve, Russian Karelia. Biodiversity Data Journal 6: e22175. https://doi.org/10.3897/BDJ.6.e22175

ZooBank: urn:lsid:zoobank.org:pub:54A5908B-70BE-49F7-A3A5-877048717F25

Abstract

Background

In 2016, saproxylic Diptera associated with aspen (Populus tremula L.) logs were studied in the Kivach Nature Reserve, Russian Karelia, using trunk emergence traps.

New information

Eleven rare species of Diptera (families Limoniidae, Scatopsidae, Axymyiidae, Mycetophilidae, Sciaridae, Platypezidae, Syrphidae and Clusiidae) with poorly known distribution and ecology were recorded. For each species, basic diagnostic characteristics were provided along with the information on microhabitats. An attempt was also undertaken to outline possible associations with wood-decaying macrofungi using nonparametric correlation.

Keywords

Diptera, Russia, dead wood, aspen, wood-decaying macrofungi

Introduction

Saproxylic Diptera have never been specially studied in Russian Karelia, except for certain groups partly associated with wood-decaying fungi (Yakovlev 1988, Yakovlev 1993, Yakovlev 1995, Jakovlev 2011). Only a few works provide information on abundance and microhabitats for some rare or red-listed species associated with dead wood (Humala and Polevoi 2015, Siitonen et al. 1996, Polevoi and Salmela 2014, Yakovlev et al. 2000). In 2015, research which aimed to study the insect fauna on fallen logs of different tree species, was started. As a result, a number of remarkable species of Coleoptera, Hymenoptera and Diptera were recorded (Polevoi and Pilipenko 2016, Polevoi et al. 2017). In 2016, trapping was continued concentrating on fallen aspens with different degrees of decomposition. In total, 105 species of Diptera were collected, including a range of poorly known taxa Suppl. material 1. Here the most remarkable findings are presented.

Materials and methods

The trapping was undertaken in the Kivach Nature Reserve, Republic of Karelia. The biotope was Oxalis acetosella-Vaccinium myrtillus type spruce forest, over 150 years old (for details see Shorohova et al. 2016). Trunk emergence traps (Polevoi and Pilipenko 2016) were used as a collecting method. Fourteen traps were set on the fallen aspens, which had died from 1 to 16 years ago. The time since death was determined using dendrochronological methods (Shorohova et al. 2016). The traps were installed on 25 April 2016 and kept until 28 September 2016, with monthly checking. Diameter at the breast height, decay class (Shorohova et al. 2016) and the tree mortality mode (windthrow or windbreak) were recorded for each tree. The species composition of wood-decaying macromycetes was identified as well. The inventory of the fruitbodies was conducted in May, June, August and October, 2015 as well as in July and September, 2016. The presence-absence was recorded for all species on each log, counting one or several fruitbodies of a particular species on an individual dead tree as one occurrence. Remarkable Diptera species were recorded in 10 of the 14 installed traps (Table 1).

Table 1.

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XLSX

Occurrence of remarkable Diptera species and wood-decaying macromycetes on fallen aspens in Kivach Nature Reserve (DBH - diameter at breast height; WB - windbreak; WT - windthrow).

	A_1	A_2	A_3	A_4	A_5	A_6	A_7	A_8	A_9	A_10
Trunk parameters
The time since tree death	9	16	10	7	10	5	8	1	4	6
Decay class	1	1	2	2	1	1	2	1	1	1
DBH (cm)	41.4	54.1	49.7	70.4	78.7	36.9	29.9	33.8	27.4	74.5
Tree mortality mode	WB	WT	WB	WB	WB	WB	WT	WB	WT	WB
Diptera (number of collected specimens)
Atypophthalmus machidai Alexander	0	0	0	0	2	0	0	0	0	0
Discobola parvispinula Alexander	0	0	0	0	0	0	1	0	0	0
Gnophomyia acheron Alexander	0	0	0	6	2	1	0	0	0	0
Limonia badia Walker	0	1	0	1	0	0	0	0	0	223
Ectaetia subclavipes Krivosheina	16	0	7	295	18	3	0	0	1	1
Mesaxymyia kerteszi Duda	1	0	0	0	0	0	0	0	0	0
Impleta consorta Plassmann	0	0	1	0	0	0	0	0	0	0
Zygoneura bidens Mamaev	15	0	0	0	0	0	0	0	0	1
Agathomyia vernalis Shatalkin	0	0	0	0	6	0	4	0	0	0
Hammerschmidtia ingrica Stackelberg	0	0	0	4	0	0	0	0	0	0
Clusiodes tuomikoskii Mamajev	26	0	0	0	0	0	0	0	0	2
Fungi (presence/absence)
Otidea onotica (Pers.) Fuckel	0	0	1	0	0	0	0	0	0	0
Peziza repanda Pers.	0	0	1	0	1	0	0	0	0	1
Scutellinia scutellata (L.) Lambotte	0	1	0	0	1	0	0	0	0	1
Pleurotus pulmonarius (Fr.) Quél	0	0	0	0	1	0	0	0	1	0
Armillaria cepistipes Velen.	1	0	1	1	0	1	1	0	0	0
Hericium cirrhatum (Pers.) Nikol.	1	0	1	0	0	0	0	0	0	0
Lentaria afflata (Lagget) Corner	0	0	0	1	0	1	0	0	0	1
Bjerkandera adusta (Willd.: Fr.) P. Karst.	1	1	1	0	1	0	1	0	1	1
Cerioporus leptocephalus (Jacq.) Zmitr.	0	0	0	0	1	0	0	0	0	0
Cerioporus squamosus (Huds.) Quél.	0	0	1	0	0	0	0	0	0	0
Fomes fomentarius (L.: Fr.) Fr.	0	0	0	1	0	0	1	0	0	0
Fomitopsis pinicola (Sw.: Fr.) P. Karst	0	0	0	0	1	0	1	0	0	0
Ganoderma applanatum (Pers.) Pat.	0	1	0	0	0	0	0	0	0	0
Hyphoderma setigerum (Fr.: Fr.) Donk	0	0	0	1	0	0	0	0	0	1
Inonotus obliquus (Pes.: Fr.) Pilát	0	0	0	0	0	1	0	0	0	0
Mycoacia fuscoatra (Fr.) Donk	0	0	1	0	0	0	0	0	0	0
Oxyporus corticola (Fr.) Ryvarden	1	0	1	1	1	1	1	0	0	1
Phellinus tremulae (Bondartsev) Bondartsev et Borisov	1	1	1	0	1	0	1	1	1	1
Royoporus badius (Pers.) A.B. De	0	0	0	0	1	0	0	0	0	0
Trametes ochracea (Pers.) Gilb. et Ryvarden	1	0	1	1	1	0	0	0	0	1
Trametes trogii Berk.	0	0	0	0	1	0	0	0	0	0
Xenasma rimicola (P. Karst.) Donk	0	0	0	0	0	0	1	0	0	0
Amphinema byssoides (Pers.: Fr.) J. Erikss.	0	1	0	0	1	0	1	0	0	1
Botryohypochnus isabellinus (Fr.) J. Erikss.	0	0	0	0	0	1	1	0	0	0
Chondrostereum purpureum (Pers.: Fr.) Pouzar	1	0	0	0	0	0	0	0	1	1
Coniophora arida (Fr.) P. Karst.	0	0	0	0	0	1	0	0	0	0
Coniophora olivacea (Fr.: Fr.) P. Karst.	0	0	0	0	0	1	0	0	0	0
Cylindrobasidium laeve (Pers.) Chamuris	0	0	0	0	0	0	0	1	0	0
Dichostereum boreale Pouzar	0	0	1	0	0	0	0	0	0	0
Kurtia argillacea (Bres.) Karasiński	0	0	0	0	0	0	1	0	0	0
Peniophora incarnata (Pers.) P. Karst.	0	0	0	0	0	0	0	0	0	1
Punctularia strigosozonata (Schwein.) Talbot	0	0	0	0	1	0	0	0	0	0
Resinicium bicolor (Alb. et Schwein.: Fr.) Parmasto	0	0	0	0	0	0	1	0	0	0
Scytinostroma galactinum (Fr.) Donk	0	0	1	0	0	1	0	0	0	0
Serpula himantioides (Fr.) P. Karst.	0	0	1	0	0	0	0	0	0	0
Subulicystidium longisporum (Pat.) Parmasto	0	0	0	1	0	0	0	0	0	0
Tomentella badia (Link) Stalpers	0	0	0	0	0	0	1	0	0	0
Tomentella bryophila (Pers.) M. J. Larsen	0	1	1	0	0	0	1	0	0	0
Tomentella cinerascens (P. Karst.) Höhn. et Litsch	0	0	0	0	0	1	0	0	0	0
Tomentella coerulea (Bres.) Höhn. et Litsch.	0	1	0	0	0	0	0	0	0	0
Tomentella crinalis (Fr.) M. J. Larsen	0	0	0	0	0	0	1	0	0	0
Tomentella lapida (Pers.) Stalpers	0	0	0	0	0	0	1	0	0	0
Tomentella stuposa (Link) Stalpers	0	0	1	0	0	0	0	0	0	0

Series of images were captured with Leica MZ 9.5 and Leica DM1000 stereomicroscopes supplied with Leica DFC290 and LOMO MC-6.3 digital cameras. Images were then z-stacked using Helicon Focus software (http://www.heliconsoft.com/heliconsoft-products/helicon-focus).

Association with fungi was analysed using Pearson's non-parametric rank-order correlation coefficient (RS) calculated with PAST software (Hammer et al. 2001).

Insect and fungal specimens are stored in the collection and herbarium of the Forest Research Institute, Petrozavodsk (FRIP).

Taxon treatments

Gnophomyia acheron Alexander, 1950

Catalogue of Life http://www.catalogueoflife.org/annual-checklist/2017/details/species/id/b9c29484b800e7dffeeced4fa3b973bc

Material Download as CSV

country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-05-26/06-2
; sex:
7 males, 2 females
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP

Diagnosis

Medium sized dark species, distinguished from other Gnophomyia by the structure of male and female genitalia (Fig. 1; see also Hancock (2008), fig. 6, 10).

Figure 1.

Gnophomyia acheron Alexander, male genitalia. Scale bar: 0.5 mm.

a: Dorsal view
b: Ventral view

Distribution

Palaearctic. Only recently discovered in Finland and Russian Karelia (Polevoi and Salmela 2014, Starý and Salmela 2004).

Ecology

Saproxylic species, associated with different deciduous trees (Krivosheina 2008). In Finland and Karelia, so far collected exclusively on aspen (Hancock 2008, Halme et al. 2012). According to the authors' data, this species prefers huge wind-broken aspens with a diameter over 70 cm, fallen 7 years ago (Table 1). It favoured the trunks colonised by Lentaria afflata (RS=0.56, P<0.05) and Subulicystidium longisporum (RS=0.62, P<0.05), but seemed to avoid those decayed by Phellinus tremulae (RS=-0.56, P<0.05).

Conservation

Red-listed in Finland, category VU (Penttinen et al. 2010).

Atypophthalmus (Microlimonia) machidai (Alexander, 1921)

Catalogue of Life http://www.catalogueoflife.org/annual-checklist/2017/details/species/id/d9bb1dfccd0cc6dea751bed18d0696c0

Material Download as CSV

country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-06-23/07-21
; sex:
1 male, 1 female
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP

Diagnosis

Medium sized species with peculiar male genitalia (Fig. 2), see also (Podenas and Gelhaus 2007, fig. 51)

Figure 2.

Atypophthalmus machidai (Alexander), male genitalia. Scale bar: 0.2 mm.

a: Dorsal view.
b: Ventral view.

Distribution

Palaearctic and Oriental regions (Oosterbroek 2017). Karelian record is the northernmost one. Closest locations are in Poland, Lithuania and Moscow province in Russia.

Ecology

Saproxylic species. Larvae develop under the bark of various trees (Krivosheina 2010). This species was collected from a wind-broken aspen, colonised by 13 species of macrofungi (Table 1).

Discobola parvispinula (Alexander, 1947)

Catalogue of Life http://www.catalogueoflife.org/annual-checklist/2017/details/species/id/8bb2ed786a6d52e53c05e998f1957b9b

Material Download as CSV

country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-07-21/08-19
; sex:
1 male
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP

Diagnosis

Distinguished from other Discobola by more heavily marked wings and the structure of the male genitalia (Fig. 3), see also (Starý 1974, fig. 5, 6) .

Figure 3.

Discobola parvispinula (Alexander), male genitalia.

a: Dorsal view. Scale bar: 0.5 mm.
b: Gonostylus. Scale bar: 0.2 mm.

Distribution

Palaearctic (Oosterbroek 2017). Karelian record is the northernmost one. Closest locations are in Poland, Lithuania and the Republic of Bashkortostan in Russia.

Ecology

Poorly known, though associations with dead wood and wood-destroying fungi were reported (Ševčík 2006, Wiedenska 2007). This species was collected from a windthrown aspen, colonised by 15 species of macrofungi (Table 1).

Limonia badia (Walker, 1848)

Catalogue of Life http://www.catalogueoflife.org/annual-checklist/2017/details/species/id/62f9e86b98f925526e31a0a3ac4c380a

Materials Download as CSV

country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-07-21/08-1
; sex:
31 males, 13 females
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP
country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-08-19/09-28
; sex:
95 males, 86 females
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP

Diagnosis

Distinguished from other Limonia by the structure of the male genitalia (Fig. 4) as well as wing pattern and the shape of the tarsal claws (Starý and Salmela 2004, fig. 1, 2).

Figure 4.

Limonia badia (Walker), male genitalia, dorsal view. Scale bar: 0.5 mm.

Distribution

Holarctic species, recently discovered in Finland (Starý and Salmela 2004) and Russian Karelia (Polevoi and Salmela 2014).

Ecology

Saproxylic species, associated with dead aspen wood (Halme et al. 2012). According to the authors' data, this species prefers wind-broken aspens with a diameter over 50 cm, fallen 6 years ago Table 1. It favoured the trunks colonised by Hyphoderma setigerum (RS=0.81, P<0.01), Peniophora incarnata (RS=0.62, P<0.05), Scutellinia scutellata and Lentaria afflata (RS=0.59, P<0.05).

Conservation

Red-listed in Finland, category NT (Penttinen et al. 2010).

Ectaetia subclavipes Krivosheina, 2002

Catalogue of Life http://www.catalogueoflife.org/annual-checklist/2017/details/species/id/4d727f0ceba0ba5043f0f48b85d53d30

Materials Download as CSV

country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-05-26/06-23
; sex:
98 males, 135 females
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP
country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-06-23/07-21
; sex:
11 males, 95 females
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP
country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-07-21/08-19
; sex:
1 male, 1 female
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP

Diagnosis

Flies of the genus Ectaetia have peculiar wing venation, namely the vein M partly fused with R₄₊₅ (Fig. 5). Ectaetia subclavipes is distinguished from congeners by the structure of the male genitalia (Fig. 6; see also Krivosheina (2002), fig. 28-30).

Figure 5.

Ectaetia subclavipes Krivosheina, habitus.

Figure 6.

Ectaetia subclavipes Krivosheina, male genitalia. Scale bar: 0.2 mm.

a: Ventral view.
b: Lateral view.

Distribution

East Russia: Khabarovsk region, Amur province, Tuva, Sakhalin island (Krivosheina 2002). First record for Europe.

Ecology

Larvae develop under the bark of aspen and poplar (Krivosheina 2002). According to the authors' data, the species prefers huge wind-broken aspens (diameter 70 cm. and more) fallen 7-10 years ago Table 1. It favoured the trunks colonised by Oxyporus corticola (RS=0.69, P<0.01), Trametes ochracea (RS=0.63, P<0.05) and Hyphoderma setigerum (RS=0.56, P<0.05).

Mesaxymyia kerteszi (Duda, 1930)

Catalogue of Life http://www.catalogueoflife.org/annual-checklist/2017/details/species/id/8e5f999d7fd9b092a5b50a3bdf7fef17

Material Download as CSV

country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-05-26/06-2
; sex:
1 female
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP

Diagnosis

Medium-sized flies with darkened wings (Fig. 7).

Figure 7.

Mesaxymyia kerteszi (Duda), female habitus. Scale bar: 2 mm.

Distribution

Europe. Known by a few records from the European part of Russia, Ukraine and Slovakia (Humala and Polevoi 2009, Jakovlev and Polevoi 1997, Martinovský and Roháček 1993).

Ecology

Poorly known. Larvae were collected from spruce wood (Mamaev and Krivosheina 1966) and adults found sitting on very damp fir logs (Martinovský and Roháček 1993). According to Krivosheina (1991), larvae of Axymyiidae may colonise newly fallen trunks and stay there for several years. This species was collected from a wind-broken aspen, colonised by 7 species of macrofungi Table 1.

Impleta consorta Plassmann, 1978

Catalogue of Life http://www.catalogueoflife.org/annual-checklist/2017/details/species/id/0e3b60c045c2ad149fb1c41f3bdb2b06

Material Download as CSV

country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-07-21/08-1
; sex:
1 male,
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP

Diagnosis

Small gnat, distinguished by wing venation (see http://sciaroidea.info/taxonomy/42011) and characters of the male genitalia (Fig. 8; see also Matile (1983), fig. 1).

Figure 8.

Impleta consorta Plassmann, male genitalia. Scale bar: 0.1 mm

a: Dorsal view.
b: Ventral view.

Distribution

Palaearctic. Known by a few specimens from Sweden, Poland, Finland and Norway (Kurina 2003, J. Kjærandsen pers. comm.). Recently reported from East Russia (Polevoi and Barkalov 2017).

Ecology

Poorly known. Some specimens were caught with light traps (Plassmann 1980, Kurina 2003, J. Kjærandsen pers. comm.). This species was collected from a wind-broken aspen, colonised by 15 species of macrofungi Table 1.

Conservation

Red-listed in Finland, category NT (Penttinen et al. 2010).

Zygoneura (Pharetratula) bidens (Mamaev, 1968)

Catalogue of Life http://www.catalogueoflife.org/annual-checklist/2017/details/species/id/237e139b55f7d5dd99863fe5e71a4491

Materials Download as CSV

country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-05-26/06-23
; sex:
1 male
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP
country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-06-23/07-21
; sex:
1 male
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP
country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-07-21/08-19
; sex:
13 males
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP
country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-08-19/09-28
; sex:
1 male
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP

Diagnosis

Gnats of the genus Zygoneura are distinguished from other Sciaridae by widely curved fork of wing vein M and long neck of ﬂagellomeres (Fig. 9a). Zygoneura bidens can be recognised by the two dark spines on a shared lobe in the middle of gonostylus (Fig. 9b; see also Shin et al. (2014), fig. 1: A, B).

Figure 9.

Zygoneura bidens (Mamaev), male.

a: Habitus.
b: Genitalia, ventral view.

Distribution

Palaearctic: Slovakia (Rudzinski and Ševčík 2012), China, Korea and the Russian Far East (Shin et al. 2014).

Ecology

Evidently saproxylic as other species of the subgenus Pharetratula. In Korea, collected at a shiitake farm with oak trunks used as a substrate for shiitake culture (Shin et al. 2014). According to the authors' data, the species prefers wind-broken aspens with a mean diameter of ca. 40 cm and having died 9 years ago Table 1. It favoured the trunks colonised by Peniophora incarnata (RS=0.61, P<0.05).

Agathomyia vernalis Shatalkin, 1981

Catalogue of Life http://www.catalogueoflife.org/annual-checklist/2017/details/species/id/749f7ac63c3cea4cc9f79d6f4d701a96

Material Download as CSV

country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-04-25/05-26
; sex:
2 males, 8 females
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP

Diagnosis

Males of A. vernalis are distinguished from congeners by several morphological characters, including the structure of the male genitalia (Fig. 10; see also Chandler (2001), Fig. 107-109), while females are recognised by peculiar abdominal marking (Chandler 2001, fig. 110, 111).

Figure 10.

Agathomyia vernalis Shatalkin, male genitalia, lateral view. Scale bar: 0.2 mm.

Distribution

Europe: Moscow province of Russia, Czech and Slovak Republics, Switzerland (Chandler 2001), Finland (Ståhls and Kahanpää 2006) and Romania (Tkoč and Roháček 2014).

Ecology

Virtually unknown. Other Agathomyia species assumed to develop internally in polypore fungi (Chandler 2001). In the Czech Republic, adults were registered in pyramidal (emergence) traps (Tkoč and Barták 2013). This species was collected from aspens fallen 8-10 years ago. The species did not show any preferences either to the trunk size or tree mortality mode (windfall vs. windbreak) Table 1. Its occurrence positively correlated with the following fungi: Fomitopsis pinicola (RS=0.99, P<0.01), Cerioporus leptocephalus, Royoporus badius, Trametes trogii, Punctularia strigosozonata (RS=0.73, P<0.01), Xenasma rimicola, Kurtia argillacea, Resinicium bicolor, Tomentella badia, T. crinalis and T. lapida (RS=0.61, P<0.05).

Conservation

Red-listed in Czech Republic, category EN (Farkac et al. 2005).

Hammerschmidtia ingrica Stackelberg, 1952

Fauna Europaea https://fauna-eu.org/cdm_dataportal/taxon/197de867-9c6b-4f01-9aa3-410813b7d47f

Material Download as CSV

country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-04-25/05-26
; sex:
3 males, 1 females
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP

Diagnosis

Easily distinguished from more common H. ferruginea Fallén by smaller body size and short feathering of the arista (Fig. 11, see also Kerppola (2011), fig. 2-4).

Figure 11.

Head of Hammerschmidtia spp. Scale bar: 2 mm.

a: H. ferruginea Fallén.
b: H. ingrica Stackelberg.

Distribution

Palaearctic. Few specimens are known from Finland and Leningrad province of Russia (Kerppola 2011). In East Russia, recorded from the republic of Tyva to Primorje region (Krivosheina 2003).

Ecology

Saproxylic species, associated with deciduous trees (Krivosheina 2003). This fly was collected from a wind-broken aspen, colonised by 7 species of macrofungi Table 1.

Conservation

Red-listed in Leningrad province of Russia (Krivokhatsky and Kuznetsov 2002).

Clusiodes tuomikoskii Mamaev, 1974

Catalogue of Life http://www.catalogueoflife.org/annual-checklist/2017/details/species/id/56f936b25a743fb51421c5ddb9a880a0

Material Download as CSV

country:
Russia
; stateProvince:
Karelia
; locality:
Kivach Nature Reserve
; verbatimLatitude:
62.281
; verbatimLongitude:
33.967
; verbatimCoordinateSystem:
Decimal degrees
; verbatimSRS:
WGS84
; samplingProtocol:
Trunk emergence trap
; eventDate:
2016-04-25/05-26
; sex:
14 males, 14 females
; recordedBy:
A. Polevoi
; identifiedBy:
A. Polevoi
; institutionCode:
FRIP

Diagnosis

The only representative of the genus Clusiodes with no darkening along the costal vein and entirely black scutum (Fig. 12). Male surstylus figured by Mamaev (1974), fig. 1:3 and Lonsdale and Marshall (2007), fig. 41.

Figure 12.

Clusiodes tuomikoskii Mamaev, male habitus.

Distribution

Known only by the type specimens from East Russia, Primorje region (Lonsdale and Marshall 2007, Mamaev 1974). First record for Europe.

Ecology

Unknown, but most probably similar to other species of Clusiodes, which develop in dead wood in an advanced state of decay, preferring fallen bark-covered trunks or stumps (Rotheray and Horsfield 2013). According to the authors' data, this species prefers wind-broken aspens of average diameter (ca. 40 cm) fallen 9 years ago (Table 1). It favoured the trunks colonised by Peniophora incarnata (RS=0.61, P<0.05).

Analysis

Discussion

Trunk emergence traps have some benefits in comparison with other methods traditionally used for collection of wood-living Coleoptera and Diptera (Alinvi et al. 2006, Halme et al. 2012). They, however fail in some cases (e.g. when larvae need to migrate to the soil for pupation) and usually cannot provide exact information about microhabitat preferences (Økland 1999). These traps were shown to be effective in detecting rather diverse insect communities, including a range of rare and otherwise remarkable species, which are difficult to find using commonly used techniques (Polevoi et al. 2017). This study once more demonstrates the effectiveness of the method and also shows the importance of large dead aspens for supporting diverse saproxylic insect communities. It is realised that indirect association of Diptera species with certain trunk parameters or fungi, e.g. correlation, may be questionable because of the relatively small number of replicates. However, in case of species with poorly known biology, such information may be of great importance. Initial knowledge about species preferences may help to outline directions for future studies and conservation measures.

Acknowledgements

The research was supported by the Russian Science Foundation (15–14–10023). We thank the staff of Kivach Nature Reserve for organising the fieldwork on the territory, Ekaterina Kapitsa and Anastasia Mamaj for help in selecting and dating the trunks. We also sincerely thank Jan Ševčík, Peter Chandler and Jukka Salmela for valuable comments on the manuscript.

Author contributions

Alexei Polevoi collected and identified Diptera and wrote the text. Anna Ruokolainen collected and identified fungi. Ekaterina Shorohova participated in the study design, fieldwork and writing the manuscript.

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Supplementary material

Suppl. material 1: The list of Diptera species collected with trunk emergence traps

Authors: Alexei Polevoi

Data type: occurrences

Brief description:

The list of species and number of collected specimens.

Filename: species_collected.xlsDownload file (40.00 kb)

Endnotes