Descriptions And Recognition Of Larvae Of Some Northern North American Species Of Ilybius Erichson (Coleoptera: Dytiscidae) Author Hicks, B. J. College of the North Atlantic P. O. Box 60, Carbonear Newfoundland, A 1 Y 1 B 5, Canada & Institute of Terrestrial Ecology, Edinburgh Research Station, Bush Estate, Penicuik, Midlothian, EH 9 0 QB, UK Author Larson, D. J. Department of Biology Memorial University of Newfoundland St. John’s Newfoundland, A 1 B 3 X 9, Canada text The Coleopterists Bulletin 2000 2000-03-01 54 1 36 59 journal article 310609 10.1649/0010-065x(2000)054[0036:darolo]2.0.co;2 9d8a79bd-5ec5-449e-9d9d-cec8ee872c0a 1938-4394 4900141

Table 2. Egg measurements (mm) for three species of Ilybuis Erichson. Values given as means ± SD.

Species	n	Length	Width	Length/Width
† Significantly different from other species at P <0.05 level.
I. biguttulus	12	1.49 ± 0.06†	0.63 ± 0.05	2.38
I. discedens	14	1.43 ± 0.03†	0.49 ± 0.02†	2.92†
I. pleuriticus	22	1.65 ± 0.08†	0.66 ± 0.07	2.52