Ctenomelynthus venustulus Brailovsky 2018, sp. nov.
Creators: name: Brailovsky, Harry
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Coreidae
Ctenomelynthus
Ctenomelynthus venustulus

description: Ctenomelynthus venustulus Brailovsky sp. nov.
(Figs. 17, 22–23, 26)
Description. Holotype male. Dorsal coloration. Head, including neck, black, with space between eye and ocelli and narrow longitudinal stripe running between ocelli to apex of tylus, yellow; antennal segment I dark castaneous orange with base black, segments II–IV dark castaneous orange; pronotum shiny brick red, densely tinged with metallic bluish green reflections; callar region brick red; scutellum brick red, tinged with metallic bluish green reflections and apex yellow; clavus and corium brick red, tinged with metallic bluish green reflections; hemelytral membrane brown with basal third darker; connexivum yellow; dorsal abdominal segments dark brown, scent glands scars IV–V and V–VI yellow. Ventral coloration. Head black, with buccula and longitudinal stripe close to each eye yellow; rostral segment I brown, segments II–IV dark castaneous (apex of IV black); pro-, meso-, and metasternum shiny brick red; metathoracic peritreme dark brown with anterior lobe orange; fore and middle legs with coxae and trochanters shiny black to reddish brown, femur, tibiae and tarsi dark castaneous orange; hind leg with coxae and trochanter shiny black to reddish brown, femora bicolorous, dorsal surface shiny dark reddish brown, and ventral surface shiny black; tibiae and tarsi dark castaneous orange; abdominal sterna III–VII castaneous orange with pleural margin yellow; genital capsule dark brown with yellow spot lateral to midline.
Structure. Thorax: triangular process of pronotum small, slightly acute, and extending to anterior border of scutellum; humeral angles rounded. Male genital capsule. Posteroventral edge slightly concave with lateral margins rounded (Fig. 26). Parameres. Figs. 22–23.
Female. Unknown.
Measurements. Male. Body length 14.57; head length 1.55; head width across eyes 2.28; interocular distance 0.95, preocular distance 0.87; interocellar distance 0.35; antennal segments: I 3.45, II 3.15, III 2.70, IV 6.06; pronotum: total length 2.65, maximum width across humeral angles 3.16; scutellum: length 1.90, width 1.20.
Type material. HOLOTYPE male: SURINAME: Paramaribo, 1-VII- 1958. P. H. van Doesburg (RMNH). PARATYPES. SURINAME: 1 male, Paramaribo, Botanical Garden, VI-1945, Gerskes (UNAM); 1 male Jaghust, 12-VII- 1938, Gerskes (RMNH).
Etymology. From the Latin, “ venustulus ”, meaning pretty.
Discussion. Resembling C. sanchezi in having head ventrally black with buccula and longitudinal stripe running close to each eye yellow. In C. venustulus Brailovsky sp. noV., hind femora are bicolored, with dorsal surface shiny dark reddish brown and ventral surface shiny black; fore and middle trochanters shiny dark reddish brown to dark castaneous brown; the fore and middle femora dark castaneous orange; the calli shiny dark castaneous orange; dorsal abdominal segments III–VI dark brown with scars of scent glands IV–V and V–VI yellow. In C. sanchezi the hind femora are unicolorous, entirely shiny black to shiny reddish brown; fore and middle trochanters shiny pale yellow to pale yellowish orange; fore and middle femora pale yellow to pale yellowish orange; calli yellow; and dorsal abdominal segments III–VI pale orange (posterior margin of VI black).
description: Published as part of Brailovsky, Harry, 2018, The genus Ctenomelynthus (Hemiptera: Heteroptera: Coreidae: Acanthocephalini), with the description of three new species and key to the known species, pp. 571-582 in Zootaxa 4420 (4) on pages 579-581, DOI: 10.11646/zootaxa.4420.4.7, http://zenodo.org/record/1455467