Schizoptera (Odontorhagus) acuta, Leon, Stephanie & Weirauch, Christiane, 2016

Leon, Stephanie & Weirauch, Christiane, 2016, Scratching the surface? Taxonomic revision of the subgenus Schizoptera (Odontorhagus) reveals vast undocumented biodiversity in the largest litter bug genus Schizoptera Fieber (Hemiptera: Dipsocoromorpha), Zootaxa 4184 (2), pp. 255-284: 262-263

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Schizoptera (Odontorhagus) acuta

n. sp.

Schizoptera (Odontorhagus) acuta  n. sp.

( Figs 2View FIGURE 2, 5View FIGURE 5 A – L, and 7)

Diagnosis. Distinguished among species of Schizoptera (Odontorhagus)  by the elongate ovoid body shape, the dark brown coloration, the single, needle-shaped process of the subgenital plate (sVII), the flat right conjunctival appendage with a serrated ventral margin, the distinctly curving and sharp tip of the right paramere, and the large, uniformly round left paramere.

Holotype: COSTA RICA: Heredia: La Selva Biological Station , nr Puerto Viejo, 10.43086, -84.00647, 52 m, 16 Apr 1998, INBio-OET-ALAS, L/15/354, light trap, 1Ƌ (00109143) ( MNCR) (microscopic slide mount)  . PARATYPES: COSTA RICA: Alajuela  : Costa Rica: Alajuela San Antonio de los Chiles Hacienda R y R, 10.01667 ° N 84.21667 ° W, 30 Dec 1994, 1Ƌ (00091496) ( FSCA)GoogleMaps  . Heredia: La Selva Biological Station , nr Puerto Viejo, 10.43086°N 84.00647°W, 52 m, 16 Apr 1998, INBio-OET-ALAS, 1♂ (00109144) ( INBIO)GoogleMaps  ; 16 Apr 1998, INBio-OET-ALAS, 1♀ (00109166), 3♂ (00109167–00109169) (INBIO); 19 May 1998, INBio-OET-ALAS, 3♂ (00109153, 0 0 109156, 00109157) (INBIO).

Description. Male: length: 1.25–1.30 mm; body elongate ovoid. COLORATION: general coloration dark brown; fuscous patch covering less than 1/2 of wing membrane; Sc+C concolorous with remainder of hemelytron ( Fig. 2View FIGURE 2). SURFACE AND VESTITURE: as in subgeneric description. STRUCTURE: HEAD: flat in ventral view ( Fig. 2View FIGURE 2); eyes about 2/3 as wide as synthlipsis. THORAX: as in subgeneric description; hemelytron as in subgeneric description; M2 vein slightly curving anteriorly toward wing margin, anterior membranal cell wedgeshaped. ABDOMEN: as in subgeneric description; stVI without process on posterior margin; subgenital plate weakly asymmetrical; process of subgenital plate needle-shaped ( Fig. 5AView FIGURE 5 A – L); tVII rectangular; tVIII weakly trapezoidal and distinctly sclerotized; length of tVIII about 3/4 length of tVII. GENITALIA: py as in subgeneric description; rp as in subgeneric description with curving stem and sharp tip; lp as in subgeneric description, uniformly rounded in dorsal view ( Fig. 5AView FIGURE 5 A – L); rca flat and sickle-shaped with serrated ventral margin; lca small, about less than 1/4 length of rca, with hanging tubular process; vesica uniformly cylindrical and thin, forming a single coil; anophore forming asymmetrical tube with prominent dorsal fold.

Female: Unknown.

Distribution. Known from the northern region of Costa Rica, from the provinces of Alajuela and Heredia ( Fig. 7).

Etymology. Named for the needle-like process of the subgenital plate after the Latin “acutus” meaning sharpened.


Museo Nacional de Costa Rica


Florida State Collection of Arthropods, The Museum of Entomology