Published October 26, 2017 | Version v1
Taxonomic treatment Open

Dasydorylas Skevington 2001

  • 1. Department of Plant Protection, College of Agriculture, University of Zabol, P. O. Box: 98615 - 53, Iran. & Plant Protection Research Department, South Agricultural and Natural Resources Research and Education Center, AREEO, Birjand, Iran. & urn: lsid: zoobank. org: author: 58 ABDB 36 - AB 50 - 4 A 5 A- 8 B 38 - EF 0 B 1 F 9 E 033 B & Corresponding author: Bmoetamedinia @ iripp. ir
  • 2. Senckenberg Natural History Collections Dresden, Museum of Zoology, Königsbrücker Landstraβe 159, 01109 Dresden, Germany. & Email: kehlmaier @ web. de & urn: lsid: zoobank. org: author: 3 BD 2 A 72 C-A 88 E- 4 B 2 F-A 22 C- 7 CF 522 DE 6 F 4 D
  • 3. Department of Plant Protection, College of Agriculture, University of Zabol, P. O. Box: 98615 - 53, Iran. & Email: mokhtari @ uoz. ac. ir & urn: lsid: zoobank. org: author: 84 FD 880 A- 22 C 6 - 41 C 8 - ACDC- 8 B 347465 BA 2 A
  • 4. Department of Plant Protection, College of Agriculture, University of Zabol, P. O. Box: 98615 - 53, Iran. & Email: rakhshani @ uoz. ac. ir & urn: lsid: zoobank. org: author: 86 C 5 B 3 A 2 - BE 3 E- 4 C 3 B-B 0 F 1 - 3 B 69148 E 0 B 9 B
  • 5. Insect Taxonomy Research Department, Iranian Research Institute of Plant Protection, Agricultural Research, Education and Extension Organization (AREEO), 19395 - 1454, Tehran, Iran. & Email: gilasian @ iripp. ir & urn: lsid: zoobank. org: author: A 45912 ED-BEEB- 4733 - AC 6 E-C 22 ACAFD 6 F 63

Description

Key to males of West-Palaearctic Dasydorylas Skevington, 2001

For generic identification, follow the key in Kehlmaier (2005a) to couplet 18.

1 Abdominal tergites densely covered with rather long bristly hairs (♂♂: up to 0.07 mm). (Dorso-) lateral fan of tergite 1 with about 13 strong, dark bristles of different length. Male genitalia as in Kehlmaier 2005a: fig. 15a–h .................................................................... D. horridus (Becker, 1897)

– Abdominal tergites less densely covered with shorter hairs (up to 0.05 mm). (Dorso-) lateral fan of tergite 1 with about 8 bristles at the most.....................................................................................2

2 Flagellum extremely long tapering, filiform (LF:WF>5.5) (Kehlmaier 2005a: fig. l8i). Syntergosternite 8 without membranous area. Eyes meeting for about ten times diameter of ocellus. F:EM= 1:0.5–0.6. LTC:LFC =0.6–0.8. Surstyli and genitalia as in Kehlmaier 2005a: fig. 18a–h ....... ............................................................................................................... D. filiformis Kehlmaier, 2005

– LF:WF<4.0. Syntergosternite 8 with membranous area. Eyes meeting for 15 to 20 times diameter of ocellus. F:EM=1:1.0–1.2. LTC:LFC>1.6.....................................................................................3

3 Scutellar hair fringe with 6 very strong bristles (up to 0.2 mm). Flagellum very long, tapering (LF:WF=3.7–3.9) ..................................................................................... D. setosus (Becker, 1908)

– Scutellar hair fringe with up to 14 shorter bristles (up to 0.07 mm). Flagellum shorter (LF:WF= 2–2.3).................................................................................................................................................4

4 Phallic guide with up to 14 long spines on each side, pointing upwards into different directions. Each surstylus distally with a single outward bent finger-like projection (Kehlmaier 2005b: fig. 12i) ........................................................................................................... D. gradus Kehlmaier, 2005

– Phallic guide with less than 10 long spines on each side...............................................................5

5 Phallic guide with 8 downwards directed long spines on each side. Each surstylus with a pair of finger-like projections which are bent towards each other (Fig. 3E) ......................................... ..................................................................... D. derafshani Motamedinia & Kehlmaier sp. nov.

– Phallic guide with only 2 spines on each side.................................................................................6

6 Gonopods with elongated regions of distinctly stronger sclerotization (Fig. 5A). Phallus short and length of ejaculatory ducts shorter than length of surstyli ......................................................... ............................................................................... D. zardouei Motamedinia & Kehlmaier sp. nov.

– Gonopods without elongated regions of stronger sclerotization. Ejaculatory ducts of phallus longer than surstyli.......................................................................................................................................7

7 Dorsolateral spines of phallic guide rather strong, situated at end of basal half (Kehlmaier 2005a: fig. 14a–b). Surstyli as in Kehlmaier 2005a: fig. 14d, j–k. Phallus with long ejaculatory ducts (Kehlmaier 2005a: fig. 14h). Membranous area occupies about half the width of syntergosternite 8 (Kehlmaier 2005a: fig. 14e) .............................................. D. holosericeus (Becker, 1897)

– Dorsolateral spines of phallic guide somewhat smaller and situated after basal third (Kehlmaier 2005a: fig. 16a–b). Surstyli as in Kehlmaier 2005a: fig. 16d, j–k. Phallus with shorter ejaculatory ducts (Kehlmaier 2005a: fig. 16h). Membranous area occupies about a third of the width of syntergosternite 8 (Kehlmaier 2005a: fig. 16f) ............................................................ D. roseri (Becker, 1897)

Notes

Published as part of Motamedinia, Behnam, Kehlmaier, Christian, Mokhtari, Azizollah, Rakhshani, Ehsan & Gilasian, Ebrahim, 2017, The genus Dasydorylas Skevington in Iran, with the description of two new species (Diptera: Pipunculidae), pp. 1-13 in European Journal of Taxonomy 362 on page 11, DOI: 10.5852/ejt.2017.362, http://zenodo.org/record/3836546

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Linked records

Additional details

Biodiversity

References

  • Skevington J. H. & Yeates D. K. 2001. Phylogenetic classification of Eudorylini (Diptera, Pipunculidae). Systematic Entomology 26: 421 - 452. https: // doi. org / 10.1046 / j. 0307 - 6970.2001.00160. x
  • Kehlmaier C. 2005 a. Taxonomic revision of European Eudorylini (Insecta, Diptera, Pipunculidae). Verhandlungen des Naturwissenschaftlichen Vereins in Hamburg (Neue Folge) 41: 45 - 353.
  • Kehlmaier C. 2005 b. Taxonomic studies on Palaearctic and Oriental Eudorylini (Diptera: Pipunculidae), with the description of three new species. Zootaxa 1030: 1 - 48. https: // doi. org / 10.11646 / zootaxa. 1030.1.1