An article in the April number of the Canadian Entomologist leads me to offer a few remarks on this subject. The custom of forming new generic names by attaching a prefix or suffix to the existing name of a related genus has grown to serious proportions in recent years. There are several reasons why it should be discountenanced. For one thing,it almost invariably makes the name too long to look or sound well. This is no trifling disadvantage, although some entomologists seem not to appreciate the fact.