Guapinannus minutus, Frankenberg & Knyshov & Hoey-Chamberlain & Weirauch, 2021

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 : 273-274

Guapinannus minutus , sp. n.

( Figs 3 , 9 )

Holotype. Female. COSTA RICA: Heredia: Sarapiqui Co.: P.N. Braulio Carrillo, 16 Km SSE La Virgen, 10.26784°N 84.084°W, 1050 m, 20 Feb 2001 – 23 Feb 2001, INBio-OET-ALAS, 1♀ ( UCR _ ENT 00014609 ) ( INBIO).

Etymology: Named for the small body size after “minutus” Latin for small.

Diagnosis: Recognized by the small size (1.14 mm), inflated tip of scutellum (white arrow), well-defined proximal part of Cu (black arrow), and dark coloration (female-based) ( Fig. 3 ).

Description: Female: Total body length 1.14 mm; length from posterior margin of pronotum to posterior wing margin 0.90 mm; greatest width across pronotum 0.52 mm; greatest width across forewings 0.71 mm. General coloration: mix of pale and darker brown or reddish brown. Vestiture: Dorsum with dense 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 slightly concave; pits on pronotum medium-sized, evenly distributed; scutellum in dorsal view abruptly narrowed to tip, tip inflated. Forewing: With outline elongate oval; membrane contributing about one third of forewing length, posterior distal margin rounded, vein-tracing areoles on proximal part of wing absent; C+Sc uniformly fairly broad; 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 3 times as long as wide; part of An1 and Cu forming posterodistal margin of tc of similar width as other veins; distal margin of rc1, rc, and tc cells double s-shaped; rc2-3 almost triangular; cub almost reaching wing margin; dc1 with basal portion fairly narrow and elongate. Legs: Claws long. Genitalia: As in generic description.

Male: Unknown.

Collecting method and habitat: Unknown.

Figures

FIGURE 3. Dorsal habitus of Guapinannus graziae, sp. n., G. minutus, sp. n., G. orbiculatus, sp. n., G. plurilobus, sp. n., G. policis, sp. n., G. robustus, sp. n., and G. sinuosus, sp. n. Arrows and stars indicate diagnostic features listed in the species diagnoses.

FIGURE 9. Known distributions of Guapinannus spp.