Medium to large size (6–10 mm), oval-elongate, covered with short, adpressed pubescence. Front striated and vertex grooved. Pronotum trapeziform, narrowed to head, strongly punctate with lateral margins rounded; calli smooth; collar shiny and well defined. Scutellum rough and punctate, shiny and swollen. Hemelytra smooth, covered with short, adpressed pubescence.

Atahualpacoris and Calocorisca (Carvalho 1985, 1986) are morphologically similar genera. Atahualpacoris has the body elongate with the lateral margins parallel or nearly so, and the scutellum is convex and raised at the middle, with its apex acute, slightly curled upward. The hemelytral membrane length is longer than in Calocorisca (Atahualpacoris length of hemelytra 1.7 to 1.9 times length of membrane; Calocorisca length of hemelytra 2.2 to 2.5 times length of membrane). Antennal segment I is covered by short setae mixed with common hairs, whereas in Calocorisca this segment is covered by erect setae longer than the width of the segment.

Distinguished from other species of Atahualpacoris by large size (8.0 to 9.5 mm) with general color dark brown to black; hemelytra dark brown; two large yellowish spots on corium; cuneus with yellowish spots near cuneal fracture on inner basal angle and at apex; hemelytral membrane darkened with many small, rounded, scattered, pale spots; absence of black spot at base of larger cells of hemelytral membrane; male genitalia: endosoma with three spicules of different size and shape, acute distally; longer spicule with many flat spines on ventral surface; left paramere sickle shaped, apex broad and twisted, sensorial lobe crenulate.

Holotype male (Figs 1–3); measurements (Table 1).

Figure 1. 

Atahualpacoris henryi sp. n. male, holotype (dorsal view).

Figure 2. 

Atahualpacoris henryi sp. n. male, holotype (ventral view).

Figure 3. 

Atahualpacoris henryi sp. n. male, holotype (lateral view).

Body shiny, parallel sided, length ca. 2.5 times width, dorsal vestiture with short, semi-erect hairs; general color dark brown to black with spots and small marks yellowish. Head declivous, shiny, broader than long, weakly convex dorsally; in dorsal view dark brown with yellowish stripes; frons with longitudinal median groove; eyes prominent, contiguous to collar, occupying most of head in dorsal view; vertex with transverse sulcus; antennal vestiture with short pilosity, less than width of segment; antennal fossa above jugal-loral suture dark brown; antennal segment I shorter than width of vertex between eyes, bearing short setae mixed with common hairs, yellowish with extreme base and lateral spots black; segments II–IV black, extreme apex yellow, with whitish adpressed pilosity; relative lengths of antennal segments in ascending order II < I < III< IV; eyes black; rostrum brown with light brown spots, reaching mesosternum; lateral margins of clypeus, posterior area of juga and loral-jugal suture dark brown; epipharynx brown at base. Pronotum dark brown, trapeziform, two times wider than long, vestiture with sparse, short, pale hairs; collar yellowish; callus black, swollen, shiny, smooth with lateral sides slightly marginate; disc of pronotum convex, shiny, distinctly rugose and punctate with irregular yellowish spots; humeral angles slightly depressed; pronotum ventrally with xypho of prosternum yellowish with brown spots; propleura dark brown, shiny, rugose and punctate with sparse, adpressed hairs; mesosternum dark brown, slightly rugose and punctate; mesepisternum and metaepisternum dark brown; ostiolar peritreme brown with median lobe developed and evaporative area yellowish; coxae and femora with semierect hairs shorter than width of segment; coxae black with yellowish spots; posterior margins of median coxae yellowish; femora black with scattered yellowish spots; tibiae brown with scattered yellowish spots, parallel rows of tiny black spines along entire length, and vestiture of common semi-adpressed pale hairs mixed with dark bristles shorter or equal to width of segment; length of hind tibia more than 3.5 times length of hind tarsus; tarsi brown, darkening to apex. Scutellum triangular, rugose, shiny, slightly convex, and raised at middle, with apex acute, slightly curled upward; general color dark brown with two lateral irregular stripes, apex yellow; clothed with sparse semi-erect hairs. Hemelytron dark brown, elongate, subparallel, lateral margins slightly rugose with short, pale, adpressed pubescence mixed with dark hairs; clavus black; two large, somewhat rounded spots on corium, and small patches throughout embolium yellowish; claval-corial suture and embolio-corial suture impunctate; embolium delimited along entire length; cuneus slightly longer than wide with small spots on outer margin, broad spot near cuneal fracture, spot on inner basal angle and apex yellowish; hemelytral membrane opaque, glabrous and slightly rugose, darkened with many scattered, small, pale spots. Abdomen brown with yellowish areas, vestiture with adpressed or semi-erect hairs.

Male genitalia (Figure 4). Endosoma (Figure 4A) with membranous lobes covered with tiny teeth (Figure 4Ad), and three thick spicules of different size and shape, acute distally; longer process narrow, rising below secondary gonopore, ventral surface with many flat spines (Figure 4Aa); second process shorter, broad, sickle-shaped (Figure 4Ad); third process larger at base, narrowed to acute apex (Figure 4Ac); secondary gonopore large, distinct, with rim wide and ribbed. Left paramere (Figure 4B) C-shaped in dorsal aspect, twisted toward broad apex; sensorial lobe relatively stout and weakly crenulate. Right paramere (Figure 4C) reduced, sensorial lobe relatively stout.

Figure 4. 

Atahualpacoris henryi sp. n. male, holotype A endosoma a longer spicule with many flat spines b shorter sickle-shaped spicule c third spicule larger at base d membranous lobes with tiny teeth B left paramere C right paramere.

Female. Similar to males in structure and vestiture. Measurements (Table 1).

Colombia (Tolima).

Unknown.

Named in honor of Dr. Thomas J. Henry (National Museum of Natural History, Washington D.C.) for his great contributions to the knowledge of Heteroptera, especially the family Miridae.

Holotype male, Colombia,Tolima, Cajamarca, La Colosa, C. Andina, Armadilha Luminosa, Febrero 2013, Benevides Lopes J.L.(ICN- Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá) Paratypes: (Same locality of holotype): female, IX/2012; male, 4 females, XI/2012; 3 males, female, XII/2012; male, 2 females I/ 2013; 4 males, female II/ 2013 (UFVB- Universidade Federal de Viçosa, MG, Brazil).