Meteorus orocrambivorus

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Aguirre H, Shaw S, Berry J, de Sassi C (2014) Description and natural history of the first micropterous Meteorus species: M. orocrambivorus sp. n. (Hymenoptera, Braconidae, Euphorinae), endemic to New Zealand. Journal of Hymenoptera Research 38 : 45–57, doi. Versioned wiki page: 2014-08-15, version 63603, https://species-id.net/w/index.php?title=Meteorus_orocrambivorus&oldid=63603 , contributors (alphabetical order): Pensoft Publishers, Darren Ward.

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BibTeX:

@article{Aguirre2014JournalofHymenopteraResearch38,
author = {Aguirre, Helmuth, Shaw, Scott R., Berry, Jocelyn A. AND de Sassi, Claudio},
journal = {Journal of Hymenoptera Research},
publisher = {Pensoft Publishers},
title = {Description and natural history of the first micropterous Meteorus species: M. orocrambivorus sp. n. (Hymenoptera, Braconidae, Euphorinae), endemic to New Zealand},
year = {2014},
volume = {38},
issue = {},
pages = {45--57},
doi = {10.3897/JHR.38.7403},
url = {http://www.pensoft.net/journals/jhr/article/7403/abstract},
note = {Versioned wiki page: 2014-08-15, version 63603, https://species-id.net/w/index.php?title=Meteorus_orocrambivorus&oldid=63603 , contributors (alphabetical order): Pensoft Publishers, Darren Ward.}

}

RIS/ Endnote:

TY - JOUR
T1 - Description and natural history of the first micropterous Meteorus species: M. orocrambivorus sp. n. (Hymenoptera, Braconidae, Euphorinae), endemic to New Zealand
A1 - Aguirre H, Shaw S, Berry J
A1 - de Sassi C
Y1 - 2014
JF - Journal of Hymenoptera Research
JA -
VL - 38
IS -
UR - http://dx.doi.org/10.3897/JHR.38.7403
SP - 45
EP - 57
PB - Pensoft Publishers
M1 - Versioned wiki page: 2014-08-15, version 63603, https://species-id.net/w/index.php?title=Meteorus_orocrambivorus&oldid=63603 , contributors (alphabetical order): Pensoft Publishers, Darren Ward.

M3 - doi:10.3897/JHR.38.7403

Wikipedia/ Citizendium:

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| author = Aguirre H, Shaw S, Berry J, de Sassi C
| title = Description and natural history of the first micropterous Meteorus species: M. orocrambivorus sp. n. (Hymenoptera, Braconidae, Euphorinae), endemic to New Zealand
| journal = Journal of Hymenoptera Research
| year = 2014
| volume = 38
| issue =
| pages = 45--57
| pmid =
| publisher = Pensoft Publishers
| doi = 10.3897/JHR.38.7403
| url = http://www.pensoft.net/journals/jhr/article/7403/abstract
| pmc =
| accessdate = 2020-04-02

}} Versioned wiki page: 2014-08-15, version 63603, https://species-id.net/w/index.php?title=Meteorus_orocrambivorus&oldid=63603 , contributors (alphabetical order): Pensoft Publishers, Darren Ward.</ref>

See also the citation download page at the journal.


Taxonavigation

Genus: Meteorus

Name

Meteorus orocrambivorus Aguirre & Shaw sp. n.Wikispecies linkZooBank linkPensoft Profile

Diagnosis

Occipital carina complete; ocelli small (ocelli-ocular distance 2.0–2.3× ocellar diameter in females, 1.7× in males); mandible stout and twisted; notauli smooth and not distinct in females, but deeply impressed, narrow, distinct and rugose in males; female micropterous, male macropterous; propodeum smooth in females, but rugulose-lacunose in males; tarsal claw without lobe; dorsope and laterope absent; ventral borders of first tergite almost touching distally; ovipositor 1.9–2.3× longer than first tergite).

Description of holotype female

Body color. Dark brown-ferruginous
Body length. 3.5 mm.
Head. (Fig. 3). Antenna with 16 flagellomeres; flagellar length/width ratios as follows: F1 = 2.6, F2 = 2.2, F3 = 1.9, F 14 = 1, F 15 = 0.9, F 16 = 2.0; head 1.1× wider than high; occipital carina complete; ocelli ocular distance 2.0× ocellar diameter; head height 1.4× eye height; temple length 0.7× eyes length in dorsal view; vertex in dorsal view not descending vertically behind the lateral ocelli; frons smooth and polished; maximum face width 1.4× minimum face width; face finely rugulose; minimum face width 0.7× clypeus width; clypeus punctate; malar space length 0.4× mandible width basally; mandible stout and twisted. Mesosoma. (Figs 2, 4, 7 and 9). Pronotum in lateral view dorsally rugose; propleuron smooth and polished; notauli smooth and not distinct; mesonotal lobes not defined; mesoscutum smooth and polished; scutellar furrow with one carina; mesopleuron smooth but rugulose close to tegula; sternaulus long, wide and rugose; metapleuron mostly smooth, rugose close to the coxa; suture between propodeum and metapleuron foveate; propodeum smooth; absence of longitudinal and transversal carinae on propodeum; median depression on propodeum weakly present. Wings. Very reduced, at most reaching the scutellum apex (Fig. 2).
Legs. Hind coxa slightly strigose dorsally; the remaining surface irregular and punticulate; hind femur 4.8× longer than it is wide; tarsal claw without lobe.
Metasoma. (Figs 1 and 4). Dorsope and laterope absent; ventral borders of first tergite almost touching distally; first tergite smooth and polished except the apical border with short and convergent costae; ovipositor 2.0× longer than first tergite; ovipositor both not thickened basally and straight.

Female variation based on paratypes

Body length 3.0–3.1 mm; head with long and scattered setae; head 1.2× wider than high; ocelli ocular distance 2.3× ocellar diameter; head height 1.3× eye height; temples length 0.6× eyes length in dorsal view; maximum face width 1.3× minimum face width; face strigulate; minimum face width 0.8× clypeus width; malar space length 0.3–0.6× mandible width basally; pronotum in lateral view dorsally lacunose-foveate, faintly costate ventrally; sternaulus carinate-foveate; propodeum smooth except a small, punctate patch dorsally; hind coxa either strigate-punctate, strigate, or with very small and disperse punctures; hind femur 4.6–5.2× longer than it is wide; ventral borders of first tergite touching for a short distance; first tergite with costae convergent, faintly demarcated; T2 and T3 slightly coriaceous; ovipositor 1.9–2.3× longer than first tergite; ovipositor neither thickened basally nor curved.

Male variation based on paratypes

(Figs 5, 6, 8 and 10). Body black except the head with a small testaceous patch on the temple behind the eye; wings hyaline; body length 3.7 mm; antenna with 27 flagellomeres; ocelli ocular distance 1.7× ocellar diameter; head height 1.6× eye height; temples length 0.8–0.9× eyes length in dorsal view; vertex in dorsal view not descending vertically behind the lateral ocelli; maximum face width 1.2× minimum face width; minimum face width equal to clypeus width; malar space length 0.7–0.9× mandible width basally; propleuron puncticulate and shiny; notauli deeply impressed, narrow, distinctive and rugose, with pronounced longitudinal carina; mesoscutal lobes well defined; central lobe of mesoscutum punctate; scutellar furrow with seven carinae; mesopleuron smooth and polished; sternaulus rugose; propodeum rugulose-lacunose; longitudinal and transversal carinae on propodeum absent; median depression on propodeum absent; hind coxa with very small and dispersed punctures; wing length 3.6–3.7 mm; second submarginal cell of fore wing not strongly narrowed anteriorly; vein r 0.5× length of 3Rsa (fore wing); vein 3RSa 0.8× length of r-m (fore wing); vein m-cu of fore wing postfurcal; vein 1M 0.8–1× length of cu-a (HW); vein 1M 0.8× length of 1r-m (hind wing); dorsope and laterope absent; apparent dorsopes as deep grooves in the common dorsopes location; first tergite with faintly demarcated and parallel costae, which become more obvious on the apical border.

Comments

The micropterous condition of Meteorus orocrambivorus females is unique among all known Meteorus. However if the males are compared with the rest of the New Zealand fauna, Meteorus orocrambivorus seems closest to Meteorus cobbus Huddleston (Huddleston 1986[1]; p. 256, numeral 6 in the key). Males of both species share the following character states: body mostly black except a small, lighter patch (yellow or testaceous) on the temple behind the eyes; small ocelli (ocelli ocular distance ≥ 1.5× ocellar diameter); eyes almost parallel (maximum face width ≤ 1.2× minimum face width); mandibles stout and twisted; propodeum rugulose; dorsopes and lateropes absent, and ventral borders of first tergite touching for a short distance. Meteorus orocrambivorus can be separated from Meteorus cobbus by having antennae with 27 flagellomeres (30–33 in Meteorus cobbus), notauli narrow, carinate and distinct (broad and reticulated in Meteorus cobbus), and first tergite costate (strigose in Meteorus cobbus).
Holotype. Female (point-mounted). NEW ZEALAND, South Island, Lewis Pass, Hope River Valley, Glynn Wye Station, 42°36.73'S, 172°27.78'E, 650 m; host plant Poa cita Edgar (silver tussock), host caterpillar Orocrambus ramosellus Doubleday (Crambidae); collected as solitary parasitoid during the period November 2008 to January 2009; Claudio de Sassi, collector.
Paratypes. Two females and seven males same data as the holotype; one female same data as holotype except collected at 42°36.88'S, 172°27.62'E, 800 m; two females and two males same data as holotype except collected at 42°36.72'S, 172°26.58'E; three females and two males same data as holotype except the host caterpillar collected feeding on Festuca novae-zelandiae (Hack.) Cockayne at 1000 m; one female same data as holotype except the host caterpillar collected feeding on Festuca novae-zelandiae at 42°36.88'S, 172°26.58'E; one female same data as holotype except the host caterpillar collected feeding on Festuca novae-zelandiae at 42°36.88'S, 172°26.58'E, 650 m; six females and four males same data as holotype except the host caterpillar collected feeding on Festuca novae-zelandiae at 42°36.88'S, 172°26.58'E, 1000 m; one female and one male same data as holotype except the host caterpillar collected feeding on Festuca novae-zelandiae at 42°38.83'S, 172°22.17'E, 650 m.

Distribution

NEW ZEALAND, South Island, Lewis Pass, Hope River Valley, Glynn Wye Station.

Cocoon

(Fig. 11). Length 4.4 mm; width 1.6 mm; honey-brown translucent except apex cap golden, posteriorly bordered by a dark ring; oval-shaped, densely wrapped by silk, irregular cap border, anterior end (cap) nipple-like. The cocoon was found unattached inside a structure built by the caterpillar using grass leaves and silk (Fig. 12). No trace of a suspending thread was detected.

Biology

(Figs 12 and 13). The information gathered from the type series and additional rearings indicates that Meteorus orocrambivorus is a solitary parasitoid of larval Orocrambus ramosellus, Orocrambus simplex and Merophyas leucaniana. Parasitized Orocrambus have been collected feeding on Festuca novae-zelandiae, Poa cita. Holcus lanatum L., Anthoxantum odoratum L., Agrotis capillaris L., Festuca rubra L. and Rytidosperma setifolium (Hook. f.) Connor & Edgar. Merophyas leucaniana was collected on Festuca novae-zelandiae.

Etymology

The species name orocrambivorus is a reference to its feeding habit. The stem of the specific epithet refers to the genus name of the host caterpillar, Orocrambus, and the suffix comes from the Latin -vorare meaning “devour.”

Original Description

  • Aguirre, H; Shaw, S; Berry, J; de Sassi, C; 2014: Description and natural history of the first micropterous Meteorus species: M. orocrambivorus sp. n. (Hymenoptera, Braconidae, Euphorinae), endemic to New Zealand Journal of Hymenoptera Research, 38: 45-57. doi

Additional Material

New Zealand Arthopod Collection. Det DF Ward 15/8/2014
2 females, NZAC04094025, NZAC04093821, CO, Rocklands, 800m, 14-28/12/1979, BIP Barratt, pit trap in tussock; 1 female, NZAC04093743, OL, Glenorchy SF, Dart River, 21 Jan 1981, JS Noyes and EW Valentine, Sweeping; 1 female, NZAC04094209, NN, Pretty Bridge Val., 9/11/1966, G Hitchings, pit trap in pasture.

Other References

  1. Huddleston T (1986) The braconid genus Meteorus in New Zealand (Insecta: Hymenoptera). Journal of Natural History 20: 255–265. doi: 10.1080/00222938600770201

Images