Aspectos da biologia de nidificação de Euplusia mussitans (Fabricius) (Hymenoptera, Apidae, Euglossini)

Abstract

ABSTRACT. Aspects of nesting biology of Euplusia mussitans Fabricius (Hymenoptcra, Apidac, Euglossini). The architeeture and biology of Euplusw mussitans (Fabricius, 1787) nests were investigated, using trap nests made by wood, whieh were randomly distributed in a fragment of a coastal sand dunes, in Salvador, Bahia, Brazil (12°56'S and 38"2I 'W). 10 nests were found in eavities with 1.5 em in diameter. From them emerged 10 females and 16 males (Sex ratio = 0,38). The nest eells were made of small pieces of bark cemented together with resin . The number of cells in the nests varied from 2 to 4, with females cells at the inner end and males cells towards the entrance. No signifieant differenee was observed (t= 0.7274, P > 0.05) between the medium size for males (6.3 mm ± 0.16) and for females (6.4 mm ± 0.29). The development time of females was longer than males.

Abelhas Euglossina (Hymenoptera: Apidae) em área de restinga do nordeste do Maranhão

“…Alguns autores também mostraram que espécies de Eufriesea apresentam atividade restrita ao período chuvoso (Roubik & Ackerman 1987, Wittman et al 1988, Rebêlo & Garófalo 1991, o que pode estar relacionado à diapausa prepupal, sendo as mesmas univoltinas (Peruquetti & Campos 1997, Viana et al 2001.…”

Spatial–Temporal Variation in Orchid Bee Communities (Hymenoptera: Apidae) in Remnants of Arboreal Caatinga in the Chapada Diamantina Region, State of Bahia, Brazil

“…The activity of species of the genus Eufriesea tends to be restricted to the rainy season, which may be related to the prepupal diapause in these univoltine species (Peruquetti & Campos 1997, Viana et al 2001. Precipitation is one of the principal factors influencing seasonal variation in activity patterns.…”

Nests of Eufriesea aff. auriceps (Hymenoptera, Apidae, Euglossini) in remnants of Atlantic Forest and reforested areas

“…18 mm (Nemésio, 2009) and can be considered a large sized bee, a condition that could explain the preferential use of bamboo canes with widths between 1.5 and 2.0 cm and lengths, mostly, above 13.0 cm, both in our study and in that of Garófalo et al (1993). In fact, in the few studies involving Eufriesea in which measures of brood cells were taken, the internal widths and lengths of the cells usually remained above 1.0 cm and 1.5 cm, respectively (Garófalo et al, 1993;Viana et al, 2001). Only for Eufriesea violacea (Blanchard), the internal contour of cells did not reach 1.0 cm (Sakagami & Michener, 1965).…”

“…In the last three decades, information on euglossine females has been obtained mostly though the trap-nest technique (Garófalo et al, 1993(Garófalo et al, , 1998Augusto & Garófalo, 2004), which is useful for collecting biological data on solitary bees nesting in preexisting cavities (Garófalo et al, 2004). Since female orchid bees rarely excavate their nests (Solano-Brenes et al, 2018) and several species build their nests in preexisting cavities in nature or even in human buildings (Ramírez et al, 2002), the use of trap-nests for euglossine studies has provided, for instance, information on nesting biology of different species (Garófalo et al, 1993(Garófalo et al, , 1998Viana et al, 2001;Augusto & Garófalo, 2004). In fact, the use of trap-nests can be more effective than searching for euglossine nests in the field (Garófalo et al, 1993).…”