Ommatidae References Ommatidae insect family Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: Coleoptera/ Annotated classification Family Ommatidae 2 extant genera (Omma and Tetraphalerus), containing 6 species. Suborder Myxophaga Wing with base of Rs vein absent; prothorax usually with distinct notopleural suture. Family Hydroscaphidae ( Read More Family Ommatidae 2 extant genera (Omma and Tetraphalerus), containing 6 species. Suborder Myxophaga Wing with base of Rs vein absent; prothorax usually with distinct notopleural suture. Family Hydroscaphidae ( Read More