| 释义 |
si·al·i·dae
\sīˈaləˌdē\ noun plural
Usage: capitalized
Etymology: New Latin, from Sialis, type genus + -idae
: a family of usually large insects (order Megaloptera) including the hellgrammite, alderflies, and related forms and having the hind wings broad at the base with their anal angle folding in plaits |