Abstract This catalogue lists the type specimens of Crabronidae and Sphecidae (Hymenoptera: Apoidea) deposited in the Museu de Zoologia da Universidade de São Paulo, Brazil (MZUSP). The collection includes a total of 83 type specimens (17 holotypes, 66 paratypes), 82 of which belong to nine genera and 35 species of Crabronidae and only one of Sphecidae. All labels contents and additional information obtained from other available sources are presented. High resolution photographs of the primary types are also provided.

Abstract Predatory wasps or hunters are important in ecosystems because they regulate the populations of other insects and spiders. In the state of Yucatán, these insects have been studied very little and in this work, their spatial and temporal diversity was determined in the 2 main vegetation types of Yucatán, low deciduous forest and the medium subcaducifolia forest. The material reviewed comes from Malaise traps placed in areas of vegetation types, which were active one year and from collections with aerial networks. We reviewed 877 individuals belonging to 4 families of predatory wasps (Crabronidae, Pompilidae, Sphecidae and Vespidae), 68 species were identified, being Crabronidae the richest family (26) and Pompilidae the most abundant (458 individuals). In the low deciduous forest, the highest abundance and species richness was found (86% and 91%, respectively) than in the medium subcaducifolia forest (48% and 13%). There were no differences in species richness and abundance between seasons of the year but the composition of species had low similarity. Ten new species records were found for Yucatán. Other studies of these wasps are suggested in the neotropics, especially in Mexico, and the importance of their biodiversity in the studied ecosystems is indicated for their conservation and possible use.

Resumen Las avispas depredadoras o cazadoras son importantes en los ecosistemas ya que regulan las poblaciones de otros insectos y arañas. En este trabajo se determinó la diversidad espacial y temporal de avispas depredadoras en los 2 tipos de vegetación principales del estado de Yucatán: selva baja caducifolia y selva mediana subcaducifolia. El material revisado proviene de trampas Malaise colocadas en áreas de los tipos de vegetación, que estuvieron activas 1 año y de recolectas con red aérea. Se revisaron 877 individuos pertenecientes a 4 familias de avispas depredadoras (Crabronidae, Pompilidae, Sphecidae y Vespidae), se identificaron 68 especies, siendo Crabronidae la familia con mayor riqueza (26) y Pompilidae la de mayor abundancia (458 individuos). En la selva baja caducifolia se encontró mayor abundancia y riqueza de especies (86% y 91%, respectivamente) que en la selva mediana subcaducifolia (48% y 13%). No hubo diferencias en la riqueza de especies y la abundancia entre temporadas del año, pero la composición de especies tuvo baja similitud. Se encontraron 10 nuevos registros de especies para Yucatán. Se sugieren otros estudios de estas avispas en el neotrópico, en especial en México, y se indica la importancia de su biodiversidad en los ecosistemas estudiados para su conservación y posible uso.

Abstract: Examination of old Sceliphron jamaicense (Fabr.) nests at 4 localities near the tip of the Baja California peninsula showed levels of brood success (i.e., the fraction of fully provisioned, closed cells producing viable adult offspring) between 24.6% and 58.1% per site. Failure was predominantly at the pupal stage at all localities. Successful cells are commonly reutilized by other solitary wasps, primarily Trypoxylon (Trypargilum) dubium Coville and Chalybion californicum (Sassure, 1867). There is a pronounced clumping tendency in successes and failures among nests.

Resumen: Se llevó a cabo la revisión de nidos de Sceliphron jamaicense (Fabr.) en 4 localidades hacia el extremo austral de la península de Baja California. Las crías de las celdas mostraron niveles de éxito variable (i.e., la proporción de celdas cerradas y provistas con arañas que contenían adultos viables), entre 24.6% y 58.1%, según la localidad. Los fracasos se presentaron generalmente en estado de pupa. Las celdas exitosas a menudo son reutilizadas por otras avispas solitarias, sobre todo por Trypoxylon (Trypargilum) dubium Coville y Chalybion californicum (Sassure). Los éxitos y fracasos de la progenie demostraron un patrón de agregación entre los nidos.

RESUMO Apresentamos aqui uma lista de espécies de vespas esfeciformes das famílias Ampulicidae, Sphecidae e Crabronidae registradas para o oeste e sudoeste do estado de Mato Grosso do Sul em inventários recentes realizados em 22 pontos amostrais, com principal ênfase na Serra da Bodoquena, contemplando os principais biomas do estado como o Cerrado, a Mata Atlântica e o Chaco Brasileiro. Foram registrados 506 indivíduos distribuídos em 109 espécies e 47 gêneros. Trypoxylon Latreille foi o gênero mais diverso com 155 indivíduos coletados e 12 espécies, sendo o único gênero amostrado em todas as metodologias. Eremnophila binodis (Fabricius, 1798) foi a espécie mais abundante registrada dentre os esfeciformes, com 35 indivíduos coletados. Esta lista acrescenta 83 novos registros de distribuição de espécies dessas vespas no estado, ampliando para 139 espécies de vespas esfeciformes conhecidas para o estado.

ABSTRACT Here we present a species list of spheciformes wasps of the families Ampulicidae, Sphecidae and Crabronidae, registered in west and southwest of the Mato Grosso do Sul state, Brazil. The surveys were conducted in 22 sampling points, with emphasis on Serra da Bodoquena region, covering the biomes: Cerrado, Atlantic Forest and Chaco. We recorded 506 individuals distributed in 47 genera and 109 species. Trypoxylon Latreille was the most diverse genus with 155 individuals collected and 12 morphospecies, being the only genus sampled in all methodologies. Eremnophila binodis (Fabricius, 1798) was the most abundant species recorded from these wasps with 35 individuals collected. This list adds 83 new records to this wasp’s distribution in the state, expanding to 139 species of wasps spheciformes known to the state.

Resumo: Os objetivos deste trabalho foram conhecer a fauna de Hymenoptera associada à cultura da melancia e avaliar a influência das armadilhas Pitfall, Moericke e McPhail na captura desses insetos, em ambiente semiárido no estado do Rio Grande do Norte. O levantamento foi realizado entre os meses de agosto e setembro de 2011, em área de produção comercial de melancia cv. Crimson Sweet. As coletas dos himenópteros foram realizadas, semanalmente, durante o ciclo da cultura. Para captura dos insetos, foram utilizados três tipos de armadilhas, Pitfall, Moericke e McPhail, na densidade de 20, 20 e 1 armadilha por hectare, respectivamente. As armadilhas foram instaladas sete dias após o plantio das sementes, e mantidas na área até a colheita dos frutos. Foram coletados um total de 3.123 himenópteros pertencentes a 10 superfamílias, distribuídas em 24 famílias. Formicidae foi a mais representativa, com abundância relativa total de 54,43%, seguida por Apidae com 17,96%. Foi observada também a presença de 18 famílias de himenópteros parasitoides (18,89%), com destaque para Platygastridae (6,60%), Encyrtidae (2,79%), Chalcididae (2,56%), Mymaridae (2,56%), Pompilidae (1,15%) e Trichogrammatidae (1,09%). Ressalta-se ainda a ocorrência das famílias de predadores Crabronidae (6,34%), Vespidae (2,24%) e Sphecidae (0,10%). Dentre as armadilhas, Moericke capturou a maior diversidade de Hymenoptera (24 famílias), seguida por Pitfall (11 famílias) e McPhail (sete famílias).

ABSTRACT: The aims of this study were to identify the Hymenoptera fauna associated with watermelon crops and assess the influence of Pitfall, Moericke and McPhail traps in capturing these insects in the semiarid environment of the state of Rio Grande do Norte, Brazil. The survey was conducted between the months of August and September, 2011, in a commercial watermelon cv Crimson Sweet production área. The collection of the Hymenoptera was conducted weekly during the crop cycle. To capture the insects, three types of traps were used, Pitfall, Moericke and McPhail, in densities 20, 20 and 1 trap per hectare, respectively. The traps were installed seven days after seeding and maintained in the area until harvest. A total of 3,123 Hymenoptera were collected, belonging to 10 superfamilies, and 24 families. Formicidae was the most representative, with a total relative abundance of 54.43%, followed by Apidae with 17.96%. The presence of 18 families of parasitoids (18.89%) was also observed, notably Platygastridae (6.60%), Encyrtidae (2.79%), Chalcididae (2.56%), Mymaridae (2.56%), Pompilidae (1.15%) and Trichogrammatidae (1.09%). The occurrence of predators from the families Crabronidae (6.34 %), Vespidae (2.24 %) and Sphecidae (0.10%) is noteworthy. Among the traps, Moericke captured the greatest diversity of Hymenoptera (24 families), followed by Pitfall (11 families) and McPhail (seven families) traps.

This paper provides faunistic information of predatory wasps collected during one year of field work in 6 Natural Protected Areas (NPAs) from the state of Yucatán, Mexico. The results are compared with published information for the state and the similarity was determined in the species composition between NPAs. The study included 1,145 specimens belonging to 4 families, which are deposited in the Entomological Collection Regional Autonomous University of Yucatán. We recorded 78 species and morphospecies; 26 species are new records for Yucatán and the Yucatán Peninsula. Vespidae had the highest number of specimens (68%), followed by Pompilidae (23%), Crabronidae (8%) and Sphecidae (1%). NPAs with the highest number of species were Yalahau and Tabi (43 and 32 species, respectively). Highest similarity was found between NPAs Tabi and Kabah (57%). The results indicate that more studies are needed in order to know the predatory wasps' fauna of tropical areas in Mexico.

En este trabajo se presenta la información faunística de avispas depredadoras, reunida en un año de recolectas en 6 áreas naturales protegidas (ANP) del estado de Yucatán, México. Los resultados se compararon con la información publicada para el estado y se determinó la similitud en la composición de las especies entre las ANP. Se determinaron 1,145 ejemplares pertenecientes a 4 familias, los cuales se encuentran depositados en la Colección Entomológica Regional de la Universidad Autónoma de Yucatán. Se registraron 78 especies y morfoespecies; 26 especies son nuevos registros para Yucatán y la península de Yucatán. La familia Vespidae fue la mejor representada (68% de los ejemplares), seguida de Pompilidae (23%), Crabronidae (8%) y Sphecidae (1%). Las ANP con el mayor número de especies fueron Yalahau y Tabi (43 y 32 especies, respectivamente). La mayor similitud, en la composición de especies, se encontró entre las ANP Kabah y Tabi (57%). Los resultados indican que se requieren más estudios encaminados a conocer la fauna de avispas depredadoras en la región tropical de México.

Con base en la revisión de diferentes caracteres taxonómicos en 320 ejemplares depositados en colecciones de referencia y en las recolectas de campo se confirmó la presencia en Colombia de las especies Sceliphron asiaticum y Sceliphron fistularium que se diferencian por patrones de coloración, el propodeo en asiaticum tiene una mancha entera y en fistularium la mancha está fragmentada a ambos lados de línea media. Los resultados alcanzados permitieron la elaboración de claves taxonómicas para la diferenciación de los subgéneros, grupos de especies y de todas las especies en la región Neotropical y a nivel particular para las especies en Colombia. Las dos especies del país son ilustradas y se proporciona su distribución geográfica detallada.

A synopsis of the Colombian mud dauber wasps of the genus Sceliphron is offered. Two species are known for the country: S. asiaticum and S. fistularium, based on study of museum specimens and field collections. Literature records of S. caementarium are uncertain as specimens of this species could not be examined. Keys, descriptions, high resolution pictures and distribution maps are provided for both species occurring in the country.

Com o objetivo de incrementar o banco de dados produzido durante o projeto Diversidade da Mata Atlântica do Estado do Rio de Janeiro, novos registros geográficos de vespas esfecídeas no Estado do Rio de Janeiro são fornecidos. A fauna de esfecídeos encontrada em planície costeira arenosa, áreas baixas florestadas e áreas altas da Serra dos Órgãos são comparadas e uma estimativa do número total de espécies encontrada no Estado do Rio de Janeiro é fornecida.

Aiming to improve the database produced during the project Diversity of the Atlantic Forest of the Rio de Janeiro State, new geographic records of sphecid wasps in Rio de Janeiro State are provided. The sphecid fauna found in the sandy coastal plains, lowland forested areas and highland areas on the Serra dos Órgãos are compared and an estimate of the total number of species of Sphecidae from Rio de Janeiro State is provided.

One hundred and twenty four species and forty four genera of sphecoid wasps collected at localities of eleven municipalities of Tamaulipas, Mexico were recorded. Twenty three species and three genera are new records for the country meanwhile 94 species and 26 genera are new records for the state of Tamaulipas. Crabronidae and Sphecidae comprise 98 and 26 species respectively. The most abundant species were Ammophila picipes and Trypoxylon (Trypargilum) spinosum. Ammophila picipes is the most widely distributed species. From the 103 genera and 658 species recorded in Mexico 54 genera (52%) and 142 species (21.6%) have been found in Tamaulipas.

Se registran 124 especies y 44 géneros de avispas esfécidas de localidades de once municipios de Tamaulipas, México. Veintitrés especies y tres géneros son nuevos registros para el país y 94 especies y 26 géneros son nuevos registros para el Estado de Tamaulipas. Crabronidae y Sphecidae comprenden 98 y 26 especies, respectivamente. Las especies más abundantes son Ammophila picipes y Trypoxylon (Trypargilum) spinosum. La especie Ammophila picipes también es la de mayor distribución. Con la información disponible, para la República Mexicana se conocen 103 géneros y 658 especies y para Tamaulipas 54 géneros y 142 especies.

D. falcifera sp. nov. e D. moratoi sp. nov. coletadas no interior de ninhos de vespas da família Sphecidae, servindo como presas para imaturos, são descritas do Estado do Acre, Brasil.

D. falcifera sp. nov. and D. moratoi sp. nov., collected inside the wasps' nests of the family Sphecidae serving as preys for the immature forms, are described from the State of Acre, Brazil.

Aglaopteryx sacrificata sp. nov. é descrita com base em caracteres morfológicos da genitália do macho. A espécie foi coletada em ninhos de vespas solitárias da família Sphecidae, no estado do Amazonas, Brasil.

Aglaopteryx sacrificata sp. nov. is described on the basis of the morphological characters of the genitalia of the male, which are illustrated. The species was collected from the nests of solitary wasps of the family Sphecidae (Hymenoptera) from the Amazonas State, Brazil.

The ultrastructure of silk glands in adult females of sphecid wasps is described. Individual glands are scattered in the more posterior portion of the metasoma being each gland formed by an enlarged secretory unity with one conducting canal. Each secretory unit is a gland cell containing a large lumen and numerous secretory granules, which are delimited by membrane and filled with middle electron dense content of homogeneous aspect, which are exocytosed into the extra cellular lumen. Cell cytoplasm is filled with rough endoplasmic reticulum, polyribosomes and Golgi apparatuses profiles. The basal plasma membrane has many short infoldings and is lined by a thin basement membrane. The apical membrane is invaginated to form the boundary of the lumen, containing scattered short microvilli. The cells are mononucleated and the nucleus is pleomorphic containing disperse chromatin. The extracellular lumen is separated of the receiving canal by a convoluted sponge-like wall forming many villi, which in their tip are lined by a thin single layered cuticle. In the basal region of the villi a cuticular covering is lacking. In the conducting canal secretion acquire two different electron densities. A thin cuticle lines the lumen of conducting canal and the cell cytoplasm is scarce and the organelles are represented for few rough endoplasmic reticulum and polyribosomes. These results are discussed in relation to function and origin of silk gland in adult Sphecidae

Se describe la ultraestructura de las glándulas de la seda en tres hembras adultas de avispas Sphecidae del género Microstigmus. Las glándulas individualmente se dispersan en la porción más posterior del metasoma, y cada una de ellas está formada por una unidad secretora grande y un canal que conduce la secreción. Cada célula de la unidad secretora contiene un gran lumen y numerosos gránulos secretores, los que están delimitados por una membrana y repletos de un contenido denso a los electrones de aspecto homogéneo, el que es eliminado hacia el lumen. El citoplasma de la célula está repleto de perfiles del retículo endoplasmático granular, de polirribosomas y de aparatos de Golgi. La membrana plasmática basal presenta muchos repliegues cortos hacia el interior y está revestida por una membrana basal fina. La membrana plasmática apical está invaginada para formar el límite del lumen extracelular, lleva microvellosidades cortas y dispersas. Las células son mononucleadas y el núcleo es de forma variada y contiene cromatina dispersa. El lumen está separado del canal de recepción por una pared replegada semejante a una esponja, con muchas vellosidades, las que en su extremidad están delimitadas por una cutícula fina. En la región basal, las vellosidades carecen de cubierta cuticular. El canal que conduce la secreción adquiere dos densidades de electrones diferentes. Una cutícula fina reviste el lumen del canal que conduce la secreción, siendo escaso el citoplasma de la célula y conteniendo poco retículo endoplasmático granular y polirribosomas. Estos resultados se discuten en relación a la función y al origen de la glándula de seda en los adultos de Sphecidae

Os machos previamente desconhecidos de Trypoxylon scrobiferum Richards e Trypoxylon anapaike Amarante são descritos e a sua genitália ilustrada. Ambas espécies são transferidas do subgênero Trypargilum para o subgênero Trypoxylon, incluídas em um novo grupo de espécies, grupo scrobiferum, aqui criado para abrigá-las.

The males of Trypoxylon scrobiferum Richards and T. anapaike Amarante are described for the first time and their genitalia illustrated. These species are demonstrated to represent a monophyletic group, and the scrobiferum species group is established for them. The scrobiferum species group is assigned to the subgenus Trypoxylon. This represents a new subgeneric combination for T. scrobiferum Richards.

Erros e omissões encontrados em "A synonymic catalog of the Neotropical Crabronidae and Sphecidae" (Amarante, 2002) são corrigidos. Nomes novos patra homônimos juniores são propostos, Cerceris cisplatina nom. nov. para Cerceris dichroa Brethes, 1909 non Dalla Torre, 1890, e Mimesa modesta mallochi nom. nov. para Mimesa modesta reticulata (Malloch, 1933) non Cameron, 1902. Números de espécies para os taxons são atualizados.

Errors and omissions found in "A synonymic catalog of the Neotropical Crabronidae and Sphecidae" (Amarante, 2002) are corrected. Substitute names for junior homonyms are proposed, Cerceris cisplatina new name for Cerceris dichroa Brethes, 1909 non Dalla Torre, 1890, and Mimesa modesta mallochi new name for Mimesa modesta reticulata (Malloch, 1933) non Cameron, 1902. Statitics for the taxa are updated.

Three new species of Chorisoneura Brunner, 1865 from Acre State, Brazil collected in nests of Podium Fabricius, 1804 (Hymenoptera, Sphecidae) are described. Illustrations of genitalia are presented.