Guapinannus bierigi Wygodzinsky, 1951

Frankenberg, Sarah, Knyshov, Alexander, Hoey-Chamberlain, Rochelle & Weirauch, Christiane, 2021, Taxonomic revision of Guapinannus Wygodzinsky, 1951 (Hemiptera: Schizopteridae), with description of 19 new species, Zootaxa 4958 (1), pp. 261-286 : 268-269

Guapinannus bierigi Wygodzinsky, 1951

( Figs 1 , 9 )

Diagnosis: Recognized by the mid-sized body length (1.45 mm), part of An1 and Cu forming posterodistal margin of tc more pronounced than other veins, and the great distance of cub from the margin of the wing. Most similar to G. falcis , sp. n., that is also known from Costa Rica, but distinguished by the much greater distance of cub from the wing margin compared to G. falcis , sp. n.

Re-description: Female: Total body length 1.45 mm, greatest width across pronotum 0.67 mm. General coloration: mix of pale and darker brown or reddish brown. Vestiture: Dorsum with sparse setae, setae short; setae on posterior margin of forewing long. Structure: Head: Eye almost half as high as head; muscle scars large. Thorax: Anterior pronotal margin concave, posterior margin straight; pits on pronotum medium-sized, evenly distributed; scutellum in dorsal view abruptly narrowed to tip, tip pointed. Forewing: With outline broad anteriorly; membrane contributing about one third of forewing length, posterior distal margin squarish, vein-tracing areoles on proximal part of wing absent; C+Sc broad, wider at widest part of wing; distal process of R pronounced; An1 wing organ on corium absent (as in all females); rc1 about 3 times as long as wide, slightly wider anteriorly; rc about 4 times as long as wide; tc about three times as long as wide; part of An1 and Cu forming posterodistal margin of tc more pronounced than other veins; distal margin of rc1, rc, and tc cells s-shaped; rc2-3 almost triangular; cub removed from wing margin; dc1 with basal portion fairly narrow and elongate. Legs: Claws long. Genitalia: As in generic description ( Fig. 1 ).

Male: Unknown.

Specimens examined: Holotype: COSTA RICA: Limon: Guapiles , 10.2167°N 83.7833°W, 268 m, 05 Feb 1946 – 13 Feb 1946, A. Bierig, 1♀ ( AMNH _ IZC 00150354 ) ( AMNH).

Figures

FIGURE 1. Guapinannus bierigi, female holotype. A: Head with rostrum extended forward and pronotum showing muscle scars on anterior lobe, dorsal view. B: Left forewing, dorsal view. C-D: Abdomen dorsum and ventrum, respectively.

FIGURE 9. Known distributions of Guapinannus spp.