The family Crambidæ is represented by the above-named species, which has the popular title of Pearl-streak Veneer. It is not a common moth, but is to be obtained in some localities by beating low herbage.
Its fore wings are ochreous and glossy, with a silvery streak from the base, running almost parallel with the costal margin. The hind margin is yellow, bordered inside by a wavy brown line. The hind wings are pale greyish brown with a yellowish margin.
Crambus tristellus
The same family contains the species Tristellus, which, unlike the preceding insect, is abundant everywhere.
Its fore wings are generally yellowish brown, but exceedingly variable. A pale streak runs from the base to just beyond the middle of the wing, and is then forked. Near the hind margin is a very indistinct brown wavy line. The hind wings are dull smoke colour with a light fringe. As with the other moths of the family, its labial palpi are very long.
The moth flies from July to September.