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Notes on the Life History and Mating Behavior of Ellychnia corrusca (Coloeptera: Lampyridae)

Jennifer A. Rooney and Sara M. Lewis
The Florida Entomologist
Vol. 83, No. 3 (Sep., 2000), pp. 324-334
DOI: 10.2307/3496351
Stable URL: http://www.jstor.org/stable/3496351
Page Count: 11
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Notes on the Life History and Mating Behavior of Ellychnia corrusca (Coloeptera: Lampyridae)
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Abstract

Population dynamics and reproductive activity were examined in a Massachusetts population of the common diurnal firefly, Ellychnia corrusca. Although closely related to nocturnal beetles in the genus Photinus, Ellychnia lack adult light organs. A mark-recapture study of overwintering adults demonstrated low winter mortality and supported the hypothesis that adults overwinter for a single year. By dissecting males and females sampled throughout late winter and spring, it was found that adults become reproductively active in early March, when male seminal vesicles first contained sperm and female ovaries first contained mature oocytes. Both sexes mated multiply during the approximately six-week mating season (early April through mid-May), and copulations lasted up to 28 h. Adults collected in fall had higher abdominal fat body volumes than those collected in spring, and females contained more fat body than males. The life history and mating behavior of E. corrusca are discussed in comparison to Photinus fireflies. /// Dinámicas de población y actividad reproductiva fueron examinadas en una población de Massachussets de la luciérnaga común diurna, Ellychnia corrusca. Aunque están cercanamente relacionados a escarabajos en el genero nocturno Photinus, adultos de Ellychnia carecen órganos de luz. Un estudio de marca-recaptura de adultos que sobre-inviernan demostró mortalidad baja en invierno y apoyo la hipótesis que adultos sobre-inviernan por solo un año. Al disecar machos y hembras muestreados durante un periodo tarde en el invierno y primavera, se encontró que adultos se convierten activos reproductivamente temprano en Marzo, cuando las vesículas seminales contienen esperma por primera vez y los ovarios de las hembras contienen oocitos maduros por primera vez. Ambos sexos aparearon múltiples veces durante la temporada de apareamiento de aproximadamente seis semanas (temprano en Abril hasta mitad de Mayo), y copulaciones duraron hasta 28 h. Adultos colectados en otoño tuvieron volumen de grasa de cuerpo abdominal mas altos que esos colectados en primavera, y las hembras contuvieron mas grasa de cuerpo que los machos. La historia de vida y comportamiento de apareamiento de E. corrusca es discutido en comparación a luciérnagas de Photinus.

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