Lycinella hansoni Ferreira & Ivie

Ferreira, Vinicius S. & Ivie, Michael A., 2018, A revision of Lycinella Gorham, 1884 with the description of six new species (Coleoptera, Lycidae, Calopterini), ZooKeys 792, pp. 69-89 : 69

Lycinella hansoni Ferreira & Ivie sp. n. Figs 5, 14, 30, 37

Type material (1).

Holotype: COSTA RICA: Cartago; La Cangreja 1950 m; 9.8°N, 83.58°W; SEP-OCT 1992, Malaise; RA Calderon G. (USNM).

Etymology.

The species was described after Paul Hanson, collector of most specimens of Lycinella used in this study.

Diagnosis.

The unique genitalia of this species, characterized by the subquadrate apex of the short median lobe, which is 0.6 × the length of the parameres, will distinguish this otherwise rather generalized species from all other Lycinella species. Among the species with a bicolored pronotum, only L. opaca also lacks stemmata on the pro- and mesocoxae. These two species are easily distinguished by the anteriorly rounded pronotum and strong elytral costae of L. opaca (Figure 1), in contrast to the angulate anterior angles and weakly costate elytra of L. hansoni (Figure 5).

Description.

General dorsal coloration dark brown, pronotum yellow, bearing longitudinal black stripe not reaching anterior margin (Figure 5). Antennae subserrate; antennomeres IV–IX dorsoventrally flattened (Figure 14); scape subconical, antennomeres II and III short, subequal in length, approx. 1/4 length of I; antennomere IV elongate, approx. 1/3 longer than I; antennomeres V–IX gradually decreasing in length. Mandibles elongate. Labrum wider than long. Maxillary palpomere I short, approx. 1/3 length of II, which is cylindrical, palpomere III approx. half length of II, IV elongate, subequal in length of II, acuminate, densely setose. Labial palp 3-segmented, palpomere I and II subequal in length, palpomere III elongate and cylindrical, acuminate, densely setose.

Pronotum trapezoidal, slightly constricted medially, with posterior margin slightly curved, anterolateral angles rounded, with posterolateral angles pronounced and acute, divergent, with weakly visible longitudinal carina in anterior portion of pronotum, bifurcate posteriorly forming an areola. Prosternum V-shaped; posterior margin rounded; laterally reaching hypomeron.

Elytra approx. 11 × longer than pronotum; costae I, II and IV moderately visible (Figure 5). Humeral region rounded, non-pronounced. Legs slender, elongate. Pro- and mesocoxae not bearing stemmata. Aedeagus with median lobe uniform, apex subquadrate, 1.7 × longer than parameres; parameres subequal in length of phallobase; phallobase elongate, postero-lateral angles rounded, posterior margin straight (Figure 30).

Length (pronotum+elytra): 4.2 mm. Width (across humeri): 1.0 mm.

Distribution.

Costa Rica: Cartago (Figure 37).