Omalus

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Wei N, Rosa P, Liu J, Xu Z (2014) The genus Omalus Panzer, 1801 (Hymenoptera, Chrysididae) from China, with descriptions of four new species. ZooKeys 407 : 29–54, doi. Versioned wiki page: 2014-05-08, version 51639, https://species-id.net/w/index.php?title=Omalus&oldid=51639 , contributors (alphabetical order): Pensoft Publishers.

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BibTeX:

@article{Wei2014ZooKeys407,
author = {Wei, Na-sen, Rosa, Paolo, Liu, Jing-xian AND Xu, Zai-fu},
journal = {ZooKeys},
publisher = {Pensoft Publishers},
title = {The genus Omalus Panzer, 1801 (Hymenoptera, Chrysididae) from China, with descriptions of four new species},
year = {2014},
volume = {407},
issue = {},
pages = {29--54},
doi = {10.3897/zookeys.407.7531},
url = {http://www.pensoft.net/journals/zookeys/article/7531/abstract},
note = {Versioned wiki page: 2014-05-08, version 51639, https://species-id.net/w/index.php?title=Omalus&oldid=51639 , contributors (alphabetical order): Pensoft Publishers.}

}

RIS/ Endnote:

TY - JOUR
T1 - The genus Omalus Panzer, 1801 (Hymenoptera, Chrysididae) from China, with descriptions of four new species
A1 - Wei N, Rosa P, Liu J
A1 - Xu Z
Y1 - 2014
JF - ZooKeys
JA -
VL - 407
IS -
UR - http://dx.doi.org/10.3897/zookeys.407.7531
SP - 29
EP - 54
PB - Pensoft Publishers
M1 - Versioned wiki page: 2014-05-08, version 51639, https://species-id.net/w/index.php?title=Omalus&oldid=51639 , contributors (alphabetical order): Pensoft Publishers.

M3 - doi:10.3897/zookeys.407.7531

Wikipedia/ Citizendium:

<ref name="Wei2014ZooKeys407">{{Citation
| author = Wei N, Rosa P, Liu J, Xu Z
| title = The genus Omalus Panzer, 1801 (Hymenoptera, Chrysididae) from China, with descriptions of four new species
| journal = ZooKeys
| year = 2014
| volume = 407
| issue =
| pages = 29--54
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/zookeys.407.7531
| url = http://www.pensoft.net/journals/zookeys/article/7531/abstract
| pmc =
| accessdate = 2024-12-22

}} Versioned wiki page: 2014-05-08, version 51639, https://species-id.net/w/index.php?title=Omalus&oldid=51639 , contributors (alphabetical order): Pensoft Publishers.</ref>

See also the citation download page at the journal.


Taxonavigation

Name

Omalus Panzer, 1801 – Wikispecies link – Pensoft Profile

  • Omalus Panzer, 1801: 13. Type species: Chrysis aenea Fabricius, 1787. Bohart and Campos 1960[1]: 235 (partim, Omalus s. s.); Bohart and Kimsey 1982[2]: 36 (partim, Omalus s. s.); Kimsey and Bohart 1991[3]: 243; Rosa 2005[4]: 8; 2006[5]: 100.

Diagnosis

This genus is close to Holophris Mocsary, 1890, Philoctetes Abeille, 1879, and Pseudomalus Ashmead, 1902, but can be distinguish by mesoscutum impunctate and transpleural carina reaching the apex of propodeal angle. Other diagnostic characteristics are: scapal basin deep, smooth and glabrous, rarely with weak striae; malar space equal to or longer than 1 MOD, rarely less than 1 MOD, and horizontally bisected by the genal carina; mandibles tridentate; pronotum impunctate medially or nearly so; mesopleuron with scrobal sulcus horizontally, and with a single carina dorsally; transpleural carina reaching the apex of propodeal angle; scutellum with two flattened foveae on anterior margin; metanotum round or hemispherical; tarsal claw with three to six teeth; apex of T-III usually with small medial notch, rarely absent.

Biology

Species of Omalus have been reported as parasitoids of some crabronid wasps (Mocsáry 1889[6]; Tsuneki 1952[7]; Krombein 1963[8], 1967[9]; Parker and Bohart 1966[10]; Nozaka 1969[11]; Bohart and Kimsey 1982[2]; Tormos et al. 1996[12]; Rosa 2006[5]).

Distribution

Omalus occurs in all zoogeographic regions, except Australia. There are 26 valid Omalus species, of which 19 are found in the Palaearctic, one in both the Holarctic and the Oriental, three in the Nearctic, two in the Afrotropical, and one in the Neotropical Regions.

Key to the Chinese species of the genus Omalus Panzer

Key to the Chinese species of the genus Omalus Panzer — N. Wei, P. Rosa, J. Liu , Z. Xu
1
Tarsal claw with four teeth 
  2
–
Tarsal claw with three teeth 
  3
2
Scapal basin with weak, transverse striae (Plate 12A); mesoscutum transversally rugulose, with notauli distinct, deep and complete (Plate 12D); metasoma distinctly elongate (Plate 12E); apex of T-III with faint median notch (Plate 12F) 
  Omalus probiaccinctus sp. n.
–
Scapal basin smooth, without transverse striae (Plates 2A, 4A); mesoscutum polished, with notauli indistinct but complete, impressed as fine lines (Plates 2D, 4D); metasoma oval (Plates 2E, 4E); apex of T-III with distinct median notch (Plates 2F, 4F) 
  Omalus aeneus (Fabricius)
3
Notauli distinct and deep (Plates 6D, 16D) 
  4
–
Notauli indistinct, impressed as fine lines (Plates 8D, 10D, 14D) 
  5
4
Pronotum with scattered (1–2 PD), shallow punctures medially (Plate 6B); metasoma pear-shaped, T-II notably wider than T-I; apex of T-III with median notch V-shaped (Plate 6F) 
  Omalus berezovskii (Semenov-Tian-Shanskij)
–
Pronotum almost impunctate medially (Plate 16B); metasoma distinctly elongate, T-II not wider than T-I; apex of T-III with median notch shallowly indented (Plate 16F) 
  Omalus tibetanus sp. n.
5
Scutellum with two flattened and semi-elliptical foveae on anterior margin (Plates 10D, 14D) 
  6
–
Scutellum without foveae on anterior margin (Plate 8D) 
  7
6
Tegula fully metallic blue (Plate 10B); mesopleuron without striae between punctures (Plate 10C); propodeal angle indistinct 
  Omalus imbecillus (Mocsáry)
–
Tegula transparent brownish, with faint metallic reflections anteriorly (Plate 14B); mesopleuron with striae between punctures (Plate 14C); propodeal angle distinct and stout 
  Omalus pseudoimbecillus sp. n.
7
Body metallic bluish-purple, with green reflections; apex of T-III with brownish transparent rim (Plate 8F) 
  Omalus helanshanus sp. n.
–
Body metallic green-bronzy, with more or less golden-green reflections; apex of T-III with colourless transparent rim 
  Omalus potanini (Semenov-Tian-Shanskij)

Taxon Treatment

  • Wei, N; Rosa, P; Liu, J; Xu, Z; 2014: The genus Omalus Panzer, 1801 (Hymenoptera, Chrysididae) from China, with descriptions of four new species ZooKeys, 407: 29-54. doi

Other References

  1. ↑ Bohart R, Campos L (1960) A review of the genus Omalus Panzer in North America (Hymenoptera, Chrysididae). Annals of the Entomological Society of America 53(2): 235-250.
  2. ↑ 2.0 2.1 Bohart R, Kimsey L (1982) A synopsis of the Chrysididae in America north of Mexico. Memoirs of the American Entomological Institute 33: 1-166.
  3. ↑ Kimsey L, Bohart R (1991) The Chrysidid Wasp of the World. Oxford University Press, New York, 652 pp.
  4. ↑ Rosa P (2005) I Crisidi (Hymenoptera, Chrysididae) del Museo Civico di Storia Naturale di Milano. Natura, Milano, 128 pp.
  5. ↑ 5.0 5.1 Rosa P (2006) I Crisidi della Valle d’Aosta. Monografie del Museo regionale di Scienze naturali, St.-Pierre, Aosta, 368 pp.
  6. ↑ Mocsáry A (1889) Monographia Chrysididarum Orbis Terrarum Universi. Hungarian Academy of Science, Budapest, 643 pp.
  7. ↑ Tsuneki K (1952) Ethological studies on the Japanese species of Pemphredon (Hymenoptera, Sphecidae), with notes on their parasites, Ellampus spp. (Hym., Chrysididae). Journal of the Faculty of Science, Hokkaido University 11: 57-75.
  8. ↑ Krombein K (1963) The host-parasite relationship of Xylocelia virginiana Rohwer and Omalus intermedius (Aaron). Proceedings of the Entomological Society of Washington 63(4): 264.
  9. ↑ Krombein K (1967) Trap-nesting wasps and bees. Smithsonian Press, Washington, 570 pp.
  10. ↑ Parker F, Bohart R (1966) Host-parasite association in some twig-nesting Hymenoptera from western North America. Pan-Pacific Entomogy 42: 91-98.
  11. ↑ Nozaka C (1969) Omalus punctata (Uchida) (Hym., Chrysididae) parasitic on Pemphredon diervillae Iwata (Hym., Sphecidae). Life Study (Fukui) 13: 65-66.
  12. ↑ Tormos J, Asis J, Gayubo S, Mingo E (1996) Description of the mature larvae of Chrysis gracillima and Omalus biaccinctus and new data on the biology of Trichrysis cyanea (Hymenoptera: Chrysididae). Florida Entomologist 79(1): 56-63. doi: 10.2307/3495754

Images

Plate 2. Omalus aeneus (Fabricius, 1787), female from Inner Mongolia. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal.
Plate 2. Omalus aeneus (Fabricius, 1787), female from Inner Mongolia. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal. 
Plate 4. Omalus aeneus (Fabricius, 1787), male from Inner Mongolia. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal.
Plate 4. Omalus aeneus (Fabricius, 1787), male from Inner Mongolia. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal. 
Plate 6. Omalus berezovskii (Semenov-Tian-Shanskij, 1932), female from Ningxia. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal.
Plate 6. Omalus berezovskii (Semenov-Tian-Shanskij, 1932), female from Ningxia. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal. 
Plate 8. Omalus helanshanus sp. n., holotype, female. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal.
Plate 8. Omalus helanshanus sp. n., holotype, female. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal. 
Plate 10. Omalus imbecillus (Mocsáry, 1889), female from Yunnan. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal.
Plate 10. Omalus imbecillus (Mocsáry, 1889), female from Yunnan. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal. 
Plate 12. Omalus probiaccinctus sp. n., holotype, female. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal.
Plate 12. Omalus probiaccinctus sp. n., holotype, female. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal. 
Plate 14. Omalus pseudoimbecillus sp. n., holotype, female. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal.
Plate 14. Omalus pseudoimbecillus sp. n., holotype, female. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal. 
Plate 16. Omalus tibetanus sp. n., holotype, female. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal.
Plate 16. Omalus tibetanus sp. n., holotype, female. A Head anterior B Head and pronotum dorsal C Mesopleuron and metapleuron lateral D Mesoscutum, scutellum, metanotum and propodeum dorsal E Metasoma dorsal F Apex of T-III dorsal. 
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