Guapinannus artus, 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 : 267

Guapinannus artus , sp. n.

( Figs 2 , 7 , 9 )

Holotype. Male. MEXICO: Veracruz: Road to Ruiz Cortinez , 18.5229°N 95.15441°W, 1114 m, 05 Jun 2016, R. S. Anderson, 1♂ ( UCR _ ENT 00125959 ) ( 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 00125960 ) ( UCR) . Road to Ruiz Cortinez , 18.52241°N 95.14957°W, 1170 m, 04 Jun 2016, R. S. Anderson, 1♀ ( UCR _ ENT 00125961 ) ( UCR) . San Andres Tuxtla Co. : 18.52303°N 95.15453°W, 1109 m, 05 Jun 2016, Manuel Barrios, 2♂ ( UCR _ ENT 00128215 , UCR_ENT 00128216) ( UCR) .

Etymology: Named for narrow rc cell of the forewing in dorsal view after “artus” Latin for narrow.

Diagnosis: Recognized by the mid-sized body length (1.29 mm), elongate oval forewing outline, rc about 5 times as long as wide (black star), tc about 3 times as long as wide ( Fig. 2 ), lateral lobe on right side of pygophore (black star), slender vesica, and short, broad anophoric process with blunt tip (black arrow) ( Fig. 7 ). Similar to G. auriculus , sp. n. that is also known from Veracruz in Mexico but distinguished by the characters listed in the diagnosis.

Description: Male: Total body length 1.29 mm, length from posterior margin of pronotum to posterior wing margin 1.04 mm; greatest width across pronotum 0.54 mm; greatest width across forewings 0.75 mm. General coloration: mix of pale and darker brown or reddish brown. Vestiture: Dorsum with dense setae, setae long; 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 large, in distinct clusters; scutellum in dorsal view abruptly narrowed to tip, tip rounded. Forewing: with outline broad anteriorly, elongate oval; membrane contributing about one third of forewing length, posterior distal margin squarish, veintracing areoles on proximal part of wing absent; C+Sc wider at widest part of wing; distal process of R pronounced; An1 wing organ on corium strongly inflated, rounded, with median notch, without notch articulating with claval process; rc1 about 3 times as long as wide, much wider anteriorly; rc about 5 times as long as wide; tc 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 horse headshaped. Legs: Claws long. Genitalia ( Fig. 7 ): Pygophore with lobe on right side; vesica with between half and one loop, not reaching right pygophore margin, relatively slender at midpoint, tapering to acute tip, close to apex rounded; anophoric ridge with process, process short, broad, with single lobe curved, tip blunt; right paramere curved, tapering, basal process narrow; left paramere, tapering, basal process narrow.

Female: As in male and generic description.

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

Figures

FIGURE 2. Habitus in dorsal, lateral, and ventral view of Guapinannus anaticulus, sp. n., and in dorsal view of G. artus, sp. n., G. auriculus, sp. n., G. castigatus, sp. n., G. clava, sp. n., G. dispar, sp. n., and G. falcis, 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.