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Pupae of Thyrinteina arnobia (Stoll) and

ABSTRACT. Survey of the hymenopterous parasitoids (Insecta, Hymenoptera) from the Parque Estadual da Fonte Grande, Vitória, ES, Brazil. Parasitoids Hymenoptera were collected in a trail inside the Parque Estadual da Fonte Grande (20º17'51.7''S; 40º20'13.1''W), located in an area of the Atlantic Forest, during the period of June 2000 to July 2001. A total of 4,595 specimens, belonging to 28 families, have been collected. Braconidae, Eulophidae, and Scelionidae, were the most common families, with relative abundance of 22.5%, 14.32%, and 13.12%, respectively. Sixteen families showed the relative frequency lower than 1%. A preliminary list with 47 genera of some of the families is included.

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-The objective of this work was to record the diversity of parasitoid of two aphid species, Brevicoryne brassicae L. and Aphis nerii Boyer de Fonscolombe in a site at Uberlândia, MG, and the relationship between parasitoid size and their mummies size, with reference to the host species. B. brassicae were collected on kale (Brassica oleracea L. var. acephala D.C.) and A nerii on milkweed (Asclepias curassavica L.). Samplings were made monthly from May, 1999 to May, 2000 in two experimental gardens. Morphometric measurements for both aphids and parasitoids were simplified by PCA analysis to achieve a multivariate size index. The parasitic Hymenoptera species associated with A. nerii were also found as parasitoids of B. brassicae, but with distinctive relative frequencies. Diaeretiella rapae (M'Intoch) (93.2%), Aphidius colemani Viereck (4.5%) and Lysiphlebus testaceipes (Cresson) (2.3%) were the parasitoids obtained from B. brassicae. Hyperparasitoids associated with these parasitoids were Alloxysta fuscicornis (Ashmead) (57.8%), Syrphophagus aphidivorus (Mayr) (25.1%) and Pachyneuron sp. (17.1%). The parasitoids found in A. nerii were: L. testaceipes (96.1%), A. colemani (3.9%) and the hyperparasitoids Pachyneuron sp. (85.2%) and S. aphidivorus (14.8%). Parasitoid size was correlated with mummy size for both A. nerii and B. brassicae. S. aphidivorus from A. nerii were significantly larger than those from B. brassicae. However, such differences were not detected for L. testaceipes, A. colemani or for Pachyneuron. Mummies of A. nerii were significantly larger than those of B. brassicae. No sexual dimorphism for size was detected.

ABSTRACT. A checklist composed of 105 species of parasitic Hymenoptera, which includes the non-aculeate Apocrita, recorded in the state of Mato Grosso do Sul (MS), Brazil, is presented. A new list, containing 153 genera obtained in recent surveys is also presented; out of these 131 are new records. The major knowledge gaps for these organisms in the State and the prospects for future studies for these organisms are discussed.

Conura, the largest genus of Chalcididae (Hymenoptera: Chalcidoidea), is mostly distributed in the New World where 295 of the 301 described species occur. Chalcididae are in some cases hyperparasitoids of insects. In this study, we report the unusual association of the hyperparasitoid Conura baturitei sp. nov. with spider species of the genus Theridion Walckenaer (Theridiidae) through Zatypota riverai Gauld (Ichneumonidae, Pimplinae, Polysphincta genus-group), a primary ectoparasitoid of spiders. The new species is described and illustrated, and the host-parasitoid-hyperparasitoid interaction is discussed.

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