Morphological variation of the epiphyses in some Ambulycini hawkmoths (Lepidoptera, Sphingidae, Smerinthinae) Author Ancajima, Georgette Paola Author Duarte, Marcelo text Zoologischer Anzeiger 2023 2023-05-31 304 1 9 http://dx.doi.org/10.1016/j.jcz.2023.02.003 journal article 281828 10.1016/j.jcz.2023.02.003 92495122-c02e-44ea-8078-3472da717a9b 1873-2674 10833352 Akbesia davidi (Oberthür, 1884) ( Figs. 2B and 4C ). Length and width in male: 1.83 and 0.49 mm , respectively, covering 58.9% of the foretibia. Length and width in the female: 1.26 and 0.21 mm , respectively, covering 56.8% of the foretibia. Epiphyses lanceolate in both sexes. Lower lobe rounded. Invagination u-notched. Foretibiae length: 2.28 mm (Ƌ), 2.93 mm ( ♀ ). Epiphyses are sexually dimorphic in the following features: i) epiphyses apically inserted at about two-sevenths of the foretibia length in male, two-fifths of the foretibia length in female; ii) upper lobe straight in male, concave in female; iii) invagination strongly accentuated in male, slightly accentuated in female, iv) comb (For details see Table 2 ).