Aphelonotus schuhi, Kment & Rédei, 2020

Kment, Petr & Rédei, Dávid, 2020, Aphelonotus schuhi sp. nov., the first species of the family Pachynomidae from Puerto Rico (Hemiptera: Heteroptera), Zootaxa 4748 (2), pp. 382-388 : 383-384

publication ID

https://doi.org/10.11646/zootaxa.4748.2.10

publication LSID

lsid:zoobank.org:pub:34BBE9E2-E483-4507-869C-19F9B3124B20

DOI

https://doi.org/10.5281/zenodo.3704896

persistent identifier

https://treatment.plazi.org/id/03B087B0-FFD0-FFEE-62C8-5068A82EFCA3

treatment provided by

Plazi

scientific name

Aphelonotus schuhi
status

sp. nov.

Aphelonotus schuhi sp. nov.

( Figs 1–9 View FIGURES 1–2 View FIGURES 3–9 )

Type material. Holotype: ♂ (macropterous), ‘ PUERTO RICO: Naguabo / El Yunque Nat. Forest, S part / La Sabana recr. area 5.6km N of / Río Blanco at rd.PR191, 18°16.1‘N, / 65°47.6‘W, 510 m, 21.vi.-2.vii.2016; / Deler, Fikáček & Seidel lgt. PR03 ’ [printed] // ‘ flight intercept trap in / a sparse rainforest at the river / bank’ [printed] // ‘ ♂ ’ [printed] // ‘ APHELONOTUS / SCHUHI / sp. nov. / det. KMENT & RÉDEI 2018 ’ [printed, red label] (coll. National Museum, Praha, Czech Republic). The holotype is mounted on card, the detached pygophore and left paramere are placed in a plastic microvial with glycerol, attached to the same pin. GoogleMaps

Description. Colour ( Figs 1–2 View FIGURES 1–2 ). Head (except apex), pedicellites, thorax and hemelytra dark brown; mandibular plates, clypeus, rostrum, scape, legs and abdomen of paler shades of brown; basi- and distiflagella whitish; spines of ventral surface of protibia black.

Structure. Morphological characters as in generic description provided by Schuh et al. (2015). Exoskeleton highly similar to that of A. taino Schuh, Weirauch & Grillo, 2015 ( Cuba) and A. xenos Schuh, Weirauch & Grillo, 2015 ( Costa Rica) (see Diagnosis of A. xenos species-group above); only the characters diagnostic for the new species are listed here:

Only macropterous morph known ( Figs 1 View FIGURES 1–2 , 3 View FIGURES 3–9 ). Protibia with two long and stout subapical spines, one shorter and blunt ( Fig. 6 View FIGURES 3–9 : sas), second longer and tapering. Parameres bisinuous in dorsal view ( Figs 7, 9 View FIGURES 3–9 ), shaft ( Figs 7–9 View FIGURES 3–9 : s) bent, outer face with prominent protuberance between shaft and blade ( Fig. 8 View FIGURES 3–9 : p), blade with prominent inner angle ( Fig. 8 View FIGURES 3–9 : ia) subproximally, without subapical tooth ( Figs 7–9 View FIGURES 3–9 ), apex laterally flattened ( Figs 8, 9 View FIGURES 3–9 ), widely rounded in anterior view ( Fig. 8 View FIGURES 3–9 ); blades of parameres divergent in rest, apices not crossing each other ( Fig. 7 View FIGURES 3–9 ).

Measurements. Total body length (from apex of clypeus to apex of membrane, in mm)—3.31; body length from the pronotal collar to the apex of the membrane—2.75; head: width across eyes—0.48, interocular distance—0.30, ocellus diameter—0.04, interocellar distance—0.14, width across neck (behind compound eyes)—0.34; antenna: length of basipedicellite (= proximal secondary segment of pedicel)—0.46; pronotum: length (from anterior margin of pronotal collar to posterior margin of pronotum along midline)—0.55, width (between humeral angles)—1.03.

Differential diagnosis. Aphelonotus schuhi sp. nov. is morphologically highly similar to A. taino and A. xenos . The new species shares the presence of the long and stout, apically blunt subapical spine on protibia ( Fig. 6 View FIGURES 3–9 : sas) with A. xenos (see Schuh et al. 2015: figs 3, 19B), while this spine is missing in A. taino . As in other species of Aphelonotus (cf. Schuh et al. 2015), the identification of these three species is heavily based on the highly characteristic shape of their parameres: in A. schuhi the parameres articulated on the genital capsule in resting position are bisinuate in dorsal view ( Figs 7, 9 View FIGURES 3–9 ) (simply arcuate in both A. taino and A. xenos , cf. Schuh et al. 2015: fig. 3), its blade lacks preapical tooth ( Fig. 8 View FIGURES 3–9 ) (shared with A. taino ; A. xenos has a preapical tooth on blade, cf. Schuh et al. 2015: fig. 4), and the apex of the paramere is laterally flattened ( Figs 8, 9 View FIGURES 3–9 ) and widely rounded in anterior view ( Fig. 8 View FIGURES 3–9 ) (pointed in both A. taino and A. xenos , cf. Schuh et al. 2015: fig. 4).

The length of the holotype of A. schuhi sp. nov., measuring from the anterior margin of the pronotal collar to the apex of the membrane, is 2.75 mm, smaller than the known specimens of A. taino (2.93–3.24 mm) or A. xenos (3.15–3.46 mm) (cf. Schuh et al. 2015).

Etymology. The new species is dedicated to Randall T. Schuh (American Museum of Natural History), the guru of contemporary heteropteran systematics and the first author of the excellent monograph of the genus Aphelonotus ( Schuh et al. 2015) .

Habitat. The holotype was collected using a flight interception trap in a sparse rainforest at the river bank (M. Fikáček, pers. comm.) (see Fig. 10 View FIGURES 10 ).

Distribution. Puerto Rico (this paper).

Kingdom

Animalia

Phylum

Arthropoda

Class

Insecta

Order

Hemiptera

Family

Pachynomidae

Genus

Aphelonotus