Resurrection of DC. and synonymization of Harms, Killip, M. Bonilla, C. Aguirre & Caetano (Passifloraceae) following a study of their morphology and ecogeography.

Within the very uniform series , (treated as a synonym of in the ), , and appear particularly similar. A review of their descriptions and the associated specimens confirms their lack of morphological differentiation and leads us to formally resurrect and place the three other taxa under its synonymy. This taxonomic move is also supported by a revision of 72 additional geolocalized specimens (for a grand total of 78) and an analysis of their distribution and habitats.

Description of three new species of Hübner, 1819 from Colombia and Brazil (Lepidoptera, Saturniidae, Hemileucinae).

The Saturniidae is one of the most emblematic families of moths, comprising nearly 3000 species distributed globally. In this study, DNA barcode analysis and comparative morphology were combined to describe three new species within the genus , which is the most diverse genus in the family. Decaëns, Rougerie & Bonilla, , Decaëns, Rougerie & Bonilla, , and Decaëns, Rougerie & Bénéluz, are described from the Colombian Orinoco watershed, the Colombian Eastern Cordillera, and the area of endemism of Belém in the Brazilian Amazonia, respectively.

Three new species of (Annonaceae) from coastal East Africa in Kenya and Tanzania.

East Africa is a hotspot of biodiversity with many endemic plant species. We describe three new species of the genus (Annonaceae) from the coastal forests of Kenya and Tanzania. Dagallier & Couvreur, is endemic to Tanzania and unique within the genus by its strong bergamot scent and its tomentose fruits having regular tufts of higher hair density.

and its parasitoid (Hymenoptera, Eurytomidae): two new species associated with medusahead, (Poaceae).

Medusahead, (Poales: Poaceae), is an annual grass native to central Asia and the Mediterranean region. It is a noxious, invasive weed in much of western North America. During field explorations carried out in Greece in 2017, the new phytophagous eurytomid Lotfalizadeh, and its parasitoid Lotfalizadeh, , also new to science, were recorded for the first time on medusahead.

Two new species of (Palmae/Arecaceae) from Cameroon and Gabon.

(Arecaceae, Calamoideae) is the most diverse genus of African palms with around 20 species. Two new species from Cameroon and Gabon, Mogue, Sonké & Couvreur, and Mogue, Sonké & Couvreur, are described and illustrated. Their affinities are discussed and the conservation status of each species is assessed.