Sicamus OPITZ, 2019

Opitz, Weston, 2019, Descriptions of new genera and new species of Western Hemisphere checkered beetles (Coleoptera, Cleroidea, Cleridae), Linzer biologische Beiträge 51 (2), pp. 959-1076 : 1019-1020

Sicamus OPITZ nov.gen.

Type species: Sicamus suprus OPITZ. By present designation.

D i a g n o s i s: Within Peloniinae members of Sicamus have an antennal morphology that most closely resembles that of Tanycorpus OPITZ. However, these genera differ in tarsal spur formula and in the configuration of male antennomeres 8 and 9. Members of Sicamus have a tibial formula of 1-2-1 whereas in Tanycorpus specimens the formula is 0-2-2. In Tanycorpus male specimens antennomeres 8 and 9 have a short collateral branch, which is not the case in Sicamus specimens.

Synapotypic characteristics: Synapotypic character states have not been found.

D e s c r i p t i o n: Size: Length 5.0 mm; width 2.0 mm. Form: Oblong, hind body subovate, about 3 times longer than broad. Vestiture: Dorsum profusely vested with long pale setae, antennal funicle moderately setose, capitulum profusely vested with microsensilla, elytra abundantly vested with long pale setae. Head: Cranium subquadrate, profusely indented with setiferous punctures; frons narrower than eye; gula large, trapezoidal, sutures converge, post-gular plate with two setose processes; labrum shallow, broadly incised distally; mandible, body stout, anterior dens subacuminate, medial and posterior dens moderately developed, penicillus well developed; maxilla, terminal palpomere digitiform; labium, terminal palpomere digitiform; eyes large, coarsely facetted, ocular notch not very deep; antenna capitate, comprised of 10 antennomeres, antennomere 8 longer than funicle, funicular antennomeres become shorter to capitulum. Thorax: Pronotum oblong; dorsolateral carina extends to anterior limit of pronotal tubercle, posteriorly carina extends to pronotal posterior angles where confluent with pronotal hem; disc slightly convex and coarsely punctated; side margins with slightly-developed tubercle; prointercoxal process linear; pronotal projections acuminate, do not approximate prointercoxal process; each elytral disc sculptured with 10 striae of asetiferous punctures, epipleural fold prominent, narrowly extended to elytral apex, elytral anterior margin not carinate; legs, prothoracic femora not swollen; anterior margin of protibia with 2 small spines; tibial spur formula 1-2-1, tarsal pulvillar formula 3-3-3, unguis with basal denticle. Abdomen: Pygidium scutiform; aedeagus as in Fig. 256.

D i s t r i b u t i o n: KnownfromBrazil.

E t y m o l o g y: Sicamus is an anagram of the checkered beetle genus Muisca SPINOLA. Gender masculine.

Figures

Figs 255-261: Aedeagi; (255) Pujoliclerus tuxtlas; (256) Sicamus suprus; (257) Sirpa acara; (258) Sirpa latiflava; (259) Topainca pachacutii; (260) Pelonium atrigonatium; (261) Ordinis taxis.