Utarametopus striatus Taszakowski & Kim, 2025

Taszakowski, Artur, Kim, Junggon & Jindra, Zdeněk, 2025, Further records of the tribe Gigantometopini (Hemiptera, Heteroptera, Miridae, Isometopinae) with descriptions of three new genera and five new species, Zootaxa 5725 (4), pp. 451-474 : 464-466

Utarametopus striatus Taszakowski & Kim , sp. nov.

( Fig. 8 .)

Diagnosis. Distinguished from U. linuspitti by the following combination of characters: body small, 2.65 in length, ocelli small, diameter 0.18x as vertex width, pronotum length 0.75x as basiflagellomere length; body mostly brown, flagellomeres pale brown, hemelytra with distinct whitish stripes; embolium in basal part pale brown, cuneus with a blurry, indistinct brown spot.

Description. Female. Body oval, length 2.65 ( Fig. 8A, B ). Coloration. Shades of brown with dark punctation ( Fig. 8A–C ). Head: vertex reddish; compound eyes pale reddish; frons between compound eyes pale reddish brown, below the eyes chestnut brown; clypeus chestnut brown ( Fig. 8C ); gena chestnut brown, posterior margin pale; scape and pedicel yellowish, flagellomeres pale brown ( Fig. 8A, B ); labium brown except for yellowish apical part of second segment and basal 2/3 of fourth one ( Fig. 8B ). Thorax: pronotum mostly brown, lateral margins pale, semitransparent, posterior margin pale; pronotal collar brown, callosite region chestnut brown, disc brown; exposed part of mesoscutum chestnut brown; scutellum brown, with whitish apex; thoracic pleura chestnut brown; ostiolar peritreme whitish, evaporative area whitish in antero-ventral part, brown in central and pale brown in posterior part; hemelytra bicolored ( Fig. 8A ); clavus brown with whitish stripe along claval vein; endocorium brown with large whitish spot and whitish stripe along R+M vein; embolium whitish; hypocostal lamina pale with brown spot in anterior part; cuneus brown, basal inner corner and lateral margin whitish; membrane brown; coxae pale; metacoxa tinged with red; profemora yellowish, tinged with red; meso- and metafemora missing; protibiae brown with two whitish bands; protarsi brownish. Abdomen: reddish pale brown. Surface and Vestiture. Body shiny, densely and deeply punctate; except glabrous head, covered densely with, pale setae ( Fig. 8A–C ); along R+M and costal veins row of punctures, embolium and cuneus impunctate, antennae with sparse, erect setae; pronotal collar with row of setae; scutellum punctate only in the midline ( Fig. 8E ); legs with short, adherent, pale-brown setae. Structure. Head: flattened, hypognathous, distinctly higher than width across eyes, dorsally not extending to level of highest point of pronotum; vertex flat, nearly at same level as eyes level; compound eyes 0.45x as high as head high; vertex wide, 0.37x as head width; ocelli small, spaced apart, touching compound eyes ( Fig. 8A, C ); fovea antennalis positioned at middle of the ventral margin of compound eye and apex of clypeus; scape 0.5x as long as distiflagellomere, thick; pedicel slightly arcuate, thinner in basal part, in distal part as thick as scape; flagellomeres linear, thin; labium long, reaching fifth abdominal segment. Thorax: pronotum trapeziform, midline length equal to 1/2 posterior width; lateral margin carinate, posterior margin weakly sinuate with a small backwards-pointing process in middle, posterior angles weakly angled; pronotal collar broad; calli slightly marked, disc slightly convex; exposed part of mesoscutum long; scutellum tumid, large, 0.73x as long as pronotal length, baso-medially clearly depressed; scent gland evaporative area triangular; ostiolar peritreme small, swollen, directed upward and anteriorly; hemelytron lateral margin slightly rounded; cuneus broad, inner margin straight; membrane with two cells; tarsi three-segmented; claws without a subapical tooth. Abdomen: elongate, exceeding apex of cuneus.

Measurements. Body. Length, clypeus-apex of membrane: 2.65; width 1.15. Head. Length: 0.21; width, including compound eyes: 0.51; vertex width: 0.19; eye dorsal width: 0.19; height in frontal view: 0.80. Antenna. Total length: 1.57; length of scape: 0.10, pedicel: 0.54, flagellomere I: 0.74, flagellomere II: 0.19. Labium. Total length: 1.43; length of segment I: 0.36; II: 0.38; III: 0.34; IV: 0.41. Pronotum. Mesal length: 0.55; posterior maximal width (straight): 1.10. Mesoscutum. Mesal length: 0.17. Scutellum. Anterior width: 0.50; mesal length: 0.40. Hemelytron. Length: 1.90; claval commissure length: 0.37; outer embolial margin length (straight): 1.30; outer cuneal margin length (straight): 0.31; cuneus width: 0.33.

Etymology. From Latin striâtus (‘grooved, fluted, striated’).

Type material. Holotype ( ♀): ’ INDONESIA: \ SULAWESI UTARA, \ Dumoga-Bone N.P. \ March 1985 \\ Plot A. M,T.(raised) \ 20-27/iii.85’ ( NHM).

Distribution. Indonesia, North Sulawesi, Bogani Nani Wartabone National Park (formerly known as Dumoga Bone National Park). ( Fig. 3R ).

Biology. Unknown.

Remarks. Both species described above are similar to each other. Apart from the fact that they have a clear difference in body size (3.37 vs 2.65), they differ in the size of the ocelli, the length and width of the pronotum and the coloration. The sum of these features led us to describe each individual as a separate species.

Figures

FIGURE 3. Distribution of Gigantometopini (updated from Taszakowski et al. 2020). Yellow arrows and letters – described species, white arrows and numbers – unknown or undescribed Gigantometopini. Astroscopometopus gryllocephalus (Miyamoto, Yasunaga & Hayashi, 1996) (A); A. gryllocephalus and Kohnometopus fraxini Yasunaga, 2005 (B); Astroscopometopus formosanus (Lin, 2004) and Isometopidea lieweni Poppius, 1913 nec (C); Kohnometopus yangi (Lin, 2005) (D); A. formosanus (E); Gigantometopus coronobtectus Kim, Taszakowski & Jung, 2021 (F); I. lieweni (I); Astroscopometopus hesaraghattaensis Yeshwanth, Chérot & Henry, 2021 (G); Isometopidea viraktamathi Yeshwanth, Chérot & Henry, 2021 (H); Planicapitus brunneus sp. nov. (J); Gigantometopus rossi Schwartz & Schuh, 1990 (K); Malaymetopidea maculata gen. et sp. nov. (L); Kohnometopus yasunagai Taszakowski, Kim & Masłowski, 2022 (M); Gigantometopus schuhi Akingbohungbe, 2012 (N); Bruneimetopus simulans Taszakowski, Kim & Herczek, 2020 (N); Megalofaciatus gibbosus Taszakowski, Kim & Herczek, 2021 (N); Planicapitus luteus Taszakowski, Kim & Herczek, 2020 (N, P); Megalofaciatus foliotibialis Taszakowski, Kim & Herczek, 2021 (O); Sulawesimetopus henryi Herczek, Gorczyca & Taszakowski, 2018 (R); Utarametopus linuspitti sp. nov. (R); Utarametopus striatus sp. nov. (R); Wallacemetopus anteriotenebrosus gen. et sp. nov. (R). Kohnometopus sp. (1); Isometopidea sp. (2); Unknown Gigantometopini (3–5); Gigantometopus spp. (5).

FIGURE 8. Utarametopus striatus Taszakowski & Kim, sp. nov., holotype, female. Dorsal (A), lateral (B) and anterior (C) view; head and pronotum in antero-lateral view (D); scutellum (E); foretarsus (F); pretarsal structure, ventral view (G).