Guapinannus auriculus, 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 : 268

Guapinannus auriculus , sp. n.

( Figs 2 , 7 , 9 )

Holotype. Male. MEXICO: Veracruz: San Andres Tuxtla Co. : 18.52303°N 95.15453°W, 1109 m, 05 Jun 2016, Manuel Barrios , 4♂ ( UCR _ ENT 00125965 ) ( UCR).

Paratypes: MEXICO: Veracruz: hills above Ruiz Cortinez , 18.5304°N 95.14127°W, 1239 m, 07 Jun 2016, R. S. Anderson, 1#f ( UCR _ ENT 00126156 ) ( UCR) . San Andres Tuxtla Co. : 18.52303°N 95.15453°W, 1109 m, 05 Jun 2016, Manuel Barrios, 8♂ ( UCR _ ENT 00125966 , UCR_ENT 00128211, UCR_ENT 00128214), 13♀ ( UCR _ ENT 00125967 , UCR_ENT 00126150) ( UCR) .

Etymology: Named for the large lobe on the right side of the pygophore after “auricula” Latin for lobe.

Diagnosis: Recognized by the mid-sized body length (1.23 mm), rc about 4 times as long as wide (white star), tc less than 3 times as long as wide ( Fig. 2 ), large lateral lobe on right side of pygophore (black star), slender vesica tapering into acute tip, and anophoric process very short, curved, and pointed (black arrow) ( Fig. 7 ). Similar to G. artus , sp. n. that is also known from Veracruz in Mexico but distinguished by the characters listed in the diagnosis. Additionally, G. auriculus , sp. n. and G. castigatus , sp. n. have a similar vesica, but differ in rc1 shape.

Description: Male: Total body length 1.23 mm; length from posterior margin of pronotum to posterior wing margin 0.9 mm; greatest width across pronotum 0.55 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 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 rounded. Forewing: With outline broad anteriorly; membrane contributing about one third of forewing length, posterior distal margin rounded, 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 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 4 times as long as wide; tc 3 less than 3 times 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 relatively wide and short. Legs: Claws long. Genitalia ( Fig. 7 ): Pygophore with large lobe on right side; vesica with between half and one loop, not reaching right pygophore margin, thick at midpoint, tapering to acute tip, close to apex rounded; anophoric ridge with process, process short, with single lobe curved, tip pointed; right paramere curved, tapering, basal process narrow; left paramere straight, tapering, basal process narrow.

Female: As in male and generic description.

Collecting method and habitat: Collected using sifting leaf litter, Winkler extraction in broadleaf forest and tree ferns.

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.