Trynocoris costaricaensis, Gorczyca & Taszakowski & Wolski & Chérot, 2022

Gorczyca, Jacek, Taszakowski, Artur, Wolski, Andrzej & Chérot, Frédéric, 2022, The genus Trynocoris Herring, 1976 (Heteroptera: Miridae: Cylapinae) is no longer monotypic: T. costaricaensis sp. nov. from Guanacaste, north-western Costa Rica, Bonn zoological Bulletin 71 (1), pp. 69-76 : 70-75

publication ID	https://doi.org/10.20363/BZB-2022.71.1.069
publication LSID	lsid:zoobank.org:pub:8A64E43A-B60B-4515-BA2B-70115B67CBF8
persistent identifier	https://treatment.plazi.org/id/03DD3C0A-FFD8-FF05-FC9C-3472FCD8FE3B
treatment provided by	Felipe
scientific name	Trynocoris costaricaensis
status	sp. nov.

Treatment

Trynocoris costaricaensis sp. nov.

urn:lsid:zoobank.org:act:17498A48-3133-4E24-98A9-FE9EDEE5DD38

Figs 1–2 View Fig View Fig , 3C View Fig , 4C–D View Fig

Diagnosis

The new species is similar to T. lawrencei ( Figs 3A–B View Fig , 4A–B View Fig ) but can be easily separated by the following character states: (1) Second antennal segment ( Fig. 1 View Fig ) of female not foliaceous and laterally flattened, but basally and medially cylindrical, apically slightly club-like, its 72 Jacek Gorczyca et al.

colour pattern more complex (basally brown, medially orange-brown to orange, apically yellow versus evenly red-brown except its dorsal and ventral black margins in T. lawrencei ). (2) Pilosity of second antennal segment ( Fig. 1 View Fig ) limited to long, suberect to erect setae, similar to setae of third and fourth antennal segments (versus pilosity of second antennal segment including scale-like setae and thick, simple setae in T. lawrencei ). (3) Absence of orange-red ‘ventral neck or ring’ easily visible under the eyes in T. lawrencei . (4) Labium reaching ovipositor ( Fig. 1B–C View Fig ) (versus in T. lawrencei reaching base of the abdomen in the female, but the pygophore in the male). (5) Body covered with setae curved, recumbent, barely widened apically, silvery bright under incident light ( Figs 1A View Fig , 3C View Fig ) (versus scale-like, whitish, dull, obviously widened apically in T. lawrencei ( Fig. 3A–B View Fig )). (6) In males, the left paramere apical process in dorsal view with apex curved toward the right side; right paramere apical process in dorsal view with a moderately developed medial spine on right lateral margin ( Fig. 2B, D View Fig ).

Etymology

The specific epithet refers to the country where the type locality is found, Costa Rica.

Type material

Deposited at the University of Kansas Natural History Museum ( KUNHM) ( Lawrence , Kansas, USA) .

Holotype

COSTA RICA • ♀; ’ COSTA RICA Guanacaste / Cacao Biological Station , 1050 m / 10°55′38″ N, 85°27′7″ W / 11 JUL 2000, leg. J.Ashe, R. Brooks, / Z.Falin CR1ABF00 100 / ex. fogging fungus covering log // SM0210321 / KUNHM-ENT’. GoogleMaps

Paratype

COSTA RICA • ♂, damaged and incomplete ; ’ COSTA RICA: Guanacaste / Cacao Biological Station , 1050 m / 10°55′38″ N, 85°27′7″ W / 11 JUL 2000, leg. J.Ashe, R. Brooks, / Z.Falin CR1ABF00 100 / ex. fogging fungus covering log // SM0210194 / KUNHM-ENT’ GoogleMaps .

Description

Female

Measurements (in mm). Body (in dorsal view): Length: 3.1, width 1.58. Head: Interocular distance (vertex width): 0.43, width of eye: 0.2, length of antennal segment I: 0.28, II: 0.63, III: 0.28, IV: 0.25. Pronotum: Medial length: 0.6, posterior width of disk: 1.33, length of lateral margin (between anterior and humeral angle): 0.6. Scutellum: Length (mesoscutum excluded): 0.53, length (mesoscutum included): 0.68, width: 0.73. Cuneus: Length: 0.3, width at base: 0.2.

Colouration ( Fig. 1A–C View Fig ). Body black. Head. Vertex (including narrow carina), frons and mandibular plates black. Clypeus and maxillary plates reddish brown. Eyes Trynocoris costaricaensis , new species from Costa Rica 73 grey. First antennal segment reddish with a yellowish ring at basal third. Second antennal segment basally brown, medially orange-brown to orange, apically yellow. Third and base of fourth antennal segment brown, the apex of fourth antennal segment black. Labium brown, the first segment apically yellow. Thorax. Pronotum and scutellum evenly black, pronotal collar reddish-brown. Metafemur wide, reddish-brown with dark reddish spots. Metatibia black with yellowish rings. Mesoscutum black, the lateral part brown. Clavus black, the apex yellow to orange. Endocorium black, its apex with a brownish median area and one yellowish spot at the inner corner. Exocorium brown with an elongate submedian longitudinal black stripe and an apical yellow spot. Embolium brown. Membrane grey. Cuneus orange-brown. Pro-, meso- and metapleuron black to reddish black, shining. Abdomen. Black.

Structure, texture and vestiture ( Fig. 1A–C View Fig ). Body oval to elongate-oval. Head. Declivous. Frons and vertex narrowly and shallowly punctate. Vertex posterior area slightly raised, narrowly carinate. Eyes relatively small, contiguous to the pronotal collar (partially hidden by the eyes laterally). The first antennal segment with relatively short, suberect setae, particularly apically. Second antennal segment bearing long, suberect to erect setae, longer apically, similar to setae of third and fourth antennal segments. The fourth antennal segment subdivided. Thorax. Pronotal collar very short. Pronotal lateral and posterior margins carinate. Pronotal disk punctate, the punctation wider and deeper than dorsal punctation of the head. Pronotal callosities barely visible. Mesoscutum wide, posteriorly convex and laterally marginate. Punctation of mesoscutum and scutellum similar to pronotal punctation ( Fig. 3C View Fig ). Claval vein raised. Clavus and corium with two different type of setae: one short, black, recumbent the other slightly longer and curved, recumbent, barely widened apically, silvery bright under incident light, in rows on the basal part of the corium. Cuneus elongate oval, oblique, with sparse, very short, stiff, black setae.

Abdomen. Thickened, not reaching the apex of membrane. Female genitalia. ( Fig. 4C–D View Fig ). Bursa copulatrix (= vagina, = genital chamber) totally membranous, devoid of sclerite. Sclerotized rings not visible in available specimens. Posterior wall not easily recognizable.

Male

Similar to female but smaller in size. The only male specimen is seriously damaged, headless and without trochan-

74 Jacek Gorczyca et al.

ters and femora. Thorax. Pronotum, mesoscutum and scutellum entirely black. Length of pronotum 0.50 mm, anterior margin 0.50 mm, lateral margins 0.65 mm, posterior margin 1.30 mm. Hemelytra black, covered with shining setae. Cuneus brown to dark brown tinged with orange at the base and along the external margin. Body ventrally chestnut to dark brown, coxae chestnut. Male genitalia ( Fig. 2 View Fig ). Left paramere hook-shaped; apical process thin in lateral view, broadened basally, narrowed toward the apex, apical process broad in dorsal view, its apex curved toward the right side; paramere body with a bundle of long, thick setae dorsally, paramere body when viewed laterally with inner margin weakly convex basally and nearly straight and inner margin strongly convex medially. Right paramere C-shaped; apical process thin and curved in lateral view, in dorsal view apical process broad, nearly ellipsoid, with the moderately developed process in the medial part of the right lateral margin. Aedeagus narrow, ductus seminis thin and long, endosoma membranous.

Distribution

Costa Rica.

Biology

Unknown, but the specimens of this species were collect- ed from a log covered with fungi. T. lawrencei was also collected in a similar habitat.

Acknowledgements. We would like to acknowledge Katrina L. Menard (University of Connecticut) for finding the specimens in the University of Kansas collection used in this study. We also want to thank the reviewers and the editor, Ximo Mengual (Zoologisches Forschungsmuseum Alexander Koenig, Bonn, Germany) for all the comments that improved this manuscript.