Lecithocera strenua is a moth in the family Lecithoceridae. It was described by Alexey Diakonoff in 1968. It is found on Mindanao in the Philippines.[1]
The wingspan is about 20 mm. The forewings are dull blackish brown with slender yellow streaks arranged as follows: one short, from beyond the base to one-fifth just below the fold. Another, parallel to this from the base, running below the costa, to one-third, merging into a third, transverse, slightly curved fascia, dilated on the costa, slender below. There is a rounded conspicuous black patch on the dorsum, between the first and third fascia. There are shining metallic-leaden streaks with a bluish or greenish tinge, along the basal one-third of the costa above the second yellow streak, another below this. There is also a broad submedian transverse band, immediately following the transverse yellow streak. A slender streak is found below the posterior half of the costa to well before the apex, encircled by yellowish-tawny color, forming an elongate oval, edged posteriorly with black. There is also a broad metallic marginal band in the apex and along the termen, irregularly dentate anteriorly, sharply and narrowly edged posteriorly by dull black. The hindwings deep fuscous with a faint bronze tinge.[2]