Moronopelios nigritus, Brailovsky & Barrera, 2016

Brailovsky, Harry & Barrera, Ernesto, 2016, New taxa of Neotropical Acanthocerini (Hemiptera: Heteroptera: Coreidae), Acta Entomologica Musei Nationalis Pragae 56 (2), pp. 547-555 : 553-554

Moronopelios nigritus sp. nov.

( Figs 3 , 7, 9–10 )

Type locality. Brazil, Amazonas, Fonte Boa, 02°31′S, 66°80′W, 112 m a.s.l (cf. ERWIN 2000).

Type material. HOLOTYPE: J, BRAZIL: AMAZONAS: ʻAmazon, Fonteboa, [D.] Hahnel [lgt.]ʼ ( NHRS). PARATYPE: ♀, PERU: LORETO PROVINCE: nr. jct. [= near junction of] Rio Marañon and Ucayali, 4.8°S 73.5°W, 6.–20.viii.1994, P. E. Skelley [lgt.] ( UNAM).

Description. Male (holotype). Dorsal coloration. Head yellow with tylus (base yellow), juga, ocellar tubercle, upper border of antenniferous tubercle, and interocular space including the neck black; antennal segments I–III black and IV pale yellowish orange; pronotum black with collar, posterolateral margins, posterior margin, and two longitudinal stripes lateral to midline and running from posterior border of calli to posterior margin yellow, only with posterior border black; scutellum black, apex dark yellow; clavus dark to reddish brown; corium black to reddish brown with two yellow rectangular marks, one above midline, the other near apical margin; membrane pale brown with basal angle black and metallic green reflections; connexival segment III dark brown, IV–VI yellow with posterior angle dark brown, and VII dark yellow with posterior half dark brown; dorsal abdominal segment II pale brown, III–VI shiny orange, and VII black with anterior angle shiny orange.

Ventral coloration. Head yellow with wide transverse pale brown quadrate mark near midline; rostral segments I, III–IV dark castaneous, segment II pale castaneous orange; pro-, meso-, and metasternum pale brown; propleura black to reddish brown with collar, acetabula, and posterior margin yellow; meso- and metapleura black to reddish brown with acetabula and posterior margin yellow; anterior and posterior lobe of metathoracic scent gland auricle black; fore and middle leg dark castaneous brown; hind leg dark castaneous brown with apical third of femur shiny yellowish orange; abdominal sternite III black with posterior margin yellow; sterna IV–VI pale yellow, and VII black to dark castaneous brown, with basal angle pale yellowish orange; genital capsule dark brown. Paramere simple, elongate, apically rounded ( Figs 9–10 ).

Female. Habitus and color similar to male holotype. Head ventrally with basal half yellow and apical half black; rostral segments I–IV dark castaneous brown; connexival segments VIII–IX, dorsal abdominal segments VIII–IX, abdominal sternite VII and genital plates black.

Measurements (male / female; mm). Total body length 20.04 / 21.50. Head: length 1.48 / 1.48; width across eyes 2.72 / 2.79; interocular width 1.37 / 1.36; interocellar width 0.50 / 0.50; length of antennal segments: I – 5.39 / 5.76; II – 4.40 / 4.34; III – 3.59 / 3.34; IV – 5.76 / 5.82. Pronotum: length 3.72 / 4.15; width across humeral angles including the spiny projection 5.70 / 6.01. Scutellum: length 2.35 / 2.48; width 2.10 / 2.10.

Differential diagnosis. Moronopelius nigritus sp. nov. ( Fig. 3 ), resembles M. vespiformis Brailovsky, 1988 ( Fig. 5 ), in having the antennal segments I–III black; abdominal sternite III black with posterior margin yellow; meso- and metasternum black to dark reddish brown; and posterior margin of metapleura yellow. In M. nigritus the pronotum is black to reddish brown with the following areas yellow: collar, posterolateral margins, posterior margin, and two longitudinal stripes lateral to midline; and posterior margin of pro- and mesopleura yellow. In M. vespiformis the pronotum is black with only the collar yellow, and the posterior margin of pro- and mesopleura black.

Etymology. The species epithet is a Latin adjective, nigritus (-a, -um; = blackish) referring to the black coloration of three basal antennal segments.

Distribution. Only known from Brazil (Amazonas) and Peru.

Figures

Figs 1–5. Habitus in dorsal view. 1 – Guilbertocoris guianensis gen. & sp. nov., 2 – Moronopelios flavoantennatus sp. nov., 3 – M. nigritus sp. nov., 4 – M. polystoides Brailovsky, 1988, 5 – M. vespiformis Brailovsky, 1988.

Figs 6–14. 6–8 – male genital capsule, caudal view: 6 – Guilbertocoris guianensis gen. & sp. nov., 7 – Moronopelios nigritus sp. nov., 8 – M. polystoides Brailovsky, 1988. 9–14 – paramere: 9–10 – M. nigritus sp. nov., 11–12 – M. polystoides, 13–14 – G. guianensis gen. & sp. nov.