Catorhintha bicornigera, Brailovsky & Barrera, 2010

Brailovsky, Harry & Barrera, Ernesto, 2010, Five new species of Catorhintha (Hemiptera: Heteroptera: Coreidae: Coreinae: Coreini) from Mexico and South America, Acta Entomologica Musei Nationalis Pragae 50 (1), pp. 59-74 : 65-66

publication ID	https://doi.org/ 10.5281/zenodo.5323998
DOI	https://doi.org/10.5281/zenodo.5345546
persistent identifier	https://treatment.plazi.org/id/3E1587A1-FFC0-4F5E-AF83-9B9FFD53FC03
treatment provided by	Felipe
scientific name	Catorhintha bicornigera
status	sp. nov.

Treatment

Catorhintha bicornigera View in CoL sp. nov.

( Figs. 2 View Figs , 11–12 View Figs , 21 View Figs )

Type locality. Brazil, Roraima, environs of Caucalandia, 10°32′S 62°48′W.

Type material. HOLOTYPE: J, ‘ BRAZIL, Roraima, vic. Caucalandia , 160–350 m, 10°32′S- 62°48′W, 30.x.1991, J. MacDonald’ ( MEMC) GoogleMaps . PARATYPES: 1 J, ‘ VENEZUELA, Territorio Federal, Amazonas, San Carlos de Rio Negro , 7–13.xi.1982, A. Chacon y G.Yepez Gil’ ( UNAM) ; 1 ♀, same label data as holotype ( MEMC) GoogleMaps ; 1 ♀, ‘ PERU, Madre de Dios, Rio Tambopata , res., 30 air km, SW Puerto Maldonado, 290 m, 16–20.xi.1979, J. B. Heppner’ ( UNAM) .

Description. Male. Head. Antenniferous tubercle armed exteriorly with a small spine, convoluted and almost touching the antennal plate; antennal segment I longer than 1.15 mm.

Genital capsule. Posteroventral margin broadly concave; middle third with short mesial bilobed plate ( Fig. 2 View Figs ). Paramere ( Figs. 11–12 View Figs ).

Dorsal color. Head, pronotum and scutellum dull yellow with reddish brown punctures; antennal segments I and II dark black to reddish brown, III pale yellowish orange, and IV dark orange; inner face of jugae, ocellar tubercle, postocular tubercle, head basally, frontal angles and anterolateral borders of pronotum black; apex of tylus shiny castaneous orange; middle third of pronotal disk with dull yellowish longitudinal stripe; apex of scutellum pale yellow; clavus and corium dark orange, punctures reddish brown, and claval and corial veins dull yellow; hemelytral membrane yellowish translucid, veins darker and basal angle partially black; connexival segments II to IV black with upper margin yellow, and V to VII black with anterior third yellow; dorsal abdominal segments black.

Ventral color. Yellowish white; pro-, meso-, and metapleura and abdominal sterna III to VII with a prominent black discoidal spot; abdominal sterna III and IV with an additional black spot lateral to midline and close to anterior margin; mesosternum and metasternum yellow and laterally black; rostral segments I to IV, and middle third of head black; anterior and posterior lobe of metathoracic peritreme yellowish white; coxae yellow with external face brownish orange; trochanters yellow with apex brownish orange; femora pale yellowish orange with basal joint and distal third black; tibiae pale yellowish orange with basal and apical third black; tarsi pale yellowish orange with apical third of each tarsus black; pleural abdominal borders II to IV yellow and V to VII black with basal third yellowish white; abdominal spiracles yellowish white; genital capsule yellowish white with basal third black.

Integument. Head dorsally, pronotum, scutellum, clavus, and corium deeply punctate, with uniformly small punctures; connexivum impunctate; head ventrally, thorax, abdomen, male genital capsule and female genital plates with small to large punctures; mesosternum impunctate; dorsal surface almost glabrous; ventral surface glabrous, except middle third of mesosternum and metasternum, abdominal sterna III to VII, and genital capsule with erect silver hairs; antennal and rostral segments, and legs clothed with short to long decumbent to erect silver hairs.

Female. Habitus and color similar to male holotype.

Genitalia. Fissura reaching anterior margin of abdominal sternite VII; plica not visible; gonocoxae I raised, triangular, inner margin not overlapping, upper margin rounded.Antennal segments I, II, and IV dark reddish brown and III pale yellowish orange; connexival segments VIII and IX black with anterior angle yellow; dorsal abdominal segments VIII and IX black; female genital plates yellowish white; clavus and corium dull yellow, punctures reddish brown, and claval and corial veins pale yellow.

Measurements. First male, then female (mm). Head length 1.40, 1.64; width across eyes 2.00, 2.00; interocular distance 1.00, 1.00; interocellar distance 0.50, 0.50; preocular distance 0.80, 0.96; length of antennal segments: I – 1.24, 1.16; II – 1.72, 1.64; III – 1.38, 1.52; IV – 2.44, 2.56. Pronotal length 2.68, 2.84; width across frontal angles 1.52, 1.52; width across humeral angles 3.04, 3.20. Scutellar length 1.28, 1.36; width 1.32, 1.40. Body length 12.20, 12.30.

Differential diagnosis. This species resembles C. semialba and C. elongatula in having the antenniferous tubercle armed exteriorly with a convoluted spine, thorax and abdominal sterna III to VII yellowish white with prominent black discoidal spot, and connexival segments VI and VII bicolorous, usually black with anterior third yellow.

In C. bicornigera sp. nov., the femora are bicolorous, pale yellowish orange with basal joint and distal third black, external spine of antenniferous tubercle shorter, not touching antennal plate, and antennal segment I and rostral segments I to IV black to dark reddish brown. In C. semialba the femora are entirely yellow, external spine of antenniferous tubercle elongate, touching or extending beyond antennal plate, antennal segment I bicolorous with outer face reddish brown, and inner face dark yellow, and rostral segments I to IV yellow (apex of IV black). In C. elongatula the femora are orange castaneous with or without red spots, the external spine of antenniferous tubercle shorter and not convoluted, and paramere as in Figs. 13–14 View Figs .

Etymology. From the Latin adjective, ‘ bicorniger ’, meaning ‘bearing two horns’, referring to the peculiar shape of male genital capsule; adjective.

Distribution. Brazil (Roraima), Peru and Venezuela.