José Antonio Sánchez-García

Parasitoides Asociados a Anthonomus sisyphus Clark (Coleoptera: Curculionidae) en Frutos de Nanche Rojo (Malpighia mexicana) en Oaxaca, México

Abstract. Malpighia mexicana, or red nanche, is a plant with edible fruits, used on crafts and medicine, as well as for the establishment of living fences. The objective of this work was to catalog the parasitoids associated with Anthonomus sisyphus Clark (Coleoptera: Curculionidae) in the fruit of M. mexicana in the central valleys of Oaxaca, México. The sampling sites were located in San Lorenzo Cacaotepec and the Ethnobotanical Garden of Santo Domingo. From 2005 to 2007, mature red nanche fruits were collected weekly to determine the emergency of the parasitoids. The fruits were weighed, counted and placed in trays. The greatest infestation was found in San Lorenzo Cacaotepec with 1.16 to 1.44 weevils per fruit while in the Ethnobotanical Garden were 0.74 to 1.18 weevils per fruit. Seven different species of parasitoids belonging to the families Braconidae, Pteromalidae, and Eupelmidae were found associated with A. sisyphus. The most abundant species were Triaspis eugenii, Diospilus sp., and Bracon sp. The Ethnobotanical Garden was the site with the greatest abundance of species of parasitoids and presented the highest level of parasitism. The species with the highest proportion of males were Bracon sp. in 2005 and 2007 and T. eugenii in 2006.

Insecticidal Effect of Botanical Extracts on Developmental Stages of Bactericera cockerelli (Sulc) (Hemiptera: Triozidae)

Abstract. Insecticidal effect of aqueous and ethanol extracts of dried leaves of Ambrosia artemisiifolia L., Piper auritum Kunth, and Taraxacum officinale F. H. Wiggwere determined on developmental stages of potato/tomato psyllid, Bactericera cockerelli (Sulc). When aqueous extract at 0.2 g/ml was applied to psyllid nymphs, A. artemisiifolia extract was most toxic, P. auritum was moderately toxic, and T. officinale was slightly less toxic. Ethanol extract of A. artemisiifolia killed more than 50% of 2nd, 3rd, and 5th instar nymphs treated with 0.001, 0.01, and 0.1 g/ml, respectively. P. auritum was effective on 3rd and 4th instars and T. officinale on 5th and 3rd instars at 0.01 and 0.1 g/ml, respectively. Ethanol extracts of the three plant species killed 50 to 60% of adults with 0.1 g/ml and 30 to 45% with 0.01 g/ml. Extracts of Argemone mexicana L., Azadirachta indica A. Juss, Petiveria alliacea L., and Tagetes filifolia Lag. were evaluated on 4th and 5th instar nymphs. Ethanol extract of leaves of A. mexicana at 0.2 g/ml killed 100% of 5th instar nymphs at 24 hours and 93% of 4th instars at 72 hours. A. indica, P. alliacea, and T. filifolia at 0.2 g/ml killed 85, 88, and 87%, respectively, of 5th instar nymphs.

Two New Species of Phyllophaga Harris (Coleoptera: Melolonthidae: Melolonthinae) from Oaxaca, Mexico

Abstract. Descriptions of two new species of June beetles from Mexico are presented: Phyllophaga (Listrochelus) herminiae, found at Teposcolula, Mixteca region, Oaxaca (2,180 m altitude); and P. (Phyllophaga) jorgevaldezi, from San Nicolás Yaxe, Central Valleys region, Oaxaca (1,550 m altitude). Images of diagnostic characters and comments about differences among the new and other Mexican species of Phyllophaga are included.

Species Richness of the Genus Phyllophaga (Coleoptera: Melolonthidae) in the North of the State of Veracruz, Mexico

Abstract. In Ozuluama region in northern Veracruz, Mexico, 1,888 specimens of the genus Phyllophaga were collected. Six species were recognized from three subgenera and five species groups. The most abundant species was Phyllophaga trichodes (Bates). The numbers of P. crinita (Burmeister), P. xkumuka Morón, and P. temora Saylor are new state records.

First Record of Toxomerus politus1 Larvae Preying on Sentinel Eggs of Spodoptera frugiperda2 on Maize

Resumen. Se documenta por primera vez la presencia de larvas de Toxomerus politus depredando huevos de Spodoptera frugiperda colocados en hojas de maíz en Oaxaca, México.

A new species of Apanteles Foerster (Hymenoptera: Braconidae) parasitic of two blackberry leafrollers (Lepidoptera: Tortricidae) in Mexico.

Abstract A new species of Apanteles from Mexico is described and illustrated. Apanteles montezumae Sánchez, Figueroa and Whitfield, new species, attacks Argyrotaenia montezumae Walsingham and Amorbia cuneana (Walsingham) (Lepidoptera: Tortricidae) on Rubus sp. in Michoacan state, Mexico.

A New Species of Eurytenes Foerster (Hymenoptera, Braconidae, Opiinae) from Mexico

Abstract E. dolichocerus Figueroa and Sanchez, new species of Eurytenes from Mexico is described and illustrated. A key to identify the described species of Eurytenes s. str. of the New World is included.

A New Species of Diospilus Haliday (Hymenoptera: Braconidae, Brachistinae, Diospilini) from Mexico

Abstract A species of Diospilus from Mexico is described and illustrated. Diospilus sisyphus Sánchez, Figueroa and Sharkey new species attacks Anthonomus sisyphus Clark (Coleoptera: Curculionidae) on the fruit of red nanche, Malpighia mexicana A. Juss. A key is included to identify the described species of Diospilus of the New World.