Lucaina Duges, 1879: 180

Motyka, Michal, Masek, Michal & Bocak, Ladislav, 2017, Congruence between morphology and molecular phylogeny: the reclassification of Calochromini (Coleoptera: Lycidae) and their dispersal history, Zoological Journal of the Linnean Society (Zool. J. Linn. Soc.) 180 (1), pp. 47-65 : 55-57

Lucaina Duges, 1879: 180 .

Type species: Lucaina schini Duges, 1879 (by monotypy).

Figure 5E, O .

Differential diagnosis: Lucaina and closely related Macrolygistopterus ( Fig. 1A ) share the rostrate head and they differ in the shape of the apical part of parameres ( Fig. 5N – O ) and the long erect setae in the elytra of Lucaina . These genera have a vicariant distribution (Figs S8, S9, Supporting Information). Caloptognatha has similar setae in the elytra, but does not have the prolonged rostrum and has long, slender mandibles ( Green, 1954). Lygistopterus is another genus distributed in the Nearctic region and differs by its wide, parallel-sided parameres.

Distribution: USA: California, Arizona; Mexico.

Figures

Figure 1. A, phylogenetic hypothesis for Calochromini based on the maximum-likelihood analysis of the MUSCLE alignment. Numbers at the branches are maximum-likelihood bootstrap values and Bayesian posterior probabilities. The complete tree with outgroups and full-branch lengths is shown in Fig. S8 (Supporting Information). B, discrete phylogeography reconstruction using a Bayesian approach as implemented in BEAST 2.1; pie charts represent posterior probabilities of biogeographical origins. C, geographical distribution chart of the Calochromini genera.

Figure 5. A–H, general appearance: A, Lygistopterus sanguineus; B, Calochromus (s.s., glaucopterus; C, C. (Flabellochromus, kelantanensis; D, C. (Paracalochromus) giganteus; E, Lucaina discoidalis; F, Macrolygistopterus rubripennis; G, Micronychus bimaculatus; H, Parantis triguttatus. I–O, male genitalia, ventrally: I, Micronychus bimaculatus; J, Parantis triguttatus; K, Lygistopterus sanguineus; L, Calochromus (s.s.), glaucopterus; M, C. (Flabellochromus) kelantanensis; N, Macrolygistopterus rubripennis; O, Lucaina schini. P, Lygistopterus sanguineus, terminal abdominal sclerites, ventrally. Q, Parantis triguttatus, antenna, detail. Scale bars: A–H = 2.5 mm; I–Q = 0.25 mm.