Activity cycle of the pollen wasp, Trimeria howardi (Hymenoptera: Vespidae) in Southeastern Brasil

Among the wasps, the Masarínae are a peculiar subfamily. It is the only group of wasps Ihat provisions brood cells with pollen and nectar. The studied species Trimeria howardi Bertoni, 1911, was until recentIy abundant in Ribeirao Preto, Sao Paulo, southeastern Brazil. This paper deaIs with plant sp...

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Main Author:	Mechi, María Rita
Format:	Online
Language:	eng
Published:	Universidad de Costa Rica 1999
Online Access:	https://revistas.ucr.ac.cr/index.php/rbt/article/view/19299

id	RBT19299
record_format	ojs
spelling	RBT192992022-05-25T21:20:20Z Activity cycle of the pollen wasp, Trimeria howardi (Hymenoptera: Vespidae) in Southeastern Brasil Activity cycle of the pollen wasp, Trimeria howardi (Hymenoptera: Vespidae) in Southeastern Brasil Mechi, María Rita hymenoptera vespidae trimeria howardi phenology annual cycle asteraceae leguminosae Among the wasps, the Masarínae are a peculiar subfamily. It is the only group of wasps Ihat provisions brood cells with pollen and nectar. The studied species Trimeria howardi Bertoni, 1911, was until recentIy abundant in Ribeirao Preto, Sao Paulo, southeastern Brazil. This paper deaIs with plant species visited by T. howardi, in relation to the species' annuaI cycle of activity, based on periods of nest foundation, flight activity, and development stages of immatures present in the cells. During the study period (five years) T. howardi visited four species of plants in two botanical families: Bidens pilosa L.(Asteraceae); Xanthium spinosum L. (Asteraceae); Stylosanthes guianensis (Aulb). Sw. (Leguminosae), and Zornia diphylla (L.) Pers. (Leguminosae). Based on the number of visited families, T. howardi can be considered a narrow polylectic species. In general, the species annual activity cycle consists of three phases: Active phase: January to July; Inactive phase: August - September; Active phase: October to December. The annuaI cyc1e is bivoltine or multivoltine and the diapause is facultative, because it occurs in a single generation during the year. Among the wasps, the Masarínae are a peculiar subfamily. It is the only group of wasps Ihat provisions brood cells with pollen and nectar. The studied species Trimeria howardi Bertoni, 1911, was until recentIy abundant in Ribeirao Preto, Sao Paulo, southeastern Brazil. This paper deaIs with plant species visited by T. howardi, in relation to the species' annuaI cycle of activity, based on periods of nest foundation, flight activity, and development stages of immatures present in the cells. During the study period (five years) T. howardi visited four species of plants in two botanical families: Bidens pilosa L.(Asteraceae); Xanthium spinosum L. (Asteraceae); Stylosanthes guianensis (Aulb). Sw. (Leguminosae), and Zornia diphylla (L.) Pers. (Leguminosae). Based on the number of visited families, T. howardi can be considered a narrow polylectic species. In general, the species annual activity cycle consists of three phases: Active phase: January to July; Inactive phase: August - September; Active phase: October to December. The annuaI cyc1e is bivoltine or multivoltine and the diapause is facultative, because it occurs in a single generation during the year. Universidad de Costa Rica 1999-12-01 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Article application/pdf https://revistas.ucr.ac.cr/index.php/rbt/article/view/19299 10.15517/rbt.v47i4.19299 Revista de Biología Tropical; Vol. 47 No. 4 (1999): Volume 47 – Regular number 4 – December 1999; 939–948 Revista de Biología Tropical; Vol. 47 Núm. 4 (1999): Volumen 47 – Volumen regular 4 – Diciembre 1999; 939–948 Revista Biología Tropical; Vol. 47 N.º 4 (1999): Volume 47 – Regular number 4 – December 1999; 939–948 2215-2075 0034-7744 10.15517/rbt.v47i4 eng https://revistas.ucr.ac.cr/index.php/rbt/article/view/19299/19346 Copyright (c) 1999 Revista de Biología Tropical http://creativecommons.org/licenses/by/4.0
institution	Universidad de Costa Rica
collection	Revista de Biología Tropical
language	eng
format	Online
author	Mechi, María Rita
spellingShingle	Mechi, María Rita Activity cycle of the pollen wasp, Trimeria howardi (Hymenoptera: Vespidae) in Southeastern Brasil
author_facet	Mechi, María Rita
author_sort	Mechi, María Rita
description	Among the wasps, the Masarínae are a peculiar subfamily. It is the only group of wasps Ihat provisions brood cells with pollen and nectar. The studied species Trimeria howardi Bertoni, 1911, was until recentIy abundant in Ribeirao Preto, Sao Paulo, southeastern Brazil. This paper deaIs with plant species visited by T. howardi, in relation to the species' annuaI cycle of activity, based on periods of nest foundation, flight activity, and development stages of immatures present in the cells. During the study period (five years) T. howardi visited four species of plants in two botanical families: Bidens pilosa L.(Asteraceae); Xanthium spinosum L. (Asteraceae); Stylosanthes guianensis (Aulb). Sw. (Leguminosae), and Zornia diphylla (L.) Pers. (Leguminosae). Based on the number of visited families, T. howardi can be considered a narrow polylectic species. In general, the species annual activity cycle consists of three phases: Active phase: January to July; Inactive phase: August - September; Active phase: October to December. The annuaI cyc1e is bivoltine or multivoltine and the diapause is facultative, because it occurs in a single generation during the year.
title	Activity cycle of the pollen wasp, Trimeria howardi (Hymenoptera: Vespidae) in Southeastern Brasil
title_short	Activity cycle of the pollen wasp, Trimeria howardi (Hymenoptera: Vespidae) in Southeastern Brasil
title_full	Activity cycle of the pollen wasp, Trimeria howardi (Hymenoptera: Vespidae) in Southeastern Brasil
title_fullStr	Activity cycle of the pollen wasp, Trimeria howardi (Hymenoptera: Vespidae) in Southeastern Brasil
title_full_unstemmed	Activity cycle of the pollen wasp, Trimeria howardi (Hymenoptera: Vespidae) in Southeastern Brasil
title_sort	activity cycle of the pollen wasp, trimeria howardi (hymenoptera: vespidae) in southeastern brasil
title_alt	Activity cycle of the pollen wasp, Trimeria howardi (Hymenoptera: Vespidae) in Southeastern Brasil
publisher	Universidad de Costa Rica
publishDate	1999
url	https://revistas.ucr.ac.cr/index.php/rbt/article/view/19299
work_keys_str_mv	AT mechimariarita activitycycleofthepollenwasptrimeriahowardihymenopteravespidaeinsoutheasternbrasil
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Activity cycle of the pollen wasp, Trimeria howardi (Hymenoptera: Vespidae) in Southeastern Brasil

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