Author： OETTING RONALD D. YONKE THOMAS R.
Publisher： Entomological Society of America
ISSN： 1938-2901
Source： Annals of the Entomological Society of America, Vol.64, Iss.6, 1971-11, pp. : 1289-1296
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Abstract
The egg and 5 nymphal instars of Hymenarcys aequalis (Say) and H. nervosa (Say) are described and illustrated. H. aequalis in the laboratory took approximately 5.7 days for egg development. The average time spent in each of the 5 nymphal stadia was 5.0, 8.3, 6.8, 8.3, and 11.8 days, respectively. H. nervosa in the laboratory took approximately 7.3 days for egg development. The average duration of each of the 5 nymphal stadia was 5.5, 6.9, 6.9, 7.7, and 13.2 days, respectively. Both species overwinter as adults and complete at least 2 generations a year in Missouri. A tachinid parasite, Gymnoclytia immaculata (Macquart), was reared from a female H. nervosa.
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