Monasavuhygia fodina, Brailovsky & Barrera, 2022

Brailovsky, Harry & Barrera, Ernesto, 2022, Description of two new micropterous species of Monasavuhygia Brailovsky, 1996 from the Fiji and Solomon Islands and a key to species (Heteroptera: Coreidae: Colpurini), Zootaxa 5091 (3), pp. 495-500 : 496-498

Monasavuhygia fodina sp. nov.

( Figs. 2 , 5 , 8)

Type locality. Fiji Islands, Vanua Levu .

Description. Holotype female. Dorsal coloration. Head pale chestnut orange; neck darker; antennal segments I-III pale chestnut orange, IV dark chestnut with basal and apical joint paler; pronotum dark yellow, punctures dark chestnut orange, and medial sulcus dark brown; scutellum pale chestnut orange; hemelytra pale chestnut orange with yellow reflections; connexival segments pale chestnut orange with posterior margin dark yellow; dorsal abdominal segments pale chestnut orange, punctures darker, and surface scattered with yellow reflections. Ventral coloration. Head dark brown, with dark yellow longitudinal stripe on posterior third; rostral segments I-IV pale yellowish orange; pro-, meso-, and metasternum dark brown; pro-, meso-, and metapleura pale chestnut orange with yellow reflections on acetabulae, and irregular black longitudinal stripe across midline; punctures dark chestnut orange; coxae shiny chestnut; trochanters shiny chestnut orange; femora pale yellow with three irregular rings, one dark chestnut orange near anterior third, the other two pale orange, one near posterior third and the other at distal third; tibiae pale orange with two pale yellow rings; tarsi pale yellow; anterior and posterior lobes of metathoracic peritreme, and evaporative area dark brown, with dark yellow reflections on the anterior lobe; abdominal sterna II–VII and genital plates pale yellowish orange, punctures darker.

Structure. Body stout, ovate. Head. Longer than wide, pentagonal, dorsally convex; antenniferous tubercle truncated, unarmed; antennal segment II the longest, IV the shortest, and I longer than III; ocelli absent; postocular tubercle hemispheric, protuberant; rostrum long, reaching anterior margin of abdominal sternite VII; rostral segments II and IV subequal and longest than I and III which are subequal. Thorax. Pronotum wider than long, bilobate; anterior lobe longer than posterior lobe; anterolateral margins convexly rounded; collar wide; frontal angles produced forward as small conical protuberance; humeral angles weakly globose, not exposed; pronotal disc large, raised, almost rounded; callus at each side, behind anterior margin, and separated along midline by a longitudinal depression located mesally; upper margin of pro-, meso-, and metapleura strongly convex, visible dorsally. Legs unarmed; tibiae cylindrical, sulcate. Scutellum wider than long, with prominent, globose basal tubercle at each side; apex rounded. Hemelytra. Micropterous; clavus and corium fused, reduced to small pads; hemelytral membrane reduced to widely separated small expansion. Abdomen. Dorsally exposed; disc with two prominent tubercles or expansions at midline, one at posterior margin of segment IV, the second at posterior margin of V; connexivum higher than tergites; connexival margins entire, posterior angle of each not raised or swollen; abdominal sternite VII entire, without plica or fissure. Genital plates. Valvulae VIII large, outer margin convex, inner margin slightly depressed, and concave near posterior third; laterotergite VIII short, spiracle visible; laterotergite IX squarish, larger than laterotergite VIII (figs, 5, 8). Integument. Body rather dull; acetabulae polished; thorax, abdominal sterna, and genital plates strongly punctate. Head, pronotum, scutellum, hemelytra and abdominal segments clothed with short, decumbent, silver, bristle-like setae; abdominal sterna scattered with long erect setae; antennal segments and legs covered with long and short erect setae.

Measurements (in mm). Female. Body length 7.70; head length 1.58; width across eyes 1.27; interocular width 0.75; interocellar width 0.31; preocular distance 1.05; postocular distance 0.26; length antennal segments: I 1.00; II 1.70; III 0.95, IV 1.10; length rostral segments: I 1.20; II 1.35; III 1.70; IV 1.70; pronotum total length 1.30; maximum width across humeral angles 2.10: scutellum length 0.60; width 0.95; maximum width of abdomen between segments IV and V 4.00.

Male. Unknown.

Type material. HOLOTYPE female: FIJI ISLANDS: Vanua Levu , Ndelaikoro, 800 m, 27-X-1977, col. G. Kuschel ( BPBM).

Etymology. From the Latin “ fodina ” meaning pit or mine.

Discussion. Differential diagnosis. Monasavuhygia fodina sp. nov., represents the second species of the genus and like, M. cordata , is distributed in Fiji the Islands. In M. fodina , the postocular tubercles are hemispheric and protuberant, the head length is less than 1.60 mm, the hemelytral membrane is short and reduced to a small flap, and the anterolateral margins of the pronotal disc lack a tubercle near the middle. In M. cordata , the postocular tubercles and hemelytral membrane are absent, the head longer than 1.83 mm, and the anterolateral margins of the pronotal disc with a short tubercle near the middle ( Fig. 2 ).

Distribution. Fiji Islands.

Figures

FIGURES 1–3. Dorsal view of Monasavuhygia spp. 1, M. cordata Brailovsky, 1996 (female). 2, M. fodina sp. nov. (female). 3, M. incola sp. nov. (female).

FIGURES 4–6. Female genital plates in caudal view of Monasavuhygia spp. 4, M. cordata Brailovsky, 1996. 5, M. fodina sp. nov. 6, M. incola sp. nov. FIGURES 7–9. Female genital plates in lateral view of Monasavuhygia spp. 7, M. cordata Brailovsky, 1996. 8, M. fodina sp. nov. 9, M. incola sp. nov.