Stenoloba Staudinger, 1892

Behounek, G. & Kononenko, V. S., 2010, Fourteen new species of the genus Stenoloba Staudinger, 1892 from South East Asia (Lepidoptera: Noctuidae, Bryophilinae), Zootaxa 2679 (1), pp. 1-31 : 3

Genus Stenoloba Staudinger, 1892

Stenoloba Staudinger, 1892 , in Romanoff , Mémoires sur les Lépidoptéres 6: 381. Type-species : Dichagyris jankowskii Oberthür, 1884 , Etudes d’Entomologie 10: 28, Pl. 3: 5, by monotypy. Syntypes [ Russia, Primorye terr.], Sidemi (BMNH).

Synonymy: Neothripa Hampson, 1894 (Type species: Neothripa punctistigma Hampson, 1894 [ India: Punjab]); Lepidopyga Warren, 1914 (Type species: Stenoloba viridimicta Hampson, 1910 India: Assam]); Conicochita Hampson, 1918 (Type-species: Chytonis olivacea Wileman, 1914 [ Taiwan]).

Diagnosis. Small to medium sized moths; frons with conical protuberance; labial palps short, with short 3 rd segment; thorax in some species with prominent crest, formed by special erected scales (sometimes not strongly expressed), abdominal crest in some groups also present; forewing often narrow, with arched basal part of costa and parallel costal and inner margins, or broader, with outer margin perpendicular to inner margin, M2 reduced; wing and body coloration often green or with greenish tint or marks; scaling smooth, some species with erected scales in dark elements of pattern; coloration often with strong shine.

In male genitalia uncus most often reduced, rudimental or short and week; in some groups long, slender, or broad, flattened; tegumen always narrow; vinculum narrow, short; juxta with triangular or rounded basal plate and often with more or less developed apical extension; valva elongate, narrow; cucullus tapering, armed with a field of strong spine-like setae, or at least a few bristles or with stronger extension at apex; sacculus regularly smooth, rather short, but in some cases very long, with pointed flat extension; harpe always absent, its basal plate (clasper) present; anal tube rounded, weakly sclerotized, but in some species with strongly sclerotized scaphium. Aedeagus relatively short and broad; carina in some cases with scobinate plate; vesica rather short, broadly tubular, recurved, often with diverticula; in a part of species it armed with strong cornutus or with spine-like small cornuti arranged in a field or row; in some cases with narrow sclerotized bar. Males of some Indonesian species have abdominal coremata as gland and brush on the 7 th abdominal segment ( Figs 51–54 ), not found in the other Stenoloba species.

In female genitalia ovipositor short, weak; antrum sclerotized, flat, medium long or long, cup-shaped or quadrangular; ductus bursae often short, flattened, variably sclerotized, smooth or folded, in some cases long, tubular, sclerotized; cervix bursae variable, from small to large, membranous to heavily sclerotized, bearing fold or crests; corpus bursae usually elongate, membranous.

Most species inhabit subtropical and deciduous forests in mid mountain belt at elevations of 500–2500 m. Known larvae of S. jankowskii and S. assimilis feed on lichens.

The genus presently includes 75 species arranged in 14 species groups.

Figures

FIGURES 49–54. Stenoloba spp., tip of male abdomen. 49. S. ansari; 50. S. wolfgangi, Vietnam; 51. S. futii; 52. S. futioides; 53. S. benjamini; 54. S. javensis.