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Inka minuta gen. et sp. n. described on the basis of six alate males from the Taymyrian Upper Cretaceous amber (Santonian, ca. 85-87 mill, years) is similar to the extant Eriococcidae with which it shares the structure of head, antennae, legs, external genitalia, but differs in the presence of a central membraneous area of scutum, characteristic of the Kermesidae, Coccidae etc. The remarkable long microtrichia on wings are unique among the scale insects. This, combined with other features, justified the erection of the family Inkaidae. The Mesozoic scale insect fossils are reviewed and briefly discussed.
Alate males of Eomatsucoccus suhachevae and E. popovi gen. et sp. n. from Siberian Lower Cretaceous (Neocomian) deposits are described on the basis of four impressions. From the relatively well preserved specimens it appears that the Matsucoccidae reached their contemporary organization level already 130 mil. years ago. Eomatsucoccus is the oldest fossil that can ben included to scale insects without any doubt, which indicates that coccids must have radiated into the main groups at least in the Jurassic.
Seven species assigned to Kiritshenkella Boechsenius, 1948, and seven in Balanococcus Williams, 1960, are revised on the basis of literature data; a key to all species and brief descriptions are provided. Kiritshenkella seems to be a heterogenic assemblage, and species assigned to Balanococcus might be placed in Kiritshenkella, as well. A new species found in Roztocze (S-E Poland) — Kiritshenkella lianae — living in leaf sheaths of Carex, and showing some morphological similarities to K. fushanensis and B. scirpi, is described and illustrated.
Faunistic investigations carried out in the Roztocze (south-eastern Poland) in 1986-1990 revealed the occurrence of 88 species of scale insects, including 20 previously known, 63 new to the region, four new for fauna of Poland and one new for the science. This number constitutes 64% of the Polish fauna, thus the Roztocze belongs, beside the Wyżyna Krakowsko-Częstochowska (Kraków- Częstochowa Upland) and Góry Świętokrzyskie (Świętokrzyskie Mts), to the best studied in Poland. In addition to faunistic data some biological, ecological and zoogeographical aspects are discussed.
The description of Newsteadia succini sp. n. is based on an adult female that carries an ovisac with eggs and new-born larvae. It has 4-segmented antennae and is about 1 mm long (without ovisac); the tibio-tarsal joint is indicated by a clear constriction. The new species shows some morphological similarities with N. minima Morrison, N. tristani Silvestri and N. myersi Green.
Adult female of Arctorthezia antiqua sp. n. from Baltic amber (Samland) is described and illustrated. Although microscopic features of integument are not available for examination, the species is clearly distinct from the four recent species, but shares some characters with A. cataphracta (Olafsen). The status of Ochyrocoris electrina Menge is also discussed in the paper.
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