Obvolvent

Eggs mainly locate at the inside of leaf sheaths of the second and third segments near the ground of the corn plants of which the haulm is slimmer and the obvolvent of the leaf sheath is not tight, which can account for more than 80% of oviposition amount.

Hypopygium of ♂♂ remarkably and conspicuously large, in form of an oval, box-like structure, with tergite 9 and anal lobes constituting the lid, but the tergite itself immovably united on each side basally to sternite 9; latter sternite enormously developed and also as described for this species, boat-like, shell-like, keeled below, with a projecting process or prong on each side postero-dorsally, posteriorly vertically deeply incised (V-shaped), the upper angles or corners of the incision (or posterior angles of sides of sternite 9) prominent, rounded, or broadly projecting upwards under the apical part of posterior lateral lobes of lid-like tergite 9 (this latter condition described by me for the type-species gaerdesi (Hesse 1972: 162, fig. 6 right) as an obvolvent structure connected or fused to tergite 9 may probably not be united to tergite 9 at all, for it could not be seen as an unconnected structure in the old dried ♂ holotype)

[…] Intervals weakly convex, deeply, rugose with coarse contiguous punctures; sutural costae raised, smooth, glabrous, very finely, sparsely punctate; humeral calla noticeably tumid, glabrous, anteriorly abruptly obvolvent […] Humeri glabrous, smooth, abruptly obvolvent