Articles

kaniaIwona Kania
Department of Environmental Biology
Rzeszów University
Zelwerowicza 4
35-601 Rzeszów
Poland
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Iwona Kania, entomologist, palaeoentomologist, since 2007 Assistant Professor in Department of Environmental Biology, Faculty of Biology and Agriculture, University of Rzeszów. Graduated from the University of Silesia, Katowice, Poland in 2002 and made her PhD in 2007 (Department of Zoology, University of Silesia). The author of publications on taxonomic and phylogenetics issues of selected groups of insects, classification, morphology and biology of Diptera: Tipulomorpha. Her scientific activity focusses on the palaeontology, systematics and evolution of recent and extinct Tipulomorpha. The main research is based on inclusions of Tipulomorpha in fossil resins which she studied also at Institute of Palaeontology, Russian Academy of Sciences in Moscow and National Museum of Natural History in Paris. As a Member of Board of International Palaeoentomological Society she attended conferences in Beijing, China (2010) and Byblos, Lebanon (2013).

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krzeminskiWiesław Krzemiński
Institute of Systematic and Evolution of Animals
Polish Academy of Sciences
Sławkowska 17
31-016 Kraków
Poland
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Wiesław Krzemiński, entomologist, palaeontologist working on systematics, evolution and phylogeny of Diptera and Mecoptera, based on extinct and extant species. Since 1990 the Head of the Natural History Museum of the Institute of Systematics and Evolution of Animals, Polish Academy of Sciences, Kraków, Poland. A state professor since 2003. Academic position at the University of Rzeszów (2005 to 2009) and at the Pedagogical University in Kraków since 2010. Author of more than 120 publications; a keen participant of scientific expeditions to Antarctica, Venezuela, Columbia, Peru, Ecuador, Korea, Vietnam, China, Australia, New Zealand, Brazil. Organizer of over seventy exhibitions in several museums, mainly on fossil and living fauna and on nature protection. The founding member of the International Palaeoentomological Society (2001, Kraków); took part in all its following conferences in Pretoria, South Africa (2005), Alava, Spain (2007), Beijing, China (2010), Byblos, Lebanon (2013). 

 
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A new species of Dactylolabis (Idiolabis) Alexander, 1931 from the Eocene Baltic amber and its relationships among Dactylolabinae (Diptera: Limoniidae)

Iwona Kania and Wiesław Krzemiński

Plain Language Abstract

A new fossil crane-flies species – Dactylolabis (Idiolabis) ryszardi sp. nov. from Eocene Baltic amber is described. It is the third species of this extinct subgenus to be described, and is known exclusively from the Eocene Baltic amber. Relationship of the new species among representatives of the Dactylolabinae is presented and shows that the new described species is closely related to Idiolabis christelae Krzemiński, 2000a.

Resumen en Español

Una nueva especie de Dactylolabis (Idiolabis) Alexander, 1931 del ámbar eoceno del Báltico y sus relaciones dentro de Dactylolabinae (Diptera: Limoniidae)

Se describe una nueva especie, Dactylolabis (Idiolabis) ryszardi n. sp., del ámbar eoceno del Báltico. Es la tercera especie de este subgénero extinto que se describe y se conoce exclusivamente del eoceno del Báltico. Las características distintivas de la nueva especie son la nerviación alar, especialmente la forma de la celda discal, característicamente mellada en la esquina superior distal por la posición de dM1+2 desplazado a un tercio de la celda discal, y la morfología del hipopigio. Se presenta un análisis de parsimonia de especies tipo de taxones existentes y de especies extintas del género Dactylolabis del ámbar del Báltico basado en 25 caracteres morfológicos. El análisis confirma el estatus de los subgéneros extintos del ámbar eoceno del Báltico actualmente reconocido dentro del género Dactylolabis, y muestra los taxones modernos y fósiles agrupados por separado.

Palabras clave: insectos fósiles; inclusiones; taxonomía; nueva especie; evolución; análisis de parsimonia

Traducción: Enrique Peñalver

Résumé en Français

Une nouvelle espèce de Dactylolabis (Idiolabis) Alexander, 1931 provenant de l'ambre Baltique de l'Eocène et ses relations entre Dactylolabinae (Diptera: Limoniidae)

Une nouvelle espèce - Dactylolabis (Idiolabis) ryszardi n. sp. provenant d'ambre Baltique de l'Eocène est décrite. C'est la troisième espèce de ce sous-genre éteint à être décrits et elle est connue exclusivement dans l'ambre Baltique de l'Eocène. Les caractéristiques distinctives de l'espèce nouvellement décrite sont le caractère de nervures de l'aile, en particulier la forme de la cellule discale, caractéristiquement en retrait dans le coin distale supérieure par la position de dM1+2 déplacé à 1/3 de d-cell et la morphologie de la hypopyge. Une analyse de parcimonie basé sur 25 caractères morphologiques des espèces types de taxons actuels et des espèces éteintes du genre Dactylolabis de l'ambre Baltique est fourni. L'analyse confirme le statut de sous-genres éteints actuellement reconnus dans le genre Dactylolabis de l'ambre Baltique de l'Eocène et montre les taxons actuels et fossiles regroupés séparément.

Mots-clés: insectes fossiles; inclusions; taxonomie; nouvelle espèce; évolution; analyse de parcimonie

Translator: Kenny J. Travouillon

Deutsche Zusammenfassung

Eine neue Art von Dactylolabis (Idiolabis) Alexander, 1931 aus dem eozänen Baltischen Bernstein und die Verwandtschaftsbeziehungen unter den Dactylolabinae (Diptera: Limoniidae)

Eine neue Art – Dactylolabis (Idiolabis) ryszardi n. sp. aus dem eozänen Baltischen Bernstein wird beschrieben. Es ist die dritte Art dieser ausgestorbenen Subgattung, die beschrieben wird und sie ist nur aus dem eozänen Baltischen Bernstein bekannt. Die unverkennbaren Merkmale dieser neu beschrieben Art sind die Art der Flügelnervatur, besonders die Form der distalen Zelle, die typischerweise in der oberen distalen Ecke bei der Postion von dM1+2 eingebuchtet ist und die zu 1/3 der d-cell verlagert ist, und die Morphologie des Hypophygiums. Es wird eine Parsimonie-Analyse von Typen-Arten heutiger Taxa und ausgestorbener Arten der Gattung Dactylolabis aus dem Baltischen Bernstein vorgelegt, basierend auf 25 morphologischen Merkmalen. Die Analyse bestätigt den Status ausgestorbener Subgattungen aus dem eozänen Baltischen Bernstein, die derzeit innerhalb der Gattung Dactylolabis erkannt wurden und zeigt die modernen und fossilen Taxa voneinander getrennt zusammengestellt.

Schlüsselwörter: fossile Insekten; Inklusionen; Taxonomie; neue Art; Evolution; Parsimonie-Analyse

Translator: Eva Gebauer

Arabic

468 arab

Translator: Ashraf M.T. Elewa

 

 

APPENDIX

The characters of parsimony analysis

1. occiput somewhat extended

0 - no 1 - yes

Comment. vertex separating compound eyes, sometimes broad

2. eyes rather huge, covering more than half of lateral surface of head.

0 - no 1 - yes

3. last antennal segment approximately equal to penultimate one

0 - no 1 - yes

4. prothorax huge, elongated

0 - no 1 - yes

5. wing reduced, clearly too short for flight

0 - no 1 - yes

6. wing venation characterized by short m1 which is shorter than its petiole

0 - no 1 - yes

7. reduction of cross-vein m-m

0 - no 1 - yes

8. no separate vein M2

0 - no 1 - yes

9. tip of A2 at the level of Rs base

0 - no 1 - yes

10. very light stigma

0 - no 1 - yes

11. two tibial spurs at least on one pair of leg

- absent 1 - present

12. one pair of gonostyles

0 - no 1 - yes

13. gonocoxite

0 - not produced 1 - produced

14. male genitalia strongly elongated (gonostylus more than three times as long as wide at base)

0 - no 1 - yes

15. extremely large compressed male genitalia

0 - no 1 - yes

Comment. The male genital structures enlarged and laterally compressed are characteristic for the subgenus Eobothrophorus (Podenas, 2003).

16. very complicated of IX tergite and gonostylus

0 - no 1 - yes

Comment. e.g. in Eobothrophorus ninth tergite with very long, slender median lobe, which has bifid apex is observed; in Bothrophorus ninth tegum is extremely complicated, it has median lobe with three pairs of huge conical lobes (Podenas, 2003).

17. characteristic interbasal lobe present

0 - no 1 - yes

18. gonostylus with basal lobe short, hardly 1/3 the length of gonostylus itself

0 - no 1 - yes

19. ninth tergum with large medial lobe

0 - no 1 - yes

20. the medial processes of tergite IX branched apically into four branches

0 - no 1 - yes

21. IX tergite with large processes intended into several small lobes

0 - no 1 - yes

22. medial lobe of tergum bifid at apex

0 - no 1 - yes

23. medial lobe of ninth tergum more simple, without branches

0 - no 1 - yes

24. gonostylus with big flashy and hairy rostral lobe, which is just slightly shorter than gonostylus itself

0 - no 1 - yes

25. coloration dark

0 - no 1 - yes

 

 

FIGURE 1. Dactylolabis (Idiolabis) ryszardi sp. nov., No. MP/3321 (male), holotype (ISEA PAS). 1, hypopygium (dorsal view); 2, palpus; 3, antenna; 4-5, wing venation; 4, well visible part of wing; 5, recontruction. Abbreviation of male hypopygium: gx - gonocoxite, gn - gonostylus, aed - aedeagus, p - paramere.

figure1

FIGURE 2. Dactylolabis ( Idiolabis ) ryszardi sp. nov., No. MP/3321 (male), holotype (ISEA PAS). 1, the body, latero-ventral view; 2, head and thorax with appendages.

figure2

FIGURE 3. Dactylolabis (Idiolabis) ryszardi sp. nov., No. MP/3321 (male), holotype (ISEA PAS). 1, head with palpi and basal segments of antennae; 2, hypopygium, dorsal view.

figure3

FIGURE 4. Preferred relationships tree of subgenera of the genus Dactylolabis. Filled circles indicate synapomorphies or autapomorphies; open circles indicate plesiomorphies. Extant taxa marked in grey, extinct taxa marked in black, new species noted in dark grey. Number of character above the circles, state of character below the circles. Range of clades marked in gray boxes on the right. Bootstrap values are given at the nodes.

figure4

FIGURE 5. Strict consensus tree of subgenera of the genus Dactylolabis. Filled circles indicate synapomorphies or autapomorphies; open circles indicate homoplasies or plesiomorphies. Extant taxa marked in grey, extinct taxa marked in black, new species noted in dark grey. Number of characterabove the circles, state of character below the circles. Range of clades marked in gray boxes on the right. Bootstrap values are given at the nodes.

figure5

 

 

 

TABLE. The data matrix.

 

1

2

3

4

5

6

7

8

9

10

11

12

13

Limnophila pictipennis (Meigen, 1818) 1 1 0 0 0 0 0 0 1 0 1 0 1
Dactylolabis (Aurolabis) labis Podenas, 2003a 0 1 0 0 1 0 1 1 0 0 1 1 1
D. (Bothrophorus) monstrosa (Savchenko, 1971) 1 0 0 1 0 0 0 0 0 0 0 0 0
D. (Coenolabis) aberrans Savchenko, 1963 1 0 0 1 0 0 0 0 0 0 0 1 1
D. (Dactylolabis) montana (Osten Sacken, 1860) 1 0 0 1 0 0 0 0 0 0 0 0 1
D. (Dactylolabis) amberifis Podenas, 2005 1 ? ? 0 0 0 0 0 1 1 ? 0 1
D. (Dactylolabis) viduus Podenas, 2005 ? ? 0 0 0 1 0 0 0 1 ? 0 1
D. (Eobothrophorus) alna Podenas, 2003a 0 1 0 1 0 0 0 0 0 0 1 1 0
D. (Eobothrophorus) altata Podenas, 2003a 0 1 0 1 0 0 0 0 0 0 1 1 0
D. (Eobothrophorus) hoffeinsorum Krzemiński et al., 2010 0 1 0 1 0 0 0 0 0 0 1 1 0
D. (Eobothrophorus) lauryni Podenas, 2003a 0 1 0 1 0 0 0 0 0 0 1 1 0
D. (Eolabis) ambustus Podenas, 2005 0 1 0 1 0 0 0 1 1 1 ? 1 0
D. (Eolabis) artis Podenas & Weiterschan, 2011 0 1 0 1 0 0 1 1 ? 0 ? 1 0
D. (Eolabis) latusta Podenas, 2003a 0 1 0 1 0 1 0 0 0 1 1 1 0
D. (Eolabis) vetusta Alexander, 1931 0 1 0 1 0 0 0 0 1 1 1 1 0
D. (Eolabis) vyshniauskasi Podenas, 2005 0 1 0 1 0 0 0 0 1 1 1 1 0
D. (Eudactylolabis) damula (Osten Sacken, 1877) 1 0 0 1 0 0 0 0 0 0 0 0 0
D. (Idiolabis) christelae Krzemiński, 2000a 0 1 1 0 0 0 0 0 0 0 1 1 0
D. (Idiolabis) ryszardi sp. nov. 0 1 0 0 0 0 0 0 0 0 1 1 0
D. (Idiolabis) terebrella Alexander, 1931 0 1 0 0 0 0 0 0 0 0 1 1 0

TABLE part 2. .

 

14

15

16

17

18

19

20

21

22

23

24

25

Limnophila pictipennis (Meigen, 1818) 0 0 0 0 0 0 0 0 0 0 0 0
Dactylolabis (Aurolabis) labis Podenas, 2003a 0 0 1 0 0 0 0 0 0 0 0 0
D. (Bothrophorus) monstrosa (Savchenko, 1971) 0 0 1 0 0 1 0 0 0 0 0 0
D. (Coenolabis) aberrans Savchenko, 1963 0 0 0 1 0 0 0 0 0 0 0 0
D. (Dactylolabis) montana (Osten Sacken, 1860) 0 0 0 0 0 0 0 0 0 0 0 0
D. (Dactylolabis) amberifis Podenas, 2005 0 0 0 0 0 1 0 0 0 0 0 1
D. (Dactylolabis) viduus Podenas, 2005 0 0 0 0 0 0 0 0 0 1 0 0
D. (Eobothrophorus) alna Podenas, 2003a 0 1 1 0 0 1 0 0 1 0 0 0
D. (Eobothrophorus) altata Podenas, 2003a 0 1 1 0 0 1 0 0 0 1 0 0
D. (Eobothrophorus) hoffeinsorum Krzemiński et al., 2010 0 1 1 0 0 1 0 1 0 0 0 0
D. (Eobothrophorus) lauryni Podenas, 2003a 0 1 1 0 0 1 1 0 0 0 0 0
D. (Eolabis) ambustus Podenas, 2005 0 0 1 0 0 0 0 0 0 0 0 1
D. (Eolabis) artis Podenas & Weiterschan, 2011 0 0 1 0 0 0 0 0 0 0 0 1
D. (Eolabis) latusta Podenas, 2003a 0 0 1 0 0 0 0 0 0 0 1 1
D. (Eolabis) vetusta Alexander, 1931 0 0 1 0 0 0 0 0 0 0 0 1
D. (Eolabis) vyshniauskasi Podenas, 2005 0 0 1 0 0 0 0 0 0 0 0 1
D. (Eudactylolabis) damula (Osten Sacken, 1877) 0 0 0 0 0 0 0 0 0 0 0 0
D. (Idiolabis) christelae Krzemiński, 2000a 1 0 0 0 1 0 0 0 0 0 0 0
D. (Idiolabis) ryszardi sp. nov. 1 0 0 0 1 0 0 0 0 0 0 0
D. (Idiolabis) terebrella Alexander, 1931 1 0 0 0 0 0 0 0 0 0 0 0