The use of egg characters for the classification of Notodontidae (Lepidoptera), with keys to the common Palaearctic genera and species Author Dolinskaya, Irina V. text Zootaxa 2019 2019-05-14 4604 2 201 241 journal article 26838 10.11646/zootaxa.4604.2.1 2844b319-2329-4c41-9513-dec46d91dc35 1175-5326 2806578 E44A745B-31C1-4000-A27E-081674F24568 Clostera 1 Sculpture formed by aeropyles ( Figs. 27, 28 )...................................................................................2 - Sculpture formed by cells ( Figs. 80, 81 )........................................................................................ 3 2 Aeropyles bordered by large roller-like edges ( Fig. 27 ). Fresh egg crimson-grey, becoming crimson-black during development............................................................................ C. albosigma curtuloides (From South Ural Region to Far East Russia ( Amur , Primorye, Sahalin , Kuril Islands), Korea , Japan , China ) - Aeropyles without roller-like edges ( Fig. 28 ). Fresh egg greenish-grey, becoming dark-raspberry with 2 grey arcuate stripes during development ( Figs. 82, 83 ). Before caterpillar emergence egg becomes dark-grey.................. C. anastomosis (From Europe to Japan , China ) 3 Sculpture with poorly expressed cells. Egg green, becoming blue-green ( Fig. 84 )......................................... .. C. curtula - Sculpture with prominent cells. Egg coloration variable.......................................................................... 4 4 Egg greenish-grey becoming pinkish-red during development ( Fig. 85 ).............................................. C. pigra - Egg with black and grey arcuate bands ( Fig. 86 ), becoming dark grey during development................. C. anachoreta