Gasteruption brachychaetum Schrottky, 1906

Macedo, Antonio Carlos Cruz, 2011, A revision of Gasteruption Latreille (Hymenoptera: Gasteruptiidae) in the Neotropical Region 3030, Zootaxa 3030 (1), pp. 1-62: 18-20

publication ID

http://doi.org/ 10.11646/zootaxa.3030.1.1

persistent identifier

http://treatment.plazi.org/id/03AF5828-A84F-8F3A-FDD8-AFCB9E225A44

treatment provided by

Felipe

scientific name

Gasteruption brachychaetum Schrottky, 1906
status

 

Gasteruption brachychaetum Schrottky, 1906   ( Fig. 6 View FIGURE 6 )

Gasteruption brachychaetum Schrottky, 1906: 61–62   (description); Kieffer, 1912: 238 (in key), 308–309 (redescription); Hedicke, 1939: 34 (catalog); Macedo, 2009: 7 (brachycaetum misprint, cladistic analysis); Rasmussen et al. 2009: 23 (catalog).

Diagnosis. Differs from G. amputatum   by the head subtrapezoidal in dorsal view ( Fig. 6a View FIGURE 6 ); the propleuron longer than the pronotum; the mesonotum rounded in lateral view ( Fig. 6d View FIGURE 6 ); and the mesoscutum punctate ( Fig. 6c View FIGURE 6 ). Differs from other Neotropical species by the ovipositor sheath shorter than 0.40 times the metasoma length ( Fig. 6e View FIGURE 6 ); and by the subgenital sternun notched, V-shaped.

Redescription. Female ( Fig. 6e View FIGURE 6 ). Length: 11.4 mm (8.3–15.1 mm) (n=40); ovipositor sheath length 0.17 (0.13–0.22) × body length.

Head. Subtrapezoidal in dorsal view, as long as wide ( Fig. 6a View FIGURE 6 ), punctulate; mandible pre-apical tooth short; malar space short, almost separated from gena; posterior ocellus inserted at the level of upper eye margin; occipital carina relatively narrow dorsally and very wide laterally ( Fig. 6b View FIGURE 6 ). Head length 1.31 (1.21–1.49) × eye length; eye length 19.37 (12.50–30.00) × malar space; distance from posterior ocellus to occipital margin 1.77 (1.54–2.00) × distance between posterior ocelli; 1 st flagellomere 1.19 (1.00–1.60) × as long as scape, 1.29 (1.00–1.70) × as long as pedicel, 0.64 (0.44–1.00) × as long as 2 nd flagellomere. Color: black or dark brown, occipital carina usually red brown, clypeus yellow brown, scape yellow brown, remaining antennal segments dark brown to yellow brown.

Mesosoma. Propleuron rugulose dorsally, sparsely punctate laterally; pronotal process distinct; pronotum imbricate to smooth, area between lobes crenulate; mesonotum rounded in lateral view ( Fig. 6d View FIGURE 6 ); mesoscutum sparsely ( Fig. 6c View FIGURE 6 ) to densely punctate; mesoscutelum imbricate, with sparse punctation; mesepisternum imbricate dorsally and areolate ventrally; mesepimeron scrobiculate; metapleuron areolate, ventral region with a reduced smooth portion; propodeum areolate, longitudinal carina present (rarely indistinct); metacoxa usually with welldefined fine striae. Mesosoma (excluding propleuron) 1.67 (1.48–1.90) × as long as high; propleuron 1.69 (1.38– 1.96) × longer than its largest wide, 1.19 (1.03–1.38) × pronotum length; metacoxa 2.59 (2.00–3.15) × as long as wide; metatibia 3.97 (3.46–5.11) × as long as wide, 1.34 (1.12–1.43) × as long as femur, 3.23 (2.60–3.88) × as long as 1 st tarsomere. Fore wing discal cell subtriangular or subtrapezoidal; hind wing with 3 hamuli (rarely 2 or 4), not equidistant. Color: propleuron, mesonotum and propodeum red brown to dark brown, pronotum, mesopleuron and metapleuron red brown (with some black areas in several specimens); fore and middle legs with coxa, trochanter, femur and tibia red brown to dark brown, tibia with a yellow longitudinal stripe, tarsus white or yellow, apical tarsomeres red brown in some specimens; hind leg with coxa, trochanter, femur and tibia red brown to dark brown, subbasal portion of tibia yellow, tarsus red brown to dark brown (two specimens from Colombia have mesosoma black, except for yellow parts of legs).

Metasoma. Imbricate, 2.99 (2.71–3.38) × as long as mesosoma; subgenital sternun notched, V-shaped; ovipositor sheath 0.28 (0.21–0.35) × as long as metasoma. Color: terga mostly red brown to dark brown, with posterior regions yellow brown; ovipositor sheath red brown to dark brown, with apex yellow brown.

Male. First record. Similar to female. Geographic distribution. Argentina (Buenos Aires, Jujuy, Misiones, Salta, Tucumán), Brazil (Espírito Santo, Minas Gerais, Pará, Rio de Janeiro, Santa Catarina, São Paulo), Colombia, Costa Rica, Guatemala, Mexico (Quintana Roo), Paraguay ( Schrottky 1906), Peru, Suriname, Trinidad and Tobago, Venezuela.

Material examined. ARGENTINA: Buenos Aires: La Plata, 18.XII.1965, H. & M. Townes, 2♀, 2♂ ( AEIC)   ; Jujuy: Aguas Calientes , 650 m, 18–20.X.1968, L.E. Pena, 1♂ ( AEIC)   ; Misiones: San Ignacio , 4–5.IV.1974, C. R. &. M. Vardy, 1♀ ( BMNH)   ; Salta: San Carlos , 20.I.1950, A. Willink & Monrós, 1♀ ( IMLA)   ; Tucumán: San Pedro de Colalao , 8.XI–8.XII.1967, L.A. Stange, 1♂ ( AEIC)   ; BRAZIL: Espírito Santo: S.J. Petrópolis, 12.XI.1964, C. Elias, 1 unknown gender ( DZUP)   ; Minas Gerais: Passa Quatro , 1903, E. R. Wagner, 1♀ ( MNHN)   ; São Gonçalo Rio Abaixo, Est. Amb. Peti Cemig , 18–25.X.2002, A.F. Kumagai, 1♀ ( MZSP)   ; Viçosa , 18.X.1992, G.A. R. Melo, 1♀ ( DZUP)   ; Pará: Oriximiná, Porto Trombetas, Teófilo , transição, 1 o 47’3.5”S 56 o 34’50.1”W, 141 m, Malaise , 16– 26.XII.2006, L. Cezar & L. Penilo, 1♀ ( MZSP) GoogleMaps   ; Rio de Janeiro: Itatiaia , 700 m, 22. V.1932, J.F. Zikán, 1♀ ( FIOC)   ; Nova Friburgo, Mury , XII.1975, Gred & Guimarães, 1♀ ( MZSP)   ; Rio de Janeiro, Jardim Botânico , VII.1935, H.S. Lopes, 1♂ ( MNRJ)   ; Santa Catarina: Nova Teutônia , 27º11’S 52º23’W, 300–500 m, 4.XI.1941, 8.V.1958, 25.VIII.1958, 17.II.1959, 12.IV.1959, 12.II.1960, 30.III.1960, 26.IV.1960, 31.III.1961, 2.III.1962, IV.1966, 23.II.1967, F. Plaumann, 11♀, 1♂ ( CNCI) GoogleMaps   ; Nova Teutônia , 28.I.1948, 20.IV.1948, 24.XII.1951, XII.1970, F. Plaumann, 4♀, 2♂ ( AEIC)   ; Nova Teutônia , 10.X.1955, F. Plaumann, 1♀ ( BMNH)   ; Nova Teutônia , X.1957, XI.1969, F. Plaumann, 1♀, 1♂ ( DZUP)   ; São Paulo: Barueri , 25.VIII.1955, K. Lenko, 1♀ ( MNRJ)   ; Guatapará , I.1945, N. Carrera, 1♀ ( MZSP)   ; Ribeirão Preto, Campus USP, 20.VIII.1998, 14.IX.1998, 10.X.1998, G.A. R. Melo, 3♀ ( DZUP)   ; Rio Claro, FEENA, Malaise , 10.IX–01.X.2005, J. T. Dias, 2♀ ( MZSP)   ; São Paulo, IBUSP, 28.XI.2007, 10.XII.2007, 10.II.2008, G.D. Cordeiro, 3♀ ( MZSP)   ; COLOMBIA: Amazonas: San Martín, PNN Amacayacu, Mata Station Tierre Firme, Malaise , 11–12.III.2000, M. Sharkey, 1♀ ( HIC)   ; San Martin, PNN Amacayacu, 3º46'S 70º18"W, 150 m, Malaise , 30. VI –8.VIII.2000, B. Amado, 1♀ ( IAVH)   ; Arauca: Tame , 20– 27.VII.1967, M. Cooper, 1♀ ( BMNH)   ; COSTA RICA: San José   : San José, 1100–1200 m, VIII.1980, N.L.H. Krauss, 1♂ ( AMNH)   ; GUATEMALA: Guatemala: 3 mi S Amatitian , 26.XI.1972, B. & C. Dasch, 1♀ ( AEIC)   ; MEXICO: Quintana Roo: X-can, VIII.1963, E. Welling, 9♀, 4♂ ( CNCI)   ; PERU: Ica: Chanchamayo , 8.VIII.1949, J.M. Schunke, 1♀ ( BMNH)   ; Loreto: Avispas, nr. Marcapata , IX.1972, L.E. Pena, 1♀ ( AEIC)   ; SURI- NAME: Paramaribo : 24–28.IV.1964, D.C. Geijskes, 1♀ ( AEIC)   ; TRINIDAD AND TOBAGO: Morne Bleu , 7– 28.VIII.1969, H. & A. Howden, 1♀ ( AEIC)   ; St. George, St. Augustine , 15.VII–13.VIII.1976, J.S. Noyes, 2♀ ( BMNH)   ; VENEZUELA: Aragua: Rancho Grande, Portachuelo , 1100 m 13. VI.1981, F. Fernandez, 1♀ ( MIZA)   ; 2 km N Ocumare de la Costa , 21–22. VI.1976, A.S. Menke & D. Vincent, 1♂ ( USNM)   ; Bolívar: km 38, El Dorado, Santa Elena, 31.VIII.1957, F. Fernandez, 1♀ ( MIZA)   ; Cojedes: El Pao. Higuerotal , 9º49'27"N 68º2'50"W, 376 m, 10–17.V.1995, 7–14.VI.1995, A. Alemán, 3♀ ( MIZA) GoogleMaps   ; Falcón: Cerro Galicia , 1500 m, 4.XII.1971, J. & B. Bechyne, 1♀ ( MIZA)   .

Comments. The three female s yntypes of G. brachychaetum   were not found and presumably were lost with part of Schrottky’s collection ( De Santis 1996; Rasmussen et al. 2009). The locality data cited by Schrottky (1906) in the description is PARAGUAY: Villa Encarnación, 30.I.1905, 6.II.1905, 8.II.1905. The main character in Schrottky’s description used to identify G. brachychaetum   was the very short ovipositor.

AEIC

American Entomological Institute

R

Departamento de Geologia, Universidad de Chile

IMLA

Fundacion e Instituto Miguel Lillo

DZUP

Universidade Federal do Parana, Colecao de Entomologia Pe. Jesus Santiago Moure

MNHN

Museum National d'Histoire Naturelle

MZSP

Sao Paulo, Museu de Zoologia da Universidade de Sao Paulo

V

Royal British Columbia Museum - Herbarium

FIOC

Fundacao Instituto Oswaldo Cruz

MNRJ

Museu Nacional/Universidade Federal de Rio de Janeiro

CNCI

Canadian National Collection Insects

USP

University of the South Pacific

T

Tavera, Department of Geology and Geophysics

HIC

Hymenoptera Institute Collection, University of Kentucky

VI

Mykotektet, National Veterinary Institute

IAVH

Instituto de Ivestigacion de los Recursos Biologicos Alexander von Humboldt

AMNH

American Museum of Natural History

MIZA

Museo del Instituto de Zoologia Agricola Francisco Fernandez Yepez

USNM

Smithsonian Institution, National Museum of Natural History

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hymenoptera

Family

Gasteruptiidae

Genus

Gasteruption

Loc

Gasteruption brachychaetum Schrottky, 1906

Macedo, Antonio Carlos Cruz 2011
2011
Loc

Gasteruption brachychaetum

Macedo, A. C. C. 2009: 7
Rasmussen, C. & Garcete-Barrett, B. R. & Goncalves, R. B. 2009: 23
Hedicke, H. 1939: 34
Kieffer, J. J. 1912: 238
Schrottky, C. 1906: 62
1906