Grammia (Mimarctia)

Schmidt, B. Christian, 2009, Taxonomic revision of the genus Grammia Rambur (Lepidoptera: Noctuidae: Arctiinae), Zoological Journal of the Linnean Society 156 (3), pp. 507-597 : 517

SUBGENUS MIMARCTIA NEUMÖGEN & DYAR

Diagnosis: Two species are included in the subgenus Mimarctia : Grammia arge and G. doris . Although the wing pattern is superficially much like other Grammia , the forewing costal cell is entirely palescaled (except sometimes at extreme base), and the costal portion of the postmedial band is angled sharply basad, forming a straight or nearly straight line with the anal portion of the subterminal band (Figs 4, 5). Structurally, the dorsal margin of the male juxta is deeply cleft, v-shaped to slightly u-shaped, with a medial groove extending ventrally; the diverticula of the male vesica are much larger and more elongate than in any other Grammia species ( Figs 41B, 42B ). The female ductus bursae lacks the sclerotized lateral plates ( Figs 72, 73 ). The cremaster of the pupa is elongate, with well-developed longitudinal folds not extending onto distal portion of cremaster ( Smith, 1938a). The larvae have a complete or partial subdorsal stripe, and the tubercles are dull with finely barbed setae ( Smith, 1938a).

Figures

Figures 40–45. Genitalia of male Holarctia and Grammia, ventral aspect of valve (a) and right lateral aspect of aedeagus (b) (scale bar = 1 mm). 40, Holarctia obliterata (Stretch). 41, Grammia arge (Drury). 42, Grammia doris doris (Bdv.). 43, Grammia phyllira (Drury). 44, Grammia placentia (J. E. Smith). 45, Grammia virgo virgo (L.).

Figures 72–78. Genitalia of female Grammia, ventral aspect (scale bar = 1 mm). 72, Grammia arge (Drury). 73, Grammia doris doris (Bdv.). 74, Grammia obliterata (Stretch). 75, Grammia phyllira (Drury). 76, Grammia placentia (J. E. Smith). 77, Grammia virgo (L.). 78, Grammia parthenice (Kby.).