This tribe of insects, to which the name _Thysanoptera_ is sometimes
applied, contains many curious forms.
There are two principal groups of these insects--namely, the
_Tuberlifera_ and the _Terebrantia_. They are generally known to
gardeners by the name of "Thrips." Some of them occasionally prove
injurious to cultivated plants. This is especially the case with the
Corn Thrips (_Thrips cerealium_), which generally attacks the ears of
corn, and, when numerous, is very mischievous.