Grylloblattidan insects from Sperbersbach and Cabarz (Germany), two new early Permian and insect-rich localities

New fossil insect specimens from two new localities in Germany, namely
Sperbersbach and Cabarz (Goldlauter Formation; early Permian), belonging
to the Grylloblattida, are described. Abundant material is assigned to
Pictoborella clara n. gen. n. sp., regarded as closely related to
Pictoborella germanica (Prokop et al., 2012) n. comb., from the Saar-Nahe
Basin (Germany; early Permian). Liomopterum fuscatum n. sp., represented
by fewer specimens, is delimited based on previously published and new
data on various Liomopterum spp. Two other Liomopteridae, Uralioma
thuringiensis n. sp. and Liomopterites sperbersbachensis n. sp., each
known from a single forewing, are also described. Finally, Cabarzopterum
magnificus n. gen. n. sp., with unclear familial affinities, is described
based on three forewings. The assemblages of grylloblattidan insects at
Sperbersbach and Cabarz are generally similar, with differences probably
related to different depositional environments and local paleoclimatic
conditions.