Schizoptera (Odontorhagus) exacta, 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: 270-271

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Schizoptera (Odontorhagus) exacta

n. sp.

Schizoptera (Odontorhagus) exacta  , n. sp.

( Figs 3View FIGURE 3, 5View FIGURE 5 A – L and 7)

Diagnosis. Distinguished among species of Schizoptera (Odontorhagus)  by the slightly concave head, the large eyes, the lobed process of the posterior margin of sVII, the distinctly asymmetrical subgenital plate, and the notched lateral process of the subgenital plate.

Holotype: COSTA RICA: Heredia: La Selva Biological Station, nr Puerto Viejo , 10.43086 ° N 84.00647 ° W, 52 m, 19 May 1998, INBio-OET-ALAS, light trap, 1Ƌ (00109155) ( MNCR) (microscopic slide mount)GoogleMaps  . PARATYPES: COSTA RICA: Heredia: La Selva Biological Station, nr Puerto Viejo , 10.43086 ° N 84.00647 ° W, 52 m, 0 2 Feb 1998, INBio-OET-ALAS, 1♀ (00109233)GoogleMaps  , 1♂ (00109234) (INBIO); 16 Feb 1998, INBio-OET- ALAS, 2♂ (00109176, 00109177) (INBIO); 16 Apr 1998, INBio-OET-ALAS, 1♂ (00109175) (INBIO). PANAMA: Canal Zone: Barro Colorado Island Co.: Barro Colorado Island , 9.15472 ° N 79.84806 ° W, 14 Jan 1959, H. S. Dybas, 1♂ (00090790) ( FMNH)GoogleMaps  ; 16 Jan 1959, H. S. Dybas, 1♀ (00090807) (FMNH); 21 Jan 1959, H. S. Dybas, 1Ƌ (00090817) (FMNH). Barro Colorado Island, 9.16667 ° N 79.85 ° W, 13 Jan 1959, H. S. Dybas, 1Ƌ (00090739) ( FMNH)GoogleMaps  . Cocle: Antón District Co.  : Panama: Cocle Rio Indio Lodge , N El Valle, 8.6008 ° N 80.1303 ° W, 24 Feb 2012GoogleMaps  - 27 Feb 2012, 5Ƌ (00091591, 0 0 0 91664, 0 0 0 91680, 0 0 0 91592, 00091612) (FSCA).

Description. Male: length: 1.39–1.42 mm; body broadly ovate; COLORATION: general coloration light brown; fuscous patch covering less than 1/2 of wing membrane; Sc+C distinctly lighter than remainder of hemelytra ( Fig. 3View FIGURE 3). SURFACE AND VESTITURE: as in subgeneric description. STRUCTURE: HEAD: slightly concave in ventral view ( Fig. 3View FIGURE 3); eyes about 2/3 as wide as synthlipsis. THORAX: as in subgeneric description; hemelytron as in subgeneric description; M2 vein distinctly curving anteriorly toward wing margin, anterior membranal cell wedge-shaped. ABDOMEN: as in subgeneric description; stVI with a strout, tab-like process on posterior margin; subgenital plate distinctly asymmetrical, almost forming a right angle with posterior margin of lateral process; process of subgenital plate thumb-shaped, with an notch on anterior margin, almost forming “lock and key” with process of sVI ( Fig. 5KView FIGURE 5 A – L); tVII rectangular; tVIII weakly trapezoidal and sclerotized; length of tVIII about 3/4 length of tVII. GENITALIA: py as in subgeneric description; rp as in subgeneric description with a long, narrow stem and blunt tip; lp as in subgeneric description, with two visible lobate dorsal processes; rca narrow and thin, mostly obscured by vesica; lca with three finger-like processes ( Fig. 5KView FIGURE 5 A – L); vesica uniformly thin and tubular, almost forming three coils; anophore forming an asymmetrical tube with a prominent dorsal fold forming a hollow slit in dorsal view ( Fig. 5KView FIGURE 5 A – L).

Female: length 1.42 mm; general habitus as in male.

Distribution. Known from one locality in the Heredia province in northern Costa Rica, and two localities in Panama: the Canal Zone and the southern province of Coclé ( Fig. 7).

Etymology. Named for the “lock and key” appearance of the process of sVI and the notched margin of the lateral process of the subgenital plate after the Latin “exactus” meaning exact.


Museo Nacional de Costa Rica


Field Museum of Natural History