Guapinannus trilobus, 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 : 280-283

Guapinannus trilobus , sp. n.

( Figs 4 , 7 , 9 )

Holotype. Male. MEXICO: Veracruz: San Andres Tuxtla Co. : 18.52303°N 95.15453°W, 1109 m, 05 Jun 2016, Manuel Barrios , 1♂ ( UCR _ ENT 00128210 ) ( UCR).

Paratypes: MEXICO: Veracruz: Road to Ruiz Cortinez , 18.5229°N 95.15441°W, 1114 m, 05 Jun 2016, R . S. Anderson, 1♂ ( UCR _ ENT 00125950 ), 2♀ ( UCR _ ENT 00125951 ) ( UCR) .

Etymology: Named for the three lobes on the anophoric process after “trilobus” Latin for three lobes.

Diagnosis: Recognized by the mid-sized body length (1.40 mm), broad C+Sc (black arrow) ( Fig. 4 ), vesica with almost one circular loop with acute tip, and anophoric process with multiple pointed tips (black arrows) ( Fig. 7 ).

Description: Male: total body length 1.40 mm; length from posterior margin of pronotum to posterior wing margin 1.03 mm; greatest width across pronotum 0.61 mm; greatest width across forewings 0.85 mm. General coloration: mix of pale and darker brown or reddish brown. Vestiture: Dorsum with sparse setae, setae long; setae on posterior margin of forewing extremely 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 large, 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 inflated, elongate, with median notch, without notch articulating with claval process; rc1 about 3 times as long as wide, much 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 slightly wider than 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 ( Fig. 7 ): Pygophore without lobe on right side; vesica with almost one loop, not reaching right pygophore margin, relatively slender at midpoint, tapering to acute tip, close to apex rounded; anophoric ridge with process, process long, with multiple pointed tips; right paramere curved, broad throughout, basal process broad; left paramere curved and tapering, basal process broad.

Female: As in male and generic description.

Collecting method and habitat: Collected using leaf litter sifting and Winkler extraction from mixed hardwood forest.

Figures

FIGURE 4. Dorsal habitus of Guapinannus tatumbia, sp. n., G. tenuis, sp. n., G. tergus, sp. n., G. trilobus, sp. n., and G. uncus, sp. n. Arrows and stars indicate diagnostic features listed in the species diagnoses.

FIGURE 7. Male genitalic features of Guapinannus spp., dorsal view, showing species-diagnostic differences in vesica, right and left parameres, and anophoric process.

FIGURE 9. Known distributions of Guapinannus spp.