DOCSLIB.ORG

Tacayá 15, Diciembre 2006

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Tacayá 15, Diciembre 2006 Tacayá 15, Diciembre 2006 ISSN 1909-8146 UNIÓN INTERNACIONAL PARA EL ESTUDIO DE LOS INSECTOS SOCIALES Sección Bolivariana LABUN TACAYÁ Boletín divulgativo para Investigadores en Abejas, Avispas, Hormigas y Termitas Diciembre 2006 No. 15, Bogotá Colombia Editora: Guiomar Nates Parra, [email protected] Colaborador: Iván Andrés Ardila Hoyos, [email protected] Laboratorio de Investigaciones en Abejas-LABUN Depto. Biología, Facultad de Ciencias, Universidad Nacional de Colombia A.A. 14490. Fax: 3165310 Tel. 3165000 ext. 11335 Bogotá D. C. Colombia EDITORIAL En este nuevo número de Tacayá tenemos una buena noticia. A partir de ahora Tacayá tiene ISSN. Esto nos obliga a ser mas regulares en la publicación y hacerla llegar a varias bibliotecas. La idea es mantener un número anual y si es posible dos. Pero eso depende de la colaboración de todos los investigadores de la región Bolivariana. En esta publicación se muestra que los insectos sociales están ganando cada vez más adeptos: fisiología en Bombus, morfometría y comportamiento en Vespidos, ecología en hormigas, Biogeografía en Euglosinos, microbiología en Abejas sin aguijón, polinización son algunos de los temas expuestos en este boletín. Esta es una muestra muy pequeña del quehacer “entomológico social” en un par de países de la región Bolivariana. Creemos que hay mucho mas por contar….pero necesitamos enterarnos para publicarlo. Muchos mas de estos temas estaremos oyendo y viendo en nuestra próxima reunión de la sección Bolivariana de la IUSSI. Los colegas de Venezuela están trabajando fuerte en la organización del VI Coloquio y estamos seguros será una reunión muy interesante y agradable. En las páginas interiores de este boletín se encuentra la lista de las conferencias magistrales ya confirmandas. Los temas son excelentes! Hasta el 31 de Julio hay plazo para enviar resúmenes! Por otro lado, queremos compartir la celebración que hicimos con motivo de los 30 años de fundación del LABUN. Para conmemorarlo realizamos el III encuentro Colombiano sobre abejas silvestres en la ciudad de Santa Marta (Colombia) en noviembre del 2006, con participación de investigadores de varios países americanos. 1 Tacayá 15, Diciembre 2006 temperatura, pero luego vuelve a proporcionalmente con el tamaño; INVESTIGANDO aumentar. Debido a que el patrón no obstante, las especies más presentado corresponde al de un pequeñas tienen mesosomas Efecto de la presión parcial de homeotermo estos resultados proporcionalmente más grandes. oxígeno y de la temperatura exigen mayor comprobación En este momento se está haciendo sobre el consumo de oxígeno en un análisis de morfometría Apis mellifera, Bombus Esperamos ampliar estos estudios geométrica de las alas para rubicundus y Bombus atratus otras alturas utilizando individuos estudiar si tales cambios en el de otras especies que tengan una mesosoma se relacionan con la Jennifer Blanco, Fabián amplia distribución altitudinal. morfología de las alas. Vanegas, Edgar Cristancho Planeamos también realizar *** mediciones utilizando el método Laboratorio de Fisiología Animal, de flujo continuo de URAS (Ultra Evaluación del estatus Departamento de Biología, red absorption spectroscopy) en taxonómico de las especies Facultad de Ciencias, Universidad cooperación con el Instituto de Agelaia fulvofasciata y A. Nacional de Colombia Fisiología Animal de la hamiltoni (Hymenoptera: Universidad Humboldt de Berlín Vespidae) usando morfometría Es poco lo que se conoce sobre y obtener así una comparación las adaptaciones fisiológicas a la geométrica con nuestros resultados. Para disminución de la presión parcial asociar estados de cierre y/o de oxígeno (PO ) sobre de la Zioneth García 2 apertura de los espiráculos con respiración en los insectos. Por cambios circadianos en VO , esto, bajo la supervisión del Prof. 2 A. A. 7495, Laboratorio de esperamos en el futuro igualmente sistemática y biología comparada Edgar Cristancho, se están obtener registros evaluando los efectos que tiene la de insectos, Instituto de Ciencias electrofisiológicos de los Naturales, Universidad Nacional de hipoxia y la temperatura sobre el músculos espiraculares. Colombia, Bogotá, Colombia. consumo de oxígeno (VO2). [email protected] Se espera poder correlacionar los El consumo de oxígeno se ha resultados de VO2 con tasas Agelaia fulvofasciata y Agelaia medido mediante del método metabólicas, las cuales podrían hamiltoni son avispas sociales indirecto de respirometría de predecir de eficiencia de forrajeo muy similares morfológicamente Warburg, teniendo en cuenta el y distancias de vuelo, así como siendo difícil su distinción. nivel de actividad de los patrones de distribución y de Tradicionalmente su individuos y sus castas. Se han dispersión con base en diferenciación se basa en la forma hecho mediciones en el Parque características fisiológicas. de la carena pronotal y del primer Nacional Natural Chingaza *** tergo metasomal pero la variación (aprox. 3200 msnm) y en la Estudio de la variación de estos caracteres parece ser un localidades de Bogotá (2600 morfológica en Véspidos continuo entre las dos especies. msnm), Tocaima (400 msnm) y a sociales (Hymenoptera: Se están analizando caracteres nivel del mar en Santa Marta, Vespidae) morfológicos que sustenten el Colombia estatus de estas dos especies. Zioneth García, Carlos Análisis de morfometría En general, se ha encontrado una Sarmiento geométrica para el pronoto, el disminución en VO con el 2 primer tergo metasomal y el descenso en PO2 y un aumento Laboratorio de sistemática y mesosoma y análisis cuando el nivel de actividad es biología comparada de insectos, discriminantes sugieren que las mayor; de otro lado no se han Instituto de Ciencias Naturales, dos especies están evidenciado diferencias Universidad Nacional de Colombia, significativamente diferenciadas significativas entre las castas. Con Bogotá, Colombia. pero la morfometría geométrica respecto al efecto de la [email protected] muestra que deben redefinirse los temperatura se han encontrado caracteres tradicionalmente patrones distintos entre las El rango de tamaño en los usados. Solo el ancho del pronoto, especies; en A. mellifera hay una véspidos sociales neotropicales la distancia entre los espiráculos varía de tal manera que las disminución en VO2 a medida que del primer tergo metasomal y la aumenta la temperatura, mientras especies más grandes son seis longitud del mesosoma mostraron que en B. atratus hemos veces más grandes que las capacidad discriminante por lo registrado un comportamiento en pequeñas. Estudios que se proponen como caracteres morfométricos previos señalan U, del VO2, es decir, el consumo de alto valor taxonómico. En este de oxígeno disminuye hasta cierta que varias estructuras cambian momento el acopio de más 2 Tacayá 15, Diciembre 2006 ejemplares de diversas Lee, J.H.Q. & C.K. Starr, en localidades es prioritario para prensa. Violent combat among consolidar los resultados NOTAS CIENTIFICAS Polistes gigas males obtenidos hasta ahora. (Hymenoptera: Vespidae). *** ¿Hay combate entre machos de Sociobiology. Evaluación de la variación Polistes bicolor? Starr, C.K. 1992. The social wasps morfológica de las especies del (Hymenoptera: Vespidae) of Christopher K. Starr género Synoeca (Hymenoptera: Taiwan. Bull. Natn. Mus. Nat. Sci. Vespidae) (Taichung) (3):93-138. Dep't of Life Sciences Christian Celi , Carlos University of the West Indies Starr, C.K. & A.W. Hook 2006. Sarmiento St Augustine, Trinidad & Tobago Polistes goeldii (Hymenoptera: [email protected] Vespidae) is a widespread but rare A. A. 7495, Laboratorio de sistemática y biología comparada Polistes gigas es una avispa social wasp. J. Hymenoptera Res. de insectos, Instituto de Ciencias asiática, la más grande de su 15:177-80. Naturales, Universidad Nacional de *** género. Al notar las mandíbulas Colombia, Bogotá, Colombia. curvadas y muy robustas del [email protected] Nivel social y autotomía del macho, Starr (1992) pronosticó una aguijón en la familia Vespidae El género Synoeca es un pequeño competencia directa y física dentro grupo neotropical compuesto por de este sexo. Esta hipótesis acaba Christopher K. Starr, Mario cinco especies. Algunas de ellas, de corroborarse por observaciones Bissessarsingh como Synoeca septentrionalis y S. de luchas violentas entre machos surinama, son muy similares y su (Lee & Starr, en prensa). distinción puede ser problemática. Dep't of Life Sciences Mediante un detallado análisis de P. bicolor es una especie University of the West Indies caracteres morfológicos de neotropical robusta y de gran St Augustine, Trinidad & Tobago ejemplares de las cinco especies tamaño, de amplia distribución [email protected] provenientes de todo el pero evidentemente poco [email protected] neotrópico se está documentando abundante (Starr & Hook 2006). Todos sabemos que una abeja de su variación en la búsqueda de Igual que P. gigas, biológicamente miel, al picar a una persona u otro más caracteres de valor es casi desconocida. P. bicolor taxonómico. Estamos interesados vertebrado, normalmente no puede semeja a P. gigas en otro rasgo: en interactuar con colegas extraer su aguijón de la piel de la Las mandíbulas del macho, aunque adelantando trabajos similares. víctima. Pierde su aguijón, su tubo no tan espectaculares como en P. digestivo y su vida. Tal autotomía gigas, son muy grandes y fuertes. del aguijón (Hermann 1971)-una Parecen poco apropiados para una consecuencia de las púas agudas función alimenticia y del pico de cada lanceta- también perfectamente
Load more

Recommended publications
  • Proventricular Structure in Solitary Bees (Hymenoptera: Apoidea) Jose´ Eduardo Serra˜ Oã
    ARTICLE IN PRESS Organisms, Diversity & Evolution 5 (2005) 125–133 www.elsevier.de/ode Proventricular structure in solitary bees (Hymenoptera: Apoidea) Jose´ Eduardo Serra˜ oà Departamento de Biologia Geral, Universidade Federal de Vic¸osa, Vic¸osa 36570-000, MG, Brazil Received 17 June 2004; accepted 21 October 2004 Abstract Proventricular structure, analyzed by scanning electronic microscopy, is compared among 28 species of solitary bees representing four families. Observations on the shapes of proventricular folds and on hair-like cuticular projections are presented, discussed, and suggested as useful to future studies of bee systematics. r 2005 Gesellschaft fu¨ r Biologische Systematik. Published by Elsevier GmbH. All rights reserved. Keywords: Insect; Morphology; Evolution; Gut; Proventriculus Introduction Bailey (1952), Gibbs (1967), Lebrun (1985), Lebrun and Lequet (1985), and Caetano (1988) have reported In bees, the foregut consists of the pharynx, esopha- anatomical variation in the insect proventriculus, which gus, crop (honey sac), and proventriculus (Chapman, they related to the feeding habits of the insects. 1998). The proventriculus is the most specialized part of However, some studies have shown that insect gut the foregut; it lies between the honey sac and the midgut morphology is not variable in relation to feeding habits (Snodgrass, 1956). It is subdivided into three parts: (1) (for a review see Terra and Ferreira, 1994). an anterior end that protrudes into the honey sac lumen The extant bees with species found in Brazil belong to and forms the proventricular bulb, which consists of five families: Colletidae, Halictidae, Andrenidae, Mega- four lips leaving an x-shaped opening; (2) a midsection chilidae and Apidae (Roig-Alsina and Michener, 1993; or neck; and (3) a posterior cardiac valve situated within Alexander and Michener, 1995; Engel, 2000; Silveira the midgut lumen (Cruz-Landim and Rodrigues, 1967; et al., 2002).
    [Show full text]
  • The Very Handy Bee Manual
    The Very Handy Manual: How to Catch and Identify Bees and Manage a Collection A Collective and Ongoing Effort by Those Who Love to Study Bees in North America Last Revised: October, 2010 This manual is a compilation of the wisdom and experience of many individuals, some of whom are directly acknowledged here and others not. We thank all of you. The bulk of the text was compiled by Sam Droege at the USGS Native Bee Inventory and Monitoring Lab over several years from 2004-2008. We regularly update the manual with new information, so, if you have a new technique, some additional ideas for sections, corrections or additions, we would like to hear from you. Please email those to Sam Droege ([email protected]). You can also email Sam if you are interested in joining the group’s discussion group on bee monitoring and identification. Many thanks to Dave and Janice Green, Tracy Zarrillo, and Liz Sellers for their many hours of editing this manual. "They've got this steamroller going, and they won't stop until there's nobody fishing. What are they going to do then, save some bees?" - Mike Russo (Massachusetts fisherman who has fished cod for 18 years, on environmentalists)-Provided by Matthew Shepherd Contents Where to Find Bees ...................................................................................................................................... 2 Nets ............................................................................................................................................................. 2 Netting Technique ......................................................................................................................................
    [Show full text]
  • Foraging Activity of the Solitary Andean Bee, Anthophora Walteri (Hymenoptera: Apidae, Anthophorini)
    Revista Colombiana de EntomologíaForaging 32(1): activity 73-76 of the (2006) solitary andean bee, Anthophora walteri (Hymenoptera: Apidae, Anthophorini) 73 Foraging activity of the solitary andean bee, Anthophora walteri (Hymenoptera: Apidae, Anthophorini) Actividad de forrajeo de la abeja andina solitaria, Anthophora walteri (Hymenoptera: Apidae, Anthophorini) VÍCTOR H. GONZALEZ1, BERNARDO MANTILLA2, ELIANA PALACIOS2 Abstract. This note reports observations on the pollen collecting behavior and foraging activity of the solitary bee, Anthophora walteri Gonzalez on Salvia bogotensis in the Eastern Andes of Colom- bia. Bees foraged from 7:00–17:00 h, or when the temperature exceeded 15°C. Peak visits occurred between 8:00–9:00, when the temperature was about 18°C and the humidity was 60%. On average, bees spent 3 seconds at each flower and collected pollen throughout the day, although pollen- collecting trips were twice as frequent in the morning as in the afternoon. The daily number and duration of foraging trips per bee ranged from 1–13 trips (x = 6.8 ± 4.3) and 4–88 min (x = 21.7 ± 23.8). Some possible morphological and behavioral adaptations for pollen collection on flowers of Salvia, as well as thermal constraints on the foraging activity of A. walteri in the Andes are also discussed. Key words: Anthophora walteri. Foraging behavior. Salvia. Andes. Colombia. Resumen. En esta nota se registran observaciones del comportamiento de recolección de polen y actividad de forrajeo de la abeja solitaria, Anthophora walteri Gonzalez sobre Salvia bogotensis en la cordillera Oriental de Colombia. Las abejas forrajearon desde las 7:00–17:00 h o cuando la temperatura superó los 15°C.
    [Show full text]
  • Atlas of Pollen and Plants Used by Bees
    AtlasAtlas ofof pollenpollen andand plantsplants usedused byby beesbees Cláudia Inês da Silva Jefferson Nunes Radaeski Mariana Victorino Nicolosi Arena Soraia Girardi Bauermann (organizadores) Atlas of pollen and plants used by bees Cláudia Inês da Silva Jefferson Nunes Radaeski Mariana Victorino Nicolosi Arena Soraia Girardi Bauermann (orgs.) Atlas of pollen and plants used by bees 1st Edition Rio Claro-SP 2020 'DGRV,QWHUQDFLRQDLVGH&DWDORJD©¥RQD3XEOLFD©¥R &,3 /XPRV$VVHVVRULD(GLWRULDO %LEOLRWHF£ULD3ULVFLOD3HQD0DFKDGR&5% $$WODVRISROOHQDQGSODQWVXVHGE\EHHV>UHFXUVR HOHWU¶QLFR@RUJV&O£XGLD,Q¬VGD6LOYD>HW DO@——HG——5LR&ODUR&,6(22 'DGRVHOHWU¶QLFRV SGI ,QFOXLELEOLRJUDILD ,6%12 3DOLQRORJLD&DW£ORJRV$EHOKDV3µOHQ– 0RUIRORJLD(FRORJLD,6LOYD&O£XGLD,Q¬VGD,, 5DGDHVNL-HIIHUVRQ1XQHV,,,$UHQD0DULDQD9LFWRULQR 1LFRORVL,9%DXHUPDQQ6RUDLD*LUDUGL9&RQVXOWRULD ,QWHOLJHQWHHP6HUYL©RV(FRVVLVWHPLFRV &,6( 9,7¯WXOR &'' Las comunidades vegetales son componentes principales de los ecosistemas terrestres de las cuales dependen numerosos grupos de organismos para su supervi- vencia. Entre ellos, las abejas constituyen un eslabón esencial en la polinización de angiospermas que durante millones de años desarrollaron estrategias cada vez más específicas para atraerlas. De esta forma se establece una relación muy fuerte entre am- bos, planta-polinizador, y cuanto mayor es la especialización, tal como sucede en un gran número de especies de orquídeas y cactáceas entre otros grupos, ésta se torna más vulnerable ante cambios ambientales naturales o producidos por el hombre. De esta forma, el estudio de este tipo de interacciones resulta cada vez más importante en vista del incremento de áreas perturbadas o modificadas de manera antrópica en las cuales la fauna y flora queda expuesta a adaptarse a las nuevas condiciones o desaparecer.
    [Show full text]
  • A Molecular Phylogeny of the Long-Horned Bees in the Genus Melissodes Latreille (Hymenoptera: Apidae: Eucerinae)
    Insect Systematics & Evolution (2020) DOI 10.1163/1876312X-bja10015 brill.com/ise A molecular phylogeny of the long-horned bees in the genus Melissodes Latreille (Hymenoptera: Apidae: Eucerinae) Karen W. Wrighta,b,*, Kelly B. Millera and Hojun Songb aDepartment of Biology, University of New Mexico, Albuquerque, NM, USA bDepartment of Entomology, Texas A&M University, College Station, TX, USA *Corresponding author, e-mail: [email protected] Abstract The genus Melissodes Latreille in the subfamily Eucerinae (Hymenoptera: Apidae) is a widespread and common group of bees. There are 129 describedMelissodes species that range throughout the western hemisphere with the center of diversity in the warm deserts of southwestern North America. Despite its widespread nature and importance in agriculture, the evolutionary relationships among the species have never been investigated. Here, we present a molecular phylogeny using five loci for 89 species of Melis- sodes with representatives from all subgenera. We confirm all of the subgeneric delineations constructed by LaBerge, except for a paraphyletic M. (Tachymelissodes) and the placement of M. (Heliomelissodes), which renders M. (Eumelissodes) paraphyletic. We also discuss the unexpected placement of M. tristis Cockerell, M. paucipuncta LaBerge, M. dagosus Cockerell, and M. pexa LaBerge. Finally, we combine this analysis with previous data to support the placement of Melissodes within the subfamily Eucerinae. Keywords Anthophila; Eucerini; bee phylogeny; long-horned bees Introduction The genus Melissodes Latreille (Apidae: Eucerinae sensu Bossert et al. 2019) is a diverse genus of medium sized, setaceous bees. It is the second largest genus in the tribe Eu- cerini with 129 described species ranging from Canada to Argentina.
    [Show full text]
  • Insect Egg Size and Shape Evolve with Ecology but Not Developmental Rate Samuel H
    ARTICLE https://doi.org/10.1038/s41586-019-1302-4 Insect egg size and shape evolve with ecology but not developmental rate Samuel H. Church1,4*, Seth Donoughe1,3,4, Bruno A. S. de Medeiros1 & Cassandra G. Extavour1,2* Over the course of evolution, organism size has diversified markedly. Changes in size are thought to have occurred because of developmental, morphological and/or ecological pressures. To perform phylogenetic tests of the potential effects of these pressures, here we generated a dataset of more than ten thousand descriptions of insect eggs, and combined these with genetic and life-history datasets. We show that, across eight orders of magnitude of variation in egg volume, the relationship between size and shape itself evolves, such that previously predicted global patterns of scaling do not adequately explain the diversity in egg shapes. We show that egg size is not correlated with developmental rate and that, for many insects, egg size is not correlated with adult body size. Instead, we find that the evolution of parasitoidism and aquatic oviposition help to explain the diversification in the size and shape of insect eggs. Our study suggests that where eggs are laid, rather than universal allometric constants, underlies the evolution of insect egg size and shape. Size is a fundamental factor in many biological processes. The size of an 526 families and every currently described extant hexapod order24 organism may affect interactions both with other organisms and with (Fig. 1a and Supplementary Fig. 1). We combined this dataset with the environment1,2, it scales with features of morphology and physi- backbone hexapod phylogenies25,26 that we enriched to include taxa ology3, and larger animals often have higher fitness4.
    [Show full text]
  • Redalyc. Recurso Polínico Y Ciclo Estacional De Thygater Aethiops
    Revista de Biología Tropical ISSN: 0034-7744 [email protected] Universidad de Costa Rica Costa Rica Pinilla-Gallego, Mario Simón; Nieto Fernández, Valentina; Nates-Parra, Guiomar Recurso polínico y ciclo estacional de Thygater aethiops (Hymenoptera: Apidae) en un ambiente urbano (Bogotá-Colombia) Revista de Biología Tropical, vol. 64, núm. 3, septiembre, 2016, pp. 1247-1257 Universidad de Costa Rica San Pedro de Montes de Oca, Costa Rica Available in: http://www.redalyc.org/articulo.oa?id=44946472026 Abstract Thygater aethiops is a native bee that can be found in parks and gardens in diverse urban areas such as those in the city of Bogotá (Colombia). However, little is known about its biol - ogy as well as ecological adaptations to urban areas. This study aimed to describe the seasonal cycle and daily foraging activities of T. aethiops, as well as identify the pollen resources used by this bee over a year in a population nesting in an aggregation in the “Parque Nacional Enrique Olaya Herrera” in Bogotá. Changes in the nest activity were monitored weekly by counting the number of active nests in the aggregation between December/2012 and February/2014. To determine the daily foraging activity, the numbers of bees entering their nests over a period of 10 minutes every hour between 8:00 and 14:00 h were recorded. Females with pollen loads entering to their nest were captured weekly, between September/2012 and August/2013, and their pollen loads analyzed. Three nesting peaks occurred after the precipitation peaks, but the number of active nests was not correlated with precipitation.
    [Show full text]
  • Bee Community and Trophic Resources in Joinville, Santa Catarina
    View metadata, citation and similar papers at core.ac.uk brought to you by CORE provided by Portal de Periódicos da UNIVILLE (Universidade da Região de Joinville) Acta Biológica Catarinense 2017 Jan-Jun;4(1):29-41 Bee community and trophic resources in Joinville, Santa Catarina Comunidade de abelhas e recursos tróficos em Joinville, Santa Catarina Bruna Tereza POSSAMAI1; Enderlei DEC1 & Denise Monique Dubet da Silva MOUGA1, 2 ABSTRACT Recebido: 16 dez. 2016 Aiming to verify the relationships between native bees and floral resources in an urban Aceito: 17 abr. 2017 area, their interactions were observed in Joinville, state of Santa Catarina, southern Brazil. Observations were established, lasting 8 hours daily, during different periods from 2009 to 2015. Bees and plants, after preparation, were identified and registered in a database. We sampled 3,073 bees, all of which 1042 were wild native species. The collected bees are included in 34 species and 44 morphospecies (Halictinae-35, Megachilinae-17, Apinae non corbiculate-15, Apinae corbiculate- 10, Andreninae-1). With the exception of Apis mellifera, the most abundant bee taxa sampled were Trigona spinipes (330 individuals), Xylocopa brasilianorum (92) and Pseudaugochlora graminea (92). Euglossini females and species poorly sampled in inventories such as Leiopodus lacertinus, Thygater (Thygater) armandoi, Anthodioctes megachiloides and Coelioxys aculeaticeps were captured. The bees were sampled over 83 botanical species of 38 families. The most visited botanical families were Lamiaceae and Asteraceae. The richness of the studied area is lower than those of other nearby compared places, indicating probably a decrease of the apifauna. The found diversity previews the place as a possible refuge.
    [Show full text]
  • A New Genus of Eucerine Bees Endemic to Southwestern North America Revealed in Phylogenetic Analyses of the Eucera Complex (Hymenoptera: Apidae: Eucerini)
    76 (2): 215 – 234 18.7.2018 © Senckenberg Gesellschaft für Naturforschung, 2018. A new genus of eucerine bees endemic to southwestern North America revealed in phylogenetic analyses of the Eucera complex (Hymenoptera: Apidae: Eucerini) Achik Dorchin *, 1, 2, Bryan Nicolas Danforth 1 & Terry Griswold 2 1 Department of Entomology, Cornell University, Ithaca, NY 14853, USA; Achik Dorchin * [[email protected]]; Bryan Nicolas Dan- forth [[email protected]] — 2 USDA-ARS, Pollinating Insects Research Unit, Utah State University, Logan, UT 84322, USA; Terry Griswold [[email protected]] — * Corresponding author Accepted 17.iii.2018. Published online at www.senckenberg.de/arthropod-systematics on 29.vi.2018. Editors in charge: Bradley Sinclair & Klaus-Dieter Klass Abstract. The Eucera complex (Apidae: Eucerini), which traditionally included the genus Eucera and a few other related genera comprises a large complex in which generic boundaries have long remained unsettled. Based on comprehensive phylogenetic analyses, a recent study completely reorganized the generic classifcation of the group. Unexpectedly, both morphological and molecular analyses indicated that the taxon known as the venusta-group of the Eucera subgenus Synhalonia is in fact an isolated early diverging lineage, distantly related to Synhalonia. The only three species currently known in the venusta-group are endemic to arid and semi-arid habitats of the southwestern USA and Baja California in Mexico, and are relatively rare in entomological collections. Here we recognize a new genus: Protohalonia Dorchin gen.n., compare its morphology with related genera, and present a revision and identifcation keys for the three species included. We reexamine the phylogenetic position of the new genus based on our previously published molecular and morphological datasets, which we supplement with data for the remaining Protohalonia species.
    [Show full text]
  • 1 Xii-30-2013 Jerome G. Rozen
    1 XII-30-2013 JEROME G. ROZEN, JR. Rozen, Jr., J.G. 1951. A preliminary comparative study of the male genitalia of Andrenidae (Hymenoptera, Apoidea). Journal of the Kansas Entomological Society 24: 142–150. Rozen, Jr., J.G. 1952. Collecting brachycistidine females. Pan-Pacific Entomologist 23: 91–92. Rozen, Jr., J.G. 1952. A new species of Nomadopsis (Hymenoptera, Andrenidae). Journal of the Kansas Entomological Society 25: 144–147. Rozen, Jr., J.G. 1954. Morphological description of the larva of Oreopasites vanduzeei Cockerell (Hymenoptera: Anthophoridae). Pan-Pacific Entomologist 30: 203–207. Rozen, Jr., J.G., and C.D. MacNeill. 1957. Biological observations on Exomalopsis (Anthophorula) chionura Cockerell, including a comparison of the biology of Exomalopsis with that of other anthophorid groups. Annals of the Entomological Society of America 50: 522–529. Rozen, Jr., J.G. 1957. External morphological description of the larva of Exomalopsis chionura Cockerell, including a comparison with other anthophorids (Hymenoptera: Apoidea). Annals of the Entomological Society of America 50: 469–475. Rozen, Jr., J.G. 1958. Biological notes on Eucrada humeralis (Melsheimer) (Anobiidae). Coleopterist Bulletin 11: 53–54. Rozen, Jr., J.G. 1958. The external anatomy of the larva of Nacerdes melanura (Linnaeus) (Coleoptera: Oedemeridae). Annals of the Entomological Society of America 51: 222–229. Rozen, Jr., J.G. 1958. Monographic study of the genus Nomadopsis Ashmead (Hymenoptera: Andrenidae). University of California Publications in Entomology 15: 1–202. Sailer, R.I., and J.G. Rozen, Jr. 1958. A study of the comparative effects of various dosages of Malathion, Methoxychlor, and DDT on the arthropod fauna of a Connecticut forest.
    [Show full text]
  • Nest Structure, Seasonality, and Host Plants of Thygater Aethiops (Hymenoptera: Apidae, Eucerini) in the Andes
    J. HYM.RES. Vol. 17(1), 2008, pp. 110-115 Nest Structure, Seasonality, and Host Plants of Thygater aethiops (Hymenoptera: Apidae, Eucerini) in the Andes (VHG) Department of Ecology and Evolutionary Biology, Haworth Hall, 1200 Sunnyside Avenue, University of Kansas, Lawrence, Kansas 66045-7523, USA; email: [email protected] (MO) Instituto de Investigacidn de Recursos Bioldgicos Alexander von Humboldt, Villa de Leyva, Boyacii, Colombia; email: [email protected] Abstract.-Thygatw is a Neotropical genus of 30 species of solitary bees occurring from Mexico to Argentina. Information on the nesting biology is only available for a single species, T. analis, from southern Brazil. We studied the nest architecture, seasonality, and host plants of T. aethiops in two localities in the Eastern Andes of Colombia (- 2700-2900 m). Bees nested singly or forming aggregations in flat ground or sloping surfaces. Nests were deep (39-59 cm) and consisted of an unlined but smooth long main tunnel meandering downward from the surface. Nests had three to seven nearly vertical cells, which were located singly at the ends of short vertical tunnels that descended from the main tunnel. The older brood was located closer to the nest entrance, indicating a progressive nest development. Monthly sampling and appraisal of museum specimens showed that, although females were more commonly collected than males, both sexes were present year- round. We present a list of 32 plant species (27 genera in 18 families), including exotic, native, and cultivated plants used by T. aethiops in Colombia. The most noticeable differences from T. analis are in the pattern of nest development and seasonality.
    [Show full text]
  • The Aculeate Hymenoptera of Trinidad, West Indies
    THE ACULEATE HYMENOPTERA OF TRINIDAD, WEST INDIES Christopher K. Starr1 and Allan W. Hook2 1.Dep't of Life Sciences, University of the West Indies, St Augustine, Trinidad & Tobago; [email protected] 2.Dep't of Biology, St Edward's University, Austin, Texas 78704, USA; [email protected] Stinger of Synoeca surinama in left side view. This large, blue-black social wasp has a reputation for aggressiveness and painful stinging. The sting lancets are heavily barbed at the tips, allowing the stinger to remain achored in vertebrate skin, sometimes so durably that the wasp cannot withdraw it. F = furcula. L = sting lancet. OP = oblong plate. QP = quadrate plate. S = sting shaft. SP = spiracular plate. Scale bar = 1 mm. Drawing by C.K. Starr. Trinidad is a continental island of about 4800 km2 off the northern coast of South America. Together with Tobago (about 300 km2) and some associated very small islands, it forms the national territory of Trinidad & Tobago, home to about 1.3 million people. Biotically, the two islands are set apart from the oceanic Lesser and Greater Antilles to the north, having a greater affinity to northern South America (Starr, in press). The climate and seasonality of Trinidad & Tobago are typical of the humid tropics north of the Equator. Topography is slight, with no hill reaching 1000 m, and the predominant native vegetation is rain forest (Beard 1946). The biotic inventorying of these islands is very uneven, with a strong bias toward taxa that are well known worldwide. The ongoing Flora of Trinidad & Tobago project, initiated in 1928, has now covered most of the vascular plants.
    [Show full text]