Phelister annulatus, Caterino & Tishechkin, 2020

Caterino, Michael S. & Tishechkin, Alexey K., 2020, Recognition and revision of the Phelister blairi group (Histeridae, Histerinae, Exosternini), ZooKeys 1001, pp. 1-154 : 1

27. Phelister annulatus sp. nov. Figs 17C, D , 18C, D , Map 11

Type material.

Holotype male: " Brazil: Pará, Belém, Utinga (IPEAN) 1°27'S, 48°26'W [-1.45, -48.4333] Piège d’interception. x.1986" / "Caterino/Tishechkin Exosternini Voucher EXO-03176 (CEMT). Paratypes (29): Brazil: Amapá, Serra do Navio (0.98, -52.00), 5/1/91-5/14/91, FIT, EXO-03177 (CHND, 1ex.); Mato Grosso, Sinop (-11.8167, -55.4833), 6/12/85-6/24/85, FIT, EXO-03175 (CHND, 1ex.); Pará, Altamira - Marabá, km 18 (-3.15, -52.05), 11/22/83, Ss. cad. de rat. (CHND, 2ex.); Pará, Carajás (Serra Norte) (-6.0667, -50.2), May 1985, FIT (CHND, 3ex.); Pará, Tucuruí (-3.75, -49.667), 6/19/86-7/7/86, FIT, EXO-03179 (CHND, 1ex.); Pará, Tucuruí (-3.75, -49.667), June 1985, FIT (CHND, 2ex.); Ecuador: Orellana, Est. Cientifica Yasuní, mid. Rio Tiputini (-0.675, -76.4), 6/24/99-6/26/99, Dead fish trap, late stage, C. Carlton, LSAM 0045449 (LSAM, 1ex.); French Guiana: Régina, Rés. Natur. des Nouragues, Camp Inselberg (4.0833, -52.6833), 11/9/10, FIT, SEAG, EXO-03184 (CHND, 1ex.); Régina, Rés. Natur. des Nouragues (4.0378, -52.6725), 11/3/09, FIT, SEAG, EXO-03183 (CHND, 1ex.); Régina, Rés. Natur. des Nouragues, Camp Inselberg (4.0833, -52.6833), 1/25/11, FIT, SEAG (CHND, 1ex.); Belvédère de Saül, point de vue (3.6228, -53.2094), 11/31/2010, FIT, SEAG (CHND, 2ex.); Montagne des Chevaux (4.7167, -52.4), 9/21/08, FIT, SEAG, EXO-00369 (CHND, 1ex.); Montagne des Chevaux (4.7167, -52.4), 12/16/08-01/18/09, FIT, SEAG (AKTC & CHND, 8ex.); Montagne des Chevaux (4.7167, -52.4), 5/16/09, FIT, SEAG, EXO-03181 (CHND, 1ex.); Montagne des Chevaux (4.7167, -52.4), 7/11/09, FIT, SEAG (CHND, 2ex.); Peru: Loreto, Iquitos - Nauta rd., km 58, Rio Itaya (-4.2563, -73.4675), 120 m, 5/5/09-5/9/09, FIT, next to entrance into Eciton burchelli statary bivouac in a hollow tree, A.V. Petrov, EXO-00368 (AKTC, 1ex.).

Diagnostic description.

Length: 2.40-2.56 mm (avg. 2.44 mm); width: 1.89-2.25 mm (avg. 2.08 mm). Body elongate, sides almost subparallel, dark rufescent to piceous, with conspicuous ground punctation; frons broadly impressed along midline, with sparse small punctures intermingled with ground punctation; supraorbital stria present, detached at sides; frontal stria complete, fine; epistoma raised along lateral and anterior margins; labrum emarginate, apical margin subcarinate; mandibles lacking basal teeth; prescutellar impression semicircular, slightly wider than scutellum; pronotal disk with doubly punctate, with numerous secondary punctures intermingled with ground punctation, denser toward sides; median pronotal gland openings distinctly annulate, just> 1/2 behind anterior margin; marginal pronotal stria complete along sides and front; submarginal pronotal stria complete, deeply impressed, close to margin, barely curving inward at front; elytron with single complete epipleural stria; outer subhumeral stria present at base and apex, briefly interrupted at middle in most individuals; inner subhumeral stria fragmentarily present at middle, rarely nearly complete; dorsal striae 1-4 complete, the 4th arched to the sutural, 5th obsolete in basal fourth, sutural stria complete; all elytral striae weakly crenulate; pygidia densely doubly punctate, with fine and secondary punctures uniformly intermixed; prosternum emarginate at base, striae divergent at base, sinuate to, and meeting at, apex; prosternal lobe short, with complete marginal striae; mesoventrite produced, with complete marginal stria continued at sides by postmesocoxal stria, which ends behind outer corner of mesocoxa; mesometaventral stria angulate at middle, reaching anterior third of mesoventrite, continued at sides by lateral metaventral stria to middle of metacoxa; metaventrite with ground punctation denser toward midline (particularly in males), with secondary punctures interspersed near metacoxae; 1st abdominal ventrite with secondary punctures along anterior margin, lateral stria incomplete along inner margin of metacoxa; protibia weakly expanded, outer margin with ~ five spinose denticles; meso- and metatibiae also weakly expanded, with rather conspicuous marginal spines; ventral setae of all tarsi flattened (those of protarsus, particularly). Male: basal piece 1/3 length of tegmen; tegmen with sides subparallel in basal 1/3, abruptly narrowed to long, downturned apical portion; medioventral process absent; median lobe short, thick.

Etymology.

This species name refers to the annulate pronotal punctures (though this character is common to many species in the group).

Distribution.

Most specimens of this species have been collected in northeastern Brazil and French Guiana. However, it is also known from Amazonian Ecuador and Peru, as well as Mato Grosso, Brazil.

Remarks.

This species can be distinguished by the following combination of characters, pronotal disk largely doubly punctate (secondary punctures are intermingled throughout, though slightly denser toward the sides), which contrasts with the elytra, which exhibit ground punctation only, frontal stria complete, lateral submarginal pronotal stria close to margin, mesometaventral stria very strongly angulate forward, and the outer subhumeral stria interrupted at the middle, but otherwise complete.

Figures

Map 11. Collecting records for Phelister morbidus (circles), P. annulatus (squares), and P. sphaericus (stars).

Figure 17. A, B Phelister morbidus: A dorsal habitus B ventral habitus C, D P. annulatus: C dorsal habitus D ventral habitus E, F P. sphaericus: E dorsal habitus F ventral habitus G, H P. geijskesi: G dorsal habitus H ventral habitus.

Figure 18. Male genitalia A, B Phelister morbidus: A aedeagus, dorsal B aedeagus, lateral C, D P. annulatus: C aedeagus, dorsal D aedeagus, lateral E, F P. sphaericus: E aedeagus, dorsal F aedeagus, lateral G, H P. geijskesi: G aedeagus, dorsal H aedeagus, lateral.