Voconia trinidadensis, Castillo & Rédei & Weirauch, 2022

Castillo, Stephanie, Rédei, Dávid & Weirauch, Christiane, 2022, Pseudocetherinae (Hemiptera: Reduviidae) revisited: phylogeny and taxonomy of the lobe-headed bugs, European Journal of Taxonomy 788 (1), pp. 1-95 : 81-82

Voconia trinidadensis sp. nov.

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Figs 1–2 , 8 , 10 , 19

Diagnosis

One of two New World species of Voconia . Recognized by the finely granulose head and prothorax; proepimeron with protuberance on posteroventral margin; pronotum dark with contrasting yellow posterior margin; corium dark with anteroproximal yellow stripe, posteromedial and distal white spots; labial segment I in lateral view not surpassing posteroventral eye margin.

Etymology

Named after the collecting locality of the holotype in Trinidad. A proper noun with the Latin adjectival suffix ‘- ensis ’ meaning ‘belonging to’. To be treated as an adjective.

Type material

Holotype TRINIDAD AND TOBAGO • ♀; Trinidad; J.W. Chapman leg.; USI: AMNH_PBI 00170700 ; AMNH.

Description

Female ( Figs 8 , 10 )

BODY LENGTH. 10.5 mm; macropterous.

COLORATION. Head: dark brown; maxillary plates light brown; postocular region with pale patches adjacent to lateral ocellar margin; labium lighter than head, yellow. Thorax: as head; posterior pronotal lobe with posterior margin lighter; scutellum dark with contrasting yellow apical spine. Hemelytron (abducted): clavus reddish-brown with distal white stripe; corium reddish-brown with anteroproximal yellow stripe, posteromedial and distal white spots; membrane dark with white V-shaped marking along R and M veins; membranal veins R and M proximally white. Legs: yellow. Abdomen: dark brown, dorsal laterotergites brown medially, with black stripe adjacent to yellow lateral margin.

INTEGUMENT AND VESTITURE. Head and pronotum: finely granulose with sparse, long macrosetae interspersed among dense pubescence; interocular region with two pairs of macrosetae paramedially; antennifer with short lateral setigerous tubercle; morphologically ventral surface of labium with dense, short macrosetae. Thorax: anterolateral angles of pronotal collar with macrosetae; scutellar lateral carinae with long setation. Hemelytron: corium with sparse, long setation. Legs: posterior row of protuberances on mid and hind femora with three large spines on distal half and many small spines. Abdomen: ventral surface pubescent.

STRUCTURE. Head: elongate, about 1.4 times as long as wide; anteocular region about one third of head length, about as long as postocular region (measured to anterior margin of neck); postocular region in dorsal view about as long as eye, lateral margins gently rounded; pedicel about 1.3 times length of head width; maxillary plates ellipsoidal, adjacent to and longer than clypeus; apices of maxillary plates in dorsal view directed straight; clypeus in dorsal view wider than maxillary plates; clypeal apex round, not narrowed; interocular glabrous markings anterolaterally curved, joined at interocular sulcus paramedially; interocular sulcus in dorsal view curved and smoothly rounded anteriorly; eye width in dorsal view wider than synthlipsis; eye reaching ventral head margin in lateral view; ventrolateral swelling of buccula without lateral protrusion that surpasses buccular margin, flat margin; labial segment I in lateral view straight, reaching posteroventral eye margin; morphologically dorsal surface of labial segment II nearly straight, about 0.6 times length of segment I. Thorax: pronotal collar in dorsal view narrow medially with anterolateral angles short, projected forward; anterior pronotal lobe about 0.5 times length of posterior pronotal lobe, lateral margins almost straight; glabrous markings on pronotum thin, not deeply depressed; median apodeme depression of pronotum deep, elongated transversely; scutellar spine long, subhorizontal; anteriad-directed process of prosternum smoothly rounded, without paramedial lobes; anterior margin of stridulitrum not elongated into protuberance; proepimeron with acute protuberance on posteroventral margin. Legs: fossula spongiosa of fore leg present, absent or vestigial on mid leg. Abdomen: anterior margin of terga prominently carinulate, posterior margin of terga III–VI weakly carinulate; terga II and III with paired prominent longitudinal carinae, reaching about two-thirds of tergum III; medial region between carinae on tergum II coarsely granulose.

Distribution ( Fig. 19 )

This species is only known from the type locality, Trinidad.

Figures

Fig. 1. Strict consensus tree resulting from equal weighting analysis. Jackknife values over 51 are reported for tree one of eight.

Fig. 2. Tree resulting from implied weighting analysis using K = 12 with characters unambiguously optimized. Symmetric resampling values over 51 are represented for trees obtained with K = 3, K = 6, K = 9, and K = 12 analyses. Characters and character states are described in pp. 11–22. Specimens not to scale.

Fig. 8. Dorsal habitus of holotypes of Voconia Stål, 1866 species with distribution: purple = Afrotropical region, green = Australasian region, blue = Neotropical region, pink = Oriental region. Scale bars = 3 mm.

Fig. 10. Lateral habitus of species of Voconia Stål, 1866. Scale bars = 3 mm.

Fig. 19. The distribution of species of Voconia Stål, 1866 in Central America.