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A new species of Heredius Marsh 2002 (Hymenoptera: Braconidae: Doryctinae) from Brazil/Nova especie de Heredius Marsh 2002 (Hymenoptera: Braconidae: Doryctinae) do Brasil.

1. Introduction

Doryctinae is one of the most diverse subfamilies of Braconidae (Marsh, 1997, 2002; Belokobylskij et al., 2004) with almost 1000 described species and roughly 180 recognised genera of which two thirds are distributed in the Neotropical region (Zaldivar-Riveron et al., 2008). This subfamily is considered to be a monophyletic group distinguished by the presence of a row of anterodorsal spines on the fore tibia and a double node in the ovipositor apex (Hanson and Gauld, 2006). Despite its high diversity, the biology of the Doryctinae is scarcely known (Wharton et al., 1997). Most species with known biology are idiobionts ectoparasitoids of Coleoptera (Zaldivar-Riveron et al., 2008).

Among the Doryctinae, the genus Heredius is distinguished by the coriaceous or acinose frons and vertex (Marsh, 2002). It includes one species described from Costa Rica, and the new species described in this present paper. Its known distribution is Costa Rica and Brazil. Recently (Loffredo and Penteado Dias, 2008a,b; Onody and Penteado-Dias, 2006) other Ichneumonoidea species from the Neotropical region have been studied and figured.

2. Material and Methods

The specimen was collected from Savannah area at the Parque Estadual de Vassununga, Santa Rita do Passa Quatro, Sao Paulo state, Brazil. The genus was identified by using Marsh (2002). The material examined was compared with the original description of the other species. This study is part of a large project on the richness and diversity of Doryctinae from Savannah areas in Sao Paulo state, Brazil. The figures were made with Leica equipment.

The holotype is deposited at DCBU Collection (Departamento de Ecologia e Biologia Evolutiva da Universidade Federal de Sao Carlos, Sao Carlos, Brazil).

Heredius Marsh 2002 flavus sp. nov.

Female, Body length 4.0mm.

Colour: body entirely yellow (Figure 1) except for apical flagellomere brown, veins and stigma of forewing light brown, ovipositor black at apex, light brown sheaths; yellow metasomal sternum, light brown flagellum; palpi, coxae, white trochanter and trochantellus; wings slightly dusky. Head: face mostly acinose with central area slightly swollen and rugose; frons acinose and carinate near toruli, vertex and temple acinose (Figure 2); oral opening small, diameter about 0.7 times the malar space; malar space 0.56 times eye height (Figure 3); frons slightly excavated; occipital carina meeting hypostomal carina; ocello-ocular distance about 4.0 times diameter of the lateral ocellus (Figure 4); 32 antennomeres. Mesosoma: pronotum, propleuron and mesopleuron acinose, pronotal groove shallow and scrobiculate; mesoscutal lobes acinose-rugose (Figure 4); notauli weakly impressed and scrobiculate, scutellum smooth; subalar groove scrobiculate, sternaulus finely scrobiculate and almost complete (Figure 5); propodeum mostly rugose, median carina diverging at extreme base and meeting lateral carinae, enclosing acinose-rugose basal median area, areola not defined apically. Legs: predominantly acinose, middle coxa weakly striate dorsally; fore tibia with a row of 11 stout spines along anterior edge. Wings: forewing r-m vein spectral but distinct, m-cu vein weakly distal with vein 2RS; 1cu-a vein distal to 1M vein; r vein 0.35 the 3RSa; hind wing M+CU vein 0.35 the 1M vein; r-m vein 0.23 the 1M; M+CU straight and perpendicular to 1M. Metasoma: first tergum with basal width 0.6 the apical width; apical width almost equal to the length, longitudinally rugose basally (Figure 6); second tergum rugose-costate, third tergum costate basally and coriaceous apically, remainder of terga weakly coriaceous; ovipositor as long as body.

[FIGURES 1-6 OMITTED]

Material examined: Holotype (DCBU); female, Brazil, SP, Santa Rita do Passa Quatro, Parque Estadual de Vassununga, 21[degrees]40' 56" S and 47[degrees]37' 13" W, savannah vegetation, 09.VI.2006; A.M.P.Dias col.

Comments: This species is distinguished from the other described species by its predominantly acinose-rugose sculpture and yellow colour; malar space 0.56 times the eye height, ocello-ocular distance about 4.0 times the diameter of the lateral ocellus, sternaulus finely scrobiculate and almost complete, first metasomal tergum with apical width about equal to the length.

Etymology: The name of the species refers to its predominant colour.

Acknowledgements--We are grateful to the Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq), Coordenadoria de Aperfeicoamento de Pessoal de Nivel Superior (CAPES), Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP), and the Instituto Nacional de Ciencia e Tecnologia dos Hymenoptera Parasitoides da Regiao Sudeste Brasileira (INCT--Hympar Sudeste) for financial support, to the Instituto Florestal do Estado de Sao Paulo, and the Parque Estadual de Vassununga for permitting the collection of material.

References

BELOKOBYLSKIJ, AS., ZALDIVAR-RIVERON, A. and QUICKE, DLJ., 2004. Phylogeny of the genera of the parasitic wasps subfamily Doryctinae (Hymenoptera: Braconidae) based on morphological evidence. Zoological Journal of the Linnean Society, no. 142, p. 369.

HANSON, PE. And GAULD, ID., 2006. Hymenoptera de la region Neotropical. The American Entomological Institute, vol. 77, p. 512.

LOFFREDO, AP. and PENTEADO-DIAS, AM., 2008a. First record of Schizopyga Gravenhorst (Hymenoptera, Ichneumonidae, Pimplinae) from Brazil and a description of a new species. Brazilian Journal of Biology., vol. 68, no. 2, p. 457-458.

--, 2008b. First record of Ticapimpla vilmae Gauld, 1991 (Hymenoptera, Ichneumonidae, Pimplinae) from Brazil. Brazilian Journal of Biology, vol. 68, no. 4, p. 911.

MARSH, PM., 1997. Subfamily Doryctinae. In WHARTON, RA., MARSH, PM., SHARKEY, MJ., ed. Manual of the New World Genera of the family Braconidae (Hymenoptera). p. 439. Special Publication of the International Society of Hymenopterist.

--, 2002. The Doryctinae of Costa Rica (excluding the genus Heterospilus). Memoirs of the American Entomological Institute, vol. 70, p. 166.

ONODY, HC. and PENTEADO-DIAS, AM., 2006. Aiura, a new genus of Campopleginae (Hymenoptera: Ichneumonidae) from Brazil. Brazilian Journal of Biology, vol. 66, no. 2b, p. 755-758.

WHARTON, RA., MARSH, PM. and SHARKEY, MJ., 1997. Manual of the new world genera of the family Braconidae (Hymenoptera). Special Publication of the International Society of Hymenopterists, no. 1, p. 207.

ZALDIVAR-RIVERON, A., BELOKOBYLSKIJ, SA., LEON-REGAGNON, V., BRICENO-GR., QUICKE, DLJ., 2008. Molecular phylogeny and historical biogeography of the cosmopolitan parasitic wasp subfamily Doryctinae (Hymenoptera: Braconidae). Invertebrate Systematics, no. 22, p. 345.

Castro, CS. (a) *, Nunes, JF. (a) * and Penteado-Dias, AM. (b) *

(a) Programa de Pos-graduacao em Ecologia e Recursos Naturais, Universidade Federal de Sao Carlos--UFSCar, CP 676, CEP13565-905, Sao Carlos, SP, Brazil

(b) Departamento de Ecologia e Biologia Evolutiva, Universidade Federal de Sao Carlos--UFSCar, CP 676, CEP13565-905, Sao Carlos, SP, Brazil

* e-mail: clovissormus@hotmail.com; fiorelini@gmail.com; angelica@ufscar.br

Received November 23, 2009--Accepted February 8, 2010--Distributed February 28, 2011 (With 6 figures)
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Title Annotation:BIOLOGY
Author:Castro, C.S.; Nunes, J.F.; Penteado-Dias, A.M.
Publication:Brazilian Journal of Biology
Date:Feb 1, 2011
Words:1062
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