Lycinella adamantis 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 adamantis Ferreira & Ivie sp. n. Figs 4, 13, 29, 37

Type material (1).

Holotype: COSTA RICA: Cartago; 4Km NE Canon, Genesis II; 9.716°N, 83.916°W; JUNE 1995, 2350m; S & P Friedman. Malaise (USNM).

Etymology.

The species name is in reference of the shiny pronotal stemmata that resemble small diamonds on the completely black pronotum.

Diagnosis.

Both the completely black body (Figure 4) and the unique male genitalia with median lobe tapered apically (Figure 29) will distinguish L. adamantis from all other Lycinella species.

Description.

General dorsal coloration black (Figure 4). Antennae subserrate; antennomeres IV–XI dorsoventrally flattened (Figure 13); 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–X gradually decreasing in length; antennomere XI elongate. Mandibles elongate. Labrum wider than long. Maxillary palpomere I approx. 1/3 length of II, palpomere II cylindrical, palpomere III approx. half length of II, IV elongate, subequal in length to II, acuminate, densely setose. Labial palp 3-segmented, palpomeres I and II subequal in length, palpomere III elongate and cylindrical, acuminate, densely setose.

Pronotum trapezoidal, 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 9 × longer than pronotum; costae II and IV visible, I and III weakly visible. Humeral region rounded in dorsal view. Legs slender, elongate (Figure 4). Pro- and mesocoxae with stemmata absent. Aedeagus with median lobe tapered apically, 1.4 × longer than parameres; Parameres 0.6 × longer than phallobase; phallobase emarginated posteriorly (Figure 29).

Length (pronotum+elytra): 4.5 mm. Width (across humeri): 1.0 mm.

Distribution.

Costa Rica: Cartago (Figure 37).