Oenomaus moseri

Male FW length: 16.1 mm (SD = 0.9, N = 8). Female FW length: 15.7 mm (N = 1). Wing pattern (Figs 10, 11) and genitalia (Figs 25, 30) illustrated. The adult wing pattern of Oenomaus moseri is similar to that of the sympatric Oenomaus morroensis Faynel & Moser and to that of Oenomaus cyanovenata (D’Abrera); the species with which it was previously confused (Faynel 2008). Oenomaus moseri (Figs 25, 45) differs from Oenomaus morroensis (plate 11 in Faynel and Moser 2008) by its male genitalia having (1) a smaller dorsal part of the valvae attached to the top of the ventral part, not to the bottom, (2) a swollen posterior part of the male penis, and (3) a larger posterior part of the saccus in lateral view. Oenomaus moseri differs from O. cyanovenata by (1) a wider DFW black margin at the tornus, (2) a central depression on the posterior edge of the eighth tergum, and (3) a swollen posterior part of the male penis. Oenomaus moseri differs from the sympatric Oenomaus geba by lacking a white spot on the basal side of VHW cell Rs-M1 (Figs 10–12). The lack of geographical variation in the characters distinguishing Oenomaus moseri and Oenomaus cyanovenata argues against the hypothesis that the former is a geographical variant of the latter. Preliminary data on divergence of “barcode” DNA sequence data is consistent with morphology. The divergence among three individuals of Oenomaus moseri (CF-LYC-012 & CF-LYC-063) is 0%, among four individuals of Oenomaus cyanovenata (CF-LYC-047, CF-LYC-048, & CF-LYC-049) is 0%. In contrast, the divergence between Oenomaus moseri and Oenomaus cyanovenata is more than 4% and between two Oenomaus moseri and a paratype of Oenomaus morroensis (CF-LYC-015) is more than 5%.