September 2010.
Literature:
(Look also at the page Systematic list of fossil beetles of Scarabaeina (Part 2)
Kirejtshuk A.G., Chang H., Ren D. & Chung Kun S. 2010. Family Lasiosynidae n. fam., new palaeoendemic Mesozoic family from the infraorder Elateriformia (Coleoptera: Polyphaga). Annales de la Societe entomologique de France, 2010, 46 (1-2): 67-87.
Kirejtshuk A.G., Ponomarenko A.G., Prokin A.A., Chang H., Nikolajev G.V., Ren D. 2010. Current knowledge on Mesozoic Coleoptera from Daohugou and Liaoning (North East China). Acta Geologica Sinica. 84, 4: 783-792.