ABSTRACT. This paper presents a five years survey of endoparasitoids obtained from the larvae of frugivorous Tephritidae and Lonchaeidae flies. The insects were reared from cultivated and wild fruits collected in areas of the cerrado in the State of Mato Grosso do Sul, Brazil. The flies obtained from 14 host fruit species were eight Anastrepha species, Ceratitis capitata (Wiedemann, 1824) (Tephritidae); Dasiops sp. and Neosilba spp. (Lonchaeidae). Eleven parasitoid species were collected: Braconidae -Asobara anastrephae (Muesebek, 1958), Doryctobracon areolatus (Szépligeti,

The Eucoilinae, together with the Opiinae (Braconidae) are the most important parasitoids of the flies of the superfamily Tephritoidea. In order to provide knowledge on the Eucoilinae species in Brazil such as geographic distribution, hosts and the parasitism levels, 170 samples of parasitoids from 51 counties of the five Brazilian regions were examined. A total of 2025 parasitoids were obtained from which, six species (42.82%) have been associated to larvae of Tephritoidea. The parasitoids were associated to seven species of fly larvae which feed on the fruits of 33 species belonging to 15 families. The Eucoilinae species are generalists, as they parasite Anastrepha species (Tephritidae) and Lonchaeidae as well. Aganaspis pelleranoi (Brèthes) was the most abundant species (29.93%) with the broadest distribution in Brazil. Dicerataspis flavipes (Kieffer) was only collected in São Paulo State, associated to Anastrepha species. This parasitoid is attracted to star fruits (Averrhoa carambola L.), since 96,34% of D. flavipes were obtained in larvae inside this fruit. Lopheucoila anastrephae (Rhower) and Odontosema anastrephae Borgmeier were associated to Anastrepha pseudoparallela (Loew) and to species of Neosilba in Passifloraceae (first record). Aganaspis nordlanderi Wharton was recorded in Amazonas State associated to Anastrepha bahiensis Lima (first record). Aganaspis pelleranoi, D. flavipes and L. anastrephae were associated to Anastrepha amita Zucchi in Citharexylum myrianthum Cham. in São Paulo State (first record). Trybliographa sp. parasites mainly lonchaeid larvae, and it is being recorded for the first time in the State of São Paulo. The parasitism levels varied from 0.07 to 42.86%, depending on collection sites, fruit types and host flies.Recebido em 22/10/98. Aceito em 29/03/99.

The Eucoilinae (Cynipoidea, Figitidae) are koinobiont endoparasitoids of dipterous larvae and along with the Opiinae (Braconidae) they are the most important natural enemies of the frugivorous flies (Tephritidae, Lonchaeidae and Drosophilidae). This paper deals with the identity, geographical distribution and host associations of eucoiline species with these biological characteristics in Brazil and provides a key for their identification. Eight species are studied, namely: Lopheucoila anastrephae (Rohwer, 1919), Odontosema anastrephae Borgmeier, 1935; Tropideucoila weldi Costa Lima, 1940, Aganaspis pelleranoi (Brèthes, 1924), A. nordlanderi Wharton, 1998, Trybliographa infuscata Gallardo, Diaz & Uchôa, 2000, Dicerataspis grenadensis Ashmead, 1896 and Leptopilina boulardi (Barbotin, Carton & Kelner-Pillaut, 1979). New geographic records for Brazil are provided for L. anastrephae, T. weldi, D. grenadensis, O. anastrephae, T. infuscata and L. boulardi. Bionomic observations suggest that A. pelleranoi is the species most frequently associated with tephritid flies and probably, the most useful as a biological control agent. Lopheucoila anastrephae is an important parasitoid of lonchaeids and D. grenadensis and L. boulardi are natural enemies of drosophilids.

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The Species of the Genus Bombus Latreille in Argentina (Hymenoptera: Apidae). Taxonomic Study and Keys for their Identification ABSTRACT-This study presents a taxonomic review of the Argentinean species of Bombus. Keys to identify female and male specimens at the species level [including the Palearctic species, Bombus (Megabombus) ruderatus] are given. Three subgenera are recognized: Fervidobombus, the most diversified, with six different species; Coccineobombus and Robustobombus each with one species. For each taxon, queen, worker and male descriptions are given, as well as the following information: morphological variation, comparative comments and geographic distribution. Also, for each taxon SEM photographs of male genitalia and drawings of female sting capsule are provided.

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This paper deals with 11 species of Cynipoidea parasitoids of dung-flies in Brazil: Neralsia splendens (Borgmeier 1935), Triplasta (Triplasta) atrocoxalis (Ashmead 1895), Triplasta (Pentaplasta) coxalis (Ashmead 1895), Acantheucoela armata (Cresson 1865), Acantheucoila brevispina Dettmer 1930, Acantheucoila coprophila Borgmeier 1935, Acantheucoila fumipennis Borgmeier 1935, Coneucoela brasiliensis Kieffer 1909, Ganaspis fulvocincta Kieffer 1909, Kleidotoma nigra (Hartig 1840), and Paraganaspis egeria Diaz & Gallardo 1996. An illustrated key for their identification, the hosts and the geographic distribution for each species are also given.