First record of the Sulia glaesaria Simutnik, 2015 (Hymenoptera, Chalcidoidea, Encyrtidae) from Rovno amber

Abstract

Sulia glaesaria Simutnik, 2015 (Chalcidoidea, Encyrtidae), originally described from late Eocene Danish amber, is reported in coeval Rovno amber. A revised diagnosis of this genus is provided based on the new specimen and high-resolution photomicrographs of the holotype. Some character states, such as a short radicle, clypeus with long lateral margins, the presence of a strigil and basitarsal comb, spur vein of the hind wing, costal cell of hind wing along entire marginal vein with single line of long setae, and almost vertical syntergum with abruptly reflexed extension apically are reported in this species for the first time.

First fossil species of ship-timber beetles (Coleoptera, Lymexylidae) from Eocene Rovno amber (Ukraine)

“…Late Eocene Rovno amber from Ukraine is the southern coeval of the famous Baltic amber (Sokoloff et al 2018), and more than 300 arthropod species have already been described from there (Perkovsky 2018;Bukejs et al 2020;Colombo et al 2021aColombo et al , 2021bKhaustov et al 2021a, 2021b andreferences therein). Fewer than 48% of Rovno hymenopteran species (Simutnik et al 2020(Simutnik et al , 2021Colombo et al 2021aColombo et al , 2021bColombo et al , 2021cRadchenko et al 2021, our data), 32% of caddisfly species (Melnitsky et al 2021a(Melnitsky et al , 2021b(Melnitsky et al , 2021c, 24% of Nematocera (Giłka et al 2021), and less than 15% of beetle species (Legalov et al 2021a(Legalov et al , 2021bKirichenko-Babko et al 2021, 2022Kupryjanowicz et al 2021;Lyubarsky and Perkovsky 2021;Telnov et al 2021;Tshernyshev and Perkovsky 2021;Perkovsky et al 2022;this paper) are shared with Baltic amber fauna. Nearly all studied Rovno amber inclusions from the Rovno Region were collected from Klesov and the Horyn River Basin (Perkovsky et al 2010;Perkovsky 2017a;Mitov et al 2021), except new collections from Varash District (former Vladimirets and Zarechnoye Districts) in the Rovno Region and the former Manevichi District in the Volyn Region (Styr, Veselukha, and Stokhod River Basins).…”

Protaphycus shuvalikovi Simutnik gen. et sp. nov. (Chalcidoidea, Encyrtidae, Encyrtinae) from Rovno amber

“…Zhovkini is one of the new localities from Varash District, that yielded dozens new taxa (Colombo et al 2021;Golub et al 2021;Simutnik et al 2021b;Vitali and Perkovsky 2022;Yamamoto et al 2022); Zhovkini inclusions comprise new cicadellids (Dietrich, pers. com.…”

“…The data on fossil Encyrtidae were summarized in Simutnik et al 2014Simutnik et al , 2021aSimutnik et al , 2021bSimutnik et al , 2022Simutnik and Perkovsky 2018;Simutnik 2021. The earlier described Paleogene Encyrtidae demonstrate remarkable morphological differences from extant ones.…”

Two new genera of Encyrtidae (Hymenoptera, Chalcidoidea) with reduced ovipositor sheaths

“…An extremely apical or near apical position of the cerci is very rare among extant encyrtids, but is seen in most extinct ones (Simutnik andPerkovsky 2006, 2018a;Simutnik 2021;Simutnik et al 2021aSimutnik et al , 2021b. Two new fossil encyrtid genera with this character state are described below.…”

“…This brings the number of Rovno amber hymenopteran genera unknown in Baltic amber to 28 of 90, i.e., 31% (our unpublished data). This includes 22 of 52 (42.3%) non-ant hymenopterans genera and 46 of 69 of non-ant species (66.7%) (Perkovsky 2018;Manukyan 2019;Martynova et al 2019;Simutnik et al , 2021bBelokobylskij et al 2021;Colombo et al 2021a, b, c;Manukyan and Zhindarev 2021). Baltic amber species from large arthropod orders and suborders reported from Rovno amber vary from 32.4% for Trichoptera (Perkovsky 2017;Melnitsky et al 2021aMelnitsky et al , 2021bMelnitsky et al , 2021c, 24% for Nematocera (Giłka et al 2021) and 15% for Coleoptera (Telnov et al 2021;Kirichenko-Babko et al 2022;Perkovsky et al 2022); 33% of non-ant hymenopterans common for Baltic and Rovno amber is close to the ratio for caddisflies (Trichoptera), which have been extensively studied (e.g., Melnitsky et al 2021c and references therein).…”