14-15mm, 13mm. The facies is very similar to that of scopigera (see previous species), including the triangular, black, brush-like terminal segment of the male labial palps, except the pale reniform stigma on the forewing is generally more lunulate. However, the male genitalia have the central valve process in a more distal position, directed towards the apex of the valve. The juxta has a pair of lateral horns that are only very small in scopigera. The saccus is more acute. The aedeagus vesica has a smaller cluster of only a few (3+) more robust, shorter spines at the apex of a distal diverticulum rather than many needle-like basally directed ones (scopigera). The female genitalia of tenomigera resemble those of scopigera generally, including the tapering of the corpus bursae over its distal half. Both have the ostium in a scobinate pouch posterior to the eighth segment, but this is more distinctly angled in scopigera. The ductus bursae is short in both species, sclerotised except for a short section just prior to the junction with the corpus bursae. A pair of signa occurs centrally, each at the centre of a rugose areole which is very much more extensive in scopigera (in the specimen of scopigera dissected (slide 19843), a few spicules from a male vesica were found in the corpus bursae).
Holotype. Tenom, Brit. N. BORNEO (E. Wahr), BM noctuid slide 19819.
Paratypes: 9, 2 (slide 19838) as holotype.
Taxonomic note. There is similar material from Peninsular Malaysia, Singapore and Java. A male from Java (slide 19837) has a longer, straighter, apically directed valve process and has only short, robust horns laterally on the juxta which has an acute apex rather than a square one. The vesica has a small cluster of spines as in the Bornean species but these spines are larger.
Geographical range. Borneo.
Habitat preference. Tenom is a town in the lowlands of Sabah.
