Journal of Hymenoptera Research

@jhr.pensoft.net

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An open-access online journal published by @pensoft.net on behalf of the International Society of Hymenopterists. Powered by @arphahub.com. Website: jhr.pensoft.net

A a marked Colletes andrewsi (green-yellow-green) foraging on Heuchera richardsonii (photo by Heather Holm) B a marked Colletes andrewsi (purple-white-green) digging out the entrance of her nest (photo by Heather Holm) C clump 1 of the nesting aggregation – each metal tag marks an individual nest.
Andrena (Euandrena) pileata Warncke, 1975 male.
Piogaster variegata
Close-up photo of a parasitic wasp viewed from the side. The wasp is golden-brown in color with large reddish compound eyes, segmented antennae, and transparent wings folded over its back. A black scale bar indicating "1 mm" provides a size reference against the white background.
Close-up photo of a small parasitic wasp with a body length of approximately 1 mm. The wasp has a yellowish-brown thorax and darker brown abdomen, with transparent, iridescent wings. Its segmented antennae are visible, and it is mounted on a white surface.
Close-up photo of a small parasitic wasp mounted on a white triangular platform. The wasp has a shiny black body with a large, bulbous, and glossy abdomen featuring translucent golden-brown areas. Its wings are transparent with visible venation and are folded over its back. The legs are yellowish-brown, and the antennae are long, segmented, and appear in the inset for detailed view. A scale bar in the lower right corner indicates 250 micrometers.
A collage of four close-up images labeled A to D showing interactions between ants and plant stems.
A high-resolution photo of a tiny parasitic wasp viewed from the side against a light background. The wasp has long, slender antennae, transparent veined wings, a shiny black thorax and abdomen, and a distinctive orange ovipositor extending from the tip of its body. The scale bar in the lower left indicates 1 millimeter.
A colorful graphic promoting World Bee Day. On the left side, a large illustrated bee is centered above two open hands surrounded by various nature and food icons like a leaf, butterfly, bird, onion, pumpkin, passionfruit, watermelon, flowers, and a bat. The background is yellow with honeycomb patterns and black dots. On the right side, the text reads: “20 May World Bee Day” and “BEE INSPIRED by nature to nourish us all” on a light background.
A photo showing a close-up lateral view of a small parasitic wasp specimen. The wasp has a slender, dark body with light brown and yellowish legs. Its antennae are long, segmented, and thread-like, extending forward. The wings are translucent with a noticeable iridescent sheen and distinct venation patterns. The head is small with prominent compound eyes.
A scientific figure showing six close-up photos (labeled A–F) of a very small yellowish wasp against a scale bar indicating 0.25 mm.