Three new species of Tanytarsus van der Wulp (Diptera: Chironomidae) from the Amazon rainforest.

In the present study, three new species of Tanytarsus, collected in Brazilian Amazonia, are described and illustrated as adult males: T. pollicis sp. nov., T. marianae sp. nov. and T. rafaeli sp. nov. Tanytarsus pollicis is placed in kiche species group due to its bilobed superior volsella. Tanytarsus marianae and T. rafaeli are not placed in any known species group, and although these two new species share characters that suggest they may be closely related, we do not propose that they form a new species group for Tanytarsus without prior phylogenetic analysis.

Two new species of Tanytarsus van der Wulp (Diptera: Chironomidae) from Costa Rica.

Tanytarsus is a highly diverse genus of Chironomidae (Diptera), distributed worldwide. In the Neotropics, 84 species are known, but only five have been recorded from Central America to date. In the present article, two new species of the Tanytarsus ortoni species group are described and illustrated based on male specimens collected from Costa Rica, T. braini sp. nov. and T. costarica sp. nov.