Phthiarella guanaya Brailovsky and Barrera, 2025

Phthiarella guanaya Brailovsky and Barrera , new species

( Figs. 31‒32)

Diagnosis. Like P. femorata (Breddin) with abdominal sterna III–IV entirely metallic green, and coxae, trochanters and femora yellow. In P. guanaya sp. nov., the anterior lobe of pronotal disk and midline of corium has a wide yellowish to yellowish orange transverse fascia absent in P. femorata in which the pronotum and corium are entirely metallic green.

Description. Holotype female. Body length 20.18. Head length 2.60; width across eyes 2.40; interocular distance 1.37; interocellar distance 0.61; preocular distance 1.47; length antennal segments: I, 3.98; II, 4.43; III, 3.15; IV 6.28; pronotum: total length 2.95; width across humeral angles 6.25; scutellum: length 2.50; width 2.75.

Dorsal coloration. Head metallic green with short yellow spot behind each ocelli; antennal segments I to III black with metallic green and bluish green reflections, IV dull black; pronotum with collar, calli, and anterolateral borders metallic green; anterior lobe with wide shiny orange transverse fascia, not reaching the anterolateral borders; posterior lobe metallic bluish; scutellum black with metallic bluish reflections; clavus black with metallic bluish reflections, and apex of claval commissure shiny orange; corium black with metallic bluish reflections, and wide shiny orange transverse fascia below claval commissure, reaching costal borders; hemelytral membrane dark brown with metallic bluish green reflections; connexivum black with metallic green reflections; dorsal abdominal segments III–V orange, VI–IX black with metallic green reflections. Ventral coloration. Head metallic green with short yellow spot at each side of midline near collar; rostral segment I metallic green, II–III dark orange, IV black; pro-, meso-, and metasternum, inner border of acetabulae, and anterior and posterior lobe of metathoracic peritreme yellowish orange; pro-, meso-, and metapleura metallic green; coxae, trochanters and femora yellowish orange; tibiae and tarsi black; abdominal sterna III–VII, and genital plates metallic green.

Structure. Head. Rostrum reaching anterior border of abdominal sternite IV. Thorax. Humeral angles slightly exposed, acute, directed outward.

Male. Unknown.

Etymology. This species is named after the type locality, Guanay.

Type locality. Bolivia, La Paz, Guanay .

Material examined. Type material. HOLOTYPE female, BOLIVIA, La Paz, Guanay , X–XI–1992, L. E. Peña ( USNM) . PARATYPE: 1 female, BOLIVIA, Rio Cristal Mauu , 50 mi NE Cochabamba, 2–XII–1949, L. E. Peña ( UNAM) .