Research Article

Life Histories of Two Endangered Sea Skaters Halobates matsumurai Esaki and Asclepios shiranui (Esaki) (Hemiptera: Gerridae: Halobatinae)

Table 2

Average numbers of mature and submature eggs per female and length and width of mature eggs of A. shiranui.

Date of sampling (2008) No. (average ± S.D.) of eggs/female Length and width (average ± S.D.) of mature egg
Mature eggsSubmature eggsLength (mm)Width (mm)

June 6, 2310 (1)1.0 ± 2.835.5 ± 3.661.16 ± 0.080.37 ± 0.07
July 30, 31; Aug. 120 (0)7.1 ± 3.556.2 ± 2.431.20 ± 0.040.39 ± 0.02
Oct. 14; Nov. 2010 (0)5.2 ± 1.873.7 ± 2.061.33 ± 0.050.39 ± 0.02

*Number of females dissected. Values in parenthesis are the number of females with neither mature nor sub-mature eggs.