Anasa cotopaxiana Brailovsky & Unam 2017, sp. nov.
Creators: name: Brailovsky, Harry
name: Unam
Publisher: name: Zenodo
Year: 2017
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Anasa
Anasa cotopaxiana

description: Anasa cotopaxiana sp. nov.
(Figs 3–4, 20) Type material. HOLOTYPE: ♀, ECUADOR: COTOPAXI: Calupina, vii.1987, G. Onore (PUCE). PARATYPES: ECUADOR: COTOPAXI: Calupina, vii.1987, 1 J, G. Onore (UNAM). PICHINCHA: Tandapi, 17.vi.1965, 1 J, L. E. Peña (BMNH).
Description. Female (holotype). Dorsal coloration (Fig. 3). Head dark yellowish ochre, punctures and ocellar tubercle reddish brown; antennal segment I pale castaneous, segment II pale castaneous with tubercles pale reddish brown and apical third dark brown, III black with basal and apical joint pale yellow to yellowish white, and IV black with basal joint pale yellow to yellowish white and apical third dark castaneous; pronotal disk dark yellowish ochre, punctures and humeral plate including the humeral angles reddish brown; anterior border and anterolateral borders (except humeral plate) pale yellow; scutellum pale yellow, punctures reddish brown; basal half of clavus pale castaneous, punctures reddish brown, and outer margin black; apical half of clavus black except for the dark ochre claval commissure; corium pale castaneous with a black irregular spot near endocorium; costal margin entirely pale castaneous; hemelytral membrane dark brown; connexivum pale castaneous with a large and irregular black spot close to the middle third of each segment; dorsal surface of abdominal segments black.
Ventral coloration (Fig. 4). Head pale yellowish with middle third black; rostral segments pale yellowish castaneous (apex of segment IV brown); thorax with a wide longitudinal, creamy yellow stripe that covers the acetabula and the anterior and posterior lobes of metathoracic ostiolar peritreme, and is delineated on the outer sides by a narrow black stripe; pro-, meso-, and metasternum black; pro-, meso-, and metapleura pale yellowish castaneous, punctures reddish brown; legs yellow, femora and tibiae with scattered pale castaneous orange granules; abdominal sterna III–VI with wide longitudinal, creamy yellow stripe, delineated on the outer sides by a narrow black irregular stripe; abdominal sternites III and IV with a black narrow stripe interrupted near the posterior margin of sternite IV; abdominal sterna laterally pale castaneous orange; pleural margin pale castaneous orange with a large and irregular pale brown spot close to middle third; abdominal sternite VII pale castaneous orange with a wide brown spot at middle third; gonocoxae I and paratergites VIII and IX brown with borders pale castaneous.
Structure. Body slightly flattened dorsoventrally. Head. Antenniferous tubercles unarmed; rostrum reaching posterior border of mesosternum. Thorax. Anterior angle with short conical acute projection; anterolateral margins finely crenulate, with humeral borders smooth; humeral angles slightly expanded laterally; posterolateral borders with outer third crenulate and inner third smooth; posterior border straight; triangular process absent; legs unarmed.
Measurements (mm). Total body length 13.38. Head length 1.28; width across eyes 1.64; interocular distance 0.92; interocellar distance 0.40; preocular distance 0.77; antennal segments: I – 1.84, II – 2.16, III – 1.95, IV – 1.92. Pronotal length 2.52; maximum width across humeral angles 5.48. Scutellar length 1.84; width 2.12.
Male. Color and habitus similar to female holotype. Thorax and abdominal sterna III–VII with a wide longitudinal, creamy yellow stripe that covers the acetabula and anterior and posterior lobes of metathoracic peritreme and is delineated on the sides by wide castaneous stripe; pleural margins creamy yellow; middle third of abdominal sternite III–VII with a narrow interrupted brown stripe. Genital capsule shiny black with posteroventral edge creamy yellow; posteroventral edge with deep “U”-shaped concavity at middle third (Fig. 20).
Measurements (mm). Total body length 11.42. Head length 1.32; width across eyes 1.56; interocular distance 0.78; interocellar distance 0.40; preocular distance 0.73; antennal segments: I – 1.72, II – 2.00, III – 1.80, IV – 1.74. Pronotal length 2.32; maximum width across humeral angles 4.44. Scutellar length 1.20; width 1.36.
Differential diagnosis. The new species is similar to A. discifera, A. flavovittata, and A. crinita, by having the thorax and abdominal sterna with a wide longitudinal, creamy yellow stripe that covers the acetabula and the anterior and posterior lobe of metathoracic ostiolar peritreme and is delineated on the outer sides by a narrow black or by wide castaneous orange stripe, and with the antenniferous tubercles and femora unarmed. In A. cotopaxiana, the antennal segment III is black with basal and apical joints pale yellow to creamy yellow; antennal segment IV black with basal joint pale yellow to creamy yellow and apical third dark castaneous; pronotal disk, scutellum, clavus and corium mostly dark yellowish ochre to pale yellow or pale castaneous with only the punctures and an irregular spot near the endocorium black; anterior angle of pronotal disk with short conical projection; clavus bicolorous, anterior half pale castaneous with inner border black and posterior half black; hemelytral membrane dark brown; and male genital capsule shiny black with posteroventral edge creamy yellow. In A. discifera, the antennal segment III is pale yellow, and IV with basal half pale brown and apical half pale yellow with apex brown; hemelytral membrane pale brown with veins darker; corium pale yellow without irregular black spot near endocorium. Anasa flavovittata, like A. cotopaxiana has the anterior margin of pronotal disk with an acute projection, on both the antennal segment III is pale yellow, and segment IV entirely reddish brown or castaneous orange; clavus and corium uniformly pale yellowish castaneous; humeral angles expanded, directed outward; and hemelytral membrane pale brown with dark brown discoidal spots, irregularly scattered. Anasa crinita, like A. discifera and A. flavovittata, has a uniformly pale yellowish castaneous clavus.
Etymology. The species epithet is the latinized adjective cotopaxianus (- a, - um) given after the type locality, Cotopaxi.
Distribution. Ecuador.
description: Published as part of Brailovsky, Harry & Unam, 2017, The genusAnasa from Ecuador with description of three new species and key to the Ecuadorian species (Hemiptera: Heteroptera: Coreidae), pp. 61-71 in Acta Entomologica Musei Nationalis Pragae 57 (1) on pages 67-69, DOI: 10.1515/aemnp-2017-0058, http://zenodo.org/record/5316504