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dc.contributor.advisorFranz, Nico M.
dc.contributor.authorGirón-Duque, Jennifer C.
dc.date.accessioned2018-05-16T15:08:29Z
dc.date.available2018-05-16T15:08:29Z
dc.date.issued2010
dc.identifier.urihttps://hdl.handle.net/20.500.11801/481
dc.description.abstractThe Caribbean weevil genus Apodrosus Marshall, 1922 (Coleoptera: Curculionidae: Entiminae: Polydrusini Schoenherr) is revised, including a redescription of A. argentatus Wolcott, 1924 (Dominican Republic, Vieques Island, St. Croix – new records, Bahamas – error, misidentification, and Puerto Rico) and A. wolcotti Marshall, 1922 (Puerto Rico) and description of 11 new species: A. adustus, sp.n. (Bahamas), A. andersoni, sp.n. (Dominican Republic), A. artus, sp.n. (Dominican Republic), A. earinusparsus, sp.n. (Dominican Republic), A. empherefasciatus, sp.n. (Bahamas), A. epipolevatus, sp.n. (Puerto Rico), A. eximius, sp.n. (Dominican Republic), A. mammuthus, sp.n. (Mona Island, Turks and Caicos Islands), A. quisqueyanus, sp.n. (Dominican Republic), A. stenoculus, sp.n. (Dominican Republic), and A. viridium, sp.n. (Dominican Republic). A key to the species and illustrations of external and internal structures are provided. Apodrosus is characterized as a monophyletic group by two unreversed synapomorphies – i.e. the presence of a median fovea on the apex of abdominal sternum VII and a J- or Y-shaped spermatheca – and is furthermore differentiated from related taxa by a unique combination of diagnostic features including the presence of premucro, a complete tegminal plate in males, the absence of longitudinal sclerites in the genital chamber of females, and an apical projection on the spermathecal cornu. A phylogenetic reconstruction of 20 taxa (7 outgroup, 13 ingroup) and 25 morphological characters yielded a single most parsimonious cladogram (L = 61 steps, CI = 42, RI = 74) with the ingroup topology (A. artus, (A. andersoni, (A. earinusparsus, (A. epipolevatus, A. wolcotti)))), (A. eximius, ((A. argentatus, A. mammuthus), (A. viridium, (A. stenoculus, (A. quisqueyanus, (A. adustus, A. empherefasciatus)))))). The phylogeny indicates that Anypotactus bicaudatus Champion (Anypotactini Champion) is the most closely related sister group to Apodrosus, thereby calling into question the traditional tribal placement of this genus in the Polydrusini. The host plant associations of most species remain uncertain.
dc.description.abstractSe revisa el género caribeño de gorgojos Apodrosus Marshall, 1922 (Coleoptera: Curculionidae: Entiminae: Polydrusini Schoenherr), incluyendo una redescripción de A. argentatus Wolcott, 1924 (República Dominicana, Vieques, St. Croix – nuevos registros, Bahamas – error de identificación y Puerto Rico), A. wolcotti Marshall, 1922 (Puerto Rico) y la descripción de 11 especies nuevas: A. adustus, sp.n. (Bahamas), A. andersoni, sp.n. (República Dominicana), A. artus, sp.n. (República Dominicana), A. earinusparsus, sp.n. (República Dominicana), A. empherefasciatus, sp.n. (Bahamas), A. epipolevatus, sp.n. (Puerto Rico), A. eximius, sp.n. (República Dominicana), A. mammuthus, sp.n. (Isla de Mona, Islas Turcas y Caicos), A. quisqueyanus, sp.n. (República Dominicana), A. stenoculus, sp.n. (República Dominicana), y A. viridium, sp.n. (República Dominicana). Se provee una clave de las species e ilustraciones de estructuras externas e internas. Apodrosus se caracteriza como un grupo monofilético por dos sinapomorfías sin reversión – i.e. la presencia de una fóvea media en el ápice del esterno abdominal VII y una espermateca en forma de “J” o “Y” – y es además diferenciado de taxa relacionados por una combinación única de caracteres diagnósticos que incluyen la presencia de premucro, una placa tegminal completa en machos, la ausencia de escleritos longitudinales en la cámara genital de las hembras y una proyección apical del cornu de la espermateca. Una reconstrucción filogenética de 20 taxa (7 outgroup, 13 ingroup) y 25 caracteres morfológicos produjo un solo cloadograma más parsimonioso (L = 61 pasos, CI = 42, RI = 74) con la topología del ingroup (A. artus, (A. andersoni, (A. earinusparsus, (A. epipolevatus, A. wolcotti)))), (A. eximius, ((A. argentatus, A. mammuthus), (A. viridium, (A. stenoculus, (A. quisqueyanus, (A. adustus, A. empherefasciatus)))))). La filogenia indica que Anypotactus bicaudatus Champion (Anypotactini Champion) es el grupo hermano más cercanamente relacionado a Apodrosus, cuestionando así la ubicación tradicional de éste género en la tribu Polydrusini. Las asociaciones con las plantas hospederas para la mayoría de las especies permanecen desconocidas.
dc.description.sponsorshipThe project "Towards a systematic and evolutionary synthesis of the Neotropical Exophthalmus genus complex (Coleoptera: Curculionidae: Entiminae)", funded by the National Science Foundation (DEB-641231) Secretaría de Estado de Medio Ambiente y Recursos Naturales (SEMARENA), Departamento de Recursos Naturales y Ambientales (DRNA),en_US
dc.language.isoenen_US
dc.subjectApodrosus Marshallen_US
dc.subjectCaribbean weevil genusen_US
dc.subject.lcshBeetles--Caribbean Areaen_US
dc.subject.lcshCurculionidae--Caribbean Areaen_US
dc.subject.lcshPhylogeny--Caribbean Areaen_US
dc.titleRevision and phylogeny of the Caribbean genus Apodrosus Marshall, 1922 (Coleoptera: Curculionidae: Entiminae)en_US
dc.typeThesisen_US
dc.rights.licenseAll rights reserveden_US
dc.rights.holder(c) 2010 Jennifer C. Girón-Duqueen_US
dc.contributor.committeeCafaro, Matías
dc.contributor.committeeAcosta, Jaime
dc.contributor.representativeAponte, Nilda E.
thesis.degree.levelM.S.en_US
thesis.degree.disciplineBiologyen_US
dc.contributor.collegeCollege of Arts and Sciences - Sciencesen_US
dc.contributor.departmentDepartment of Biologyen_US
dc.description.graduationYear2010en_US


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