Falsoceratoprion, 2022

Ferreira, Vinicius S. & Tettamanzi, Lorenzo, 2022, Falsoceratoprion fumagalliae, New Genus and Species: The First Calopterini from Dominican Amber (Coleoptera: Lycidae), The Coleopterists Bulletin 76 (2), pp. 288-292 : 289

Genus FALSOCERATOPRION Ferreira , new genus

zoobank.org/ urn:lsid:zoobank.org:act:505D4581-49AA-4E2B-AF87-DA7CAA4BAB61 Fig. 1

Type Species. Falsoceratoprion fumagalliae Ferreira , new species.

Etymology. The name refers to the similarity of the new genus to the Neotropical mainland genus Ceratoprion Gorham, 1884 . Falso is a Latin word meaning false, deceiving.

Differential Diagnosis. Falsoceratoprion can be separated from all other known West Indian Lycidae (extant and fossil) by the combination of the following characteristics: distinctly serrate antennae (vs. subserrate or pectinate in Thonalmus Bourgeois, 1883 ; distinctly serrate in Mesopteron Bourgeois, 1905 ; subserrate, filiform, flabellate or pectinate in the Leptolycini ), with the pedicel multiple times shorter than antennomere 3 (vs. variable across the different genera, usually pedicel and antennomere 3 subequal in length, with exceptions in the Leptolycini [pedicel much shorter than antennomere 3 in Cessator Kazantsev, 2009 and Dominopteron Kazantsev, 2013 ]); the apparently developed mouthparts (vs. standard mouthparts in all Thonalmus and Mesopteron ; Leptolycini , with weakly developed mandibles that are seemingly absent, with either strongly reduced or absent labial palps).

Falsoceratoprion also has a subtrapezoidal pronotum, bearing an obscure fovea in the posterior portion (vs. usually subpentagonal in Thonalmus , bearing a distinct longitudinal carina in the anterior half and a cell in the posterior region; bearing a strongly visible longitudinal carina, entire through its full extent in Mesopteron ; variable shapes in Leptolycini ); the smooth elytra, not bearing any transverse costae nor presenting strongly developed cells (vs. overall strongly developed, irregular cells in Thonalmus ; distinctly subquadrate and strongly developed cells in Mesopteron and Dominopteron ; smooth elytra in all other Leptolycini ); the strongly setose and dehiscent elytra (vs. variable across the groups, expanded apically or only weakly dehiscent in Thonalmus , usually glabrous; parallel-sided and bearing short setation in several Mesopteron ; variable in the Leptolycini , which are overall dehiscent and densely setose in Electropteron Kazantsev, 2013 ) and for bearing three distinctly visible costae that are fused apically (vs. three costae in Thonalmus and Mesopteron ; variable in the Leptolycini , but usually two-costate).

From the described Lycidae genera occurring on the Neotropical mainland, Falsoceratoprion is superficially similar to Ceratoprion, Ceratolycus Kazantsev, 2017 , and Aplopteron Kazantsev, 2017, differing from these genera by possessing normally developed mouthparts (vs. weakly developed and strongly reduced labial palps in the mentioned genera), a densely setose body (vs. glabrous in the mentioned genera) and the pronotum not possessing a median longitudinal carina (vs. presence of a longitudinal carina in the mentioned genera, which has a cell in Ceratolycus and Aplopteron).

Description of Male. General coloration and setation: Thorax, head, coxae, base of femora and basal third of elytra pale yellow, remainder of body brown, body densely setose throughout ( Fig. 1 ). Head: As long as wide, widest at eyes ( Fig. 1A ), hypognathous ( Fig. 1B ), frons posterior to antennal insertion strongly bulging ( Fig. 1A ), apparently concave behind eyes ( Fig.1A ).Eyeshemispherical,projectinganterolaterally, coarsely granulate ( Fig.1 ). Mouthparts: Maxillary palp apparently four segmented ( Fig. 1A ); terminal maxillary palpomere elongate, spatulate ( Fig.1A ). Antenna: With 11 antennomeres, from antennomere 3–10 distinctly serrate; densely setose, dorsoventrally flattened, inserted in gibbous prominence at anterior distal portion of head ( Fig. 1 ); if in resting position, longer than body ( Fig.1 );scape pyriform,approximate at base,subconical; pedicel ca. 4× shorter than scape; antennomeres 4–10 subequal, slightly increasing in length towards apex ( Fig. 1A ); antennomere 11 narrowly rounded apically ( Fig. 1A ). Thorax: Pronotum trapezoidal, transverse, lateral edges moderately developed ( Fig. 1 ), posteriorly apparently bearing a weakly developed median fovea, median longitudinal carina apparently absent ( Fig. 1A ). Elytra: Dehiscent, weakly ligulate, 3-costate, with short bristle-like setae throughout ( Fig. 1A ); costae weakly developed, subparallel; costa I discontinued medially, costae II+III subapically fused ( Fig. 1A ). Abdomen: With eight ventrites; ventrite 7 shallowly notched medially; ventrite 8 lanceolate, apically blunt, ca. 4× longer than ventrite 7, ca. one-fourth longer than tergite 9 ( Fig.1B ). Length(head +pronotum +elytra): 3.3mm. Width (across humeri): 0.7 mm.

Figures

Fig. 1. Falsoceratoprion fumagalliae, new genus and new species. A) Dorsal view,B) Ventral view.Scale bar = 0.5 mm.