Gasteruptiidae (Hymenoptera, Evanioidea) of three savannah phytophysiognomies of the Estação Ecológica do Jataí, in southeastern Brazil, under three sampling methods and a new record for Gasteruption helenae Macedo, 2011

Abstract

In this study, the Gasteruptiidae species found at the Estação Ecológica de Jataí (EEJ), in Luiz Antonio, São Paulo, Brazil, were documented, based on a survey carried out with Malaise, Moericke and light traps that lasted for three years, between January 2007 and December 2009. During the samplings at EEJ, 13 female specimens of Gasteruption Latreille, 1796 were captured: six of G. bispinosum Kieffer, 1904, six of G. brasiliense (Blanchard, 1840) and a single specimen of G. helenae Macedo, 2011 that is the fi rst record for São Paulo state.

New species records of Gasteruptiidae (Hymenoptera, Evanioidea) from Eastern Uruguay

“…This effort was 6.85 times smaller than that obtained by Perioto et al (2020) that, in a similar study carried out in a conservation area of Brazilian savannah located in the state of São Paulo, Brazil, also employed a great effort of sampling (6,570 trap-days) to capture parasitoid Hymenoptera with Malaise traps and obtained four specimens of G. bispinosum Kieffer, 1904, two of G. brasiliense (Blanchard, 1840 and a single specimen of G. helenae Macedo, 2011, totaling only seven specimens.…”

“…As discussed in Perioto et al (2020), that studied the gasteruptiids of an area of Brazilian savannah in Brazil, the small number of specimens collected precludes more sophisticated analyzes of abundance and population fluctuation. The reasons that lead to this small catch rate are unknown and factors such as their development in small populations, placement (including orientation) and/or the low efficiency of the traps used should be taken into account.…”

“…The knowledge about the hosts of the Neotropical Gasteruptiidae was summarized by Perioto et al (2020).…”

Including fossils in phylogeny: a glimpse into the evolution of the superfamily Evanioidea (Hymenoptera: Apocrita) under tip-dating and the fossilized birth–death process

“…Deyrup, 1984;Gauld & Hanson, 1995;Jennings & Austin, 2004;Kuroda et al, 2020). Adults of gasteruptiids apparently feed on nectar and pollen (Jennings & Austin, 2004), while their larvae are predator-inquiline, feeding on larvae or larval food of solitary bees (Antophila of the families Apidae, Colletidae, Halictidae, Megachilidae, and Stenotritidae) and of more inclusive apoid wasps (Crabronidae) (Malyshev, 1968;Jennings & Austin, 2004;Bogusch et al, 2018;Perioto et al, 2020;Parslow et al, 2020b).…”