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Volume 28, Number 4
343
284. Nuevos nombres para generos de Lepidoptera. Acta Zool. Lilloana, Tucuman 22: 135 (1968).
285. Dos especies nuevas de Audre. (Lep. Rhop. Riodinidae). Acta Zool. Lilloana, Tucuman 22: 137-142 (1968).
286. Cuatro satiridos nuevas de Ecuador (Lep. Rhop. Satyridae). Acta Zool. Lilloana, Tucuman 22: 201-216 (1968).
287. Fauna del noroeste Argentina. I. Las aves de Guayapa (La Rioja). Acta Zool. Lilloana, Tucuman 22: 211-220 (1968).
288. Lista de los tipos de insects y otros invertebrados conservados el las colecciones de Instututo Miguel Lillo. (3a entrega.) Acta Zool. Lilloana, Tucuman 22: 337-352 (1968).
289. Notes on butterfly migrations between April 1966 and May 1968. Entomol. 102: 10-11 (1969).
290. Datos para la estudio ontogenia de Lepidopteros Argentinos. Publ. Misc. No. 31, Instituto Miguel Lillo, 142 p. (1969).
291. Lista de los tipos de insectos y otros invertenbrados conservados en el Instituto Miguel Lillo. (4a entrega.) Acta Zool. Lilloana, Tucuman 26: 105-116 (1970).
IP. Observations on migrations of Lepidoptera in northwestern Argentina, November
1968-June 1970. Entomol. IP. Guia para el entomologi principiante. (Segunda Edicion). IP. Catalogo de los ropaloceros Argentinos. (450-500 p.).
UNUSUAL COPULATORY BEHAVIOR IN EUPHYDRYAS CHALCEDONA (DOUBLEDAY) (NYMPHALIDAE)
A very unusual copulation between two males and one female of Euphydryas chalcedona was observed on 13 June 1974 in Whitewater Canyon, San Bernardino Mountains, Riverside County, California. The three individuals were disturbed from a mating position at the top of a bush. Flight was attempted by the female who carried the two males with her. She was barely able to fly with this weight and the flight was on a downward trajectory until intercepted by my net. The three butterflies were genitalically attached and appeared to be in copula. They remained so in the net and after being dispatched by pinching. All three individuals were very fresh, especially the female who had one hind wing incompletely opened. It is possible that this mating occurred before the female had flown. The time of day was 1300 PDT.
A similar mating between two males and one female of Phyciodes phaon was reported by Perkins (1974, J. Lepid. Soc. 27: 291-294) who referred to it as a pleoheterosexual coupling. As far as I can ascertain, no other examples of a copulation between three or more individuals of Lepidoptera have been reported in the literature.
John H. Masters, 5211 Southern Avenue, South Gate, California 90280.