Corydalid Life Histories 119 



pectinicornis adults light-trapped by other collectors contained either all 

 or none of their eggs, indicating only one oviposition. The fecundity 

 ranged from 967 to 1500 eggs (x = 1250). No egg masses were found in 

 the field. 



Adult C. rastricornis laid their eggs a short distance away from the 

 water (Needham and Betten 1901). The grayish eggs were layed in V- 

 shape rows attached to flat surfaces. A pair of C. pectinicornis was 

 observed and photographed while copulating on a fern. After the male 

 left, the female, who had already laid most of her eggs, continued ovip- 

 ositing using the outline of the pattern she had already begun. Around 

 900 eggs were laid, all of which hatched 17 days later. Davis (1903) 

 reported 30 to 40 egg masses, of 1000 to 2000 eggs each, on the under- 

 side of a wooden boat-landing in June and July. Other masses were as 

 high as 10 to 15 feet above water on stones and leaves. Hatching was 

 reported to occur five to six days later. On 16 June, Smith (1922) 

 observed C. pectinicornis depositing 1000 to 2000 eggs in winding paral- 

 lel rows one layer deep. The eggs hatched eight days later in a 45-minute 

 period at night. A complete description of the egg masses and eggs of C. 

 pectinicornis was given by Baker and Neunzig (1968). 



ACKNOWLEDGMENTS.— Special thanks are extended to 

 Miss Vickie Crager for typing the manuscript. Also, we express our 

 appreciation to the following persons for help in the field work: Kerry 

 Bledsoe, Bill Cremeans, Steve Lawton, Tom Rone, Mary Beth Roush, 

 and Jan Taylor. 



LITERATURE CITED 

 Baker, J. R., and H. H. Neunzig. 1968. The egg masses, eggs, and first instar 



larvae of eastern North America Corydalidae. Ann. Entomol. Soc. Am. 



6/(5): 118 1-1 187. 

 Brimley, C. S. 1908. Notes on some Neuropteroids from Raleigh, N.C. Entomol. 



News 79:133-134. 

 Chaplain, A. B., and H. B. Kirk. 1926. Bait pan insects. Entomol. News 



57(9):288-291. 

 Cuyler, R. D. 1956. Taxonomy and ecology of the larvae of sialoid Megaloptera 



of east-central North Carolina, with a key to and descriptions of the larvae 



of genera known to occur in the U. S. Unpubl. MS Thesis. N. C. State 



Coll., Raleigh. 150 pp. 

 1958 The larvae of Chauliodes Latreille (Megaloptera: Corydalidae). 



Ann. Entomol. Soc. Am. 57:582-586. 

 Davis, K. C. 1903. Sialididae of North and South America. In Aquatic Insects 



in New York State. N.Y. State Mus. Bull. 65:442-487. 

 Dolin, Pamela S. 1980. The life history and ecology of Chauliodes rastricornis 



Rambur and C. pectinicornis (Linnaeus) (Megaloptera: Corydalidae) in 



Greenbottom Swamp, Cabell County, West Virginia. Unpubl. MS Thesis. 



Marshall Univ., Huntington. 58 pp. 



