Dromaeolus holdridgei Otto, Muona and Cordoba-Alfaro 2023, new species

Dromaeolus holdridgei Otto, Muona and Córdoba-Alfaro, new species Figures 61–62 Diagnosis. The new eucnemid species can be readily distinguished from any ornate members of Dromaeolus present in Costa Rica by the presence of interantennal carina, very short, median carina on the frontoclypeal region and short, median carina present on the frons except D. herediensis new species . Narrower silver-colored band on the elytra along with the absence of silver-colored setae at elytral apices will distinguish the new species from D. herediensis new species . Type material. Female holotype : “ COSTA RICA: Heredia; Est.Bio. La Selva, 50–; 150 m 10°26′N 84°01′W; Proy. ALAS, INBio-OET” / “M/01/136; 01 Julio 1993; Parcelas sucesionales” / “ HOLOTYPE: ; Dromaeolus ; holdridgei ♀; Otto, Muona & Córdoba-Alfaro; Det. R. L. Otto; 2019” (red printed label). Holotype to be deposited in INBC. Description. Female holotype : Length, 6.0 mm. Width, 1.5 mm. Body elongate; black; antennae black; femur and tibiae black, tarsi dark brownish-black; head and pronotum clothed with short, recumbent silver-colored setae more apparent at base and along lateral sides of pronotum, elytra with silver-colored setae more apparent along lateral sides at basal half, narrow band across the middle of each elytron and narrow band along elytral suture terminating at the middle band (Figure 61). Head : Surface dullish, subspherical with closely spaced punctures; frons convex with short median carina; frontoclypeal region with short, delicate median carina; interantennal carina present, sinuous; apical margin of frontoclypeal region weakly trilobed, more than 2 times wider than base; mandibles stout, bidentate, densely punctate. Antenna : Filiform from flagellomeres I–IX, attaining nearly 1/3the length of the body, never passed beyond pronotal hind angles; flagellomere I longer than wide, longer than II; flagellomere II quadrate, shorter than III; flagellomere III slightly longer than wide, shorter than IV; IV–VIII each sub-equal, longer than wide; ...