Allometry and morphological trait relationship in the sexually dimorphic Chinese dobsonfly, Acanthacorydalis asiatica (Wood-Mason, 1884) (Megaloptera, Corydalidae)

Log-log relationships between the prothorax length (PL) and the head width (HW in A), mandible length (ML in B), wing length (WL in C), and genital (ectoproct) length (GL in D) in male and female Acanthacorydalis asiatica. Regression lines: A y = 0.829 x + 0.211 in males and y = 0.773 x + 0.310 in females B y = 1.663 x − 0.428 in males and y = 1.113 x − 0.181 in females C y = 0.582 x + 1.046 in males and y = 0.903 x + 0.823 in females D y = 0.605 x − 0.094 in males. For statistical tests, see the text.