Bryolymnia Hampson, 1908

Lafontaine, Donald, Walsh, J. & Holland, Richard, 2010, A revision of the genus Bryolymnia Hampson in North America with descriptions of three new species (Lepidoptera, Noctuidae, Noctuinae, Elaphriini), ZooKeys 39 (39), pp. 187-204 : 189

Bryolymnia Hampson, 1908

Type species. Dacira roma Druce, 1894 , by subsequent designation by Hampson 1910.

Diagnosis. Adults. Males and females of similar size; forewing length 9–18 mm. Head – Male antenna filiform to beadlike, occasionally very slightly biserrate; setae tending to group into tuft on each side in species with slightly biserrate antenna. Female antenna filiform, minutely setose ventrally. Frons rounded and smooth, or slightly bulging in middle, covered with short broad scales. Eye rounded, surface smooth, without surface hair. Labial palpus porrect, apical segment 0.3–0.4 × as long as second segment. Thorax – Thorax: covered with broad apically serrated scales; scales tend to form slightly raised dorsal tuft on prothorax and spreading, slightly doubled dorsal tuft on metathorax. Wings: Forewing ground color typically of brown and black with areas of white or pale green, especially medial area. Hindwing white to fuscous. Legs: Covered with short broad scales; tarsi with three ventral rows of spiniform setae. Abdomen – Base of abdomen with basal abdominal brushes, levers, levers and pockets in most species. Eighth abdominal sternite of male with slightly eversible coremata with a tuft of long setae. Male genitalia – Uncus cylindrical, thin, tapered from base to spine-like apex. Tegumen broad, truncated apically, ventrally expanded on posterior surface into round projecting lobe on each side. Valve long and mainly parallel sided, most often bent dorsally at point of weakness of costa; costa a sclerotized thickening on dorsal margin of valve, but dorsal margin with weakly sclerotized area at point where digitus bends away from costa; a slightly expanded cucullus with partial or complete corona on apical margin; digitus mainly a sclerotized band fused to mesial surface of valve adjacent and partially fused with costa, except at weakened area of costa where digitus bends obliquely posteroventrally across valve with apex tapered and free from surface of valve; apical part of clasper a simple curved (or slightly S-shaped) rod projecting posteriorly on inner surface of valve, with minute teeth or short subbasal process in some species; ventral base of clasper extending as a thin sclerotized rod to apex of sacculus; dorsal base of clasper diagnostic, expanded into large, rounded or lobed heavily sclerotized plate extending above dorsal margin of valve; sacculus 0.3–0.4 × length of valve, mainly weakly sclerotized, with membranous transverse suture at 2/3 from base and with apical 1/4 more heavily sclerotized. Aedeagus weakly and patchily sclerotized, often with apical part of aedeagus extended as variably sclerotized straps onto base of vesica. Vesica short, about 1.5–2.0 × length of aedeagus; vesica variably armed with “brushes” of long thin spines, stout cornuti, often projecting obliquely from a strongly sclerotized base, or with fields of minute spinules. Female genitalia – Corpus bursae thin and membranous, rounded, oval, or elongated, with one or two long signa in some species. Ductus seminalis at posterior end of corpus bursae in most species. Appendix bursae absent in most species; one species in North America ( B. semifascia ) with rounded, sclerotized appendix bursae at junction of corpus bursae and ductus bursae. Ductus bursae with length, shape, and amount and position of sclerotization highly variable and species-specific. Ventral wall of ostium bursae sclerotized and forming a plate that projects posteriorly. Anterior and posterior apohyses rod-like, 1.0–1.5 × length of abdominal segment eight. Anal papillae lightly sclerotized rounded posteriorly, covered with mixture short and long setae.