Viktor Baranov and Evgeny E. Perkovsky

Non-biting midges (Diptera: Chironomidae) are recorded in the Sakhalinian amber (Russia) for the first time. Pseudorthocladius zherikhini sp. n. is described in an extant genus of Orthocladiinae also known from the Baltic amber. Antillocladus sp. (Orthocladiinae) is the first representative of this genus recorded from fossil resins.

Viktor Baranov, Trond Andersen and Evgeny E. Perkovsky

Four Middle Eocene orthoclad species, Heterotrissocladius naibuchi sp. n., Paraphaenocladius nadezhdae sp. n., Pseudosmittia kodrulae sp. n. and Smittia sukachevae sp. n.. are described and figured. Based on the combination of the diptera fauna composition and paleobotanical data, suggestions on the climate and habitats of the Sakhalin amber forest are given.