title: A new family of aphids (Hemiptera, Sternorrhyncha) from the Lower Cretaceous of Baissa, Transbaikalia.
abstract: The family Rasnitsynaphididaefam. n. has a unique combination of characters: 9-segmented antennae; rhinaria arranged in many transverse rows, surrounding the antennal segments; segment IX narrower than other segments of flagellum, always without rhinaria; cubitus branches separated; ovipositor present; siphuncular pores absent. The new family comprises the genus Rasnitsynaphisgen. n. with three species, Rasnitsynaphis ennearticulatasp. n., Rasnitsynaphis coniunctasp. n., and Rasnitsynaphis quadratasp. n., all from the Lower Cretaceous of Transbaikalia.
authors.affiliation: Department of Zoology, University of Silesia, Bankowa 9, 40-007 Katowice, Poland.
authors.forename: Agnieszka
authors.initials: A
authors.lastname: Homan
authors.forename: Piotr
authors.initials: P
authors.lastname: Wegierek